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BIT450BIT450 SAP Exchange
Infrastructure Development
SAP NetWeaver
Date
Training Center
Instructors
Education Website
Participant HandbookCourse Version: 2005 Q3
Course Duration: 2 Day(s)
Material Number: 50072895
An SAP course - use it to learn, reference it for work
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Copyright
Copyright © 2005 SAP AG. All rights reserved.
No part of this publication may be reproduced or transmitted in any form or for any purpose without
the express permission of SAP AG. Additionally this publication and its contents are provided
solely for your use, this publication and its contents may not be rented, transferred or sold without
the express permission of SAP AG. The information contained herein may be changed without
prior notice.
Some software products marketed by SAP AG and its distributors contain proprietary software
components of other software vendors.
Trademarks
• Microsoft®, WINDOWS®, NT®, EXCEL®, Word®, PowerPoint® and SQL Server® are
registered trademarks of Microsoft Corporation.
• IBM®, DB2®, OS/2®, DB2/6000®, Parallel Sysplex®, MVS/ESA®, RS/6000®, AIX®,S/390®, AS/400®, OS/390®, and OS/400® are registered trademarks of IBM Corporation.
• ORACLE® is a registered trademark of ORACLE Corporation.
• INFORMIX®-OnLine for SAP and INFORMIX® Dynamic ServerTM are registered
trademarks of Informix Software Incorporated.
• UNIX®, X/Open®, OSF/1®, and Motif® are registered trademarks of the Open Group.
• Citrix®, the Citrix logo, ICA®, Program Neighborhood®, MetaFrame®, WinFrame®,
VideoFrame®, MultiWin® and other Citrix product names referenced herein are trademarks
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• HTML, DHTML, XML, XHTML are trademarks or registered trademarks of W3C®, World
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• JAVA® is a registered trademark of Sun Microsystems, Inc.
• JAVASCRIPT® is a registered trademark of Sun Microsystems, Inc., used under license for
technology invented and implemented by Netscape.
• SAP, SAP Logo, R/2, RIVA, R/3, SAP ArchiveLink, SAP Business Workflow, WebFlow, SAP
EarlyWatch, BAPI, SAPPHIRE, Management Cockpit, mySAP.com Logo and mySAP.com
are trademarks or registered trademarks of SAP AG in Germany and in several other countries
all over the world. All other products mentioned are trademarks or registered trademarks of
their respective companies.
Disclaimer
THESE MATERIALS ARE PROVIDED BY SAP ON AN "AS IS" BASIS, AND SAP EXPRESSLY
DISCLAIMS ANY AND ALL WARRANTIES, EXPRESS OR APPLIED, INCLUDING
WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY AND FITNESS FOR APARTICULAR PURPOSE, WITH RESPECT TO THESE MATERIALS AND THE SERVICE,
INFORMATION, TEXT, GRAPHICS, LINKS, OR ANY OTHER MATERIALS AND PRODUCTS
CONTAINED HEREIN. IN NO EVENT SHALL SAP BE LIABLE FOR ANY DIRECT,
INDIRECT, SPECIAL, INCIDENTAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES OF ANY
KIND WHATSOEVER, INCLUDING WITHOUT LIMITATION LOST REVENUES OR LOST
PROFITS, WHICH MAY RESULT FROM THE USE OF THESE MATERIALS OR INCLUDED
SOFTWARE COMPONENTS.
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About This Handbook
This handbook is intended to complement the instructor-led presentation of this
course, and serve as a source of reference. It is not suitable for self-study.
Typographic Conventions
American English is the standard used in this handbook. The following
typographic conventions are also used.
Type Style Description
Example text Words or characters that appear on the screen. Theseinclude field names, screen titles, pushbuttons as well
as menu names, paths, and options.
Also used for cross-references to other documentation
both internal (in this documentation) and external (in
other locations, such as SAPNet).
Example text Emphasized words or phrases in body text, titles of
graphics, and tables
EXAMPLE TEXT Names of elements in the system. These include
report names, program names, transaction codes, tablenames, and individual key words of a programming
language, when surrounded by body text, for example
SELECT and INCLUDE.
Example text Screen output. This includes file and directory names
and their paths, messages, names of variables and
parameters, and passages of the source text of a
program.
Example text Exact user entry. These are words and characters that
you enter in the system exactly as they appear in the
documentation.
<Example text> Variable user entry. Pointed brackets indicate that you
replace these words and characters with appropriate
entries.
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About This Handbook BIT450
Icons in Body Text
The following icons are used in this handbook.
Icon Meaning
For more information, tips, or background
Note or further explanation of previous point
Exception or caution
Procedures
Indicates that the item is displayed in the instructor’s
presentation.
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Contents
Course Overview ....... ....... ....... ....... ....... ...... ....... ....... .. vii
Course Goals ....... ........ ........ ........ ........ ....... ........ .....vii
Course Objectives ... .... ... .... .... .... .... .... .... ... .... ... .... .... .vii
Unit 1: Development Objects in SAP XI .. .. ... .. .. ... .. .. .. ... .. ... .. 1
XI Components and Connectivity. .. ... .. ... ... .. ... .. ... ... .. .. ... ... 3
Development in SAP XI ... .... ... .... ... .... ... .... .... .... ... .... ... 12
Introduction to Proxies ............................................... 29
Proxy Runtime Configuration.. .. .. ... ... .. ... .. ... ... .. ... .. ... ... .. 38Integration Scenarios in the Integration Repository .. . . .. . .. . . . .. 47
Unit 2: Generating Proxy Objects.................................... 67
Introduction to the Proxy Program Model.......................... 68
ABAP Proxy Generation . . . .. . . . .. . .. . . . .. . . . .. . .. . . . . .. . . .. . . .. . . . .. 74Java Proxy Generation.. ... .... .... .... .... .... .... ... .... ... .... .... 83
Enhancing Interfaces .... .... ... .... .... .... .... ... .... ... .... ... .... 96
Unit 3: Using Generated Proxy Objects ........................... 109
ABAP Server Proxy Implementation . . . . . .. . . .. . . .. . . . . .. . .. . . . .. . 110
Using Java Client Proxies...........................................122Configuration in the Integration Directory.........................138
Java Server Proxy Implementation. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .147Using ABAP Client Proxies .. ... .. ... ... .. ... .. ... ... .. .. ... .. ... ... 151
Server Proxies, Web Services, and WSDL.......................161
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Contents BIT450
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Course Overview
This course provides an introduction to the program model for proxy objects.
Together with SAP Exchange Infrastructure, this program model presents a new
approach to implementing integration scenarios. In this approach, message formats
are saved centrally in a repository. In this repository, the actual functions are then
created in the back end by generating proxy objects. The course structure takes the
participants through this procedure. Unit 1 introduces the concept and looks at the
definition of message formats, unit 2 addresses the subsequent generation of proxy
objects for ABAP and Java environments, and unit 3 explains how to use these
objects to exchange messages using SAP Exchange Infrastructure.
Target Audience
This course is intended for the following audiences:
• ABAP and Java developers who want to implement functions in SAP
systems as server proxies as part of the implementation of an SAP Exchange
Infrastructure scenario
• ABAP and Java developers who want to develop function calls in an SAP
system by using client proxy objects as part of the implementation of an SAP
Exchange Infrastructure scenario.
Course PrerequisitesRequired Knowledge
• BIT400
• BC400
• JA100
Recommended Knowledge
• BC401
• JA300
• Basic knowledge of Web services and WSDL
Course Goals
This course will prepare you to:
• Understand how proxy objects are used in SAP Exchange Infrastructure (XI)
• Generate proxies for connecting SAP systems to XI
• Implement generated proxies and use them in your own programs
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Course Overview BIT450
Course Objectives
After completing this course, you will be able to:• Assess when to use proxy objects
• Execute the necessary proxy generation
• Use the generated client proxy objects
• Implement the generated server proxy objects
SAP Software Component Information
The information in this course pertains to the following SAP Software Components
and releases:
• XI 3.0
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Unit 1Development Objects in SAP XI
Unit Overview
Introduction to the topic of “XI development” and revision of the basic principles
of XI with reference to proxy technology.
Unit Objectives
After completing this unit, you will be able to:
• Understand the components of SAP Exchange Infrastructure
• List the options available for connecting application systems to SAP
Exchange Infrastructure
• Understand the concepts of products, software components, and namespaces
• Create your own namespaces in the Integration Repository
• Describe the procedures for using proxies• Understand the scenario used in the course
• Configure an SAP system based on the SAP WebAS ABAP for proxy
communication, or check the configuration
• Configure an SAP system based on the SAP WebAS Java for proxy
communication, or check the configuration
• Create integration scenarios in the Integration Repository
• Create objects for message interfaces in the Integration Repository
Unit Contents
Lesson: XI Components and Connectivity......................................3
Exercise 1: Checking the Entries in the System Landscape Directory .9Lesson: Development in SAP XI............................................... 12
Exercise 2: Checking Namespaces. .. .. ... .. .. ... .. ... ... .. .. ... ... .. ... . 23Exercise 3: Creating and Using Software Components................ 25
Lesson: Introduction to Proxies ... .. ... ... .. ... .. ... ... .. ... .. ... .. ... .. ... ... . 29
Exercise 4: Checking Existing Interface Objects........................ 35
Lesson: Proxy Runtime Configuration ........................................ 38Exercise 5: Checking the Local Integration Engine of a Business
System........................................................................ 43
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Unit 1: Development Objects in SAP XI BIT450
Lesson: Integration Scenarios in the Integration Repository. . . . .. . . .. . . . .. 47
Exercise 6: Creating an Integration Scenario and Repository Objects in
the Integration Repository .. ... .. ... ... .. ... .. ... ... .. ... .. ... ... .. .. ... ... . 53
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BIT450 Lesson: XI Components and Connectivity
Lesson: XI Components and Connectivity
Lesson Overview
This lesson provides a recap of the architecture of the SAP Exchange
Infrastructure.
Lesson Objectives
After completing this lesson, you will be able to:
• Understand the components of SAP Exchange Infrastructure
• List the options available for connecting application systems to SAP
Exchange Infrastructure
Business Example
You are responsible for development in SAP Exchange Infrastructure and need an
overview of the architecture and components of SAP Exchange Infrastructure.
Components of SAP Exchange Infrastructure
The aim of SAP Exchange Infrastructure is to provide a platform that allows
different interfaces to connect using a uniform technology. This improves the
overview and also reduces maintenance costs.
Figure 1: System Landscape with SAP Exchange Infrastructure
Components of SAP Exchange Infrastructure
SAP Exchange Infrastructure comprises various components:
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Unit 1: Development Objects in SAP XI BIT450
Figure 2: Architecture of SAP Exchange Infrastructure
• You can enter your system landscape in the System Landscape Directory
(SLD).
• You enter all the necessary interfaces of the various software components, as
well as mapping programs, in the Integration Repository.
• You configure the scenarios in the Integration Directory.
• The Integration Builder is the user interface (GUI) for working with the Integration Repository and Integration Directory.
• The Business Process Engine controls the correlation of messages and the
processing of messages within Business Process Management (BPM).
• The Integration Engine of the Integration Server ensures that messages are
processed according to the configuration in the Integration Directory. This
involves determining who the receiver is and mapping the inbound message
to the receiver interface structure.
• The Adapter Engine forms the basis of many adapters for connecting
systems to the Integration Server .
• The Runtime Workbench is the main tool for central monitoring of
components and messages.
Connecting the Application Systems to XI
A local Integration Engine can be used on any application system that runs on
SAP Web AS release 6.20 or higher. This means you can implement application
scenarios from XI . You define the interface structure in the Integration Repository.
You can then generate and call an outbound proxy in the application system; this
proxy creates a message in XI format from the interface parameters and sends
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BIT450 Lesson: XI Components and Connectivity
it to the Integration Server . You can generate an inbound proxy in the target
system; this proxy receives a message in XI format from the Integration Server
and processes the data. ABAP and Java proxy generation is supported.
Figure 3: Runtime Procedure: Conversion to XI Message Format
At present, all other application systems are connected to XI using adapters. The
sender system provides data in a document format and sends it to the adapter byusing a particular protocol. The adapter converts the document to XI format and
sends it to the Integration Server in http(s) format. The adapter that is to receive
the message is specified in the configuration. The Integration Server sends the
message to the adapter. The adapter converts the message to the receiver protocol
and sends it to the receiver.
Proxy Technology and SAP Adapters
SAP adapters (RFC adapters, IDoc adapters) are designed for connecting SAP
systems that run on a technical basis predating SAP Web AS 6.20 (for example,
R/3 4.6), and which therefore do not directly support the XI protocol. Since SAP
adapters (based on the RFC protocol) can also be used to connect SAP systems
based on SAP Web AS >= 6.20, when you develop a new interface, you must
decide which of the two options to use.
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Unit 1: Development Objects in SAP XI BIT450
Figure 4: Overview of Proxies and Adapters
This requires an understanding of the SAP Exchange Infrastructure concept,
which is based on message formats (message interfaces). These message formats
are saved centrally in the Integration Repository using Internet standards
(WSDL, XML schema), independently of the programming languages actually
used (ABAP, Java, .NET). However, if you use SAP adapters, the interfaces are
developed locally in the business system and only imported to the Integration
Repository later. This does not comply with the SAP Exchange Infrastructure
concept of central interface development in the Integration Repository.
This central interface development simplifies the realization of integration
scenarios and supports the integration of external interfaces by importing the
corresponding WSDL files.
There is another significant difference of a more technical nature, namely the
protocol used. It is not always possible to communicate with the back-end system
using the RFC protocol. However, this is necessary when using an SAP adapter,
because the Adapter Engine communicates with the SAP system using RFC. The
HTTP protocol, which is used in proxy technology, is less problematic, particularly
if firewalls are used between the Integration Server and the business system.
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BIT450 Lesson: XI Components and Connectivity
Figure 5: Outbound vs. Inbound
It is important to understand the definition of outbound and inbound. In the
application, an outbound message interface is used for a message sent from
the application to the Integration Server . In the context of adapters, messages
that are sent to the Integration Server require a sender adapter; this adapter
sends messages from the sender to the Integration Server . In the case of proxies,client proxies correspond to an outbound interface and server proxies represent
an inbound interface.
Furthermore, when using adapters, the exchanged data format is adapter-specific
and differs from the proxy XML data format.
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Unit 1: Development Objects in SAP XI BIT450
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BIT450 Lesson: XI Components and Connectivity
Exercise 1: Checking the Entries in the
System Landscape DirectoryExercise Objectives
After completing this exercise, you will be able to:
• Check the settings for your business systems in the System Landscape
Directory (SLD)
Business Example
You want to implement business processes in an existing system landscape.
SAP Exchange Infrastructure is installed and the existing system landscape is
configured in the SLD. You want to check these settings to ensure that they are
complete and to make alterations where applicable.
Task: SLD Configuration in the Integration Server
Check the configuration in the System Landscape Directory (SLD).
1. Log on to the System Landscape Directory.
2. Check whether the software component SC_BIT450_CIS is configured
in the SLD.
3. Check whether the business system Training is configured in the SLD.
4. Which technical system is assigned to the business system Training in the
SLD?
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Unit 1: Development Objects in SAP XI BIT450
Solution 1: Checking the Entries in the
System Landscape DirectoryTask: SLD Configuration in the Integration Server
Check the configuration in the System Landscape Directory (SLD).
1. Log on to the System Landscape Directory.
a) Call transaction SXMB_IFR to display a menu for the SAP Exchange
Infrastructure J2EE Engine in the Web browser. It is also possible to
call the System Landscape Directory from this page. The user name
and password are the same as those required to log on to the Integration
Server .
2. Check whether the software component SC_BIT450_CIS is configured
in the SLD.
a) To display the products and software components, choose Software!
Software Catalog from the SLD initial screen. In the Software Type
field, select Software Components. To view only the relevant software
components, enter the prefix SC_ in the Display Filter filter field and
choose Enter (or select the filter icon).
3. Check whether the business system Training is configured in the SLD.
a) To navigate back to the initial screen of the SLD, choose Home. To
display the business systems, choose Business Landscape on the SLDinitial screen.
b) The business system Training is maintained as an SAP system; it
corresponds to client 821 of the Integration Server .
4. Which technical system is assigned to the business system Training in the
SLD?
Answer: This information is displayed in the overview or the detailed view
of the business systems:
The business system Training is assigned to client 821 of the XI system.
A technical system is also assigned to the business system, which has the
same system ID as the XI system.
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BIT450 Lesson: XI Components and Connectivity
Lesson Summary
You should now be able to:• Understand the components of SAP Exchange Infrastructure
• List the options available for connecting application systems to SAP
Exchange Infrastructure
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Unit 1: Development Objects in SAP XI BIT450
Lesson: Development in SAP XI
Lesson Overview
This lesson gives an overview of development objects and development
environments.
Lesson Objectives
After completing this lesson, you will be able to:
• Understand the concepts of products, software components, and namespaces
• Create your own namespaces in the Integration Repository
Business Example
You are a new member of an XI development team and need an overview of the
components involved and the procedure in a development project.
Development Objects and Programming Languages
Since SAP Exchange Infrastructure is based on the SAP Web Application Server ,
which as of release 6.20 enables ABAP development as well as Java development,
it may seem a good idea to separate development according to the various
programming languages, but this is not necessarily the case.
Figure 6: SAP Web AS and SAP XI
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BIT450 Lesson: Development in SAP XI
Although many SAP XI tools are based on Java, it actually makes more sense to
organize development according to development objects. All development objects
are located in the Integration Repository (the Integration Directory essentiallycontains scenario configurations). Development objects are created in the
Integration Repository independently of the development environment used later.
In addition, some development objects, in particular proxy objects, are located
in the application system and are dependent on the respective development
environment. These are the proxy objects generated for a message interface in
the Integration Repository and the objects that are used by the generated proxy
objects, for example programs.
Products, Software Components, and Namespaces
In an SAP environment, a product corresponds to a technical SAP component. A product consists of one or more software components and customers can see it,
install it, and renew it. A product is delivered by way of a product version, which
in turn contains software component versions.
Figure 7: Product and Software Component Versions (SWCV) in the SLD
A software component is a reusable product module that can be individually
upgraded or have patches installed. Software components are versioned to
enable development to continue alongside the productive use of a softwarecomponent. Development therefore always takes place in a software component
version (SWCV). The development manager creates a separate namespace in the
Integration Repository for objects that belong together semantically. This is similar
to ABAP packages (previously called development classes) or Java packages. In
this way, the objects are identified uniquely by their name and namespace. The
objects of a namespace are always delivered together with the relevant SWCV.
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Unit 1: Development Objects in SAP XI BIT450
A namespace in XML is a user-defined constant that follows two conventions:
the prefix http:// and the prefix urn:. The prefix http:// does not necessarily mean
that the namespace is a website. It is more important that namespaces must beglobally unique, not just within the SWCV. Therefore, the use of a company name
in the namespace is a valid option.
The namespaces in the Integration Repository also have implications for proxy
objects that are generated later, since they determine the package names for the
Java proxy objects. For further information on namespaces, see the documentation
in the SAP Library: SAP Exchange Infrastructure! Design and Configuration
Time! Software Logistics!Organization of Shipment Contents! Namespaces.
Caution: When creating your own namespaces, the name components
must never start with a number. If this is nevertheless the case, an
underscore (_) is placed before the number when the Java proxy objectsare generated.
The decisive and visible factors for the developer responsible for editing the
objects in the Integration Repository are the SWCV and the namespace (the
products are only visible in the Integration Repository in the integration scenarios).
Figure 8: Importing an SWCV to the Integration Repository
In the same way that software components are versioned, there are also product
versions. The relationship between a product version and a software component
version is saved in the SLD as a software feature.
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BIT450 Lesson: Development in SAP XI
The following preparations need to be made before development starts:
• Create a product version in the SLD
• Create a software component version (SWCV) for the product version
• Import the SWCV to the Integration Repository
• Create namespaces for the SWCV in the Integration Repository
Before you start development, you need to create the product and software
component versions in the SLD. If you are creating a new product and new
software components, you must first create the product, then the software
components, and finally the corresponding versions. If a product and software
components already exist, you need to create a new version.
Hint: There is also a based-on relationship for software components. If
SAP component functions are used in a customer software component,
it makes sense to save these in the SLD using the based-on relationship.
This is saved as a software feature for the software component version as
a component-component requisite association. For example, SAP ABA
6.20 is based on SAP Basis 6.20.
The software component versions are then imported to the Integration Repository.
You create namespaces for the individual developers in the Integration Repository
in the SWCV. If the SWCV is a new version of an existing SWCV, you can copy
the objects from the old SWCV to the new version by using a release transfer.
For an SWCV you can also save logon data for an SAP back end, which enables
you to import RFC signatures and IDoc types. You can flag SWCVs as original
objects or as modifiable objects by using the relevant object attributes. You set
both attributes in the system in which a SWCV is to be developed.
User-specific change lists are used in the Integration Repository during
development, which must be closed by activating the objects. Once development
is finished, the SWCV is flagged as not modifiable and the objects are released. As
of XI 2.0, this means that the objects are exported from the Integration Repository,
for example, for import to a test system.
If an SWCV is to be used in other systems (for example, imported to a test
system), neither of the attributes Objects Are Original Objects or Objects Are Modifiable are set. This prevents changes being made. If an attempt is made
to reset the attributes at a later date, warning messages will appear to prevent
changes from being made unintentionally.
Development Landscape
As in R/3, a development landscape typically comprises a development system
(DEV), a TEST system and a productive XI system (PROD).
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Unit 1: Development Objects in SAP XI BIT450
The System Landscape Directory (SLD) is typically used for all three XI systems.
Hint: It is also technically possible to create a separate SLD for each
XI system. In this case, data from the development SLD system can be
exported to the subsequent SLD system.
Similarly, the development objects of the Integration Repository are also
transported to the subsequent systems by export/import (or using the CMS:
Change Management Service, see below). It is possible to transport complete
software component versions, individual namespaces of a software component
version, or just single objects. For the Integration Directory configuration data,
the receiver and interface determinations can also be transported by export or
import (including mapping). However, you have to recreate the communication
channels and logon data for each subsequent system, because each system hasdifferent technical systems and logon data.
Once the data has been exported from the Integration Repository, you have to
move the export file to the target system import directory, and do the same for
the export from the Integration Directory. The corresponding directories are as
follows:
Integration Repository
Export <systemdir>/xi/repository_server/export
Import <systemdir>/xi/repository_server/import
Integration Directory
Export <systemdir>/xi/directory_server/export
Import <systemdir>/xi/directory_server/import
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BIT450 Lesson: Development in SAP XI
Figure 9: XI Development Landscape
Business System Groups: In the standard scenario, whereby one SLD is used for
all XI systems in a development landscape, you can create business system groups
in the SLD (each group is assigned to an Integration Server ). For example, you
can create group G1 as a group of business systems in a development landscape
and group G2 as a group of business systems in a test landscape. The business
systems are assigned to the groups automatically because each business system isalready assigned to an Integration Server .
Next, you maintain the transport targets, that is, assign a business system from
group G1 to a business system from group G2. You do this directly in the business
system settings. Since the business system is already assigned to a business system
group, you just need to assign a business system from another group by choosing
Transport Targets in the detail view of the business system.
Figure 10: Business System Groups and Transport Targets in the SLD
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Unit 1: Development Objects in SAP XI BIT450
Maintaining these transport targets means that when you import configuration data
(for example, from the development system) to the Integration Directory of a
subsequent system, the business system names are converted using the transporttarget information in the SLD. The business system names are converted in the
receiver determinations, the interface determinations, and the routing conditions.
The Change Management Service (CMS) is used for central administration of
the Java development environment and the transports to the Web AS 6.40 across
the whole software lifecycle. You can use it to configure development landscapes
and transport software changes. The functions of the CMS are closely related to
the System Landscape Directory (SLD). As an administrator tool, the CMS joins
all involved components together into one unit, which can also be used to realize
distributed development projects.
Hint: For more information on how to use the CMS and its restrictions,
see SAP Note 754143 CMS notes / restrictions, and related notes.
Figure 11: Change Management Server (CMS) for SAP XI
If the CMS is set up on the Java side of the XI Integration Server , on the homepage
of the Exchange Infrastructure tools, you can use Administration to set for which
objects the CMS should be used (menu path Repository / CMS Adjustment CMS
transport settings). This is independent of the SWCV.
Authorizations
A series of composite roles are supplied for the various development activities in
XI , which contain the roles for the ABAP and J2EE parts. The following table
shows the most important composite roles together with information on whether
they have been assigned for the course for the users BIT450-## in one of the
clients used (OK), whether they have only been assigned to one component (J for
J2EE and A for ABAP), or whether they have not been assigned at all (-).
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BIT450 Lesson: Development in SAP XI
Composite Roles in SAP XI and in the Course
Composite Role 800 821
SAP_XI_DISPLAY_USER OK OK
SAP_XI_DEVELOPER (J2EE) OK
SAP_XI_CONFIGURATOR OK -
SAP_XI_MONITOR - -
SAP_XI_CONTENT_ORGANIZER - -
SAP_XI_ADMINISTRATOR - -
The users BIT450-## in client 821 have also been assigned authorization for the
ABAP Workbench (SE80). The individual roles are described below, with an
explanation of how to look them up in role maintenance (PFCG).
SAP_XI_DISPLAY_USER A user with this role can view all content from
the Integration Repository, the Integration Directory, the System Landscape
Directory, the Integration Engine/Server , and so on, within SAP Exchange
Infrastructure.
SAP_XI_DEVELOPER The XI developer is responsible for all activities
in SAP Exchange Infrastructure that involve the design and development of
business processes. In particular, this includes the design of integration scenarios,
interfaces, and mappings in the Integration Repository using the Integration
Builder , as well as the import of existing interfaces from business systems. The
XI developer is also responsible for generating proxies (ABAP and Java) andimplementing them in business systems.
SAP_XI_CONFIGURATOR The XI configurator is responsible for all activities
in SAP Exchange Infrastructure that involve the configuration of business
processes (integration content). In particular, this includes the logical routing
settings, mapping, physical routing in the Integration Builder and maintenance of
business systems and the System Landscape Directory. The XI configurator is also
responsible for maintaining configuration data for the IDoc adapter (metadata).
SAP_XI_MONITOR The XI monitor is responsible for all activities in SAP
Exchange Infrastructure that involve monitoring. In particular, this includes
monitoring XML message processing and message throughput, as well as error handling and status tracking. It also includes the monitoring of processed IDocs,
RFCs, and other messages in adapters. The XI monitor can also check the contents
of the runtime cache in the Integration Server and trigger cache updates, for
example.
SAP_XI_CONTENT_ORGANIZER The XI content organizer is responsible
for activities in SAP Exchange Infrastructure that involve the organization
and structuring of the contents of the Integration Repository, the Integration
Directory, and the System Landscape Directory. These are more important
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Unit 1: Development Objects in SAP XI BIT450
tasks that are not typically performed by an XI developer or an XI configurator
(for example, maintenance and import of software components in the System
Landscape Directory).
SAP_XI_ADMINISTRATOR The XI administrator is responsible for all
activities in SAP Exchange Infrastructure that involve technical configuration and
administration. In particular, this includes the settings for the Integration Engine,
the Integration Server , the Integration Builder (the Integration Repository and
Directory), the System Landscape Directory, the Runtime Workbench, and the
IDoc adapter. The XI administrator is also responsible for maintaining the SAP
Exchange Infrastructure profile data (Exchange Profile).
SAP Back-End System Development for SAP Adapters
Development in SAP back-end systems, for example R/3 4.0, corresponds to thetechnologies and procedures from the areas of RFC programming and ALE.
There are therefore no XI-specific development activities to be taken into account
for connecting SAP back-end systems. For the SAP back-end system, there is
no difference between the RFC or ALE connection to XI and the connection to
another SAP back-end system. It is only necessary to configure the SAP adapters
(RFC adapters and IDoc adapters), as described in the course BIT400.
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BIT450 Lesson: Development in SAP XI
Figure 12: Development in the SAP Back End: Standard
• Inbound RFC
To receive inbound RFC calls, you have to create an RFC-enabled function
module (RFM: remote-enabled function module) in the back-end system and
import the RFC signature to the Integration Repository.
• Inbound ALE
An IDoc type must exist as the structure for the data record, and you have
to make the standard ALE configurations. You have to import the IDoc
type into the Integration Repository.• Outbound RFC
You have to create an RFC destination for the RFC adapter that can be used
in an application. The RFC signature for the called function module (RFM)
must be imported in the Integration Repository.
• Outbound ALE
You have to create an RFC destination for the IDoc adapter that can be
used in ALE customizing, and an IDoc type that must be imported into the
Integration Repository.
As well as the standard procedures for RFC and ALE technology, you also haveto configure the SAP adapters and make the XI configuration settings in the
Integration Directory.
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Unit 1: Development Objects in SAP XI BIT450
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BIT450 Lesson: Development in SAP XI
Exercise 2: Checking Namespaces
Exercise Objectives
After completing this exercise, you will be able to:
• Check the namespaces for a software component version imported to the
Integration Repository
Business Example
As a member of a development project, you have to create your own objects in the
Integration Repository and save them in a separate namespace.
Task:Check the software components SC_BIT450_SALES and SC_BIT450_CIS
in the Integration Repository.
1. Log on to the Integration Server . From the menu, start the Integration
Builder and log on to the Integration Repository.
2. Check which namespaces the software component versions
SC_BIT450_SALES and SC_BIT450_CIS contain.
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Unit 1: Development Objects in SAP XI BIT450
Solution 2: Checking Namespaces
Task:
Check the software components SC_BIT450_SALES and SC_BIT450_CIS
in the Integration Repository.
1. Log on to the Integration Server . From the menu, start the Integration
Builder and log on to the Integration Repository.
a) Log on to client 800 in the training system.
b) Choose Exchange Infrastructure: Integration Builder ! Start
Integration Builder or call transaction SXMB_IFR. Choose Repository
(Design). The user name and password are the same as those required
to log on to the Integration Server .
2. Check which namespaces the software component versions
SC_BIT450_SALES and SC_BIT450_CIS contain.
a) To navigate to the individual namespaces, open the software
components and the software component versions. To see where the
namespaces are maintained, double click the software component
version.
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BIT450 Lesson: Development in SAP XI
Exercise 3: Creating and Using Software
ComponentsExercise Objectives
After completing this exercise, you will be able to:
• Create your own software components in the SLD
• Import software components into the Integration Repository
Business Example
To develop your own interfaces, you need your own software component.
Task 1:
Create the software component SC_BIT450_MARKETING_## Version 1.0 in
the System Landscape Directory for the product P_BIT450_MARKETING.
1. Log on to the System Landscape Directory (SLD).
2. In the SLD, navigate to the list of software components.
3. Create a new software component SC_BIT450_MARKETING_## Version
1.0 for the vendor bit450.com.
Task 2:Import the software component SC_BIT450_MARKETING_## Version
1.0 from the SLD into the Integration Repository and create the namespace
http://bit450.com/xi/marketing##.
1. Log on to the Integration Repository.
2. Import your software component SC_BIT450_MARKETING_## Version
1.0.
3. Open your software component version SC_BIT450_MARKETING_##
Version 1.0 and enter the namespace http://bit450.com/xi/marketing##
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BIT450 Lesson: Development in SAP XI
Task 2:
Import the software component SC_BIT450_MARKETING_## Version
1.0 from the SLD into the Integration Repository and create the namespace
http://bit450.com/xi/marketing##.
1. Log on to the Integration Repository.
a) The homepage of the Integration Builder (transaction SXMB_IFR)
provides a link for logging on to the Integration Repository.
b) Log on with your user BIT450-## and your password from the
Integration Server client 800.
2. Import your software component SC_BIT450_MARKETING_## Version
1.0.
a) From the menu, choose Tools / Copy from System Landscape Directory
/ Import Software Component Versions.
b) In the list of software component versions, select the line of your
software component SC_BIT450_MARKETING_## Version 1.0
and choose Import .
c) After the message to report successful import has been displayed in the
import log, exit the list of software component versions by choosing
Finish.
3. Open your software component version SC_BIT450_MARKETING_##
Version 1.0 and enter the namespace http://bit450.com/xi/marketing##
a) On the Objects tab page, the software components are listed in
alphabetical order. Navigate to your software component and open it so
that the software component version SC_BIT450_MARKETING_##
Version 1.0 is displayed. Double click to open the detail screen for
the software component version.
b) Switch to change mode and in the Namespaces area, enter the
namespace http://bit450.com/xi/marketing##.
c) Save your changes.
d) Your namespace is displayed in the left area of the menu under the
software component version SC_BIT450_MARKETING_## Version1.0. You can open the namespace and display the subareas.
e) Activate all your changes.
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Unit 1: Development Objects in SAP XI BIT450
Lesson Summary
You should now be able to:• Understand the concepts of products, software components, and namespaces
• Create your own namespaces in the Integration Repository
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BIT450 Lesson: Introduction to Proxies
Lesson: Introduction to Proxies
Lesson Overview
This lesson provides an overview of proxy technology.
Lesson Objectives
After completing this lesson, you will be able to:
• Describe the procedures for using proxies
• Understand the scenario used in the course
Business ExampleYour company already uses SAP Exchange Infrastructure. The company is
implementing a new integration scenario using SAP systems, and you need to plan
the technical conversion and decide whether to use proxies.
Proxy Objects
A proxy is a server function that enables two remote applications to communicate.
Proxy objects act as agents and often perform tasks such as converting transferred
data.
Proxy objects therefore provide “server” services in programming, so that (server)
application functions can be used from a (client) application. These functions usestandard protocols and formats, for example http and XML, independently of the
development language used to implement the server or the client. Each function
has a description, which is used to generate the proxy objects in the appropriate
development environment for the client. The use of proxy objects therefore
enables you to use server application functions in the client application.
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Unit 1: Development Objects in SAP XI BIT450
Figure 13: Proxy Principle: Server Functions
The server functions are described in a representation independent of the
development environments (and languages), typically in the form of special
machine-readable XML files, so that proxy objects can be generated automatically.
The format of the XML files is WSDL (Web Service Description Language. For
further information, see http://www.w3.org/2002/ws).
In XI, the functions are saved as message interfaces in the Integration
Repository and these interfaces are used to generate the proxy objects for the
respective development environment (currently ABAP or Java). Functions are
called using HTTP protocol and special XML data formats.
Proxy Objects in XI
Proxy objects are classes and methods in a programming language that generate
or process messages for a message format defined in the Integration Repository
(message interface). A distinction is made between client proxy for outbound
interfaces and server proxy for inbound interfaces:
Client Proxy Objects
enable you to create messages (which correspond to an outbound message
interface for which the proxy objects were generated) and send these
messages to the Integration Server .
Server Proxy Objects
represent a back-end function that can be called using an XI message (that
corresponds to an inbound message interface).
Hint: In XI 2.0, client proxies were called “outbound proxies”, as they
belong to an outbound message interface, and server proxies were referred
to as “inbound proxies”.
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BIT450 Lesson: Introduction to Proxies
To use proxy objects, the following steps are necessary:
1. Define the message interfaces in the Integration Repository.
2. Generate the proxy objects.
3. Use proxy runtime.
Define the message interfaces in the Integration Repository.
The repository objects to be used for a scenario are saved in the Integration
Repository at design time. This includes the message interface, message
types, and data types. Flagging the message interface as inbound or outbound
also determines whether server or client proxy objects will be generated
for this message interface.
Generate the proxy objects.
The system can then generate the proxy objects for a development
environment (ABAP or Java) from a defined message interface. These
objects are classes, methods, and in some cases structure definitions, that
are used in an inbound scenario to implement server functions, that is, to
process an inbound message that corresponds to the message interface. In an
outbound scenario, the client proxy objects can be used to create and send an
outbound message corresponding to the message interface.
Using the proxy runtime.
To be able to use proxy objects, the business system in question must have a
proxy runtime that enables messages to be sent and received independently
of the scenario and the message format. Proxy runtime includes, amongother things, a local Integration Engine. ABAP proxy runtime belongs to the
ABAP part of the Web AS (in the XI Add-On) and Java proxy runtime is part
of XI Connectivity, which can also be installed separately.
The development process in this case is different from the programming of an
RFC-enabled function module (RFM: R emote-enabled Function Module). RFM
functions are developed (as an inbound interface) in the target system together
with the signature (import and export parameters). The functions can then be
called. When using proxy objects, the interface definition is separated from
the implementation of the actual functions. First, the message format for the
inbound message is saved in the Integration Repository in the form of an inbound
message interface. This definition is used to create a shell (a method) representingthe corresponding interface, into which the functions must be incorporated (for
inbound messages). This is similar to the creation of a function module source
text with a set signature.
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Unit 1: Development Objects in SAP XI BIT450
Figure 14: Proxy Generation and Use
At design time, you create the repository objects, which are then used for proxy
generation to generate proxy objects for a programming language such as ABAP
or Java. At runtime, a method can be accessed to send a message to SAP Exchange
Infrastructure, for example. Proxy runtime is used to send a message from an
SAP system.
Scenario for ExercisesIn the exercises, participants will connect a Java standalone application to a
client of an SAP ABAP system in a synchronous scenario by using proxy
technology. Customer information is saved in the target system (business system
SAP_BACKEND). This customer information is required for sales orders in
the business system WEB_AS_JAVA.
Design Time: First, create the message interfaces CustomerInformation_Re-
quest and CustomerInformation_Provide in the Integration Repository for the
software components SC_BIT450_SALES and SC_BIT450_CIS.
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BIT450 Lesson: Introduction to Proxies
Figure 15: Design View: Creating Interfaces
The next step is to generate the proxy objects for both sides. You have to generate
a CustomerInformation_Request in the caller system by using the generated
proxy method; this request is sent to the central Integration Server . You also
have to implement the generated proxy method in the target system, that is, you
must develop the ABAP instructions for compiling the answer for the message
format CustomerInformation_Provide.
Figure 16: Synchronous Scenario
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Unit 1: Development Objects in SAP XI BIT450
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BIT450 Lesson: Introduction to Proxies
Exercise 4: Checking Existing Interface
ObjectsExercise Objectives
After completing this exercise, you will be able to:
• Find existing interface objects in the Integration Repository.
Business Example
You want to gain an overview of the existing interface objects.
Task:Check which interface objects are available in the SWCV SC_BIT450_CIS in
your namespace http://bit450.com/xi/abap##.
1. Log on to the Integration Repository.
2. Naviagte to the SWCV SC_BIT450_CIS and the namespace
http://bit450.com/xi/abap##, and search for existing message interfaces.
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Unit 1: Development Objects in SAP XI BIT450
Solution 4: Checking Existing Interface
ObjectsTask:
Check which interface objects are available in the SWCV SC_BIT450_CIS in
your namespace http://bit450.com/xi/abap##.
1. Log on to the Integration Repository.
a) Log on to client 800 in the training system.
b) Choose Exchange Infrastructure: Integration Builder ! Start
Integration Builder or call transaction SXMB_IFR. Choose Integration
Repository. The user name and password are the same as those required
to log on to the Integration Server .
2. Naviagte to the SWCV SC_BIT450_CIS and the namespace
http://bit450.com/xi/abap##, and search for existing message interfaces.
a) Open the SWCV SC_BIT450_CIS, then choose version 1.0 and the
namespace http://bit450.com/xi/abap##.
b) Open the Interface Objects / Message Interface node, and double click to
open the existing message interface CustomerInformation_Provide.
c) In the message interface CustomerInformation_Provide, the message
types MtName and MtCustomerInfo, and the fault message type
MissingInformation are referenced. You can double click on thesenames to navigate to the message type definitions. The data types
referenced in the message types are also directly displayed here.
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BIT450 Lesson: Introduction to Proxies
Lesson Summary
You should now be able to:• Describe the procedures for using proxies
• Understand the scenario used in the course
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Unit 1: Development Objects in SAP XI BIT450
Lesson: Proxy Runtime Configuration
Lesson Overview
This lesson explains the required configuration for the ABAP and Java runtime
environments.
Lesson Objectives
After completing this lesson, you will be able to:
• Configure an SAP system based on the SAP WebAS ABAP for proxy
communication, or check the configuration
• Configure an SAP system based on the SAP WebAS Java for proxy
communication, or check the configuration
Business Example
In your company, interfaces of an SAP system are connected to SAP XI using
proxy technology, and you are responsible for checking the configuration.
ABAP Proxy Runtime Configuration
You have to configure the proxy runtime in the business system so that the local
Integration Engine is not the Integration Server itself, but an application system.
You also need to determine to which Integration Server the messages will be sent.In ABAP, you have to make client-specific configuration settings using transaction
SXMB_ADM. You have to specify that each client is an application system, which
means that proxy runtime belongs to a local Integration Engine. You also have to
set the corresponding Integration Server . You can do this directly using a URL, or
by using an existing SM59 destination.
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BIT450 Lesson: Proxy Runtime Configuration
Figure 17: ABAP Proxy Runtime Configuration
As with the application systems, you also have to configure the central Integration
Server as the Integration Server . Of course, in this case you do not need to set
further parameters for the corresponding Integration Server .
For connecting an SAP ABAP back-end system, additional general configuration
steps are required. These are listed briefly below:
• RZ0: Register the technical system in the SLD
• Define the business system in the SLD and import into the directory
• Define a communication channel XI recipient for back end
• SXMB_ADM: Define the Integration Engine as decentral
• SXMB_ADM: Maintain the destination on the central Integration Engine
• Enable access to the SLD: SLDAPICUST + SM59
• Create user XIAPPLUSER
• SXMB_ADM: Activate queues
Hint: These points are covered in more detail in the basic course BIT400.
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Unit 1: Development Objects in SAP XI BIT450
Java Proxy Runtime Configuration
The use of Java proxies requires a SAP J2EE Engine 6.40 SP5 or higher.
Together with the Messaging System (MS), the Java proxy runtime (JPR) must
be installed on the SAP J2EE Engine. Both the JPR and the MS are components
of the XI 3.0 Adapter Framework (AF), which is available from the SAP Service
Marketplace.
Hint: To install the XI Adapter Framework, you need to install the
following Software Delivery Archives (SDA) and Software Component
Archives (SCA) using the Software Deployment Manager (SDM):
Two SDAs that contain external libs (for license reasons, these cannot be
supplied by SAP):
• aii_af_ra_ms_sonic_client.sda
• aii_adapter_jms_provider_lib.sda
Two SCAs that contain the actual Adapter Framework:
• SAPXIAFCnn_x.sca (contains AF core libraries and services)
• SAPXIAFnn_x.sca (contains AF applications)
(nn stands for the relevant number of the SP, and X is the patch level,
for example SAPXIAF09_0.sca).
Hint: Since the Adapter Framework makes intensive use of the other services of the SAP J2EE Engine, SAP recommends that you install the
AF at the same SP level as the J2EE Engine (from SP9, the SP numbers of
the components have been synchronized).
In contrast to XI 2.0, the Java proxy runtime requires almost no manual
configuration. It is more important that the SAP J2EE Engine is correctly
integrated into the system landscape. The required and optional steps are described
in more detail in the following.
Connection to the SLD:
for security reasons, in XI 3.0, the SLD access data is no
longer maintained in the file dbconnect.properties. Instead, itis stored in the Secure Store of the J2EE Engine, which gets its date
from the Exchange Profile of the Integration Servers. You can configure
the corresponding connection to the Integration Server using the link:
http://<host>:< port>/exchangeProfile/connection. js p.
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BIT450 Lesson: Proxy Runtime Configuration
Figure 18: Configuration of the J2EE Proxy Runtime: Access to the
exchangeProfile
To ensure that SLD access is activated, call the service CPACache in the Visual
Administrator and check whether the parameter SLDAccess has the value true.
The J2EE engine accesses the SLD itself using the configuration of the SLD Data
Supplier service (with the help of the Visual Administrator ).
Business System
In XI 2.0, the JPR uses the file technicalID.properties to determine the
associated business system. In XI 3.0, the business system is identified by the SAP
J2EE Server, which automatically logs on to the SLD when the Adapter
Framework is installed. The business system referenced by the technical system
acts as a sender service for outgoing messages.
Logging and Tracing:
To change the standard logging and tracing settings, use the Visual Administrator
and call the service Log Configuration. Switch to "Advanced Mode" and select
the "Runtime" tab, followed by "Destinations". Here, choose the entries
library_com.sap.aii.proxy.xiruntime_JPRTrace
application_sap.com/com.sap.xi.proxyserver_ProxyServerTrace
Here you can change the relevant log and trace settings at runtime. However, these
settings only take effect if the following settings are made in the LogManager
(in the kernel tree of the server node):
either ForceSingleTraceFile is set to NO
or com.sap.aii.proxy has been added to
SingleTraceFile_UnrestrictedLocations.
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Unit 1: Development Objects in SAP XI BIT450
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BIT450 Lesson: Proxy Runtime Configuration
Exercise 5: Checking the Local Integration
Engine of a Business SystemExercise Objectives
After completing this exercise, you will be able to:
• Check which Integration Server your business system SAP_BACKEND is
assigned to.
Business Example
The client of an SAP system is a business system which exchanges messages by
using SAP Exchange Infrastructure. Therefore, an Integration Server must be
assigned to the client in the SAP system.
Task 1:
Check the SLD for the systems SAP_BACKEND and WEBAS_JAVA.
1. Log on to the SLD and check the list of business systems.
Task 2:
In the Integration Directory, check whether the systems SAP_BACKEND and
WEBAS_JAVA have been imported, and which communication channels are
available.
1. Navigate to the business systems.
Task 3:
Check which Integration Server the business system SAP_BACKEND is
assigned to.
1. Log on to the business system SAP_BACKEND and call the transaction for
configuring the Integration Engine.
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Unit 1: Development Objects in SAP XI BIT450
Solution 5: Checking the Local Integration
Engine of a Business SystemTask 1:
Check the SLD for the systems SAP_BACKEND and WEBAS_JAVA.
1. Log on to the SLD and check the list of business systems.
a) A list of business systems is displayed under System Landscape /
Business Landscape.
b) The systems SAP_BACKEND and WEBAS_JAVA are included in
this list.
c) Select the name of the system to view the detailed information.
Task 2:
In the Integration Directory, check whether the systems SAP_BACKEND and
WEBAS_JAVA have been imported, and which communication channels are
available.
1. Navigate to the business systems.
a) Log on to the Integration Directory.
b) Choose Objects! Service Without Partner ! Business System!
SAP_BACKEND! Communication Channel . You will see thecommunication channel that the instructor created (SAP_Proxy_In).
This channel has the type XI recipient and references an SM59
destination.
c) Choose Objects! Service Without Partner ! Business System
! WEBAS_JAVA! Communication Channel . You will see the
communication channel that the instructor created (J2E_Proxy_In).
This channel has the type XI recipient and references an SM59
destination.
d) Optional: You can log on to the Integration Server (XI client 800)
and use transaction SM59 to check the SM59 destinations referenced
in the communication channels.
Continued on next page
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BIT450 Lesson: Proxy Runtime Configuration
Task 3:
Check which Integration Server the business system SAP_BACKEND is
assigned to.
1. Log on to the business system SAP_BACKEND and call the transaction for
configuring the Integration Engine.
a) Log on to SAP_BACKEND. Use the parameters provided by the
instructor.
b) Call transaction SXMB_ADM to configure the Integration Engine.
c) Under the Configuration node, choose the second entry Configuration
Data (Integration Engine).
d) In the Global Configuration Data section, the Role of Business System
parameter shows that the role LOC Application System is assigned to
the current client. The assigned Integration Engine is configured using
the Corresponding Integration Server parameter, which contains the
URL of the Integration Engine.
Hint: For an explanation of how to configure the URL
for calling the Integration Server , use the F1 help for the
Corresponding Integration Server field.
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Unit 1: Development Objects in SAP XI BIT450
Lesson Summary
You should now be able to:• Configure an SAP system based on the SAP WebAS ABAP for proxy
communication, or check the configuration
• Configure an SAP system based on the SAP WebAS Java for proxy
communication, or check the configuration
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BIT450 Lesson: Integration Scenarios in the Integration Repository
Lesson: Integration Scenarios in the Integration
Repository
Lesson Overview
This lesson introduces the Integration Repository, including integration scenarios
and interface objects.
Lesson Objectives
After completing this lesson, you will be able to:
• Create integration scenarios in the Integration Repository
• Create objects for message interfaces in the Integration Repository
Business Example
You want to implement a new integration scenario using SAP Exchange
Infrastructure. You are a member of a project team and are responsible for creating
the necessary objects in the Integration Repository as well as an integration
scenario, so that your colleagues can later retrace the objects you have created
and used.
Introduction to Integration Scenarios
Business scenarios in the Integration Repository are the graphical representation
of an integration scenario and contain information about the systems involved, as
well as the interfaces and mappings used. They are therefore a type of integration
plan and can be saved, for example, as image files (jpg).
The integration scenarios in the Integration Repository can be copied to the
Integration Directory for generating configuration scenarios.
It is not a prerequisite for production operation to save an integration scenario
in the Integration Repository, but it is recommended for documentation and
retraceability purposes. It also considerably simplifies the later creation of a
configuration scenario in the Integration Repository.
SAP also supplies integration scenarios for your components that use SAP
Exchange Infrastructure.
Elements of Integration Scenarios
An integration scenario enables you to save the components involved in the form
of vertical (colored) columns. These application columns are assigned a role in
the scenario, which is a purely descriptive name. You do not enter any business
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Unit 1: Development Objects in SAP XI BIT450
systems in the integration scenarios. At design time, the integration scenario
should represent the process independently of the business systems that will be
used later.
When you create the application component, you can assign a product from
the SLD. If it is not yet clear which product will be used, or the product is not
maintained in the SLD, you can use a product template instead.
In the components of the integration scenario, you create actions, which represent
the process steps in the scenario. An action sends or receives an (ext.) message.
Message interfaces are saved for the actions, which describe the format of the
message.
A connection line between the actions is used to connect the process steps. It
indicates where messages are exchanged between process steps. The message
interfaces used are entered in the connection line. If different message interfacesare used, you have to create a relevant message mapping in the connection line.
If the connected actions are on the same level, the process is synchronous. If
the action on the right-hand side is below the action on the left-hand side, this
represents an asynchronous scenario step.
Hint: Although an integration scenario is a representation of an
integration scenario that is typically distributed across two or more
components, the integration scenario itself must be assigned as an object
to a component and to a namespace in the Integration Repository. This
also applies to mapping objects, which connect the message interfaces of two components. The component that an integration scenario is assigned
to is not important at this stage. In the scenario used in the following
exercises, the integration scenario and the mapping objects are assigned to
the sender system.
The Integration Scenario for the Exercises
In the exercises, an integration scenario containing the message interfaces to be
used is created in the Integration Repository.
Hint: The software components have already been created and importedto the Integration Repository. The namespaces for the objects to be
created have also been saved in the software component versions.
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Unit 1: Development Objects in SAP XI BIT450
The objects required in the Integration Repository are shown below. The objects
for the software component SC_BIT450_CIS have already been created in the
Integration Repository.
Figure 21: Overview of Message Formats
The Java application sends a query containing a complex data type with two
customer fields. However, the application function in the target system onlyexpects a simple data type with the combined name of the customer. You therefore
require a mapping for this part of the message on the Integration Server .
Figure 22: Mapping Types
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BIT450 Lesson: Integration Scenarios in the Integration Repository
You have to create a message mapping, which maps the outbound message type
with two source fields to the inbound message type with one target field. An
interface mapping is also necessary. This maps the two message interfaces toeach other and contains the message mapping.
Finally, you have to make the relevant configuration settings in the Integration
Directory so that the message sent by the Java application is correctly forwarded
to the target system.
Figure 23: Configuration in the Integration Directory
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Unit 1: Development Objects in SAP XI BIT450
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BIT450 Lesson: Integration Scenarios in the Integration Repository
Exercise 6: Creating an Integration
Scenario and Repository Objects in theIntegration Repository
Exercise Objectives
After completing this exercise, you will be able to:
• Create integration scenarios in the Integration Repository
Business Example
You are a member of a project team and want to implement an integration scenario.
To ensure that the message formats you use and the systems involved can betraced even after your project has been completed, create a integration scenario
containing the necessary information in the Integration Repository along with the
actual message information (message interfaces).
Task 1:
Create an integration scenario called BIT450_CustomerInfoScenario_## in the
Integration Repository.
1. Log on to the Integration Repository.
2. Create a new integration scenario called BIT450_CustomerInfoScenario_##
for your software component version SC_BIT450_SALES 1.0 in your namespace http://bit450.com/xi/java##.
3. Insert the following two application components into your integration
scenario: product version P_BIT450_SALES 1.0 with the role “Sales
and Distribution” and product version P_BIT450_CIS 1.0 with the role
“CustomerInfoCenter”.
4. Insert the action RequestCustomerInformation for product
version P_BIT450_SALES 1.0 with the outbound interface
CustomerInformation_Request into your application component.
Caution: Make sure that you enter the names correctly whencreating the objects since these names are used in all the following
exercises, especially proxy runtime. If you are unsure of the names,
use the graphics from this lesson or ask your instructor.
5. Insert the action you just created and the action ProvideCustomerInforma-
tion (from the software component SC_BIT450_CIS) into your integration
scenario and insert a connection line between the actions.
Continued on next page
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Unit 1: Development Objects in SAP XI BIT450
Task 2:
In the Integration Repository, create the necessary repository objects for the
integration scenario you just created.
Hint: There are two methods for creating the objects: top-down (by
forwards navigation from the integration scenario to the message interface
down to the data types) or bottom-up (from the data types to the message
types up to the message interface). The top-down method is described
below.
1. Log on to the Integration Repository.
2. Check whether the message interface CustomerInformation_Provide for
the software component version (SWCV) SC_BIT450_CIS 1.0 in your namespace http://bit450.com/xi/abap## corresponds to the current scenario
and that only objects from your namespace are referenced.
3. Create the outbound message interface CustomerInformation_Request
saved in the action RequestCustomerInformation in your namespace
http://bit450.com/xi/java##.
It should contain an output message type MtCustomerName, an
input message type MtCustomerInfo, and a fault message type
MissingInformation.
The message type MtCustomerName should in turn use a complex data
type PersonName comprising the elements Surname (XSD:string) andName (XSD:string).
The message type MtCustomerInfo should use the complex data type
CustomerInfo comprising the integer element ID and the string elements
NAME, CUSTTYPE, POSTCODE, and CITY.
4. Create the message mapping CustomerNameMerge for the software
component version SC_BIT450_SALES 1.0 in your namespace
http://bit450.com/xi/java## to map the message types MtCustomerName
and MtName to each other.
In this message mapping, map both the Surname and Name fields from the
source structure, separated by a blank, to MtName (located in the SWCVSC_BIT450_CIS 1.0 in the namespace http://bit450.com/xi/abap##).
The sequence should be first name, then surname.
Test your message mapping.
5. Create the interface mapping CustomerInfoMap for the software
component version SC_BIT450_SALES 1.0 in your namespace
http://bit450.com/xi/java## to map the message interfaces
Continued on next page
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BIT450 Lesson: Integration Scenarios in the Integration Repository
CustomerInformation_Request and CustomerInformation_Provide to
each other (using the message mapping CustomerNameMerge for the
request).
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Unit 1: Development Objects in SAP XI BIT450
Solution 6: Creating an Integration
Scenario and Repository Objects in theIntegration Repository
Task 1:
Create an integration scenario called BIT450_CustomerInfoScenario_## in the
Integration Repository.
1. Log on to the Integration Repository.
a) Log on to client 800 in the training system.
b) Choose Exchange Infrastructure: Integration Builder ! Start
Integration Builder or call transaction SXMB_IFR. Choose Repository(Design). The user name and password are the same as those required
to log on to the Integration Server .
2. Create a new integration scenario called BIT450_CustomerInfoScenario_##
for your software component version SC_BIT450_SALES 1.0 in your
namespace http://bit450.com/xi/java##.
a) Navigate to your namespace http://bit450.com/xi/java## in the
software component version SC_BIT450_SALES 1.0 and expand
the Integration Scenarios & Processes node. Use the context menu
for the Integration Scenarios node to create a new integration
scenario BIT450_CustomerInfoScenario_##. Enter the name on theinitial screen, use the predefined values for namespace and software
component version, and choose Create. You can enter a description in
the detail view. Save the integration scenario.
Continued on next page
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Unit 1: Development Objects in SAP XI BIT450
Caution: Make sure that you enter the names correctly when
creating the objects since these names are used in all the followingexercises, especially proxy runtime. If you are unsure of the names,
use the graphics from this lesson or ask your instructor.
a) Using the context menu for Actions, create an action called
RequestCustomerInformation for the software component
version SC_BIT450_SALES 1.0 in your namespace
http://bit450.com/xi/java##. Enter the name on the initial screen, use
the predefined values for namespace and software component version,
and choose Create.
In the detail view under Use, leave Internal selected. Under
Outbound Interfaces use the icon with the green cross toenter CustomerInformation_Request in the Name field and
http://bit450.com/xi/java## in the Namespace field.
Hint: Since the outbound interface is not created until later,
you can use the F4 input help for the namespace, but not for
the outbound interface.
Save your entries.
Continued on next page
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BIT450 Lesson: Integration Scenarios in the Integration Repository
5. Insert the action you just created and the action ProvideCustomerInforma-
tion (from the software component SC_BIT450_CIS) into your integration
scenario and insert a connection line between the actions.
a) Navigate to your integration scenario (in software component
SC_BIT450_SALES) and insert both actions by choosing Insert Action
from the context menu for the respective component. Insert the action
RequestCustomerInformation into the component with the role Sales
and Distribution and insert the action ProvideCustomerInformation
into CustomerInfoCenter .
Hint: Since the actions are assigned to the corresponding
software components (and, in this case, the software
components are assigned to different products), make sure thatyou assign them to the correct application component.
b) Select both actions (by holding down the Shift key and clicking the
left mouse button). Then call the context menu and choose Create
Connection Between Selected Actions to create a connection between
the two actions.
c) In the detail view for the connection, select the inbound interface
CustomerInformation_Provide.
d) In the detail view, choose the Mapping tab and maintain the following
mapping under “Assigned Interface Mapping”:
Name CustomerInfoMap
Namespace http://bit450.com/xi/java##
Software component version SC_BIT450_SALES
Hint: Since the interface mapping is not created until later,
you cannot use the input help.
e) Choose Enter to exit the detail view.
f) You also have the option of defining the actions as start or end actions.To do so, in change mode, use the corresponding function in the context
menu for the action in the integration scenario.
g) Save and activate all objects.
Continued on next page
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Unit 1: Development Objects in SAP XI BIT450
Task 2:
In the Integration Repository, create the necessary repository objects for the
integration scenario you just created.
Hint: There are two methods for creating the objects: top-down (by
forwards navigation from the integration scenario to the message interface
down to the data types) or bottom-up (from the data types to the message
types up to the message interface). The top-down method is described
below.
1. Log on to the Integration Repository.
a) Log on to client 800 in the training system.
b) Choose Exchange Infrastructure: Integration Builder ! Start
Integration Builder or call transaction SXMB_IFR. Choose Repositor y
(Design). The user name and password are the same as those required
to log on to the Integration Server .
2. Check whether the message interface CustomerInformation_Provide for
the software component version (SWCV) SC_BIT450_CIS 1.0 in your
namespace http://bit450.com/xi/abap## corresponds to the current scenario
and that only objects from your namespace are referenced.
a) Open the SWCV and navigate to the interface objects in your
namespace. Under Message Interfaces, open the message interface
CustomerInformation_Provide that has already been created bydouble clicking it.
b) Check that the correct message types are referenced by checking the
namespaces and also by navigating to the referenced message types
and then to the data types by double clicking.
c) You can also start a check in the message interface by choosing
Message Interface! Check (F7). If a message type has been entered
that does not exist, an error message will appear.
3. Create the outbound message interface CustomerInformation_Request
saved in the action RequestCustomerInformation in your namespace
http://bit450.com/xi/java##.
It should contain an output message type MtCustomerName, an
input message type MtCustomerInfo, and a fault message type
MissingInformation.
The message type MtCustomerName should in turn use a complex data
type PersonName comprising the elements Surname (XSD:string) and
Name (XSD:string).
Continued on next page
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Unit 1: Development Objects in SAP XI BIT450
-> Element NAME (XSD:string)
-> Element CUSTTYPE (XSD:string)
-> Element POSTCODE (XSD:string)
-> Element CITY (XSD:string)
Hint: Of course, you can also copy the message
type MtCustomerInfo from the ABAP component
SC_BIT450_CIS, including all its dependent objects. You
then only need to manually correct the XML namespace of
the message type.
Save and activate all objects.
Hint: There is an icon under the Object menu option that
enables you to save all objects at the same time.
4. Create the message mapping CustomerNameMerge for the software
component version SC_BIT450_SALES 1.0 in your namespace
http://bit450.com/xi/java## to map the message types MtCustomerName
and MtName to each other.
In this message mapping, map both the Surname and Name fields from the
source structure, separated by a blank, to MtName (located in the SWCV
SC_BIT450_CIS 1.0 in the namespace http://bit450.com/xi/abap##).
The sequence should be first name, then surname.
Test your message mapping.
a) In the objects for your namespace http://bit450.com/xi/java##,
navigate to the Message Mappings node by choosing Mapping Objects.
To create a new message mapping, call the context menu. Enter the
name CustomerNameMerge and choose Create. Enter a description.
b) In the navigation tree for the software component SC_BIT450_SALES ,
search for the Message Types node and the message type
MtCustomerName. Use Drag&Drop to drag this type to the handicon in the source structure (to the field labeled Choose a Source
Message). Search for your message type MtName in the software
component SC_BIT450_SALES , in the Message Types node, and use
Continued on next page
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BIT450 Lesson: Integration Scenarios in the Integration Repository
Lesson Summary
You should now be able to:• Create integration scenarios in the Integration Repository
• Create objects for message interfaces in the Integration Repository
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Unit Summary BIT450
Unit Summary
You should now be able to:
• Understand the components of SAP Exchange Infrastructure
• List the options available for connecting application systems to SAP
Exchange Infrastructure
• Understand the concepts of products, software components, and namespaces
• Create your own namespaces in the Integration Repository
• Describe the procedures for using proxies
• Understand the scenario used in the course
• Configure an SAP system based on the SAP WebAS ABAP for proxy
communication, or check the configuration
• Configure an SAP system based on the SAP WebAS Java for proxycommunication, or check the configuration
• Create integration scenarios in the Integration Repository
• Create objects for message interfaces in the Integration Repository
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Unit 2 Generating Proxy Objects
Unit Overview
The topic has been introduced and you have created the objects in the Integration
Repository. These objects will now be used to generate proxy objects, which will
be used in the actual programming (unit 3).
Unit Objectives
After completing this unit, you will be able to:
• Explain the procedure for using proxy objects
• Describe the relationship between message types and proxy methods
• Create and generate the corresponding ABAP proxy objects for a message
interface from the Integration Repository
• Understand the generated proxy objects
• Generate the corresponding Java proxy objects for a message interface from
the Integration Repository
• Understand the functions of the generated proxy objects
• Enhance message interfaces using data type enhancements without
modifications
• Modify message interfaces
Unit Contents
Lesson: Introduction to the Proxy Program Model .......................... 68
Exercise 7: Generating a WSDL File in the Integration Repository.. . 71Lesson: ABAP Proxy Generation.............................................. 74
Exercise 8: Generating ABAP Proxy Objects... .. .. .. .. .. .. .. .. .. .. .. .. . 79
Lesson: Java Proxy Generation ............................................... 83Exercise 9: Generating Java Proxy Objects ... .. .. .. .. .. .. .. .. .. .. .. .. .. 89
Lesson: Enhancing Interfaces ................................................. 96Exercise 10: Checking Proxy Enhancements ..........................101
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Unit 2: Generating Proxy Objects BIT450
Lesson: Introduction to the Proxy Program Model
Lesson Overview
Introduction to the concept of central interface maintenance.
Lesson Objectives
After completing this lesson, you will be able to:
• Explain the procedure for using proxy objects
• Describe the relationship between message types and proxy methods
Business ExampleYou are responsible for introducing WSDL documents in an integration project
and want to know how this standard is used in XI .
Proxy Model
Figure 24: Proxy Generation and Use
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Unit 2: Generating Proxy Objects BIT450
Figure 26: Proxy Runtime
On the outbound side, the exchange profile and therefore the System Landscape
Directory are accessed to obtain information about the URL of the Integration
Server to be used.
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BIT450 Lesson: Introduction to the Proxy Program Model
Exercise 7: Generating a WSDL File in the
Integration RepositoryExercise Objectives
After completing this exercise, you will be able to:
• Generate a WSDL file for a message interface you have already created
Business Example
You have created a message interface and you want to find out how to describe the
saved information by using the Web service standard WSDL.
Task: Generate a WSDL File for a Message Interface
Generate a WSDL file for your message interface CustomerInformation_Provide
in the Integration Repository.
1. Log on to the Integration Repository.
2. In the Integration Repository, display the detail view of the inbound message
interface CustomerInformation_Provide for software component version
SC_BIT450_CIS 1.0 in your namespace http://bit450.com/xi/abap##.
3. Export the WSDL file to the directory \\xitrans\group##\CustomerInfor-
mation_Provide.wsdl .
4. Display the WSDL file that you have created.
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Unit 2: Generating Proxy Objects BIT450
Solution 7: Generating a WSDL File in the
Integration RepositoryTask: Generate a WSDL File for a Message Interface
Generate a WSDL file for your message interface CustomerInformation_Provide
in the Integration Repository.
1. Log on to the Integration Repository.
a) Log on to client 800 in the training system.
b) Choose Exchange Infrastructure: Integration Builder ! Start
Integration Builder or call transaction SXMB_IFR. Choose Repository
(Design). The user name and password are the same as those required
to log on to the Integration Server .
2. In the Integration Repository, display the detail view of the inbound message
interface CustomerInformation_Provide for software component version
SC_BIT450_CIS 1.0 in your namespace http://bit450.com/xi/abap##.
a) Open the software component version SC_BIT450_CIS 1.0, then your
namespace http://bit450.com/xi/abap##. In the interface objects,
navigate to the message interface CustomerInformation_Provide.
b) Open the detail view of the message interface by double clicking the
name.
3. Export the WSDL file to the directory \\xitrans\group##\CustomerInfor-mation_Provide.wsdl .
a) The detail view has its own menu on the right-hand side of the screen.
Choose Tools! Export WSDL from this menu and save the WSDL file
on your PC as CustomerInformation_Provide.wsdl in the directory
\\xitrans\group##\.
4. Display the WSDL file that you have created.
a) To open the file, you can double click on it directly in the above
directory or open it from within an application such as Notepad.
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Unit 2: Generating Proxy Objects BIT450
Lesson: ABAP Proxy Generation
Lesson Overview
Introduction to ABAP proxy generation and proxy objects.
Lesson Objectives
After completing this lesson, you will be able to:
• Create and generate the corresponding ABAP proxy objects for a message
interface from the Integration Repository
• Understand the generated proxy objects
Business Example
You are an ABAP developer and are responsible for generating ABAP proxy
objects. You want to know the necessary procedure.
Generating ABAP Proxy Objects
The required objects, such as transaction SPROXY, are available in every SAP
system based on SAP Web AS 6.40 or above.
Hint: In the SAP Web Application Server 6.20, the objects are delivered
with the APP-INT add-on.
The transaction SPROXY reads the information stored in the Integration
Repository as a WSDL file and saves it in the SAP system.
The user interface of the transaction SPROXY displays the message interfaces
saved in the Integration Repository under their corresponding software component
version and namespace, grouped into inbound and outbound message interfaces.
If no proxy objects have been generated for a message interface, only the message
interface name is listed. If proxy objects have been generated, then you can
navigate to them directly.
Hint: For SAP components (vendor = ’sap.com’): only the software
component versions that are installed in the same system are offered (see
the table CVERS or view the system status and choose the details button
for the software component version).
To create new proxy objects, select the name of the message interface and then
choose Create Proxy from the context menu.
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BIT450 Lesson: ABAP Proxy Generation
Figure 27: ABAP Proxy Generation: Steps
The next step is to specify a package and a prefix to avoid naming conflicts
between the objects to be created and existing objects.
Hint: If the package checks are activated in the SAP system, the
properties of the package must be correctly maintained for the use of the
generic proxy objects. (To deactivate the package checks, in the table
“PAKPARAM”, set the key “GLOBAL_SWITCH” to “OFF”.)
However, naming conflicts may still occur, or the object names in the Integration
Repository may be longer than is permitted in ABAP. Any such conflicts will be
displayed in a separate window. You can then view the objects that you want to
generate and make any necessary changes to their names before generating them.
The created interface defines the interface (inbound and outbound parameters)
for the method execute_synchronous (or, in the asynchronous case,
execute_asynchronous). The created class implements this interface, which
means it contains a method that corresponds to the interface declaration and can
be used at runtime.
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Unit 2: Generating Proxy Objects BIT450
Figure 28: Generated ABAP Objects Interface
The signature of the method execute_synchronous corresponds to the message
interface. It contains the inbound message type as INPUT, the outbound message
type as OUTPUT and the fault message type as the exception. The method
signature and the data structures will be explained in more detail later.
ABAP Server Proxy ObjectsIn the case of an inbound message interface, you create a method in the generated
class. The method will be implemented later; at the moment it is still empty and
serves to receive and process a message from the Integration Server . You also
create all the necessary dictionary objects for the method interface.
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BIT450 Lesson: ABAP Proxy Generation
Figure 29: Generated ABAP Server Proxy Objects
Hint: Even if the server proxy objects have been activated in the
transaction SPROXY, you still have to activate the generated class
separately. As this method still has to be implemented and activated, the
class itself must also be activated, during this implementation at the latest.
ABAP Client Proxy Objects
In the case of an outbound message interface, you create a method (for example,
execute_synchronous) in the generated class. The method will be used later, for
example, it may be called in a program to send a message to the Integration Server .
You also create all the necessary dictionary objects for the method interface.
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Unit 2: Generating Proxy Objects BIT450
Figure 30: Generated ABAP Proxy Objects (Outbound)
Converting WSDL to the Target Language:
For a short introduction to XSD with details about ABAP
(and Java), listing the exact mapping of XSD data types
to ABAP types, see the documentation in the SAP Library:
SAP Exchange Infrastructure! Design and Configuration Time! Design!
Proxy Generation ! Converting WSDL to the Target Language.
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BIT450 Lesson: ABAP Proxy Generation
Exercise 8: Generating ABAP Proxy
ObjectsExercise Objectives
After completing this exercise, you will be able to:
• Generate all the necessary proxy objects in an SAP client for an inbound
message interface defined in the Integration Repository
Business Example
As part of an XI project, you want to connect an SAP back-end system to the
Integration Server using proxy technology. The message formats have already
been created in the Integration Repository, and you are responsible for creating
(and later implementing) the server proxy objects in the SAP back end.
Task:
Generate all the necessary proxy objects for the inbound message interface
CustomerInformation_Provide in the business system SAP_BACKEND.
1. Log on to the business system SAP_BACKEND and call the transaction
for generating proxy objects.
2. Generate all the necessary proxy objects for the inbound message interface
CustomerInformation_Provide in the software component versionSC_BIT450_CIS 1.0, in the namespace http://bit450.com/xi/abap##.
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Unit 2: Generating Proxy Objects BIT450
Solution 8: Generating ABAP Proxy
ObjectsTask:
Generate all the necessary proxy objects for the inbound message interface
CustomerInformation_Provide in the business system SAP_BACKEND.
1. Log on to the business system SAP_BACKEND and call the transaction
for generating proxy objects.
a) Log on to client 8xx of the SAP_BACKEND system.
b) Call the transaction SPROXY for generating proxy objects.
Continued on next page
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BIT450 Lesson: ABAP Proxy Generation
2. Generate all the necessary proxy objects for the inbound message interface
CustomerInformation_Provide in the software component version
SC_BIT450_CIS 1.0, in the namespace http://bit450.com/xi/abap##.
a) Select the software component version SC_BIT450_CIS 1.0 in
the namespace http://bit450.com/xi/abap##. Navigate to the
Message Interface (inbound) node and then to the message interface
CustomerInformation_Provide.
b) Start the generation process by double clicking the message interface
name CustomerInformation_Provide.
c) A modal dialog box appears. Enter the package $TMP and the prefix
Z##_ (including the underscore).
Hint: The prefix helps to prevent naming conflicts with objects
that already exist in the system and other exercise groups.
Caution: To create proxy objects in an SAP customer system,
you require an OSS key and development authorization.
d) If there are naming conflicts or the object name exceeds the permitted
length, a modal dialog box will alert you to this. In this case, the next
screen has additional tab pages informing you of warnings and conflicts.
e) To view the objects to be generated, use the Generation and Structure
tab pages.
You can change the interface name to Z##_II_CUS-
TOMER_INFO_PROVIDE or change the name of the implementing
class to Z##_CL_CUSTOMER_INFO_PROVIDE, or both, as an
example. In the following exercises, do not forget that you have
changed these names.
f) To activate the proxy objects, choose Activate or, from the menu,
Proxy! Activate.
g) Navigate to the objects you have created by double clicking
them. In particular, navigate to the proxy interface Z##_II_CUS-
TOMER_INFORMATION_PR , to the implementing class
Z##_CL_CUSTOMER_INFORMATION_PR , and from there to
the method Z##_CL_CUSTOMER_INFORMATION_PR~exe-
cute_synchronous.
Note: The method is empty because you have not yet
implemented the functions that will be executed by an inbound
message.
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Unit 2: Generating Proxy Objects BIT450
Lesson Summary
You should now be able to:• Create and generate the corresponding ABAP proxy objects for a message
interface from the Integration Repository
• Understand the generated proxy objects
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BIT450 Lesson: Java Proxy Generation
Lesson: Java Proxy Generation
Lesson Overview
Generation of Java proxy objects in the Integration Repository
Lesson Objectives
After completing this lesson, you will be able to:
• Generate the corresponding Java proxy objects for a message interface from
the Integration Repository
• Understand the functions of the generated proxy objects
Business Example
You are a Java developer and are responsible for generating Java proxy objects.
You want to know the necessary procedure.
Generating Java Proxy Objects
Using the Java proxy generation function, you can generate Java classes or Java
proxy objects from a message interface in the Integration Repository. Using
these objects, you can then implement sender and receiver applications in Java;
the proxy objects establish the connection to the Integration Server using the
Java proxy runtime.You can generate Java proxies for J2EE applications on the SAP Web Application
Server . Proxy generation generates J2EE beans and proxy classes for this purpose.
The generated beans satisfy the EJB 2.0 standard. Java proxy generation is a part
of the Integration Builder with the following functions:
• Generation of an archive (as Jar- or Zip file) starting from one or more
message interfaces of the same software component version. The archive
contains the bean and proxy classes.
• Opening of existing archives for subsequent generation of proxies. Proxy
generation recognizes the original message interfaces for which proxy
objects are contained in the archive.In the Integration Repository, you can call Java proxy generation as follows:
• From the main menu, choose Tools! Java Proxy Generation
• From the context menu, choose Java Proxy Generation... for message
interfaces in the navigation tree.
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Unit 2: Generating Proxy Objects BIT450
In the first step of Java proxy generation, you have to specify an archive (in Jar-
or Zip format). You have two options:
• You can Create a New Archive. With this option, if you select an existing
archive, it is overwritten.
• You can Change an Existing Archive. Choose this option if you want to
regenerate proxy objects. In this case, Java proxy generation recognizes the
message interfaces for which proxies already exist in the archive, so that
these can be regenerated at the same time. You can only regenerate proxy
classes for the entire message interface.
Hint: jar files are Java archives that can deliver multiple classes together
as one package. You can open and unpack these archives in Windows by
using WinZip, for example. You can also use the jar command - which issimilar to tar under Linux:
Hint:
jar -xf <filename> : Extracts a jar filejar -tf <filename> : Displays content of jar file
Figure 31: Integration Builder: Generating Java Proxy Objects
Make sure that you adhere to the file hierarchy when you unpack the archive. The
namespace of the objects becomes the package name of the Java classes and is
reflected in the file system and subfolders that are used by the Java runtime. A
namespace http://bit450.com/xi/java## thus becomes com ! bit450! xi!
java## in the file system. This folder contains the Java classes that belong to
this package.
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BIT450 Lesson: Java Proxy Generation
Figure 32: Namespaces, Packages and Folders
Converting the Message Interface to Java
Compared to ABAP, Java has fewer restrictions regarding names for labels (for
example, for classes or data types). The length of labels in Java is practically
unlimited and they are case-sensitive. The technical names of the generated Java
proxy classes are based on the JAX RPC specification:
• Namespaces are mapped to packages.
• Classes for interfaces have the suffix _PortType.
• Classes for data types have the suffix _Type
The suffixes correspond to the element names from the imported WSDL document
and help to avoid naming collisions. For this reason, naming conflicts are very
unlikely. If a naming conflict occurs, proxy generation terminates and triggers
an error message.
Conversion of Data Types
Predefined XSD data types are mapped to their Java equivalents. For
example, values of the XSD type string are transformed to the Java
classjava.lang.String.
All non-fixed predefined data types are mapped as follows:
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Unit 2: Generating Proxy Objects BIT450
Data Type Conversion Between XSD and Java
XSD Java
<attribute> (local) Attributes of a class (including access
methods)
<complex> (global) Class
<complex> (local) Inner class
<element
maxOccurs="unbounded">
Attributes of an (inner) class
(including access methods)
<element> (local) Attribute of an (inner) class (including
access methods)
The XSL elements <extension>, <element abstract="true"> and<redefine> cannot be converted.
The proxy runtime does not recognize the XSL language elements for restricting
the value range (for example <pattern>) and for defining key relationships
(for example, <keyref>) - these properties should be checked as a part of the
schema validation.
Hint: For more information on the XML schema language elements
supported by Java proxy generation, see the SAP Service Marketplace
(Internet address service.sap.com/xi ! Media Library
! Documentation: SAP XI 3.0 (SP1) – Supported XML Schema and WSDL (EN)).
Java Proxy Objects (Outbound)
For an outbound message interface, a Java class with the ending _PortType
(and additional EJB-relevant classes and interfaces) are created. This
class contains a generated method according to the pattern <Datentypinbound Nachricht> MyInterfaceName (<Datentyp outboundNachricht>). To send a message using the Java proxy runtime, the method
described above must be called on the remote interface of the proxy bean.
Java Proxy Objects (Inbound)
For an inbound message interface, you create a Java interface with the suffix
_PortType (and Java beans, if necessary). This interface contains a method
declaration according to the pattern <Datentyp outbound Nachricht>MyInterfaceName (<Datentyp inbound Nachricht>). To process
the messages sent by the Integration Server , the interface _PortType must be
implemented.
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Unit 2: Generating Proxy Objects BIT450
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BIT450 Lesson: Java Proxy Generation
Exercise 9: Generating Java Proxy Objects
Exercise Objectives
After completing this exercise, you will be able to:
• Generate Java proxy objects for a message interface in the Integration
Repository
• Use the Java development environment Netweaver Developer Studio to
integrate the created objects into a project
Business Example
You want to use proxy runtime to enable communication between a J2EE and the
Integration Server . To use the data types and transfer a message to the IntegrationServer by calling a method, you need the corresponding proxy objects.
Task:
Generate the necessary proxy objects for the outbound message interface
CustomerInformation_Request and integrate them into a project in the SAP
Netweaver Developer Studio.
1. Log on to the Integration Repository.
2. Navigate to the message interface CustomerInformation_Request in the
namespace http://bit450.com/xi/java## of the software component version
SC_BIT450_SALES.
3. Generate the Java proxy objects for the message interface
CustomerInformation_Request in a Java archive with the
name CustomerInfo.zip and save the archive under the path
<WORKSPACE>\temp\CustomerInfo.zip.
Hint: <WORKSPACE> is used here as a variable; your instructor
will inform you which workspace to use, for example “N:\My
Documents\BIT450\”.
4. Unpack the objects from the archive CustomerInfo.zip to the directory<WORKSPACE>\temp\CustomerInfo.
5. Start the SAP NetWeaver Developer Studio and create an EJB module project
called Exc_Sales_EJB.
6. Import the unpacked proxy classes into the EJB module project.
Continued on next page
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Unit 2: Generating Proxy Objects BIT450
7. Use the variable SAP_USER_ADD_LIBS to add the libraries from the
directory <WORKSPACE>\libs\WebAS\ext to the project. To do this, point
the variable to the path <WORKSPACE>\libs\WebAS\ext .
8. Choose the J2EE Explorer tab and view the newly imported classes and
interfaces.
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BIT450 Lesson: Java Proxy Generation
Solution 9: Generating Java Proxy Objects
Task:
Generate the necessary proxy objects for the outbound message interface
CustomerInformation_Request and integrate them into a project in the SAP
Netweaver Developer Studio.
1. Log on to the Integration Repository.
a) Log on to client 800 in the training system.
b) Choose Exchange Infrastructure: Integration Builder ! Start
Integration Builder or call transaction SXMB_IFR. Choose Repository
(Design). The user name and password are the same as those required
to log on to the Integration Server .
2. Navigate to the message interface CustomerInformation_Request in the
namespace http://bit450.com/xi/java## of the software component version
SC_BIT450_SALES.
a) Open the software component version SC_BIT450_SALES, then
your namespace http://bit450.com/xi/java##. Navigate to Interface
Objects! Message Interfaces and go to the message interface
CustomerInformation_Request that you created.
Continued on next page
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Unit 2: Generating Proxy Objects BIT450
3. Generate the Java proxy objects for the message interface
CustomerInformation_Request in a Java archive with the
name CustomerInfo.zip and save the archive under the path<WORKSPACE>\temp\CustomerInfo.zip.
Hint: <WORKSPACE> is used here as a variable; your instructor
will inform you which workspace to use, for example “N:\My
Documents\BIT450\”.
a) To start Java proxy generation, call the context menu for the
message interface name. A new window is opened. First use the
Create icon to enter the name and the path of the Java archive:
<WORKSPACE>\temp\CustomerInfo.zip.
Hint: For the Java archive, the name “CustomerInfo.jar”
would be more suitable, but the “.zip” file ending enables you
to later open the archive within the training environment.
b) Choose Continue. You can skip the next three steps, as these only list
the message interface selected using the context menu.
c) At the end, choose Finish to start the generation and then choose Close
to exit the assistant.
4. Unpack the objects from the archive CustomerInfo.zip to the directory
<WORKSPACE>\temp\CustomerInfo.
a) Start WinZip by double clicking on the file CustomerInfo.zip in the
directory <WORKSPACE>\temp\.
b) Use the option Use Folder Names to extract all files to the directory
<WORKSPACE>\temp\CustomerInfo.
c) The Java files and several folders are created, which correspond to the
namespace of the message interface in the Integration Repository.
Continued on next page
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BIT450 Lesson: Java Proxy Generation
5. Start the SAP NetWeaver Developer Studio and create an EJB module project
called Exc_Sales_EJB.
a) Start the SAP Netweaver Developer Studio by choosing Start !
Programs! BIT450 course ! SAP NetWeaver Delelopment
Studio (BIT450) from the menu. When this batch file is started, the
workspace is set to the directory <WORKSPACE>. This means that the
configuration files are saved in this directory and any properties files
that the Java application works with are expected in this directory.
b) To create a new EJB module project, choose File! New! Project . In
the next screen, choose the project type J2EE and on the right-hand
side, choose EJB Module Project . Name the project Exc_Sales_EJB
and leave the Project Contents option as “use default”. This specifies
that the Java source files for the project are created in the directory
<WORKSPACE>/Exc_Sales_EJB.
6. Import the unpacked proxy classes into the EJB module project.
a) Choose the J2EE Explorer tab to switch to the J2EE view and under
your project Exc_Sales_EJB, select the directory ejbModule.
b) Import the unpacked proxy classes from step 4 using the menu File
! Import... . Choose File System. Now navigate to the directory
<WORKSPACE>\temp\CustomerInfo, select the directory com (on the
left) and the file genInfo.xml (right) and choose Finish.
.
7. Use the variable SAP_USER_ADD_LIBS to add the libraries from the
directory <WORKSPACE>\libs\WebAS\ext to the project. To do this, point
the variable to the path <WORKSPACE>\libs\WebAS\ext .
a) From the menu, choose Project ! Properties, Java Build Path and
then choose the Libraries tab.
b) Click on Add Variable, choose Edit , find the variable
SAP_USER_ADD_LIBS, and choose “Edit” again. Assign the
directory <WORKSPACE>\libs\WebAS\ext to this variable, either
directly by entering it in the field Path, or by using the Folder
pushbutton. Close all windows apart from the last one with the title
“Properties for Exc_Sales_EJB”.
c) Choose Add Variable again, and select the variable
SAP_USER_ADD_LIBS, which is now adjusted to your environment,
directly from the list, and choose Extend.... Now select all Java archives
contained under WebAS–>ext and click on OK (you can use the Ctrl
key to select more than one entry at the same time). Close all windows.
Continued on next page
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Unit 2: Generating Proxy Objects BIT450
8. Choose the J2EE Explorer tab and view the newly imported classes and
interfaces.
a) Switch to the J2EE Explorer view of your project Exc_Sales_EJB and
select the directory ejbModule.
b) All classes imported in exercise step 6 are located in the relative
directory com! bit450! xi! java## , which corresponds to the file
package com.bit450.xi.java##, which is predefined by the namespace
http://bit450.com/xi/java## in the Integration Builder .
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BIT450 Lesson: Java Proxy Generation
Lesson Summary
You should now be able to:• Generate the corresponding Java proxy objects for a message interface from
the Integration Repository
• Understand the functions of the generated proxy objects
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Unit 2: Generating Proxy Objects BIT450
Lesson: Enhancing Interfaces
Lesson Overview
This lesson provides an introduction to the concepts involved in enhancing
message interfaces based on data type enhancements and modifications.
Lesson Objectives
After completing this lesson, you will be able to:
• Enhance message interfaces using data type enhancements without
modifications
• Modify message interfaces
Business Example
Your company uses proxies whose message interfaces also reuse SAP data types.
You need to enhance these interfaces due to new requirements. You are a member
of the development team for SAP Exchange Infrastructure, with responsibility
for explaining the options for enhancing interfaces and implementing the
enhancement.
Interfaces Based on Message Types
Message interfaces can be defined on the basis of message types or externaldefinitions. This lesson covers message interfaces that use message types. If new
interfaces are created in the customer namespace in the Integration Builder , it is
also possible to reuse SAP objects. This section deals with these interfaces.
Relationships Between Software Components
The “based-on” relationships are a prerequisite for the use of objects from
other software component versions. These are represented in the SLD using the
dependencies of a software component version. If a “based-on” relationship is
defined between a customer software component version and an SAP software
component version in the SLD, in the Integration Repository, a subnode “Basis
Objects” is displayed under the node of the customer software component version.This contains the objects of the SAP software component version, which can be
used in the same way as objects of the customer’s own namespace.
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BIT450 Lesson: Enhancing Interfaces
Figure 33: “Based-on” Relationship
Data Type Enhancements for Enhancing Interfaces
Message interfaces can be defined on the basis of message types or external
definitions. If messages refer to message types, they can be enhanced without the
need for modifications. A data type enhancement is then created for the data typethat is referenced in the message type. A data type enhancement is a separate
object, which references the data type that it enhances.
Figure 34: The Object Type Data Type Enhancement
This means that if a message type from a customer namespace uses an SAP data
type, this SAP data type can then be enhanced by a data type enhancement in the
customer namespace.
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BIT450 Lesson: Enhancing Interfaces
Figure 36: Modifying an SAP Object
Confirm this message using the Modify button. You can then modify the SAP
object within the customer software component. If you also use the same SAP
object in other software components, the modification does not affect the other
software components in the repository. The repository then contains differentversions of the same SAP object. However, only one version can be active within
an SAP application system.
Figure 37: Two Versions of an SAP Data Type in the Repository
Subsequent SAP deliveries do not overwrite the modified version of the object in
the repository, instead you are informed that conflict resolution is required.
With the support of a conflict editor, you can then reconcile the new SAP object
with your modified version in an integration step.
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Unit 2: Generating Proxy Objects BIT450
In an SAP application system in which a proxy is implemented using an object
modified in this way, this object then appears twice in the SPROXY : in the original
SAP component and in the customer component.
Figure 38: One Version of an Object at Two Positions in the SPROXY Tree
To regenerate the proxy for the modified status, you need to regenerate themodified object in the customer component. This changes the SAP structure (a
repair order is required!). There is only one version of the SAP structure. All
software component versions that use this SAP data type now use the modified
structure. A modification of this type in the ABAP system will be overwritten
by subsequent SAP deliveries. In contrast to the Integration Repository, the
modification is therefore lost, but can be easily restored by regenerating the
modified data type.
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Unit 2: Generating Proxy Objects BIT450
Solution 10: Checking Proxy
EnhancementsTask:
In this exercise, you will reproduce the enhancements of an interface of a client
proxy that uses SAP data types.
Similar to the proxy used so far for querying customer information, the client
proxy queries address information for customers. Information from the table
SCUSTOM is expected in return.
The data type Address from the namespace http://sap.com/xi/XI/TestCase of the
software component version SAP BASIS 6.40 is reused.
1. Check the enhancement (without modifications) of the message
interface CustomerAddress_Request using the data type enhancement
Webuser2Address of the data type Address within the namespace
http://bit450.com/xi/customer.com of the software component version
SC_BIT450_CUSTOMER.
a) Log on to the Integration Repository: Choose Exchange Infrastructure:
Integration Builder ! Start Integration Builder or transaction
SXMB_IFR. Choose the link Integration Builder : Design. The user
name and password are the same as those required to log on to the
Integration Server .
b) In the object tree, navigate to the data type enhancementWebuser2Address by choosing SC_BIT450_CUSTOMER !
SC_BIT450_CUSTOMER, 1.0 of customer.com!http://bit450.com/xi/customer.com! Interface Objects! Data Type
Enhancements.
Display the data type enhancement.
c) In the object tree, navigate to the data type Address by choosing
SC_BIT450_CUSTOMER ! SC_BIT450_CUSTOMER, 1.0 of
customer.com -> Basis Objects! http://sap.com/xi/XI/TestCase!
Interface Objects! Data Types. Display the data type.
d) Log on to client 821 in your SAP system.
e) In the SPROXY tree, navigate to the data type Address by
choosing SC_BIT450_CUSTOMER, 1.0 of customer.com
! http://sap.com/xi/XI/TestCase! Data Type ! Address.
Display the data type. Navigate to the implementing structure
SXIPERF_PRX_ADDRESS. The data type enhancement is added
using the append structure Z00_WEBUSER2ADDRESS.
Continued on next page
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BIT450 Lesson: Enhancing Interfaces
2. Check the enhancement of the message interface CustomerAddress_Re-
quest using the modification of the data type Address within the SAP
namespace http://sap.com/xi/XI/TestCase of the software component versionSC_BIT450_CUSTOMER.
a) Log on to the Integration Repository: Choose Exchange Infrastructure:
Integration Builder ! Start Integration Builder, or transaction
SXMB_IFR. Choose the link Integration Builder : Design. The user
name and password are the same as those required to log on to the
Integration Server .
b) In the object tree, navigate to the modified data type Address by
choosing SC_BIT450_CUSTOMER ! SC_BIT450_CUSTOMER, 1.0
of customer.com! Basis Objects! http://sap.com/xi/XI/TestCase!Interface Objects! Data Types. Display the modified data type.
c) In the object tree, navigate to the original data type Address by choosing
SAP BASIS! SAP BASIS 6.40 -> http://sap.com/xi/XI/TestCase!Interface Objects! Data Types.
Display the original data type.
d) Log on to client 821 in your SAP system.
e) In the SPROXY tree, navigate to the data type Address by
choosing SC_BIT450_CUSTOMER, 1.0 of customer.com
! http://sap.com/xi/XI/TestCase! Data Type ! Address.
Display the data type. Navigate to the implementing structure
SXIPERF_PRX_ADDRESS. The data type modification is insertedas the field CUST_TYPE.
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Unit 2: Generating Proxy Objects BIT450
Lesson Summary
You should now be able to:• Enhance message interfaces using data type enhancements without
modifications
• Modify message interfaces
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Unit Summary BIT450
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BIT450 Test Your Knowledge
Test Your Knowledge
1. In what form are the message formats of the message interfaces called from
the Integration Repository for the generation of proxy objects?
Choose the correct answer(s).
! A As HTML files.
! B As WSDL files.
! C As flat files.
! D They have to be copied manually.
2. If the message interface information in the Integration Builder is changed,
how does this information get to the system where the message interface
was used to generate proxy objects?
3. Which tool is used to generate the necessary Java proxy objects?
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Test Your Knowledge BIT450
Answers
1. In what form are the message formats of the message interfaces called from
the Integration Repository for the generation of proxy objects?
Answer: B
Web Service Description Language (WSDL) is used as the Internet standard.
2. If the message interface information in the Integration Builder is changed,
how does this information get to the system where the message interface
was used to generate proxy objects?
Answer: You have to regenerate the proxy objects. In the inbound case, thesource text of the implementing method is not overwritten, but you may
have to adjust it.
3. Which tool is used to generate the necessary Java proxy objects?
Answer: In Java programming, the proxy objects are generated directly in
the Integration Repository (where the message interfaces were created) and
saved in the file system as a Java archive.
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Unit 3 Using Generated Proxy Objects
Unit Overview
You have already generated the necessary proxy objects. In this unit these objects
will be used to send messages to the Integration Server (outbound using a client
proxy) and process messages from the Integration Server (inbound using a server proxy).
Unit Objectives
After completing this unit, you will be able to:
• Implement a generated server proxy method in ABAP
• Use a generated client proxy method in Java to generate a message and send
it to the Integration Server
• Configure the integration scenario in the Integration Directory
• implement and configure a previously generated Java server proxy for
generating and sending a message to the Integration Server .
• Use a generated client proxy method in ABAP to send a message to XI
• Describe how to use server proxies as a Web service
• Describe any inbound interface as a Web service
Unit Contents
Lesson: ABAP Server Proxy Implementation .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 110
Exercise 11: Implementing an ABAP Server Proxy Method .......... 117
Lesson: Using Java Client Proxies ... ... .. .. ... .. .. ... .. ... ... .. .. ... ... .. ... 122Exercise 12: Using Java Client Proxy Methods ........................129
Lesson: Configuration in the Integration Directory . .. .. .. .. .. .. .. .. .. .. .. .. 138Exercise 13: Configuration in the Integration Directory ............... 141
Lesson: Java Server Proxy Implementation... .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..147
Lesson: Using ABAP Client Proxies... ... .. ... ... .. ... .. ... ... .. .. ... .. ... ... 151Exercise 14: Generating ABAP Client Proxy Objects .................157
Lesson: Server Proxies, Web Services, and WSDL .......................161
Exercise 15: Checking a Web Service for a Server Proxy .. . .. . . . . .. .169
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Unit 3: Using Generated Proxy Objects BIT450
Lesson: ABAP Server Proxy Implementation
Lesson Overview
Introduction to the technology and main steps involved in server proxy
implementation.
Lesson Objectives
After completing this lesson, you will be able to:
• Implement a generated server proxy method in ABAP
Business Example
You are an ABAP developer and have generated ABAP proxy objects. You now
want to implement the inbound method.
Signature of Method to Be Implemented
Before discussing the implementation of the method execute_ synchronous, it is
useful to take another look at the method signature. An ABAP object interface
and method have been generated from the message interface in the Integration
Repository (including its outbound, inbound, and fault message types). This
method has a signature that corresponds to these message types.
When the message type names are mapped to the ABAP data structures, theUpperCamelCase method is employed, which means that each upper case letter in
the message type name is assigned an underscore in the ABAP structure name (for
example, UpperCamelCase -> UPPER_CAMEL_CASE).
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BIT450 Lesson: ABAP Server Proxy Implementation
Figure 39: Signature of Method to Be Implemented
The object called CONTROLLER , which is displayed in the previous graphic,
is added to every structure in the method signature as a data structure. The
CONTROLLER object is a control table of type PRXCTRLTAB, containing
information on whether or how the initial fields will appear in the message. In the
standard procedure for inbound interfaces, if any tags are missing or empty, the
default value is set before the application is called.
Extended XML Handling
In ABAP, if an interface parameter is initial, you do not know whether the
parameter was not assigned a value at all, or an initial value was transferred. In
addition, the XSD standard specifies the procedure for default values. For proxy
generation, the following standard procedure exists for server proxies:
If element tags are empty or attribute tags are missing, inbound processing on
the server side of the ABAP proxy runtime sets the default value before the
application is called. If elements have an attribute nil = "true" or the element
tag is absent altogether, the corresponding parameter is left initial. Optional,
initial, scalable elements without a default value are suppressed in the message to
improve performance. You can override this standard procedure.
Regardless of whether or not you set the parameter EXTENDED_XML_HAN-
DLING for the sender, at the receiver, you can set the ABAP proxy runtime
to complete the control tables for fields. To do this, call the method
SET_EXTENDED_XML_HANDLING of the payload protocol, and set the
parameter EXTENDED_XML_HANDLING (to ’X’). When parsing messages
to this proxy, the ABAP proxy runtime then determines whether the field was
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Unit 3: Using Generated Proxy Objects BIT450
transferred in the message, whether the field contained an initial value, or whether
it had no value at all. The proxy runtime correspondingly completes a control
table that can be evaluated by the application.
DATA:
lo_context TYPE REF TO if_ws_server_context,
lo_payload_protocol TYPE REF TO if_wsprotocol_payload.
lo_context = cl_proxy_access=>get_server_context( ).
lo_payload_protocol
?= lo_context->get_protocol( if_wsprotocol=>payload ).
lo_payload_protocol->set_extended_xml_handling( ’X’ ).
Hint: You can use the method GET_EXTENDED_XML_HANDLING to
check whether you have activated the extended XML handling.
Possible values for the VALUE field of the CONTROLLER table
Value Meaning
sai_ctrl_initial Initial value was sent for the field.
sai_ctrl_nil The value xsi:nil was sent in the message for this field.
sai_ctrl_none The field was not part of the message.
Implementation (Synchronous)
Once the server proxy has been generated, you implement the application
functions.
To do so, you have to perform the following steps:
• Transfer the message information from the interface to local variables
• Check the authorization, if necessary (and create error message, if necessary)
• Check that the information is correct and complete
• Process the information (and create error message, if necessary)
• Provide the interface with the message response (in synchronous case)
These steps are the same as those for the implementation of other functions, for
example a function module. The only difference is that the function interface is
saved centrally in the Integration Repository at design time and cannot be changed
locally during implementation. If the interface must be changed, you have to
change the message interface in the Integration Repository and regenerate the
proxy objects.
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BIT450 Lesson: ABAP Server Proxy Implementation
Figure 40: Implementing the Synchronous Inbound Method
The parameters INPUT and OUTPUT are available for the first and last step.
Hint: If you change the message interface in the Integration Repository
after the proxy objects have been generated, you can regenerate the proxy
objects without overwriting the coding of the implementing method.
Usually, you then have to adjust the coding to the changed interface.
Figure 41: Structure of Error Messages
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Unit 3: Using Generated Proxy Objects BIT450
If an error occurs when the inbound message is being checked, you can generate
an exception by using the error class. You enter detailed information by using
the table faultDetail.
Hint: The structure of the standard error message corresponds to the
data type ExchangeFaultData, which is automatically created in each
namespace and automatically referenced in each fault message type
(under standard data).
You can also use the same error class if an error occurs during information
processing, for example, if no data is found for the inbound information. A better
solution, however, is to save another fault message type for the message interface
in the Integration Repository.
Of course, application error messages are only sent back to the sender in the
case of synchronous messages. In the case of asynchronous messages the error
messages are persisted, that is, kept for later analysis.
Setting and Triggering Application Errors
DATA: l_fault type <Fault-Message-Type>,
l_detail type <Fault-Message-Type>.
l_fault-fault_text = <...>.
l_fault-fault_url = <...>.
l_detail-severity = <...>.
l_detail-text = <...>.
l_detail-id = <...>.
l_detail-url = <...>.
append l_detail to l_fault-fault_detail.
RAISE EXCEPTION TYPE <Name of exception class>
EXPORTING
FAULT_DATA = l_fault.
The triggered error is sent to the Integration Server and then to the sender by
means of the proxy runtime.
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BIT450 Lesson: ABAP Server Proxy Implementation
Figure 42: Example of Error Message Using Proxy Runtime
Implementation (Asynchronous)
In the asynchronous case, the data is not returned to the OUTPUT structure, since
a business message is not sent back to the sender.
Error Analysis for Server Proxy
By using the ICF Server Recorder in transaction SICF, it is possible to record the
incoming request and the corresponding response for access to HTTP services,
including for the service /sap/xi/engine, which represents the inbox of the XI
pipeline. The menu option Edit ! Recorder in transaction SICF enables you to
access the ICF Server Recorder . Three selection options are available:
• Activate recording
• Deactivate recording
• Display recording
Activate recording: First select the service that you want to record. Choose
/sap/xi/engine, followed by the menu path Edit ! Recorder ! Activate
Recording . When you activate a recording, you can enter user names to restrict
the recording to the required users. Under URL path, enter the request path to be
recorded by the ICF Recorder (the default setting is the service that you most
recently selected). Here you can also set the recording time and lifetime (retention
period for monitoring data in the database). By default, only the requests are
recorded. If you also want to record the response, under Recording Level , select
the option Request + Response.
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Unit 3: Using Generated Proxy Objects BIT450
Deactivate Recording: After recording, you should always deactivate the ICF
Server Recorder to prevent performance problems. To do this, choose the menu
path Edit ! Recorder ! Deactivate Recording . On the following screen, youthen need to select the user and then click on Deactivate.
Display Recording: To display the recorded ICF communication data, choose
the menu path Edit ! Recorder ! Display Recording . As for the recording, you
can also choose restriction criteria here.
Hint: Note that although you can record other users’ ICF communication
data, you require special authorization to be able to view this data. To
edit the recorded data, you must have authorization for the transaction
SICFRECORDER . If you have the required authorizations, you
can process the recorded communication data. Without additionalauthorization, you can only edit your own entries. Authorization object:
S_ICFREC
Debugging the Server Proxy
If you have activated HTTP debugging for the user that will be used to access the
server proxy, you can also debug the server proxy.
• Log on as the user with which the server proxy will be accessed at runtime
• Navigate to the proxy method that you want to debug and choose Utilities /
Settings
• Navigate to the ABAP Editor tab page and from there to the debuggingtab page, and activate external debugging for the user that will access the
server proxy
• Choose Utilities! Breakpoints! Set/Delete, and in the following window,
choose External Debugging
Hint: An external call is not usually made using the dialog user. For
debugging, you may have to change the user for the call.
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BIT450 Lesson: ABAP Server Proxy Implementation
Exercise 11: Implementing an ABAP
Server Proxy MethodExercise Objectives
After completing this exercise, you will be able to:
• Implement an inbound proxy method in ABAP to process a message
received by the Integration Server
Business Example
You have already generated the proxy objects for an inbound message interface
and are now responsible for implementing the functions in ABAP.
Task:
Implement the method execute_synchronous of your implementing class
Z##_CL_CUSTOMER_INFORMATION_PR in the business system
SAP_BACKEND.
1. Log on to the business system SAP_BACKEND and navigate to the proxy
class Z##_CL_CUSTOMER_INFORMATION_PR that you have already
created.
2. Implement the method with an initial completeness check for the inbound
data. If errors occur, you want this to trigger an exception with explanatorytext. Otherwise, the method for the customer name searches for a hit in
the table SCUSTOM. If it finds an entry, it returns it using the OUTPUT
parameter. If not, it triggers an exception.
Do not forget to activate your changes.
Hint: For help with the solution, you can copy the example solution
ABAP_inbound.txt by uploading it to your ABAP coding. The
instructor can show you how to do this.
3. Test your method in the transaction SPROXY.
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Unit 3: Using Generated Proxy Objects BIT450
Solution 11: Implementing an ABAP
Server Proxy MethodTask:
Implement the method execute_synchronous of your implementing class
Z##_CL_CUSTOMER_INFORMATION_PR in the business system
SAP_BACKEND.
1. Log on to the business system SAP_BACKEND and navigate to the proxy
class Z##_CL_CUSTOMER_INFORMATION_PR that you have already
created.
a) Log on to client 8xx in your SAP system. Use the logon parameters
provided by the instructor.
b) Call transaction SPROXY.
c) Select the software component version SC_BIT450_CIS in the
namespace http://bit450.com/xi/abap##. Navigate to the Message
Interface (inbound) node and then to the message interface
CustomerInformation_Provide.
d) To display the generated objects, double click the message interface
name CustomerInformation_Provide.
e) To navigate to the editor, double click on the name of your
implementing class Z##_CL_CUSTOMER_INFORMATION_PR and then double click on the name of the method execute_synchronous.
Hint: If you know the name of your class, you can enter it
directly in the Class Builder (transaction SE24). This is a
quicker way to get to the method editor.
2. Implement the method with an initial completeness check for the inbound
data. If errors occur, you want this to trigger an exception with explanatory
text. Otherwise, the method for the customer name searches for a hit in
the table SCUSTOM. If it finds an entry, it returns it using the OUTPUT
parameter. If not, it triggers an exception.
Do not forget to activate your changes.
Hint: For help with the solution, you can copy the example solution
ABAP_inbound.txt by uploading it to your ABAP coding. The
instructor can show you how to do this.
Continued on next page
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BIT450 Lesson: ABAP Server Proxy Implementation
a) First declare the data structures:
* Data structure to get data of input message
Data: l_customer_name type Z##_customer_name.
* Data structure to get data of output messagedata: l_customer_info type Z##_customer_info.
* Data types generated* from fault message ’MissingInformation’:
data: l_standard_data type Z##_EXCHANGE_FAULT_DATA,l_detail_data type Z##_EXCHANGE_LOG_DATA.
* Structure to hold data selected from database:DATA: l_scustom type scustom.
b) Receive the INPUT parameters in local parameters.
l_customer_name = input-MT_NAME.
c) Check whether the customer name is initial. If it is, trigger an exception:
if l_customer_name is initial.l_standard_data-fault_text = ’No name was supplied’....RAISE Exception TYPE Z##_CX_MISSING_INFORMATION
exporting standard = l_standard_data.endif.
d) Read whether an entry exists for the name in the database table
SCUSTOM:
select single * from scustominto corresponding fields of l_scustom
where name = l_customer_name.
e) Check whether an entry is found. If not, trigger an exception and use a
corresponding error text:
if l_scustom is initial.l_standard_data-fault_text = ’No customer found’....
RAISE Exception TYPE Z##_CX_MISSING_INFORMATIONexporting standard = l_standard_data.endif.
f) If an entry is found, enter the results in the OUTPUT parameter
CUSTOMER_INFO:
move-corresponding l_scustom to l_customer_info.output-mt_customer_info = l_customer_info.
Continued on next page
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BIT450 Lesson: ABAP Server Proxy Implementation
Lesson Summary
You should now be able to:• Implement a generated server proxy method in ABAP
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Unit 3: Using Generated Proxy Objects BIT450
Lesson: Using Java Client Proxies
Lesson Overview
This lesson introduces the generated Java proxy objects and explains how to use
them.
Lesson Objectives
After completing this lesson, you will be able to:
• Use a generated client proxy method in Java to generate a message and send
it to the Integration Server
Business Example
You are a member of an integration project team and are responsible for
programming outbound processing using generated Java proxy objects, and
therefore need to develop the Java application.
Using Generated Proxy Objects
Once you have generated the Java proxy objects in the Integration Repository,
you can use them in your own application. As well as the generated class and
its method, it is also important to know the data types, data structures, and
possible exceptions. You can use a standard Java IDE (Integrated Development
Environment) such as the SAP NetWeaver Developer Studio to represent this. You
can also use javadoc to generate HTML documentation for the generated Java
proxy classes: javadoc -d <destination directory>. For example: javadoc *.java
-d <workspace>\doc\ (if the “doc” directory has already been created).
The process for an outgoing message is illustrated in the following diagram.
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BIT450 Lesson: Using Java Client Proxies
Figure 43: Outbound Java Scenario
You have to perform the following steps in your own application:
• Generate the proxy bean
• Declare the required objects
• Compile the information to be sent
• Call the client proxy method• Catch any exceptions
• Receive the response message (in the synchronous case)
In XI 2.0, it was possible to generate and send synchronous Java outbound proxies
using a J2SE application. In XI 3.0, all Java proxy applications are Enterprise Java
Beans and therefore represent a J2EE application. This also changes the calling
behavior of the client application. Proceed as follows:
• Create the JNDI context
• Locate the home interface of the proxy bean
• Generate the remote interface
Unlike the ABAP proxy method, the classes, interfaces and the method in the
Java outbound scenario each have a name that is generated from the message
interface name. The classes and interfaces are assigned the suffix _PortType
and an ending that identifies their purpose. The method retains its name, but
begins with a lower-case letter and does not contain any underscores. For an
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Unit 3: Using Generated Proxy Objects BIT450
existing message interface CustomerInformation_Request, this means that a
method customerInformationRequest is generated, along with the following
classes and interfaces:
• CustomerInformationRequest_PortType - Proxy class
• CustomerInformationRequest_PortTypeHome - Home interface
• CustomerInformationRequest_PortTypeRemote - Remote interface
• CustomerInformationRequest_PortTypeBean - Implementation
A client proxy bean can be called by a variety of applications such as servlets,
JSPs, applets, or even J2SE applications. The example coding illustrates the
required steps.
Generating and Calling a Proxy Bean
// Generating the initial JNDI context
Context ctx = new InitialContext();
// Using the JDNI name to locate the home interface
Object obj = ctx.lookup("bit450.com/sales/CustomerInformationXX");
// Casting the Home Interface
CustomerInformationRequest_PortTypeHome homeInterface =
(CustomerInformationRequest_PortTypeHome) obj;
// Using the home interface to create the remote interfaceCustomerInformationRequest_PortTypeRemote remoteInterface =
homeInterface.create();
// Generating the query object
PersonName_Type person = new PersonName_Type();
// ...Filling the query object person
// Calling the proxy method to create and send the message
CustomerInfo_Type custInfo = remoteInterface.customerInformationRequest(person);
Hint: The names of the objects homeInteface, remoteInteface,
personand custInfo are selected arbitrarily.
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BIT450 Lesson: Using Java Client Proxies
For complex data types, you use the setter methods of the generated classes to set
the parameters of the outbound message.
Hint: In Java, methods that are used to change (set) or call (get) object
attributes (properties) are called setter/getter methods.
A class called PersonName_Type is created for a complex data type PersonName
stored in the Integration Repository. This class has the fields of the complex data
type as attributes (surname and name) and provides setter and getter methods:
setSurname() for setting the surname.
Using the above coding example, you could set the complex data type PersonName
as follows:
Setting the Complex Data Type
PersonName_Type person = new PersonName_Type();
person.setName("SAP");
person.setSurname("AG");
The same applies to receiving the response message in a synchronous scenario. In
this case the getter methods would be used. Example:
Accessing the Attributes of the ResponseMessage
// Call proxy method
CustomerInfo_Type custInfo = remoteInterface.customerInformationRequest(person);
// Reading the attributes
String ID = custInfo.getID().toString();
String city = custInfo.getCITY();
In addition to the exceptions stored in the message interface, you must also
catch any system exceptions that occur, for example, if the Integration Server
cannot find a receiver due to configuration errors. The exception class
(com.sap.aii.proxy.xiruntime.core)ApplicationFaultException is available in
Java for this purpose. You can also use the superordinate class of all application
classes (com.sap.aii.proxy.xiruntime.core)SystemFaultException to catch
any application exceptions. In the asynchronous case, the application errors are
persisted (saved) in the target system.
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Unit 3: Using Generated Proxy Objects BIT450
Catching Exceptions
try {
custInfo = custInfoReq.customerInformationRequest(person);
} catch (MissingInformation_Message_Exception e) {
errorType = "Missing Information";
errorText = e.getMessage();
error = true;
} catch (SystemFaultException e) {
errorType = "System Fault Exception occurred";
errorText = e.getMessage();
error = true;
} catch (ApplicationFaultException e) {
errorType = "Application Fault Exception occurred";errorText = e.getMessage();
error = true;
} catch (Exception e) {
errorType = "Other occurred";
errorText = e.getMessage();
error = true;
}
The additional parameter MessageSpecifier enables you to use further proxy
runtime services, for example, adding an additional attachment to the message.
MessageSpecifier: Additional Attachment
try {
custInfo = custInfoReq.customerInformationRequest(person);
// Sends an additional document (addData is Object Date type)
custInfo.$messageSpecifierRead().createAttachment("AddData", "text/html", addData)
}
You can also use the MessageSpecifier object to set the logical receiver system,
for example. However, note that this procedure does not comply with the centralinformation collection concept in SAP Exchange Infrastructure. Technical
changes in particular must then be configured locally. On the other hand, functions
such as saving the message after it has been sent successfully are not critical.
Default and Initial Values: In the Java outbound case, the default value is set for
all initial fields when the XML data stream is generated. Optional, initial, scalable
elements without a default value are suppressed in the message to improve
performance. The zero pointer in Java is converted to xsd:nil.
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BIT450 Lesson: Using Java Client Proxies
Deployment of Java Proxies
You must ensure that the proxy beans and proxy classes generated by Java proxy
generation are deployed together with the application program. To do this, include
them in the same EAR file as the classes of your application. The generated
classes depend on the classes of the Java proxy runtime, which must be installed
on the J2EE server. To declare this dependency for EJB applications, copy the
following packages into the descriptor file application-j2ee-engine.xml:
• com.sap.aii.proxy.xiruntime
• com.sap.aii.af.sdk.xi
• com.sap.xi.util.misc
• com.sap.guid
All library dependencies are of the type weak and have the provider namesap.com.
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Unit 3: Using Generated Proxy Objects BIT450
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BIT450 Lesson: Using Java Client Proxies
Exercise 12: Using Java Client Proxy
MethodsExercise Objectives
After completing this exercise, you will be able to:
• Use generated proxy objects for an outbound message interface to send a
message to the Integration Server
Business Example
You are responsible for a scenario in which a JSP application calls information
from a back end using the Integration Server . You are also responsible for
implementing the proxy method call.
Task:
Create a J2EE application that sends a message to the Integration Server by
calling the client proxy method.
1. In the SAP NetWeaver Developer Studio, in the project Exc_Sales_EJB,
open the subfolder EJB Candidates. In this subfolder, add the candidate
CustomerInformationRequest_PortTypeBean to ejb-jar.xml.
2. Open the vendor-specific deployment descriptor (ejb-j2ee-engine.xml)
and assign the EJB that you have just created the JNDI namebit450.com/sales/CustomerInformation##
Hint: The JNDI name is used to find and reference a software
component in the J2EE server.
3. Create the EJB archive for your EJB project.
4. Open the Web project Exc_Sales_Web in the Project Navigator view and
navigate to the class com.bit450.sales.CustomerInformationCheck .
5. Implement the method checkCustomerInfo in the class
com.bit450.sales.CustomerInformationCheck so that the bean class of theJNDI context is used, the required data types are declared and filled, the
message is sent, and the result is received.
To do this, adjust the variable JNDI_NAME and the import statements to
include your group number. The transfer parameters surName and nameshould be used to fill the class PersonName_Type with values. Assign
the return value to the variable cisResult. If an error occurs, enter the
relevant values in the fields errorType, errorText and error.
Continued on next page
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Unit 3: Using Generated Proxy Objects BIT450
If the is successful, the return structure CustomerInfo is issued in a JSP
(customerinformationresult.jsp), if an error occurs, the corresponding
error message is displayed. The complete presentation logic is alreadyimplemented in the form of JSPs and can be copied.
Hint: To view the example solution, see the class
com.bit450.sales.CustomerInformationCheck in the project
Sol_Sales_Web.
6. Create the Web archive for your Web project.
7. Optional: Enter your group number in the header line of your JSP.
8. Create a new Enterprise Application Project with the name
Exc_Sales_EAR_##. Assign the two projects Exc_Sales_EJB andExc_Sales_Web to this.
9. Change the context /sales## for your Web application in the file
application.xml ( Modules tab) to include your group number.
10. The proxy beans and proxy classes that you have generated are dependent on
the Java proxy framework, which must be installed on the J2EE server. To
declare this dependency for EJB applications, copy the following packages
to the descriptor file application-j2ee-engine.xml:
com.sap.aii.proxy.xiruntimecom.sap.aii.af.sdk.xi
com.sap.xi.util.misccom.sap.guidAll library dependencies are of the type weak and have the provider name
sap.com.
11. In the SAP NetWeaver Developer Studio, store the parameters for the SAP
J2EE Engine provided by the instructor.
12. Create the Enterprise Application Archive for your EAR project and
deploy your EAR in the J2EE server.
13. Start your application using the URL http://<host>:< port>/sales## and send
a query to check whether the message has arrived on the Integration Server .
14. Check the inbound message in the monitor on the Integration Server .
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BIT450 Lesson: Using Java Client Proxies
Solution 12: Using Java Client Proxy
MethodsTask:
Create a J2EE application that sends a message to the Integration Server by
calling the client proxy method.
1. In the SAP NetWeaver Developer Studio, in the project Exc_Sales_EJB,
open the subfolder EJB Candidates. In this subfolder, add the candidate
CustomerInformationRequest_PortTypeBean to ejb-jar.xml.
a) Start the SAP NetWeaver Developer Studio (or switch to the NWDS
if it is already open). In the EJB Explorer , select the project
Exc_Sales_EJB and open the subfolder EJB Candidates.
b) In the context menu, choose Add to ejb-jar.xml for the EJB candidate
CustomerInformationRequest_PortTypeBean.
2. Open the vendor-specific deployment descriptor (ejb-j2ee-engine.xml)
and assign the EJB that you have just created the JNDI name
bit450.com/sales/CustomerInformation##
Hint: The JNDI name is used to find and reference a software
component in the J2EE server.
a) Double click to open the file ejb-j2ee-engine.xml.
b) Click on the tab Enterprise Beans and open the subfolder Session
Beans. The EJB CustomerInformationRequest_PortTypeBean that
you have just created is displayed. Click on your EJB to select it. A list
of input fields is displayed on the right-hand side.
c) In the field JNDI name, enter your group-specific JNDI name
(bit450.com/sales/CustomerInformation##).
d) Save your setting, for example, with CTRL+S.
3. Create the EJB archive for your EJB project.
a) Switch to the J2EE Explorer view (on the left).
b) Open the context menu for the root element (Project) Exc_Sales_EJB.
Select the menu option Build EJB Archive.
c) You receive a confirmation message, and the entry Exc_Sales_EJB.jar
is displayed in Exc_Sales_EJB.
Continued on next page
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Unit 3: Using Generated Proxy Objects BIT450
4. Open the Web project Exc_Sales_Web in the Project Navigator view and
navigate to the class com.bit450.sales.CustomerInformationCheck .
a) To the left of the J2EE Explorer view, switch to the Navigator view.
b) Select the project Exc_Sales_Web and in the context menu, choose
Project ! Open Project .
c) Now return to the J2EE Explorer view. The project Exc_Sales_Web is
displayed.
d) In the project Exc_Sales_Web, open the path source /
com / bit450 / sales and double click to open the class
com.bit450.sales.CustomerInformationCheck .
5. Implement the method checkCustomerInfo in the class
com.bit450.sales.CustomerInformationCheck so that the bean class of theJNDI context is used, the required data types are declared and filled, the
message is sent, and the result is received.
To do this, adjust the variable JNDI_NAME and the import statements to
include your group number. The transfer parameters surName and nameshould be used to fill the class PersonName_Type with values. Assign
the return value to the variable cisResult. If an error occurs, enter the
relevant values in the fields errorType, errorText and error.
If the is successful, the return structure CustomerInfo is issued in a JSP
(customerinformationresult.jsp), if an error occurs, the corresponding
error message is displayed. The complete presentation logic is already
implemented in the form of JSPs and can be copied.
Hint: To view the example solution, see the class
com.bit450.sales.CustomerInformationCheck in the project
Sol_Sales_Web.
a) In the Import statement and in the declaration of the string
JNDI_NAME, change the placeholder ## to your group number.
Hint: In the SAP NetWeaver Developer Studio, you can use theTasks tab at the bottom to produce a list of TODOs. You can
double click to navigate to the positions that must be edited.
b) The following points refer to the method checkCustomerInfo:
Get the home interface from the JNDI context, and use it to generate
the remote interface:
Context ctx = new InitialContext();
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BIT450 Lesson: Using Java Client Proxies
CustomerInformationRequest_PortTypeHome cisHome =(CustomerInformationRequest_PortTypeHome)
ctx.lookup(JNDI_NAME);CustomerInformationRequest_PortTypeRemote
cisRemote = cisHome.create();
c) Declare the required data structure and fill it:
PersonName_Type requestType = new PersonName_Type();requestType.setName(name);requestType.setSurname(surName);
d) Call the method customerInformationRequest on the remote
interface and assign the result of the variable cisResult to:
cisResult =cisRemote.customerInformationRequest(requestType);
e) Catch any exceptions that occur in the application:
} catch (RemoteException e) {errorType = "Remote exception occurred";errorText = e.getMessage();error = true;
} catch (NamingException e) {errorType = "Naming exception occurred";
errorText = e.getMessage();error = true;} catch (CreateException e) {
errorType = "Creation exception occurred";errorText = e.getMessage();error = true;
} catch (MissingInformation_Message_Exception e) {errorType = "Missing Information";errorText = e.getMessage();error = true;
} catch (SystemFaultException e) {errorType = "System Fault Exception occurred";
errorText = e.getMessage();error = true;
} catch (ApplicationFaultException e) {errorType = "Application Fault Exception occurred";errorText = e.getMessage();error = true;
} catch (Exception e) {errorType = "System Exception occurred";errorText = e.getMessage();
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Unit 3: Using Generated Proxy Objects BIT450
error = true;}
6. Create the Web archive for your Web project.
a) If necessary, switch to the J2EE Explorer view.
b) Use the context menu Build WEB Archive for the project
Exc_Sales_Web.
c) After you have successfully generated the Web archive (WAR), a
success message is displayed.
7. Optional: Enter your group number in the header line of your JSP.
a) In the project Exc_Sales_Web, double click to open the file WebContent
/ headerline.html .
b) In the HTML page display, choose the Source tab.
c) Navigate to the middle and change the string “BIT450-## JSP Client”
to your group number.
d) Save the file headerline.html. You can then close the file.
8. Create a new Enterprise Application Project with the name
Exc_Sales_EAR_##. Assign the two projects Exc_Sales_EJB and
Exc_Sales_Web to this.
a) Choose File! New! Enterprise Application Project .
b) Assign the name Exc_Sales_EAR_## and click on Next .
c) In the next window, select your projects Exc_Sales_EJB and
Exc_Sales_Web, and choose Finish.
d) In the J2EE Explorer , a new project Exc_Sales_EAR_## is listed,
which contains the subnodes application-j2ee-engine.xml and
application.xml.
9. Change the context /sales## for your Web application in the file
application.xml ( Modules tab) to include your group number.
a) In the project Exc_Sales_EAR_##, double click to open the fileapplication.xml.
b) On the Modules tab, select your Web Application Exc_Sales_Web.war.
c) In the Context Root field, enter the context /sales##.
d) Save the file. You can now also close the file if required.
Continued on next page
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BIT450 Lesson: Using Java Client Proxies
10. The proxy beans and proxy classes that you have generated are dependent on
the Java proxy framework, which must be installed on the J2EE server. To
declare this dependency for EJB applications, copy the following packagesto the descriptor file application-j2ee-engine.xml:
com.sap.aii.proxy.xiruntimecom.sap.aii.af.sdk.xicom.sap.xi.util.misccom.sap.guidAll library dependencies are of the type weak and have the provider name
sap.com.
a) In your project Exc_Sales_EAR_##, double click to open the file
application-j2ee-engine.xml.
Perform the following steps for all four of the packages listed above:
b) Select the entry references.
c) Use the Add button to define a new reference.
d) In the next window, choose Create New. In the definition, for Reference
Target , set the corresponding package from the above list, Reference
type is weak , Reference target type is library, and the Provider name is
sap.com. (To reference the next package, select the entry references.)
e) When you have referenced all four packages, save the file
application-j2ee-engine.xml. You can now also close the file if
required.
11. In the SAP NetWeaver Developer Studio, store the parameters for the SAP
J2EE Engine provided by the instructor.
a) Navigate to the menu Windows! Preferences.
b) In the Preferences window, select the entry SAP J2EE Engine on the
left, and on the right, choose SAP J2EE engine is installed on remote
host .
c) In the fields Message Server Host and Message Server Port , enter the
values supplied by the instructor.
d) Exit maintenance by choosing Apply and OK .
e) Optionally, you can select the tab J2EE Engine on the bottom
right-hand side to view the status of the J2EE Engine.
Continued on next page
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Unit 3: Using Generated Proxy Objects BIT450
12. Create the Enterprise Application Archive for your EAR project and
deploy your EAR in the J2EE server.
a) If necessary, switch to the J2EE Explorer view.
b) In the context menu for the project Exc_Sales_EAR_##, choose Build
Application Archive.
c) A success message is displayed and the file Exc_Sales_EAR.ear is
listed in the project Exc_Sales_EAR_##.
d) Now use the context menu for the file Exc_Sales_EAR.ear and choose
Deploy to J2EE engine. Enter the password supplied by the instructor.
In the Deploy Output View, you can display the log outputs and error
messages of the deployment process. The last message should be
“Finished Deployment”.
13. Start your application using the URL http://<host>:< port>/sales## and send
a query to check whether the message has arrived on the Integration Server .
a) Open a browser and enter the URL http://<host>:< port>/sales##.
b) Use the test data Name = SAP and Surname = AG and send the
query.
c) You get an error message indicating that the configuration is missing
in the Integration Directory (“no receiver”).
14. Check the inbound message in the monitor on the Integration Server .
a) Log on to the Integration Server (client 800). Call transactionSXMB_MONI and start the monitor for processed XML messages.
On the selection screen, enter WEBAS_JAVA in the Sender Business
System field, and choose Execute to start the monitor.
b) Navigate to the detail view of your message and check the message
structure by choosing Inbound Message! Payloads! Main
Document .
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BIT450 Lesson: Using Java Client Proxies
Lesson Summary
You should now be able to:• Use a generated client proxy method in Java to generate a message and send
it to the Integration Server
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Unit 3: Using Generated Proxy Objects BIT450
Lesson: Configuration in the Integration Directory
Lesson Overview
In this lesson, the necessary configuration settings for the integration scenario are
made in the Integration Directory, so that the Java standalone application receives
a response from the ABAP proxy object.
Lesson Objectives
After completing this lesson, you will be able to:
• Configure the integration scenario in the Integration Directory
Business Example
You are a member of a project team. Once the proxy objects have been used, you
are responsible for making the configuration settings in the Integration Directory.
Receiver Determination
First, you have to create an integration scenario in the Integration Directory,
which will contain the configuration settings. In XI 2.0, this integration scenario is
not related to the integration scenarios in the Integration Repository. To create
a receiver determination, you have to specify the following sender information:
business system, (outbound) interface name, and interface namespace.
You can create one or more receivers for this sender, and also a condition to
determine when a message is sent to these receivers.
Interface Determination
You have to create an interface determination for the receiver that is entered in
the receiver determination. This involves specifying one or more (inbound)
interface names and interface namespaces. You use an interface mapping from the
Integration Repository for each interface.
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BIT450 Lesson: Configuration in the Integration Directory
Figure 44: Configuration Overview Integration Directory
Communication Channel for Integration Engines
If a business system has an ABAP Integration Engine, you have to use a
communication channel of type Integration Engine. In the current integration
scenario, this communication channel must therefore refer to the business system
Training.You either create the communication channel as a URL, or as a reference
to an SM59 destination. If using the URL option, the required entry is
http://<host>:<port>/sap/xi/engine/?type=receiver .
Figure 45: Communication Channel of Local Integration Engine
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Unit 3: Using Generated Proxy Objects BIT450
If the communication channel is an SM59 destination, you have to maintain it in
the ABAP part of the Integration Server . It must reference the local Integration
Engine of the business system. As an http destination it must therefore have thefollowing properties:
Name Any name, in upper case letters, in this case:
XI_TRAINING
Connection Type H (HTTP destination for R/3 system)
Target Host Back-end Host (in this case: localhost)
Service Number 8000 (ABAP HTTP port)
Path Prefix /sap/xi/engine/?type=receiver
(ICM service for local Integration En-
gine)
Logon Data (user/pw/language/client of target system)
You then create a communication channel of type Integration Engine in the
Integration Directory. In the communication channel, you can either specify
the receiver parameters with interface names and namespace, or enter generic
placeholders (*).
J2EE Integration Engine:
If the receiver system is a business system based on an SAP J2EE server with
proxy objects, the URL entry in the communication channel must be as follows:
http://<host>:<port>/MessagingSystem/receive/JPR/XI.
Once you have completed the above steps, you will be able to use the integration
scenario to display and call all the maintained configurations.
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BIT450 Lesson: Configuration in the Integration Directory
Exercise 13: Configuration in the
Integration DirectoryExercise Objectives
After completing this exercise, you will be able to:
• Create a configuration scenario in the Integration Directory by copying an
integration scenario from the Integration Repository.
• Configure the synchronous exercise scenario in the Integration Directory
Business Example
You are responsible for configuring a scenario in which a Java application callsinformation from a back end using the Integration Server.
Task: Configuration in the Integration Directory
You make the settings for routing and mapping messages in the Integration
Directory. This is where you configure the Integration Repository objects that
were created at design time. The following tasks take you through the individual
steps that are required to configure the synchronous scenario.
Configure the synchronous scenario that was described in the lesson “Business
Scenarios in the Integration Repository” Create a configuration scenario by
copying the integration scenario from the Integration Repository.
1. Log on to the Integration Server. From the menu, start the Integration
Builder and log on to the Integration Directory.
2. In the Integration Directory, create the configuration scenario
BIT450_Sync_## by copying the integration scenario
BIT450_Scenario1_##.
3. In the configuration scenario BIT450_Sync_## that you created
previously, use the automatic Integration Scenario Configurator to save a
configuration with the following information:
Sender Business System WEBAS_JAVAInterface Name CustomerInformation_Request
Interface
Namespace
http://bit450.com/xi/java##
Receiver Business System SAP_BACKEND
Interface Name CustomerInformation_Provide
Continued on next page
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Unit 3: Using Generated Proxy Objects BIT450
Interface
Namespace
http://bit450.com/xi/abap##
Interface
Mapping
Interface Mapping
Name
CustomerInfoMap
IF Mapping
Namespace
http://bit450.com/xi/java##
SWCV SC_BIT450_SALES 1.0
Connection
Communication
Channel
SAP_Proxy_In
HTTP Destination SAP_BACKEND_IE
4. To check the configuration, resend a message from your Java application
(http://<host>:<port>/sales##.
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BIT450 Lesson: Configuration in the Integration Directory
Solution 13: Configuration in the
Integration DirectoryTask: Configuration in the Integration Directory
You make the settings for routing and mapping messages in the Integration
Directory. This is where you configure the Integration Repository objects that
were created at design time. The following tasks take you through the individual
steps that are required to configure the synchronous scenario.
Configure the synchronous scenario that was described in the lesson “Business
Scenarios in the Integration Repository” Create a configuration scenario by
copying the integration scenario from the Integration Repository.
1. Log on to the Integration Server. From the menu, start the IntegrationBuilder and log on to the Integration Directory.
a) Choose Exchange Infrastructure: Integration Builder ! Start
Integration Builder or call transaction SXMB_IFR. Choose Directory
(Configuration). The user name and password are the same as those
required to log on to the Integration Server.
2. In the Integration Directory, create the configuration scenario
BIT450_Sync_## by copying the integration scenario
BIT450_Scenario1_##.
a) Choose Tools! Copy Integration Scenario from the Integration
Repository.
b) Use the F4 help to select your integration scenario
BIT450_Scenario1_## and choose Continue to confirm.
c) Enter the name of the configuration scenario: BIT450_Sync_## and
confirm by choosing Finish and Close.
3. In the configuration scenario BIT450_Sync_## that you created
previously, use the automatic Integration Scenario Configurator to save a
configuration with the following information:
Sender Business System WEBAS_JAVA
Interface Name CustomerInformation_Request
Interface
Namespace
http://bit450.com/xi/java##
Receiver Business System SAP_BACKEND
Interface Name CustomerInformation_Provide
Continued on next page
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Unit 3: Using Generated Proxy Objects BIT450
Interface
Namespace
http://bit450.com/xi/abap##
Interface
Mapping
Interface Mapping
Name
CustomerInfoMap
IF Mapping
Namespace
http://bit450.com/xi/java##
SWCV SC_BIT450_SALES 1.0
Connection
Communication
Channel
SAP_Proxy_In
HTTP Destination SAP_BACKEND_IE
a) Step 1 Select component view: As only one view is available, you
can skip this step.
b) Step 2: Assign services: Select the application components to which
you want to assign a service (for example, SALES). Choose Assign
Service. Choose the pushbutton with the green cross to insert a line,
and then use the F4 help to assign the service: for the component
SALES, this is the service WEBAS_JAVA, for the component
CustomerInfoSystem, this is the service SAP_BACKEND.
c) Step 3: Configure connections: Select the connection that you
want to configure and click on Configure Connections. Assignthe communication channel SAP_Proxy_In to the receiver
SAP_BACKEND and check the mapping settings.
d) Step 4: Generate: Generate the objects by clicking on Generate. Under
Settings – General, choose Generate and leave the rest of the settings
on the default values. Choose Start to confirm.
e) Display the resulting log. Close the log window. You do not need
to save.
f) Close the Integration Scenario Configurator window and save the
changes.
g) On the Change Lists tab, in the navigation toolbar (left of the window),
activate your change list by clicking the right mouse button and
choosing Activate from the context menu.
Continued on next page
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BIT450 Lesson: Configuration in the Integration Directory
4. To check the configuration, resend a message from your Java application
(http://<host>:< port>/sales##.
a) Open a browser and enter the URL http://<host>:<port>/sales##.
b) Use the test data Name = SAP and Surname = AG and send the
query.
c) You will see the correct response from the target system (incl. your
group number).
d) You can also call transaction SXMB_MONI in client 800 and use the
monitor for processed XML messages. On the selection screen, enter
WEBAS_JAVA in the Sender Business System field, and choose Execute
to start the monitor.
Your message is displayed with a checked flag icon, which indicatesthat it has been processed successfully.
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Unit 3: Using Generated Proxy Objects BIT450
Lesson Summary
You should now be able to:• Configure the integration scenario in the Integration Directory
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BIT450 Lesson: Java Server Proxy Implementation
Lesson: Java Server Proxy Implementation
Lesson Overview
Introduction to Java inbound proxy implementation.
Lesson Objectives
After completing this lesson, you will be able to:
• implement and configure a previously generated Java server proxy for
generating and sending a message to the Integration Server .
Business Example
You are a member of an integration project team and are responsible for
programming inbound processing using generated Java proxy objects, and
therefore need to implement and configure the server proxy.
Java Server Proxy Implementation
You have created an inbound message interface for your service in the Integration
Repository. You can use Java proxy generation to generate server proxy beans and
server proxy classes and include them in your application.
Figure 46: Java Inbound Proxy Implementation
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Unit 3: Using Generated Proxy Objects BIT450
Lesson Summary
You should now be able to:• implement and configure a previously generated Java server proxy for
generating and sending a message to the Integration Server .
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BIT450 Lesson: Using ABAP Client Proxies
Lesson: Using ABAP Client Proxies
Lesson Overview
Introduction to the generated objects and using the method for an outbound
message.
Lesson Objectives
After completing this lesson, you will be able to:
• Use a generated client proxy method in ABAP to send a message to XI
Business Example
You are an ABAP developer and have already generated the ABAP proxy objects.
You now want to know how to use the classes and methods for an outbound call.
Using Generated Proxy Objects
Once you have generated the proxy objects using transaction SPROXY, you can
use them in your own application. As well as the generated class and its method
(execute_synchronous in the synchronous case), it is also important to know
the data types, data structures, and possible exceptions. You can check this in
transaction SPROXY.
The following graphic illustrates the flow of an outbound message for thesynchronous and asynchronous case.
Figure 47: Processing Steps for Outbound Messages
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Unit 3: Using Generated Proxy Objects BIT450
You have to perform the following steps in your own application:
• Declare the required types
• Compile the information to be sent
• Call the client proxy method
• Set a commit work (in the asynchronous case)
• Catch any exceptions
• Receive the response message (in the synchronous case)
Hint: In XI 2.0, the client proxy method was a class method. This means
that when you use client proxies on an SAP WebAS 6.20 system, you do
not have to generate an instance.As of XI 3.0, (and hence for SAP WebAS from 6.40), the client proxy
method is an object method. This means that an instance (an object) of
the class must first be generated before the execute_synchronous method
can be called.
Figure 48: Proxy Programming Model for SAP XI 2.0 and 3.0
Hint: The ABAP report SXIVERI_PROXY_GENVERS_CHECK
provides support for the migration of proxy objects from XI 2.0 to XI 3.0.
It lists proxy objects with an outdated generation version.
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BIT450 Lesson: Using ABAP Client Proxies
You also have to catch any system exceptions which occur in addition
to the exceptions saved in the message interface, for example, if the
Integration Server cannot find a receiver due to configuration errors. Theexception class CX_AI_SYSTEM_FAULT is available in ABAP for this
purpose. You can also use the superordinate class of all application classes
CX_AI_APPLICATION_FAULT to catch any application exceptions. In the
asynchronous case, the application errors are persisted (saved) in the target system.
Figure 49: Schema of an ABAP Outbound Call
If an application error occurs, you have to look at all detailed messages in a loop
by using the table faultDetail.
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Unit 3: Using Generated Proxy Objects BIT450
Figure 50: Structure of an Application Error Message
Extended XML Handling
In ABAP, if an interface parameter is initial, you do not know whether the
parameter was not assigned a value at all, or an initial value was transferred. In
addition, the XSD standard specifies the procedure for default values. For proxy
generation, this results in the following standard behavior for client proxies: when
the XML data stream is generated, the default value is set in all initial fields.
Optional, initial, scalable elements without a default value are suppressed in the
message to improve performance. You can override this standard procedure.
For rendering/parsing the XML data stream, there is a special mode in which it is
permitted, for example, to explicitly suppress certain tags, set them to XSI:NIL,
and so on. As this mode is very performance-intensive, you have to activate it
explicitly by selecting a flag.
CREATE OBJECT lo_abc.
lo_payload_protocol
?= lo_abc->get_protocol( if_wsprotocol=>payload ).
lo_payload_protocol->set_extended_xml_handling (X).
CALL METHOD lo_abc->excecute_asynchronous ...
Hint: The method GET_PROTOCOL returns an object of the type
IF_WSPROTOCOL. IF_WSPROTOCOL_ASYNC_MESSAGING
implements IF_WSPROTOCOL, so you need to perform a type casting:
lo_async_messaging ?= ....
IF_WSPROTOCOL contains all available protocols as constants
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BIT450 Lesson: Using ABAP Client Proxies
The ABAP proxy generation functions generate control tables of type
PRXCTRLTAB (line type PRXCTRL) for each complex type. This component is
called CONTROLLER. Using this table you can define for each individual fieldwhether it is to occur in the message, and how. For a table line, set the FIELD
field to the ABAP field names, the VALUE field to a value from the type pool sai,
and attach the line to the table. The VALUE field can have the following values:
Possible values for the VALUE field of the CONTROLLER table
Value Meaning
sai_ctrl_initial Field appears with type-correct initial value in the message;
it controls default handling and performance optimization.
Value is ignored for structures or complex types.
sai_ctrl_nil The value xsi:nil is sent for this field in the message.sai_ctrl_none Field does not occur in message, regardless of this value or
the default.
Asynchronous Case
As mentioned above, in the case of asynchronous ABAP client proxies, you have
to execute a commit work after calling the method execute_asynchronous, and
this sends the message.
For asynchronous messages you can use the CONTROLLER object, for example,
to set the Queue ID for the processing type Exactly Once In Order. This queueID is the serialization context (a string), which ensures that all messages with
this string are processed by the receiver in the same order as they are called by
the sender.
Setting the Queue ID
* Serialization context to bundle asynchronous messages
* that shall be received in the same order as sent
DATA:
lo_async_messaging TYPE REF TO if_wsprotocol_async_messaging.
lo_async_messaging ?=
lo_abc->get_protocol( if_proxy_protocol=>async_messaging ).
lo_async_messaging->set_serialization_context(’MY_QUEUE_ID’).
CALL METHOD ...
Hint: The CONTROLLER object from XI 2.0 is no longer supported.
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Unit 3: Using Generated Proxy Objects BIT450
Error Analysis for Client Proxy
Similarly to the ICF server recorder, transaction SICF also offers an ICF client
recorder. Choose the menu option Client / Recorder to access the functions for
activating, deactivating, and displaying a recording.
Debugging for client proxy calls is the same as the standard debugging in ABAP.
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BIT450 Lesson: Using ABAP Client Proxies
Exercise 14: Generating ABAP Client
Proxy ObjectsExercise Objectives
After completing this exercise, you will be able to:
• Generate ABAP client proxy objects for an outbound message interface
Business Example
You will be using an ABAP SAP system to generate a call using proxy technology,
and you want to generate the required proxy objects.
Task 1:
In the SAP_BACKEND system, generate the proxy objects for the outbound
message interface RequestInformation_Send in your namespace (SWCV
SC_BIT450_CIS).
1. Start the transaction SPROXY in the SAP_BACKEND.
2. Generate the proxy objects for the outbound message interface
RequestInformation_Send in your namespace http://bit450.com/xi/abap##
(SWCV SC_BIT450_CIS)
Task 2:Test your ABAP client proxy.
1. Start a test call in transaction SPROXY.
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Unit 3: Using Generated Proxy Objects BIT450
Solution 14: Generating ABAP Client
Proxy ObjectsTask 1:
In the SAP_BACKEND system, generate the proxy objects for the outbound
message interface RequestInformation_Send in your namespace (SWCV
SC_BIT450_CIS).
1. Start the transaction SPROXY in the SAP_BACKEND.
a) Log on to the SAP_BACKEND system using the logon information
provided by the instructor.
b) Call transaction SPROXY.
2. Generate the proxy objects for the outbound message interface
RequestInformation_Send in your namespace http://bit450.com/xi/abap##
(SWCV SC_BIT450_CIS)
a) In transaction SWCV, navigate to your namespace for the outbound
message interface.
b) Start the proxy generation by double clicking on the message interface.
Use the package $TMP and the prefix Z##_.
c) Check the proxy objects for naming conflicts.
d) To activate all the objects, choose “Activate” or, from the menu, Proxy! Activate.
Continued on next page
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Unit 3: Using Generated Proxy Objects BIT450
Lesson Summary
You should now be able to:• Use a generated client proxy method in ABAP to send a message to XI
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BIT450 Lesson: Server Proxies, Web Services, and WSDL
Lesson: Server Proxies, Web Services, and WSDL
Lesson Overview
You want to use inbound interfaces as a Web service.
Lesson Objectives
After completing this lesson, you will be able to:
• Describe how to use server proxies as a Web service
• Describe any inbound interface as a Web service
Business ExampleYou want to use inbound interfaces as a Web service and need to know which
possibilities are available for which interfaces.
Web Services
A Web service is a modular function that is described and called by Internet
standards.
• Is an application function
• Is self-descriptive
• Is modular
• Can be published
• Can be called using standards
A Web service is described in Web Service Description Language (WSDL)
by means of XML files. It can be processed automatically, for example, for
generating a proxy object to call the service.
A Web service is called using Internet standards: based on the http(s) protocol and
the XML data format SOAP (Simple O bject Access Protocol).
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Unit 3: Using Generated Proxy Objects BIT450
Figure 51: WSDL for Describing a Web Service
Because a Web service proxy object is adjusted to the respective developmentenvironment, the service can be called using a simple local method call. You do
not need to program SOAP messages, since this is done by the proxy object. This
is exactly what happens when you use XI client proxies.
To publish a Web service, you have to make the description file, that is, the WSD
(or WSDL file), available in the Service Directory.
Figure 52: Publishing and Calling a Web Service
The directory itself is based on the UDDI standard: Universal Description and
Discovery.
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BIT450 Lesson: Server Proxies, Web Services, and WSDL
Overview: XI and Web Services
There are two main methods by which inbound interfaces in XI 3.0 can be used
as Web services:
• A server proxy can be described as a Web service and then called directly;
• Using the Integration Server , any inbound interface can be described and
used as a Web service.
The second option is described in the following graphic as an “Enhanced Web
Service”.
Figure 53: XI and Web Services
Server Proxy as Web Service
In SAP XI , synchronous server proxies can also be used as a Web service. To do
this, you need to create a “virtual interface” and a “Web Service Definition” for
the server proxy object.
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Unit 3: Using Generated Proxy Objects BIT450
Figure 54: Virtual Interface for SAP XI Server Proxy
The SAP WebAS 6.40 introduces the Web Services Framework, which uses virtual
interfaces to represent SAP interfaces such as server-proxy, BAPIs, etc. as a Web
service. This means that if a virtual interface is created for a server proxy, the
server proxy can be used directly as a Web service via this interface.
To create these objects, you use the WebService Wizard, which is integrated in
the Object Navigator (transaction SE80) and can be called in transaction SPROXY
using the menu Goto!WebService Wizard . You enter the names of the virtual
interface (for example, Z_VI_CustomerInfo) and the Web service definition (for
example, Z_WSD_CustomerInfo) in the WebService Wizard , which then creates
the objects. In the Web service definition, the Web service is assigned features
such as the communication type, authentication level, and transport properties.
The virtual interface defines the mapping of names for operations and end point
parameters of the Web service and uses the structures of the proxy. If you want to
later enhance the proxy interface using the message types, the virtual interface is
automatically enhanced at the same time.
As for ABAP Web services in general, the Web service you have created for the
server proxy can also be displayed in Web service administration (transactionWSADMIN). You can also call the Web service homepage (menu Web Service
! Web Service Homepage) and generate a WSDL file (menu Web Service!
WSDL). The WSDL file then enables other systems to call the server proxy
as a Web service. It contains information on the address of the Web service,
and information on the parameters and structures. The address of the Web
service is also visible directly in the transaction WSADMIN (for example,
“/sap/bc/srt/xip/sap/Z_WSD_CustomerInfo”), here you need to add the host and
port.
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Unit 3: Using Generated Proxy Objects BIT450
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BIT450 Lesson: Server Proxies, Web Services, and WSDL
Exercise 15: Checking a Web Service for
a Server ProxyExercise Objectives
After completing this exercise, you will be able to:
• Check Web service definitions for a server proxy
Business Example
You want to check whether a Web service definition exists for a server proxy.
Task:Check whether a Web service definition exists for the server proxy
CustomerInformation_Provide in the namespace http://bit450.com/xi/abap00
and start the homepage for the Web service.
1. Log on to SAP_BACKEND.
2. Navigate to Web service administration for the SOAP runtime.
3. Navigate to the Web service definition created by the instructor.
4. Call the homepage for the Web service.
5. Test the Web service.
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Unit 3: Using Generated Proxy Objects BIT450
Solution 15: Checking a Web Service for
a Server ProxyTask:
Check whether a Web service definition exists for the server proxy
CustomerInformation_Provide in the namespace http://bit450.com/xi/abap00
and start the homepage for the Web service.
1. Log on to SAP_BACKEND.
a) Use the logon parameters provided by the instructor.
2. Navigate to Web service administration for the SOAP runtime.
a) Start transaction WSADMIN for administration of the Web services for the SOAP runtime.
3. Navigate to the Web service definition created by the instructor.
a) Open the node “SOAP Application for XI Proxies” and open the entry
Z_WSD_CustomerInfo, to display the entry BIT450 WebService
Demo. Select the entry with the mouse.
4. Call the homepage for the Web service.
a) Use F8 or choose Web Service!Web Service Homepage to call the
homepage.
b) When asked to select the “Settings for WSDL Generation”, chooseDocument-Style.
c) To log on to the Web service homepage, you must have a user for the
J2EE server that provides the homepage. Use the logon information
provided by the instructor.
Continued on next page
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BIT450 Lesson: Server Proxies, Web Services, and WSDL
5. Test the Web service.
a) On the Web service homepage, choose Test from the menu to display
the test interface.
b) Under Z_WSD_CustomerInfoSoapBinding, choose the link to
CustomerInformation_Provide.
c) For “parameters (string)”, enter SAP AG and send the data by pressing
Send .
d) The request and the response are then displayed in separate fields.
Hint: Note that the test message is not displayed in the XI
message monitor (SXI_MONITOR), as the access is not
processed using the proxy runtime, but by the SOAP runtimeof the system instead.
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Unit 3: Using Generated Proxy Objects BIT450
Lesson Summary
You should now be able to:• Describe how to use server proxies as a Web service
• Describe any inbound interface as a Web service
Related Information
More information on the subject of Web services in ABAP is provided in the
course BC416 “ABAP Web Services”.
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Unit Summary BIT450
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BIT450 Test Your Knowledge
Test Your Knowledge
1. How do you access the interface parameters in the ABAP inbound method
to be implemented?
2. How is the business system determined for a client proxy bean that sends a
message to the Integration Server ?
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Test Your Knowledge BIT450
Answers
1. How do you access the interface parameters in the ABAP inbound method
to be implemented?
Answer: The parameters INPUT and OUTPUT are available. These
correspond to the DDIC data type of the message types for the method.
2. How is the business system determined for a client proxy bean that sends a
message to the Integration Server ?
Answer: Using the SAP WebAS J2EE Server , which is registered on the
SLD as a technical system, the Java proxy runtime determines the assigned
business system from the SLD.
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BIT450 Course Summary
Course Summary
You should now be able to:
• Assess when to use proxy objects
• Execute the necessary proxy generation
• Use the generated client proxy objects
• Implement the generated server proxy objects
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Course Summary BIT450
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Feedback SAP AG has made every effort in the preparation of this course to ensure the
accuracy and completeness of the materials. If you have any corrections or
suggestions for improvement, please record them in the appropriate place in the
course evaluation.
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