Installing and Building GTLAB

Marlon Pierce

Indiana Univeristy

GTLAB and OGCEOGCE contains multiple sub-projects

Portlet-based Grid portal (with GridSphere and Tomcat). Workflow suite (services and add-ins to the portal) Information Web services Gadget container Cyberaide JavaScript libraries GTLAB

These are packaged with Maven and include everything you need except Java and (for some services) MySQL.

We try to make things installable with minimal fuss. Consistent directory structures across projects Edit one config file (pom.xml) Run one command (mvn clean install) You may need to futz a little with MySQL

Overview and Examples

User’s Browser

Portlet, Gadget Containers

iGoogle, Facebook

GTLAB Gadgets

TeraGrid Services(GRAM, GridFTP,

INCA)

Google GData Services, Twitter

Feeds, etc

RPS, RDS, GPIR Services

GTLAB’s Relationship to Other Components

Various GTLAB applications deployed as portlets: Remote directory browsing, proxy management, and LoadLeveler queues.

GTLAB Applications as Google Gadgets: MOAB dashboard, remote directory browser, and proxy management.

MyProxy Example<h:form id="form"> <h:outputText value="Username:"/> <h:inputText value="#{resource.username}" required="true"/>

<h:outputText value="Password: "/> <h:inputSecret value="#{resource.password}" required="true"/>

<h:outputText value="MyProxy Server: "/> <h:inputText value="#{resource.myproxyHostname}" required="true"/>

<o:submit id="submit" value="Submit" binding="#{builder.body}" action="#{builder.junkAction}" >

<o:multitask id="multi" persistent="true" taskname="#{resource.taskname}"> <o:myproxy id="mypr" hostname="#{resource.myproxyHostname}"

lifetime="2" password="#{resource.password}" port="7512"

username="#{resource.username}"/> </o:multitask> </o:submit> </h:form>

Executing Multiple Task<o:submit id="submit" value="Submit" binding="#{builder.body}"

action="#{builder.junkAction}" > <o:multitask id="multi" persistent="true"

taskname="#{resource.taskname}"> <o:jobsubmit id="js" myfaces="true"

arguments="#{resource.arguments}" executable="#{resource.executable}" hostname="#{resource.hostname}" provider="#{resource.provider}" stdout="#{resource.stdout}"/>

<o:filetransfer id="ft" myfaces="true" from="#{resource.from}"

to="#{resource.to}" /> <o:dependency id="dep" task="ft"

dependsOn="js"/> </o:multitask></o:submit>

<o:submit id="submit" value="Submit" binding="#{builder.body}" action="#{builder.junkAction}">

<o:multitask id="multi" persistent="true" taskname="#{resources.taskname”>

<o:rpsOptimal resource="task1-resources"

id="rpsoptimal-exec" myfaces="true"/>

</o:multitask> </o:submit>

Resource Prediction Service Client with GTLAB

Example with Dependency <o:submit id="submit” …> <o:multitask id="multi” …>

<o:rpsAddModel resource="task1-resources"

id="rpsAddModel-exec"

myfaces="true"/> <o:rpsManager resource="task1-

resources" id="rpsManager-

exec" myfaces="true"/>

<o:dependency id="deps-rpsstuff” task="rpsManager-exec" dependsOn="rpsAddModel-exec"/>

</o:multitask> </o:submit>

More Detail: Available Tags and Features

GTLAB FeaturesExtends Java Server Faces.o Tag components wrap major COG Abstraction Layer

featureso And Web Service clients, GridShib, etc.o Supports tag inter-dependencies.

Allows you to do standalone development.

Use JSF portlet bridge to convert into portlets No new coding, just add/modify XML config files and jars. Process is automated

Or forget about portletso Convert into Google Gadgetso Develop as a Facebook applicationo Etc.

Getting GTLABSee

http://www.collab-ogce.org/ogce/index.php/GTLAB

You can use your favorite SVN client to check out. svn co

https://ogce.svn.sourceforge.net/svnroot/ogce/GTLAB (latest)

svn co https://ogce.svn.sourceforge.net/svnroot/ogce/tags/GTLAB-tg09 (tagged)

“Latest” will give you easy access to any updates “svn update”Best option if you want to actively develop and get fixes

right away.

No SVN? Get the TARSourceForge’s

SVN/CVS viewer now provides a “Download GNU Tar” option.

http://ogce.svn.sourceforge.net/viewvc/ogce/GTLAB/ for latest.

http://ogce.svn.sourceforge.net/viewvc/ogce/tags/GTLAB-tg09/ for tag

Levels of Abstraction in GTLAB code

You can use prepackaged gadgets/portlets.

You can develop new applications using existing tag libraries.

You can make new tags for your services

You can hack or steal the codeNote JSF is compatible with JSP, so you can

mix and match.

And you can embed JavaScriptYUI, Scriptaculous user interface goodies.Google and Facebook APIs.

Tag Description

MyProxy Gets a proxy credential (COG)

JobSubmit Runs remote commands (COG)

FileOperation Create, delete, list remote files and dirs (COG)

FileTransfer GridFTP downloads, 3rd party transfers (COG)

XSubmissionOutput

Format outputs of job and file operations

ResourceDiscovery

Clients for the RDS

ResourcePrediction

Clients for the RPS

MyCommunityProxy

Get and decorate TG Community credentials with Grid Shib

Community Log Log use of TG Community credentials

GTLAB Example Description

MyProxyExample Get a credential and store in OGCE global proxy store.

JobSubmitExamples

Various examples showing how to submit a grid job and get output.

Dashboard Examples

Runs showq on Big Red, Cobalt, and Mercury and formats output.

DirectoryBrowser Displays and downloads files on a remote host via GridFTP

MultipleTaskExample

Shows how to couple file transfers, operations, and

These will work as gadgets, portlets, or standalone

applications

Gadgets and Portlets

GTLAB Gadgets CodeBase

GTLAB PortletsCodeBase

Tomcat Web

Server

Tomcat Web Server

+ Portlet Container

iGoogleClient

Aggregator

Compile and deploy into server

Decorate with bridge and container jars, xml config files.

GTLAB gadgets can also run as portlets with no code changes by using the JSF portlet bridge.

Making GTLAB Google Gadgets

A Gadget is a standalone application that is integrated into your personal iGoogle display.They can run on your Web server.You can use SSL/HTTPS

Google Gadgets have two versionshttp: these use Google’s JavaScript APIsurl: these wrap external applications with

Iframes.

We currently support “url” gadgets.

Example Gadget Config File <?xml version="1.0" encoding="UTF-8" ?> <Module> <ModulePrefs title="MyProxy Gadget Example"

scrolling="true" height="500"/>

<Content type="url" href="http://…/:8080/GTLAB/examples/

MyProxyExample.jsf"> </Content> </Module>

Save this as MyProxy.xml and place in a Web accessible place.

Other GadgetsProviders

Tomcat + GTLAB Gadgets

Grid and Web Services

(TeraGrid, OSG, etc)

Other GadgetsProviders

Social Network Services (Orkut,

LinkedIn,etc)

RSS Feed, Cloud, etc

Services

Gadget containers aggregate content from multiple providers. Content is aggregated on the client by the user. Nearly any web application can be a simple gadget (as Iframes)

Click “Add stuff” and then “Add feed or gadget”. Type the URL of your gadget.

GTLAB Applications as Google Gadgets: MOAB dashboard, remote directory browser, and proxy management.

Tomcat +

Portlets and Container

Grid and Web Services

(TeraGrid, OSG, etc)

Grid and Web Services

(TeraGrid, OSG, etc)

Grid and Web Services

(TeraGrid, OSG, etc)

HTML/HTTP

SOAP/HTTP

Common science gateway architecture.

Aggregation is in the portlet container.

Users have limited selections of components.

Making GTLAB Gadgets into Portlets

Do all development in jsf_standalone directory This is where your template tags will be placed

When you are ready to convert:Download and build the OGCE portalcd GTLAB/transitionmvn clean process-resourcescd GTLAB/portletsmvn clean install

You will need to make small edits to portlet.xml, group.xml, and layout.xml in GTLAB/portlet/src/main/webapp/WEB-INF/

That’s it.

Various GTLAB applications deployed as portlets: Remote directory browsing, proxy management, and LoadLeveler queues.

Getting Started with GTLAB

GTLAB Directory Structure

Build GTLABUnpack or checkout

code

Cd GTLAB All commands are

executed from here.

Edit properties at the top of pom.xml. Change IP Change project.home if

you unpack someplace besides $HOME.

Run “mvn clean install”

<properties><portal.server.ip>

156.56.104.143</portal.server.ip><host.base.url>

http://${portal.server.ip}:8080/</host.base.url>

<project.home>${env.HOME}/GTLAB

</project.home><tomcat.version>

apache-tomcat-5.5.27</tomcat.version>

<catalina.home>${project.home}/portal_deploy/${tomcat.version}/

</catalina.home><dot.globus.home>

${env.HOME}/.globus/</dot.globus.home>

</properties>

Run ExamplesFrom GTLAB, start tomcat with ./startup.sh.

From GTLAB, stop Tomcat with ./shutdown.sh

Point browser to http://localhost:8080/GTLAB

Start with MyProxy Example

Next Steps

Play with examples. These are really bare bones. Make something

interesting.

Make a Google gadget.

Mix and match tags in a pipeline to make a new application.Use the dependency tag.Note you can mix and match JSF and JSP if you

are not familiar with JSF.

Try making a new tag.Explained next.

Making New Tags and Examples

Making a New JSF Page from Tags

I recommend starting from the examples. jsf_standalone/src/main/webapp/examples

“Build” the examples with mvn –o clean install –f jsf_standalone/pom.xml

The “-o” option is used to build offline. Will also avoid unnecessary Maven repository updates.

The “-f” specifies only build this specific module.

I recommend not futzing with the deployed versions under portal_deploy.A computer is a state machine. State must be

reproducible.

Making a New TagRun the following command from GTLAB:

mvn clean process-resources -Dtag.name=test -Dprojectname=Test -f templateTag/pom.xml

Add -Ddest.dir=/tmp for a dry run.

Replace “test” with the name of your tag.

Replace “Test” with the name for your Bean.

This will make 4 files TestBean.java, TestTag.java, TestBeanFactory.java,

UITest.java

Edits also 3 config files gtlab-factory.xml, managed-beans.xml, components.xml

This will compile but to implement something useful, you will need to edit the highlighted files.

Implementing a Tag

The place to start is TestBean.java (or whatever you used for –Dprojectname=…).

This includes several inherited methods that can be implemented. Most important is submit(). Use the

try/catch block. This is where the action is.If you want to hook tags into chains,

implement getOutput() and setInput().Also take a look at the other beans.

Suggested Tags: A Wish ListWhat can you do in your bean? Anything server-side

Java can do.

Some suggestions: Implement a tag client to a remote Web service.

Amazon has some interesting ones…. Implement an RSS/Atom feed client to Twitter, your blog,

Facebook, etc.Combine the feeds as a mash-up.Connect to a database with JDBC. Implement a JMS publisher or subscriber. Use Google Java APIs to interact with Blogger, Calendar,

and YouTube.Try interacting with Facebook.

INCA Tags: An Extended Example

Example: Make an INCA Dashboard

INCA is used as the testing framework for the TeraGrid.

You can get the latest INCA test results from the URLhttp://inca.teragrid.org/inca/XML/kit-status-v1/

portal_summarySee Sangmi’s notes at

http://sangpall.blogspot.com/2009/03/being-nice-client-of-inca-service.html

You’ll get back some fine looking XML.

Let’s make a little dashboard out of this.

First, Create a New, Empty Tag

mvn clean process-resources \

-Dtag.name=incastatus \

-Dprojectname=IncaStatus \

-f templateTag/pom.xml

Second, Implement the Bean

Main thing is to implement IncaStatusBean’s submit() method.

Code is hard to put in a PPT slide

See http://ogce.svn.sourceforge.net/viewvc/ogce/GTLAB/jsf_standalone/src/main/java/ogce/gsf/gridbeans/IncaStatusBean.java

Third, Implement a JSF Page

Actual tag is shown below.

Full example is http://ogce.svn.sourceforge.net/viewvc/ogce/GTLAB/jsf_standalone/src/main/webapp/examples/IncaStatusExample.jsp?view=log

It includes some boilerplate (can be automated).

<o:incastatus id=”mytest" resource="task1-resources”

myfaces="true"/>

Here’s the resulting page. You can make into a portlet in a couple of steps. You can also tie to other tags in a pipeline.

Next Steps: Make a PipelineImplement the

setInput() and getOutput() methods.

Pipeline it with the Resource Description and Resource Prediction Service tags.

Integrate QBETS tagsCurrently unwritten

Integrate with Job Submission

Find Running Hosts(INCA or RDS)

Find Best Host for YourJob (RPS)

Find Host with Shortest Wait Time

(QBETS)

Submit Job

More Stuff about GTLABSupports linear tag dependencies.

Removed dependence on COG graph processing (still use the COG)

We can support graphs of any tag you care to write.Only support pipelines currently, not full DAGs

Redesigned to simplify writing new tags.Extensive use of factories.You no longer have to change core code to add a tagTemplates for 4 Java files and 3 XML config files now can

be done in one (mvn) stepTypically you will only need to edit one Java file.