Using ATL/EMFTVM for import/export of medical data

8-Oct-2014, Dennis Wagelaar

Import/exporta common programming scenario

SuMEHR

Corilus XML

SuMEHR

Corilus XML

Corilus XML as pivot model

SuMEHR

Corilus XML

Corilus XML as pivot model

SuMEHR

Corilus XML

Import/exportsimplified

Corilus XML

Why ATL?(ATL Transformation Language)

Domain-specific language for

transformationMore expressive than mapping frameworks

embedded in Java, e.g. Dozer

Less verbose for transformations than general-

purpose languages

Uses OCL standard for expressions

Uses EMF for data representation

Closely related to plain Java objects

Enriched with additional concepts, e.g. containment and associated properties

Why EMFTVM?(EMF Transformation Virtual Machine)

Enhanced for “online” use (performance)

Reuse pre-loaded transformations for multiple executions

JIT compiler translates to Java bytecode

Adaptive matching algorithm adds

performance

Improved modularity

Supports multiple rule inheritance across different modules

Supports module import across different source

languages

Why EMFTVM?(EMF Transformation Virtual Machine)

10https://wiki.eclipse.org/ATL/EMFTVM

EMF vs. POJOs

Uses Uses

EMF Models Plain Old Java Objects

EMF vs. POJOsThis is what we have...

Plain Old Java Objects

From POJOs to EMFMoDisco and EMiFy

Java Model Reverse Engineer Plain Old Java Objects

Java Model

Ecore Model

EMiFy.atl

Ecore Model

Generate Model

EMF Java Objects

Java Model

Ecore Model

EMiFy.atl

Reverse Engineer

Generate Model

EMF Java Objects

Using ATL

Using ATLImplicit tracing

Using ATLCollaboration

.NET developer Java developer

Java developerJava developer

Common: 178 lines of ATL codeImport: 7283 lines of ATL codeExport: 4617 lines of ATL code

4906 lines of Java import/export code

Runtime performance

03-10-2014 | 13:57:19,223 | INFO | http-0.0.0.0-8080-4 | be.healthconnect.emr.server.rs.ImportResource | Import partial document 50403-10-2014 | 13:57:19,307 | INFO | http-0.0.0.0-8080-4 | be.healthconnect.emr.server.services.impl.CorilusXMLImportServiceImpl | Start full import for ...03-10-2014 | 13:57:20,006 | INFO | http-0.0.0.0-8080-4 | be.healthconnect.emr.server.services.impl.CorilusXMLImportServiceImpl | Starting transformation...03-10-2014 | 13:57:21,099 | INFO | http-0.0.0.0-8080-4 | be.healthconnect.emr.server.emftvm.impl.AbstractEMFTVMTransformer | Timing data: Loading finished at 0,000036 seconds (duration: 0,000036 seconds) Matching finished at 0,285989 seconds (duration: 0,285953 seconds) Applying finished at 1,091511 seconds (duration: 0,805522 seconds) Post-applying finished at 1,091712 seconds (duration: 0,000201 seconds) Recursive stage finished at 1,091751 seconds (duration: 0,000039 seconds) Execution finished at 1,091915 seconds (duration: 0,000203 seconds)

0,7 sec Tr

1,1 sec

12,9 sec

Medium-large patient file (2277 record entries)

ConclusionWe tackled a complex and common programming scenario such as import/export

by breaking it up in three ways:

Use specialised language for translating between

domain model and pivot model

Use regular Java to handle file I/O and

database interaction

Use pivot model for import/

export => only support a single import/export

format

Questions?

http://www.healthconnect.be/http://www.corilus.be/http://www.careconnect.be/

Questions

Using ATL/EMFTVM for import/export of medical data

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