Modeling for Fun and Profit

Modeling for fun and profit
© Anyware Technologies-All Right Reserved

David Sciamma
Eclipse Technical Manager
Anyware Technologies
May 25th, 2009

Anyware Technologies

Identity M2MSolutions
Founded in 2000 Central management of remote
equipment based on a generic, secure
Headquarters: Toulouse (France)
and distributed Machine-to-Machine
Regional subsidies: Paris (France), services platform
Munich (Germany), RTP (US)
80 people including a team of 65
experts.
Became Wavecom subsidiary in Q1

2008 and Sierra Wireless/Wavecom
group Subsidiary in March 2009
Open Source Solutions and Services
Website: www.anyware-tech.com Expertise, consulting and numerous
services around open source kernels
(Eclipse, Apache, …), web technologies
and IT integration.

Pragmatic MDA – May 25h, 2009 – David Sciamma – Anyware Technologies

Anyware Technologies OS3

Designer of Software Solutions

► Relevant and customized solutions
− which optimizes the performance of business processes
− which benefits of the best of the technologies
− Which are built from open sources kernels and components

► Our specificity
− An unique expertise around relevant technologies (Java, XML, XSL-T, Ajax,

JavaScript, JCR, RCP, CDO, EMF, GMF, GEF, ...)
− A company deeply involved in the most famous open source communities
− An industrial and agile approach to warranty costs, delays and quality.

► Keeping the experience brought by projects in order to develop products
or new open source components



Why ? How ?

Issue

• Small development team
• Fast prototyping
Constraints • Recurring kinds of
application

• Model Driven Approach
• Meta Modeling
Solution • Generation and generic
framework


Recurring kind of application

• Create the same kind of
application for different
Need domains
• Ex: a graphical editor, a form

• Pragmatic Model Driven
• Progressive commoditization
Solution • Progressive improvement of
the generator


Definition of a generator

• Creation of the domain specific language (DSL)
► Ex: UML, Autosar, Petri Net… genealogy

• Definition of the target
► Ex: graphical editor framework, web framework

• Creation of a model describing this target
► Ex: graphical editor metamodel, CRUD application metamodel

• Creation of the generator

• Don’t try to generate everything !

Definition of a generator
instantiate UML, Autosar, PetriNet…
Ecore DSL

Generation instantiate Generation
Define the generation parameters
metamodel model

Generation Scripts: JET, xPand, Acceleo…
templates implement the generation from
the generation model

Generation
Execute the generation templates
engine

Set of generated files:
Generated compose the targeted application
application


Creation of a generator

Generation Generated
Generator v1
metamodel v1 application v1
Improvements

Generation Generated
Generator v2
metamodel v2 application v3

Improvements

Generation Generated application
Generator vN
metamodel vN vN



Examples

Complete modeling environment

• Create a set of tools for a given
Need modeling language
• Ecore, UML, Autosar…

• Generate tools from the
metamodel
Solution • Allow to create homogeneous tools
• Speed up integration of a new
language


Concrete implementations

• TOPCASED
► UML, AADL, SAM, SysML…

• Autosar

• CoFluent Studio

• Ecore Tools


TOPCASED
DSL

Tabbed Properties Diagram Model navigator Context menu


Medany

• Mobile application
• Disconnected mode
Need • Synchronization with a server
• Administration
•…

• Modeling environment to define your
mobile application
Solution • Generation of applications using a
common core


Medany


Medany

Medany metamodel

Medany model

Mobile App RCP Web App Web Admin Synchro

OR OR

Android eRCP Struts GWT



• VNF

• ONSil


M2M Developer Suite

• Ease embedded development
(Machine-to-Machine)
Need • Define a structure for embedded
applications
• Accelerate creation fo M2M Solutions

• Modeling environment
• Component-oriented approach
Solution • Code generation
• Round tripping



• Home automation

• Fleet Tracking


Eclipse Modeling Project

Eclipse Modeling project

• Created in March 2006

• Provides a complete open source tool stack

• Leader: IBM

• Active members:

► Anyware Technologies
► Itemis
► Obeo
► Borland
► Embarcadero Technologies
► Lots of individuals
►…


Modeling Projects

EMF EMFT GMF M2M M2T TMF MDT GMT
EMF Ecore Tools ATL xPand xText UML …
Model EMF Procedural
Acceleo OCL
Validation Compare QVT

Model Declarative
Transaction
EMF Search
QVT
JET …

Model
Query …
CDO

Teneo

…

Modeling Projects

Framework to use models

incubation

Acceleo OCL

Model Declarative
Transaction
EMF Search
QVT
JET …

Model
Query …
CDO

Teneo

…

Modeling Projects

Framework to create graphical editors

Acceleo OCL

Model Declarative
Transaction
EMF Search
QVT
JET …

Model
Query …
CDO

Teneo

…

Modeling Projects

Framework to create transformations between models

Acceleo OCL

Model Declarative
Transaction
EMF Search
QVT
JET …

Model
Query …
CDO

Teneo

…

Modeling Projects

Framework to generate text from models

Acceleo OCL

Model Declarative
Transaction
EMF Search
QVT
JET …

Model
Query …
CDO

Teneo

…

Modeling Projects

Framework to generate model from text

Acceleo OCL

Model Declarative
Transaction
EMF Search
QVT
JET …

Model
Query …
CDO

Teneo

…

Modeling Projects

Reference implementations of OMG standards

Acceleo OCL

Model Declarative
Transaction
EMF Search
QVT
JET …

Model
Query …
CDO

Teneo

…

Modeling Projects

Research projects

Acceleo OCL

Model Declarative
Transaction
EMF Search
QVT
JET …

Model
Query …
CDO

Teneo

…

Modeling Projects (Focus)

Acceleo OCL

Model Declarative
Transaction
EMF Search
QVT
JET …

Model
Query …
CDO

Teneo

…

Eclipse Modeling Framework - EMF

EMF

• Framework used to create tools based on a model

• Ecore is used to create meta models.

• Ecore provides :
► Simple and reverse references

► Composition

► Types

• Close to UML class diagram.


EMF

• EMF bounds the modeling and development worlds :
► It transforms models into java

► Allows to use the model in your application

► Gives tools to increase development productivity

• Open-source

• Strong and tested technology (used since 2002)


EMF Generation

Ecore Model

GenModel

Display and
Model tree
Java Model edit basic Tests code
editor
functions


Graphical Modeling Framework - GMF

GMF

• Ease the development of graphical editor for models

• Runtime
► Framework with a lot of common features for graphical model
editors

• Generator

► Tool to generate a graphical editor from a model and the editor
definition


GMF


Model to Text - xPand

xPand

• Designed specifically for text generation
► OO template engine supporting template polymorphism

► Template Varibility using AOP

► Editor with Code Completion and Syntax

► Highlighting

• Debugger


xPand

• Example of template:
«IMPORT model»
«DEFINE file FOR SourceComponentClass»
«FILE project.name.toLowerCase() + "/" + name + ".java"-»
package «project.name.toLowerCase()»;

public class «name» extends ComponentClass {

«IF methods.select(m | m.kind.toString() == "EVENT").size > 0»
public void receiveEvent(int inputEventMethod, Object value) {

«FOREACH methods.select(m | m.kind.toString() == "EVENT") AS m-»
// TODO handle Event: " + «m.name.toUpperCase()»:
«ENDFOREACH-»
}
«ENDIF»
}
«ENDFILE»
«ENDDEFINE»


How to integrate all the components ?
The M2M Developer Suite Use case

Requirements

• Embedded development (Machine-to-Machine)

• Modeling environment

• Component-oriented approach

Model Code Binary Target Execution Debug

What is Machine-to-Machine (M2M)

M2M refers to data communication between machines.


Requirements

• Users profiles
► Newbies

► Solution providers

• Multiple targets
► Wavecom devices

► Embedded Linux

►…

► Lego Mindstorms


Features

Editors
Validation Navigator

Model

Editor

Compilation Code
Navigator

Communication Target Navigator


Features

Model


Modeling
Model

• EMF - Eclipse Modeling Framework
► The model is the pillar of the tool

► Used to model what is an embedded project

► Benefits from EMF
− Notifications

− Serialization

− Reflective API

− … all the incredible EMF tools (GMF, Validation, xPand…)


Modeling
Model


Features

Navigator

Model


Navigator
Navigator

• Objectives Model

► 1:1 Mapping between Project and Model

► Display informations in the model as project’s artefacts

• Workspace integration

► EMF Transaction

− Global model repository

− Transactional Editing Domain


Navigator
Navigator

• Project Explorer Model

► Displays model objects as the Project structure

► Based on Common Navigator Framework

− Extensible tree view

− Rather complex API

− But really powerful

Extension Points: org.eclipse.ui.navigator.*
Excellent tutorial: Building a Common Navigator based viewer

► We use an internal model to define the structure (nodes only
used to group or display informations)

Navigator
Navigator

• Project Explorer Model

► Result

EMF Objects
Model contribution

Navigation nodes

CDT contribution

Default display (resources)


Features

Editors
Navigator

Model


Model edition
Editors

• Forms editors Model
► Forms + EMF + databinding
− Create UI
private void createContent(FormToolkit toolkit, Composite parent) {
Composite composite = toolkit.createComposite(parent, SWT.NONE);
GridDataFactory.fillDefaults().grab(true, false).applyTo(composite);
GridLayoutFactory.fillDefaults().numColumns(2).applyTo(composite);

toolkit.createLabel(composite, "Name:", SWT.NONE);
_textName = toolkit.createText(composite, "", SWT.BORDER);

GridDataFactory.fillDefaults().grab(true, false).applyTo(_textName);
}

− Bind UI to model
private void bind() {
DataBindingContext bindingContext = new EMFDataBindingContext();
// -- Bind the Name
bindingContext.bindValue(SWTObservables.observeText(_textName, SWT.FocusOut),
EMFEditObservables.observeDetailValue(Realm.getDefault(), getEditingDomain(),
_myEObject, M2MPackage.eINSTANCE.getINamedElement_Name()), null, null);
}

Model edition
Editors

• Forms editors Model

► Result

Available in PDE Incubator:
Forms EMF editor will be used to implement new PDE editors


Model edition
Editors

• Graphical Editor: GMF Model

► Uses GMF generator to bootstrap

GMF generation
Model
Generated Customization
editor
Modified

editor

► Heavy use of GMF Runtime


Model edition
Editors

• Graphical Editor: GMF Model

► Result


Features

Editors

Model


Model validation
Validation

Model
• EMF Validation
► Extensible (needed for specific-target constraints)

► Constraints are registered using an extension point

Extension points: org.eclipse.emf.validation.*

► We use only the batch mode
public IStatus validate (EObject model, IProgressMonitor monitor) {
IBatchValidator batchValidator = ModelValidationService.getInstance()
.newValidator(EvaluationMode.BATCH);
batchValidator.setIncludeLiveConstraints(true);
batchValidator.setReportSuccesses(false);
return batchValidator.validate(model, monitor);
}


Model validation
Validation

► Integrated in a builder Model

− Transparent and automatic (on save)

− Uses Problem Markers

− Coupled with quick fixes for a better user experience

Validation decorators are based on
markers generated by the Validation builder


Features

Editors

Model

Code


Code generation
Model

• xPand Code

► Example of template

«IMPORT model»
«DEFINE file FOR SourceComponentClass»
«FILE project.name.toLowerCase() + "/" + name + ".java"-»
package «project.name.toLowerCase()»;

public class «name» extends ComponentClass {

«IF methods.select(m | m.kind.toString() == "EVENT").size > 0»
public void receiveEvent(int inputEventMethod, Object value) {
«FOREACH methods.select(m | m.kind.toString() == "EVENT") AS m-»
// TODO handle Event: " + «m.name.toUpperCase()»:
«ENDFOREACH-»
}
«ENDIF»
}
«ENDFILE»
«ENDDEFINE»


Code generation
Model

• xPand Code

► Call the xPand generator programmatically
public void generate(final EObject object, IProgressMonitor monitor) throws CoreException {
Generator generator = new Generator();

// define the metamodel used in the template
MetaModel m2mMetamodel = new EmfMetaModel(M2MPackage.eINSTANCE);
generator.addMetaModel(m2mMetamodel);
// define the template
generator.setExpand("templates::SourceComponentClass::file FOR component");

// define the output folder
Outlet outlet = new Outlet("C:/myOutput/src");
generator.addOutlet(outlet);
// configure protected regions
generator.setPrSrcPaths("C:/myOutput/src");
generator.setPrDefaultExcludes(true);
// define the EObject input
WorkflowContextDefaultImpl ctx = new WorkflowContextDefaultImpl();
ctx.set("component", object);
// run the generator
generator.invoke(ctx, new ProgressMonitorAdapter(monitor), new IssuesImpl());
}


Code generation
Model

• Integrated in a builder Code

► Transparent and automatic (on save)

► Synchronization between model and code

► Incremental generation


Features

Editors
Forms
EMF Validation GMF
Project Explorer + CNF

Model

xPand AST
Editor
CDT

Compilation Code CDT + DLTK

Navigator

TCF RSE
Communication Target Navigator


Questions?
David Sciamma
david.sciamma@anyware-tech.com

Modeling for Fun and Profit

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