EGF Tutorial Generation Chain Benoît Langlois – Thales/EPM EGF Tutorial – Generation Chain 0.1.0 | © 2010 by Thales; made available under the EPL v1.0 Benoît Langlois – Thales/EPM
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EGF TutorialEGF TutorialGeneration Chain
Benoît Langlois – Thales/EPM
EGF Tutorial – Generation Chain 0.1.0 | © 2010 by Th ales; made available under the EPL v1.0
Benoît Langlois – Thales/EPM
Agenda
Principles
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Generation Customization
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Generation Chain Extensibility
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EGF Tutorial – Generation Chain 0.1.0 | © 2010 by Th ales; made available under the EPL v1.0
Agenda
Principles
Ser
vice
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Generation Customization
Cor
pora
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ces/
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Generation Chain Extensibility
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EGF Tutorial – Generation Chain 0.1.0 | © 2010 by Th ales; made available under the EPL v1.0
Rationale
• Objective of the Generation Chain:• Objective of the Generation Chain:� Definition, at a high level of description, of executable generations
� Abstraction: encapsulating the irrelevant technical details of
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� Abstraction: encapsulating the irrelevant technical details of generation
� Simplicity & Efficiency: Reducing the number of “clicks” (i.e. the number of actions)
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� Only providing the main generation features and next generating
• Technical principle:
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• Technical principle:� Generation features are captured in a “generation chain” file
� An EGF fcore file is produced from the generation chain: it contains
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� An EGF fcore file is produced from the generation chain: it contains the translation of the generation chain into factory components
� Next, the factory components are transparantly executed to produce the expected artifacts
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EGF Tutorial – Generation Chain 0.1.0 | © 2010 by Th ales; made available under the EPL v1.0
the expected artifacts
Levels of Generation
Generation ChainIt captures the generation steps and their featuresFile type: “generation chain”
Level 1
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File type: “generation chain”
Factory Components
InstantiationGenerated
Level 2
Designer
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They contain the logic of generationFile type: fcore
Level 2
Developer
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Result of the generationLevel 3
InstantiationExecution of the generation
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Result of the generationThe artifacts are generated
Level 3
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EGF Tutorial – Generation Chain 0.1.0 | © 2010 by Th ales; made available under the EPL v1.0
Process
1 to n ecore Models
New Generation Chain
Designer
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Generation Chain
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Adjust Generation Features
Run Generation Chain
[Fast track][Update]
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Generation Result
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EGF Tutorial – Generation Chain 0.1.0 | © 2010 by Th ales; made available under the EPL v1.0
Process
1 to n ecore Models
New Generation Chain
Developer
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Generation Chain
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Adjust Generation Features
Generate fcore file
Run Generation Chain
[Fast track][Update] [Customization track]
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Customize Factory Components
Factory Components
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Execute Factory Components
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EGF Tutorial – Generation Chain 0.1.0 | © 2010 by Th ales; made available under the EPL v1.0
Generation Result
Visualization 1/3Selection of ecore models Creation of Generation Chain
New Generation Chain
Creation of Generation Chain
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New Generation Chain For each model, setting the generation features
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Visualization 2/3
Modification of Generation Chain FeaturesModification of Generation Chain Features
Possibility to change the generation features and a dd new generation steps
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C
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Generation step and values
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Visualization 3/3
Result of Generation Chain executionResult of Generation Chain execution
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Equivalence of the generation chaininto factory components
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Result of the generation
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EGF Tutorial – Generation Chain 0.1.0 | © 2010 by Th ales; made available under the EPL v1.0
Agenda
Principles
Ser
vice
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Generation Customization
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Generation Chain Extensibility
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EGF Tutorial – Generation Chain 0.1.0 | © 2010 by Th ales; made available under the EPL v1.0
Customization with Generation Chains
Generation Chain Definition
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Instantiation
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Generation
Factories
Reuse
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Factories
Customization
Project Context
Portfolio
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Project Context
How to introduce customization with a generation ch ain-based development
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EGF Tutorial – Generation Chain 0.1.0 | © 2010 by Th ales; made available under the EPL v1.0
How to introduce customization with a generation ch ain-based development while a generation chain reuses a standard generati on stored in a portfolio?
Principles of GC customization
• Means of customization� A customization is realized with patterns which specialize the
standard generation, for instance model / edit / editor for the Emf
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standard generation, for instance model / edit / editor for the Emfgeneration
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• Incrementality� When a feature in the generation chain is changed, the fcore is
synchronized accordingly
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te synchronized accordingly� Ex: when the emf model editor feature is set to “true”, the model editor
generation is invoked, and in reverse is removed when this feature is set to “false”.
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� Protected elements:� Patterns in a Pattern Viewpoint
� Pattern substitution in the “Orchestration Parameter Container” where
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� Pattern substitution in the “Orchestration Parameter Container” where the patterns for customization replace the standard patterns
Illustration on EMF Generation
Generation Chain Definition
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InstantiationEMF Model
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Generation
Factories
Reuse
EMF Edit
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Factories
Customization
Project Context
Portfolio
EMF Editor
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Project Context
EMF Edit.custo
EMF Tests
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EGF Tutorial – Generation Chain 0.1.0 | © 2010 by Th ales; made available under the EPL v1.0
Illustration on EMF Generation
Generation Chain Definition
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InstantiationEMF Model
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Generation
Factories
Reuse
EMF Edit
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Factories
Customization
Project Context
Portfolio
EMF Editor
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Project Context
EMF Edit.custo
EMF Tests
Injection of the patterns in the
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EGF Tutorial – Generation Chain 0.1.0 | © 2010 by Th ales; made available under the EPL v1.0
Injection of the patterns in the standard generation by substitution
Example of substitutionS
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Pattern for customization
Declaration of the substitution in the orchestratio n parameters
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EGF Tutorial – Generation Chain 0.1.0 | © 2010 by Th ales; made available under the EPL v1.0
Refer to the “org.eclipse.egf.usecase.generationchai n.uc1” example
Memo for a Customization with Patterns
� Open the fcore file related to the generation chain. In the Viewpoint container, create a pattern domain which will contain the pattern libraries and patterns for customization.
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libraries and patterns for customization.
� Identify the standard patterns to extend. For their location, navigate for instance from the invoked factory component of the fcore file (e.g., EMF Edit) which contains the standard patterns.
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� Create the pattern for customization:� In order to avoid rewriting everything from scratch in the new pattern, the
pattern inherits from the standard pattern.
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pattern inherits from the standard pattern.
� Add the precondition to apply the pattern; add the “imports” defined in the pattern header method; in the method for code generation (e.g., doGenerate) add the customized code.
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doGenerate) add the customized code.
� For pattern inheritance, in the Manifest of the plug-in which contains the fcore file, add the dependencies toward the plug-in(s) which contain(s) the standard pattern(s)
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contain(s) the standard pattern(s)
Agenda
Principles
Ser
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Generation Customization
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Generation Chain Extensibility
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EGF Tutorial – Generation Chain 0.1.0 | © 2010 by Th ales; made available under the EPL v1.0
Principle of Generation Chain Extension
• Objective• Objective� Ability to extend generation chains with new types of generation chain step
� Introducing new types of generations (e.g. diagram, test generation)
• Impacts
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• Impacts� New step type in the user interface of generation chain creation
� New step type in the generation chain model
� Association of a generation to the new type of step
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� Association of a generation to the new type of step
Extension of the
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Extension of the creation UI
New type of step
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EGF Tutorial – Generation Chain 0.1.0 | © 2010 by Th ales; made available under the EPL v1.0
New type of model element
Generation Chain ExtensionS
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Generation Chain ExtensionS
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Declaration of the model extending the generation c hain model
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EGF Tutorial – Generation Chain 0.1.0 | © 2010 by Th ales; made available under the EPL v1.0
Generation Chain ExtensionS
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Factory Component used for the extension
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- The “SampleElementPattern” Java pattern declares the behavior to be applied. It invokes the production plan here.- Production Plan = Generation BehaviorHere, it just applies a simple task implemented by a
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Here, it just applies a simple task implemented by a Java Class.
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EGF Tutorial – Generation Chain 0.1.0 | © 2010 by Th ales; made available under the EPL v1.0
Generation Chain ExtensionS
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Id declaration of the pattern explained in the previous slide
Label for instance used in the creation user interface
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The sequence to declare that the pattern is applied over a
Label for instance used in the creation user interface
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Model action to be applied when a new step of this type is created
The sequence to declare that the pattern is applied over a generation chain model when the generation chain is executed
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EGF Tutorial – Generation Chain 0.1.0 | © 2010 by Th ales; made available under the EPL v1.0
Model action to be applied when a new step of this type is created
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