Benoît Langlois / Thales Global ServicesModèle presentation_epm version 1.0 Explicit declaration of generation data organised by viewpoints A Factory Component can be edited and

www.thalesgroup.com

Benoît Langlois / Thales Global Services

Eclipse (EMFT) EGF | © 2011 by Thales; made availab le under the EPL v1.0

Start Up

2 /2 /

� Introduction

� EGF Architecture

� Concepts & Practice

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� EGF Portfolios


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� IntroductionIntroductionIntroductionIntroduction



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� EGF Portfolios


4 /4 / Generative Software

What target-platform?

Generation reusability?

Generation orchestration?

Generation data, which ones, where?

One-click generation solution?

Combining [model|text|dsl]-to-

How to develop & test?

Generation customization?

Generation scope?

Best practices, guidance?

Generation workflow?

Executability? Distribution?

Performance, scalability?

Variability? Product lines?

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Update strategy of the produced artifacts?

Combining [model|text|dsl]-to-[Model|text|dsl]?

Merging Generation?

Integration of a new language?

Dealing with generation complexityIssue

An integrated and extensible software factory frameworkProposedsolution

Software IndustrializationPurpose

Multiplicity of languages and engines?


5 /5 / What is EGF?

� EGF (Eclipse Generation Factories) is an Eclipse op en source component project in incubation under the EMFT pro ject

� Purpose: providing a model-based generation framewo rk

� Objectives:

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�Supporting complex, large-scale and customizable generations

�Promoting generation portfolios in order to capitalize on generation solutions

�Providing an extensible generation structure


6 /6 / General info about EGF

Project page: http://www.eclipse.org/egfWiki: http://wiki.eclipse.org/EGF

Download: by update site from Indigo

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Download: by update site from Indigoor by update site from Amalgam

7 /7 /

Top

&

Su

b

Pro

ject

s

Ho

st:

Infr

ast

ruct

ure

,

Po

lici

es,

Pro

cess

Project Organization

EGFCore ProjectEPL License

Additional PortfoliosNot EPL License

Project Project

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Co

mm

un

ity

Ho

st:

Infr

ast

ruct

ure

,

Po

lici

es,

Pro

cess

Contributor

Project Project

Committer ContributorOwnerCommitter


8 /8 /

� Introduction

� EGF ArchitectureEGF ArchitectureEGF ArchitectureEGF Architecture

� Architecture

� Some issues addressed by EGF


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� EGF Portfolios


9 /9 / EGF Architecture

EGF

EGF Portfolio

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EGF

Engine Extensions

EGF Engine



EGF

EGF Portfolio

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EGF

Engine Extensions

EGF EngineProvides basic metamodels and behaviors

to automate software production

EGF Metamodel

Basic behaviors,

dynamic execution

Factory component, task

Pattern



EGF

EGF Portfolio

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EGF

Engine Extensions

EGF Engine

Meets specific software production needs

Language & tools interoperability

New types of generation formalisms



EGF

EGF Portfolio

Use cases to understand

production issues

Examples to mimic and start up

Practice

(EGF Wiki) Utilities

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EGF

Engine Extensions

EGF Engine


Meets specific software production needs

Provides basic metamodels and behaviors

to automate software production


EGF

EGF Portfolio

Portfolio

Simple to off-the-shelf software

factories

Portfolio = generation topic

Meeting specific generation topics

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EGF

Engine Extensions

EGF Engine

Enhancement of the EMF Generation

Build modeler and generator

Examples of Portfolios provided with EGF


14 /14 /

� Introduction

� EGF ArchitectureEGF ArchitectureEGF ArchitectureEGF Architecture

� Architecture

� Some issues addressed by EGF


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� EGF Portfolios


15 /15 / Generation Composition, Language and Tool Interoperability

Language Task

0 1 0 1

Factory Component Production Plan(Activity workflow)

Data exchange between heterogeneous activities

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Factory Component

Tool Task

0 1 0 1 ATLJet

Composite Activity Invocation

heterogeneous activities

Activity Workflow with Java and Ruby: http://vimeo.com/15705526Eclipse (EMFT) EGF | © 2011 by Thales; made availab le under the EPL v1.0

16 /16 / Code Generation Families

Enterprise Portfolio

Example

Code/textual generationfor my organization

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Several levels of Customization

Team Portfolio


Specific generationfor my project

extends

17 /17 / Code Generation Families

Standard Portfolio

customization

Example

EMF Generation

EMF Generation

extends

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Team Portfolio


EMF Generationfor my organization

EMF Generationfor my application

extends

18 /18 / Generation Development in Multi-User Mode

Factories DevelopmentFactories Development

Build Deployment

Architecture & DesignAnalysis

Needs Validation

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0 1 0 1

Project MemberCore Team Member


19 /19 /

De

ve

lop

me

nt

Generation Activity Development

Software Factory Engineering

Factory Component Pattern

Assembly & Orchestration

0 1 0 1

Language Task

0 1 0 1

Tool Task

0 1 0 1

Use

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Off-The-Shelf Factories Customization

Factories

Packaging

Project Adaptation

Re

use

Portfolio

Reuse

Management


20 /20 / Software Factory Engineering

General Architecture of EGF

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Example of EGF Factory

Development & Reuse Process with EGF


21 /21 /

� Introduction


� Concepts & Concepts & Concepts & Concepts & PracticePracticePracticePractice

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� EGF Portfolios


22 /22 / Installation of EGF

Installation by update site

� Eclipse Update site

� Update site from Amalgam

� [Eclipse] Help / Install Modeling Components / EGF

Download EGF materials

� Download EGF update site, dropins, examples

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� Download EGF update site, dropins, examples

� Location: http://wiki.eclipse.org/EGF_Installation


23 /23 / Examples and Portfolio

Installation of the Examples

� Install the examples File/New/Example…/EGF

Presentation of the EGF Portfolios

� http://wiki.eclipse.org/EGF/Portfolio

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24 /24 /

� Introduction



� Generation Chain

Activity

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� Activity

� Factory Component

� Task

� Pattern

� EGF Portfolios


25 /25 / Types of Generation Units in EGF

Factory Component

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Portfolio

Capitalization on a

specific generation topic

Factory Component

Composite generation unit

with an activity workflow

Task

Leaf generation unit

written in a language (e.g.,

Java, Ruby)

EGF Pattern

- Description of

systematic behavior

- For definition of

code generation

families

Generation Chain

High generation view to

organize complex

generations


26 /26 /

� Introduction




Activity

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� Activity


� Task

� Pattern

� EGF Portfolios


27 /27 / Generation Chain - Objectives

Objectives:

� Definition, at a high level of description, of exec utable generations

� Abstraction: encapsulating the irrelevant technical details of generation

� Simplicity & Efficiency: Reducing the number of “cli cks” (i.e. the number of actions)

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� Only providing the main generation features and next generating

28 /28 / Generation Chain - Principles

Technical principles:

� Generation features are captured in a “generation ch ain” file

� An EGF fcore file is produced from the generation c hain: it contains the translation of the generation chain in to factory components

� Next, the factory components are transparently exec uted to produce the expected artifacts

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� It is possible to add customization later a generati on with generation chains at the factory component level

29 /29 / Instantiation & Customization of Generation Chains

Generation

Generation Chain Definition

Instantiation

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Factories

Customization

Project Context

Portfolio

Reuse

30 /30 / [Practice] Hands On…

Links:

Video: http://vimeo.com/29472598

For more explanations:

Generation Chain Tutorial http://wiki.eclipse.org/EGF_Tutorial_and_Use_Cases

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Exercice:1. Select ecore models

2. File/New/Other…/[EGF] Generation Chain Model

3. Set the generation parameters

4. Right click on the first Generation Chain node / Run Generation Chain

5. After execution, open the fcore file in a created plug-in in order to understand how the generation is realized


31 /31 /

� Introduction




Activity

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� Activity


� Task

� Pattern

� EGF Portfolios


32 /32 / Activity – Definition

An activity is the abstract class of executable EGF generation units

� Factory component and Task are activities

Activity storage

� Activities are stored in fcore files

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� Activities are stored in fcore files

� The same fcore file contains one to several activit ies

Activity properties

� Contract declaration

� Ability to be invoked and to execute a generation a ction


33 /33 / Concepts

0-1 containerContract Container

Contractname

mode (in,out,InOut)mandatory

0-* contract

TaskFactory Component

Activity

execute()

name0-* activity

fcore filename

location

execute()

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mandatory

Type Instancevalue

0-1 value

Type

1 type


34 /34 /

� Introduction




Activity

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� Activity


� Task

� Pattern

� EGF Portfolios


35 /35 / Factory Component

� Unit of generation with a clear objective of genera tion

� Unit of generation with a clear contract

� Assembly of factory components

� Delegation to other activities

� Creation of heterogeneous and complex generations

� Generation workflow located in a production plan

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Generation workflow located in a production plan

� Explicit declaration of generation data organised b y viewpoints

� A Factory Component can be edited and executed in t he same Eclipse session


36 /36 / Factory Component Structure

Factory Component

Viewpoint container

== Contract container

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Production Plan



Factory Component

Viewpoint container


= Contract

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Viewpoint container

Production Plan

� Contract: Factory component parameter

� A contract has a type, a passing mode (In/Out/In_Out), a default value or not, is mandatory or optional



Factory Component

Viewpoint container


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Production Plan

� Viewpoint: area to declare concerns of generation data

� Examples of viewpoint:

� Available today: domain declaration, pattern

� Candidates: licensing, feature modelEclipse (EMFT) EGF | © 2011 by Thales; made availab le under the EPL v1.0


Factory Component

Viewpoint container


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Production Plan

� Production Plan : workflow to describe generation steps – Sequential today


40 /40 / Activity and Production Plan

Activity

Factory Component

Task

invocation * ContractContainer

Contract

*

0-1

contract

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Production Plan

0-1

Activity Invocation

*

Invocation Contract*

contract


41 /41 / In/Output relationships – Example

Quantity’s Properties

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Amount’s Properties


42 /42 /

� Introduction




Activity

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� Activity


� Task

� Pattern

� EGF Portfolios


43 /43 / Task – Definition

A task is an atomic generation unit

� A task enables to execute code in a language

� Examples of Tasks: Java Task, Ruby Task, Ant Task

Task implementation:

� An implementation is associated to a task

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� Example: a JavaTask is implemented by a Java class ( which implements ITaskProduction)

Java Task Java Class1

implementation



Links:

[Video] Video: Activity Creation: http://vimeo.com/15639796

Examples:

[Eclipse] Help Contents! / EGF / Tutorials / Factory Component –First Steps

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Exercices:

EGF Example – [Plug-in] org.eclipse.egf.usecase.fc.uc1 plugin, for definition of Factory Component & Task


45 /45 /

� Introduction




Activity

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� Activity


� Task

� Pattern

� EGF Portfolios


46 /46 / Pattern – Definition

Definition

� A pattern is a solution to a recurrent generation p roblem

Purpose

� Applying a systematic behavior onto a resource

� Clearly dissociating the specification (external vi ew) from the implementation (internal view) of the behavior

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implementation (internal view) of the behavior

� Reusing and customizing a pattern in different conte xts

� Supporting multilingual patterns in order to apply the best programming language to a situation, and then suppo rting multi-paradigm (M2T, M2M, T2M, T2T)

� Java and Jet are the two first languages supported today


47 /47 /

� Introduction




Activity

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� Activity


� Task

� Pattern

� Pattern Structure

� EGF Portfolios


48 /48 / Pattern Structure – Specification Elements

Super-Pattern

delegation

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Pattern PatternTypedelegation

Language

0..n parameter

1 nature

� Parameter : Object type of a query record from a query applied over a resource (e.g., a class from an ecore model, a file of a file directory)

� Nature: Language used for the pattern implementation (e.g., Java, Jet for model-to-text)



EClassifierGen

EStructural delegation

Example

ECoreResource

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EClass GenEStructural

Feature Gen

EClassdelegation

Jet

parameter

nature

� The EClassGen pattern is applied onto a Ecore resource

� Objects selected on the ecore resource: EClass instances

� It specializes the EClassifierGen pattern

� It applies a model-to-text generation in Jet

� Its also applies a generation on its features by delegation to the EStructuralFeatureGen pattern


Super-Pattern

delegation

Type 0..n variable

Constraint0..1 preCondition

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Pattern PatternTypedelegation

Language

0..n parameter

1 nature

� preCondition/Constraint: constraint to be verified before application

� variable/Type: local variable declaration for the pattern implementation


51 /51 / Pattern Structure – Specification View

Super-pattern

Pattern Language

Query Parameter

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52 /52 / Pattern Structure – Implementation View

Methods which implement the patternThey conform to the pattern language Order to execute the methods

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� header: typically used for the Jet header

� init : method for pattern initialization (e.g., variable initialization)

� A method editor allows editing pattern methods

53 /53 /

� Introduction




Activity

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� Activity


� Task

� Pattern


� Pattern Execution

� EGF Portfolios


54 /54 / Pattern Execution – Big Picture

For each pattern, query over a resource, e.g. Model

PatternStrategy

Control

ResourceProcessing

List of patterns to be appliedFor pattern execution, use of the

Way to apply patterns and a resource together

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over a resource, e.g. Model

Optional - Pattern reporter for the final rendering

For pattern execution, use of the language engine matching the pattern language, e.g. Jet, Java

View

Result

Result


55 /55 / Pattern Execution – Big Picture

For each pattern, query over a resource, e.g. Model

PatternStrategy

Control

ResourceProcessing

Way to apply patterns and a resource together

Example of strategy:

Strategy name: Model-driven StrategyResource type: ecore modelAlgorithm: for each model element (in-depth navigation), apply patterns matching the query parameters

List of patterns to be appliedFor pattern execution, use of the

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over a resource, e.g. Model

Optional - Pattern reporter for the final rendering

View

Result

Result


For pattern execution, use of the language engine matching the pattern language, e.g. Jet, Java

56 /56 / Pattern Strategy

Definition: Way to apply patterns against a resource

Examples of strategies:

� Model-driven pattern strategy : in-depth navigation over a model, and for each model element, applying a set of patterns

� Pattern-driven strategy : for each pattern, applying the pattern for each model element

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each model element

� [Data type]-driven strategy : generalization of the approach; instead of model, it could be any type of resource (e.g., file directory)

Strategy parameters:

� Resource visitor : When navigating over a resource, the visitor function specifies how to continue this navigation. Example: considering the sub-classes of the current resource instance.


57 /57 /

� Introduction




Activity

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� Activity


� Task

� Pattern


� Pattern Execution

� Pattern Relationships

� EGF PortfoliosEclipse (EMFT) EGF | © 2011 by Thales; made availab le under the EPL v1.0

58 /58 / Pattern Relationships – Introduction

Patterns can be related together (e.g., pattern inheritance, pattern call)

The next slides present the different kinds of pattern relationships

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59 /59 / Pattern Relationships

Pattern Inheritance

Pattern Delegation Pattern Injection Pattern Callback

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Pattern Delegation Pattern Injection Pattern Callback

Pattern Substitution

substitutes

delegates injects

Pattern Merge

merges

Pattern Comparison


60 /60 / Pattern Inheritance

Pattern inheritance Case 1. Reuse of super-pattern methods

Same mechanism than Class inheritanceSelection of methods from the super-pattern hierarchy

Hello

- sayHello- finish

Example

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Hello World

- body

Orchestration of HelloWorld


61 /61 / Pattern Inheritance

Case 2. Reuse of super-pattern orchestration

Reuse of method and orchestration defined in the super-patternThis abstracts the super-pattern orchestrationThis avoids rewriting pattern orchestrationJust adding the methods of the current pattern

Pattern inheritance

Example

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62 /62 / Pattern Delegation

Case. For Problem decomposition & Reuse of pattern

- The same pattern is reused in different pattern contexts- The orchestration of the called pattern is applied- The Pattern caller provides parameter values to the called pattern- The parameter values are statically declared at the pattern definition

Hello

WorldHello

FriendsExample 1

Pattern delegation

delegates

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Display EAttribute

Display Annotations

Display EClass

Example 2


63 /63 / Multilingual Call

Case. Pattern delegation when implementation langua ges are different

This corresponds to a Pattern Delegation where Pattern natures are different. For instance, a Pattern with a Jet nature calls a Pattern with a Java nature in order to differently process the same resource.It is impossible to have different natures in the same Pattern inheritance hierarchy.

EClass Example

Pattern delegation

delegates

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Measure EClass Quality

EClass Report


64 /64 / Pattern Injection

Case. Reuse of pattern with a dynamic resolution of the injected context

- A Pattern injection corresponds to a Pattern Delegation, but- The parameter values are dynamically set at pattern execution

Example

Pattern injection

injects

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In this example, the “setupVariable” method sets the injection context


65 /65 / Pattern Callback

Case 1. Applying a Java call

The callback indicates where the callback on a Java Class is applied

Pattern orchestration

Example

Pattern Callback

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Specification of the Java Class in the production plan


66 /66 / Pattern Callback

Case 2. Combination with the Pattern Strategy

A strategy determines how to apply patterns and how to navigate over a resource. In an orchestration, a callback is the moment before and after a cycle of pattern application, and allows to discriminate the methods to apply before and after it.

Scenario:The following generation result can be realized with a callback.- The model-driven strategy navigates over the model

Example

Pattern Callback

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- The model-driven strategy navigates over the model- There is a pattern for each kind of model element with the following pattern orchestrationA generation action is realized before (open) and after (close) the callback.

<EPackage name=“P”><EClass name=“C1”>

<EAttribute = “A1”>…

</EAttribute = “A1”></EClass name=“C1”>

</EPackage name=“P”>

Generation result


67 /67 / Pattern Substitution

Case. Customization of a pattern-based generation

- A substitution replaces a pattern by a list of patterns- This list can be empty (for annihilating a pattern), another pattern, or a list of other patterns (for replacing one pattern by several)- This mechanism enables to adapt a generation to a specific context- It is used for definition of families of code generation with patterns

Pattern substitution

substitutes

For deeper understanding

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[Tutorial] http://wiki.eclipse.org/EGF_Tutorial_and_Use_Cases#EGF_Patterns


68 /68 / Pattern Merge

Case. Combination of pattern lists

- Two patterns lists are merged into one list- Examples: for customization, merging a local substitution with a pattern list in parameter of factory component


Pattern Merge

merges

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EGF Example – [Plug-in] org.eclipse.egf.usecase.emf.uc3


69 /69 / Pattern Comparison

Case. Used during pattern edition – Face pattern evo lution when pattern-based generation scales up

- Comparison of patterns in a hierarchy or of cousin patterns

Scenario:Comparison of super- and child-patterns in the same or different pattern libraries. Below, comparison of “body” methods of a ChildPattern and its SuperPattern.Possibility of live edition when editing pattern comparison.

Pattern Comparison

Example

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Possibility of live edition when editing pattern comparison.


Links:

[Video] Pattern Creation: http://vimeo.com/15664081

Examples:

[Eclipse] Help Contents! / EGF / Tutorials / Pattern – First Steps

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Exercices:

EGF Example – [Plug-in] org.eclipse.egf.usecase.pattern.uc1 and org.eclipse.egf.usecase.pattern.uc2


71 /71 /

� Introduction



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� EGF EGF EGF EGF PortfoliosPortfoliosPortfoliosPortfolios

� Enhancement of the EMF Generation

� Build Chain Portfolio


72 /72 /

� Introduction



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73 /73 / EMF Generation – Levels of Maturity

Generation as-is

Customization

Reusability

Product Lines

EMF GenerationStandard

EMF GenerationGeneration Chain

Dimension

EMF GenerationFactory Component

EMF GenerationPatterns

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Silo

Level 1

Integration

Level 2

Component

Level 3

Capability

Level 4

CompositeCapability

Level 5

Maturity Level


74 /74 / Portfolio #1 – EMF Generations Layers

Generation Chain

Graphical

Representation

Textual

Representation

Abstract Syntax

Concrete Syntax[Other Form of]

Representation

Includes the related concerns to the EMF

Generation (e.g., Java Doc)

DSL

De

sig

n

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Abstraction of

GenModel

Projection

CustomizationGenerated

EMF Code

Execution

Imp

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75 /75 / Portfolio #1 – EMF Generations Layers

Generation Chain

Graphical

Representation

Textual

Representation

Abstract Syntax

Concrete Syntax[Other Form of]

Representation

Includes the related concerns to the EMF

Generation (e.g., Java Doc)

DSL

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Abstraction of

GenModel

Projection

CustomizationGenerated

EMF Code

Execution

Imp

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In E

clip

se


76 /76 / Portfolio #1 – Enhancement of EMF Generation

EMF

GenerationReverse

EMF Generation Factories

into patterns

Standard Portfolio

customization


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Generation

EMF

GenerationTeam Working

into patterns


Team Portfolio



Exercices:

EGF Example – org.eclipse.egf.usecase.emf.uc1, org.eclipse.egf.usecase.emf.uc2 and org.eclipse.egf.usecase.emf.uc3

Download access: http://wiki.eclipse.org/EGF_Tutorial_and_Use_Cases#Enhanced_EMF_

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http://wiki.eclipse.org/EGF_Tutorial_and_Use_Cases#Enhanced_EMF_Generation


78 /78 /

� Introduction



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79 /79 / Portfolio #2 – Build Chain Editor & Generator

Objective of the Build Portfolio provided by EGF:

� Facilitating the definition of build chain:

1. A build editor describes a build chain

2. A generator targets a build platform, here Hudson and

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2. A generator targets a build platform, here Hudson and Buckminster

3. Use of the build chain


80 /80 / Portfolio #2 – Build Chain Editor & Generator

Build Model Definition

Build Script Generation

BuildAutomation

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81 /81 / Portfolio #2 – Build Chain Editor & Generator – Nomenclature

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Links:

[Video] Build Chain Creation: http://vimeo.com/22033124

Examples:

[Eclipse] http://wiki.eclipse.org/EGF_Build_Portfolio

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Exercices:

EGF Example – [Plug-in] org.eclipse.egf.portfolio.eclipse.build.examples


83 /83 / General info about EGF

Project page: http://www.eclipse.org/egfWiki: http://wiki.eclipse.org/EGFBlog: http://blanglois.blogspot.com/

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Blog: http://blanglois.blogspot.com/Twitter: @LangloisBenoit

Documents

Benoît Langlois / Thales Global ServicesModèle presentation_epm version 1.0 Explicit declaration of generation data organised by viewpoints A Factory Component can be edited and