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UML2C where to start [message #1695346]

Wed, 13 May 2015 15:59

Jonathan Marino

Messages: 8
Registered: May 2015

Junior Member

Hello, I want to make an UML2C code generator, I don´t know: first: to use xpand or acceleo. Second: where to start, examples, previous works, etc.
can any one help me?

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Re: UML2C where to start [message #1695356 is a reply to message #1695346]

Wed, 13 May 2015 17:16

Christian Dietrich

Messages: 14067
Registered: July 2009

Senior Member

Hi,

the first question i cannot answer, it is a matter of taste, features, maintenance etc

to the second question: here is a simple example template and workflow attached

src/workflow/workflow.mwe

<workflow>
	
	<bean class="org.eclipse.xtend.typesystem.uml2.Setup" />
	
	<bean class="org.eclipse.emf.mwe.utils.StandaloneSetup" platformUri=".." />
	
	<component class="org.eclipse.emf.mwe.utils.Reader">
		<uri value="platform:/resource/xpand.uml.sample/src/model/test.uml" />
		<modelSlot value="model" />
	</component>
	
	<component class="org.eclipse.emf.mwe.utils.DirectoryCleaner">
		<directory value="src-gen" />
	</component>
	
	
	<component class="org.eclipse.xpand2.Generator">
		<metaModel class="org.eclipse.xtend.typesystem.uml2.UML2MetaModel" />
		<expand value="template::Template::main FOR model" />
		<outlet path="src-gen" >
			<postprocessor class="org.eclipse.xpand2.output.JavaBeautifier" />
		</outlet>
	</component>
	

</workflow>

src/template/Template.xpt

«EXTENSION template::GeneratorExtensions»

«DEFINE main FOR uml::Model»
	«EXPAND main FOREACH ownedElement»
«ENDDEFINE»

«DEFINE main FOR uml::Package»
	«EXPAND main FOREACH ownedElement»
«ENDDEFINE»

«DEFINE main FOR uml::Class»
«FILE getFQPN().replaceAll("\\.","/")+"/"+name+".java"»
package «getFQPN()»;
public class «name» {

}
«ENDFILE»
«ENDDEFINE»

«DEFINE main FOR uml::Element»
«ENDDEFINE»

src/template/GeneratorExtensions.ext

String getFQPN(uml::Class c) : c.package.getFQN();
String getFQN(uml::Package p) : p.nestingPackage.getFQN() == "" ? p.name : (p.nestingPackage.getFQN() + "." + p.name);
String getFQN(uml::Model m) : "";

Need professional support for Xtext, Xpand, EMF?
Go to: https://www.itemis.com/en/it-services/methods-and-tools/xtext
Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: UML2C where to start [message #1695358 is a reply to message #1695356]

Wed, 13 May 2015 17:21

Christian Dietrich

Messages: 14067
Registered: July 2009

Senior Member

P.S. if you want to use a uml profile types you need a slightly different setup

<workflow>
	
	<bean class="org.eclipse.xtend.typesystem.uml2.Setup" />
	
	<bean class="org.eclipse.emf.mwe.utils.StandaloneSetup" platformUri=".." />
	
	<component class="org.eclipse.emf.mwe.utils.Reader">
		<uri value="platform:/resource/xpand.uml.profile.sample/src/model/test.uml" />
		<modelSlot value="model" />
	</component>
	
	<component class="org.eclipse.emf.mwe.utils.DirectoryCleaner">
		<directory value="src-gen" />
	</component>
	
	
	<component class="org.eclipse.xpand2.Generator">
		<metaModel class="org.eclipse.xtend.typesystem.uml2.profile.ProfileMetaModel">
			<profile value="platform:/resource/xpand.uml.profile.sample/src/model/test.profile.uml" />
		</metaModel>
		<metaModel class="org.eclipse.xtend.typesystem.uml2.UML2MetaModel" />
		<expand value="template::Template::main FOR model" />
		<outlet path="src-gen" >
			<postprocessor class="org.eclipse.xpand2.output.JavaBeautifier" />
		</outlet>
	</component>
	

</workflow>

«DEFINE main FOR test::Bean»
«FILE getFQPN().replaceAll("\\.","/")+"/"+name+".java"»
package «getFQPN()»;
public class «name» {

}
«ENDFILE»
«ENDDEFINE»

(test.Bean is a Stereotype in the Profile)

Need professional support for Xtext, Xpand, EMF?
Go to: https://www.itemis.com/en/it-services/methods-and-tools/xtext
Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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