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How to generate UMLPackage object from .uml file? [message #1850929]

Tue, 22 March 2022 15:00

qiaosen liu

Messages: 9
Registered: March 2022

Junior Member

I want to read in .UML files and generate UMLPackage (from org.eclipse.uml2.uml) objects so that I can manipulate these model elements (eg lifelines), how would I go about doing this?

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Re: How to generate UMLPackage object from .uml file? [message #1850931 is a reply to message #1850929]

Tue, 22 March 2022 15:03

qiaosen liu

Messages: 9
Registered: March 2022

Junior Member

I took some approaches as follows:

I want to create a UMLPackage object using ResourceSet so that I can parse the UML model. However, I can only get the object of EPackage.

code show as below:

URI uri = URI.createURI("src/model/test.uml");
ResourceSet set = new ResourceSetImpl();
set.getPackageRegistry().put(UMLPackage.eNS_URI, UMLPackage.eINSTANCE);
set.getResourceFactoryRegistry().getExtensionToFactoryMap()
.put(UMLResource.FILE_EXTENSION, UMLResource.Factory.INSTANCE);
Resource.Factory.Registry.INSTANCE.getExtensionToFactoryMap()
.put(UMLResource.FILE_EXTENSION, UMLResource.Factory.INSTANCE);
Resource res = set.getResource(uri, true);
EObject root=res.getContents().get(0);
UMLPackage umlPackage=null;
for(EObject e:root.eContents()){
if("Interaction".equals(e.eClass().getName())){
umlPackage=(UMLPackage) e.eClass().getEPackage();
}
}
if(null!=umlPackage){
System.out.println(umlPackage.getLifeline());
}

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Re: How to generate UMLPackage object from .uml file? [message #1850932 is a reply to message #1850931]

Tue, 22 March 2022 15:33

Ed Willink

Messages: 7488
Registered: July 2009

Senior Member

Hi

I suggest that you follow the UML tutorials where you should find UMLResourcesUtil.init that helps avoid numerous mistakes that newbies struggle with.

You might find that UMLPackage.eINSTANCE is what you want.

UMLPackage.Literals.INTERACTION might also interest you.

Regards

Ed Willink

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