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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: 7655
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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Re: How to generate UMLPackage object from .uml file? [message #1850938 is a reply to message #1850932]

Wed, 23 March 2022 01:11

qiaosen liu

Messages: 9
Registered: March 2022

Junior Member

Thank you, your answer is very helpful for me, where can I find UML tutorials?

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Re: How to generate UMLPackage object from .uml file? [message #1850945 is a reply to message #1850938]

Wed, 23 March 2022 07:23

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi

Googling "Eclipse UML tutorial" gives many interesting hits but no onger the ones I meant: https://help.eclipse.org/latest/nav/85_0

https://gitlab.eclipse.org/eclipsefdn/helpdesk/-/issues/1037 raised

Regards

Ed Willink

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Re: How to generate UMLPackage object from .uml file? [message #1860773 is a reply to message #1850945]

Sat, 02 September 2023 08:19

Firstname Lastname

Messages: 7
Registered: July 2023

Junior Member

Hi,

somehow your link to the "help" does point to vagrant.

Probably useful for future readers is: https://wiki.eclipse.org/MDT/UML2/Getting_Started_with_UML2

Furthermore, there is a Project that provides basic functionality with UML2. After one has papyrus installed, you can get this by following the steps "New" > "Other..." - now a new window should open whith a lot of different options to choose from > In the search Bar type: "Getting Started with UML2".

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