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Loading Representation File(s) [message #1781806]

Tue, 13 February 2018 07:13

Eclipse User

Hi,
I want to generate documentation for my Capella project using my own code. I created a plugin project which loads the Capella semantic File (.melodymodeller). The fact is I only have access to elements of the model with no mapping information to relate the element to a diagram. For the above mentioned reason I need to load the representation file.
I am using the following code to create Session:

name=projectName; // value is coming from UI
	airdFile=projectName+".aird";
	melodyFile=projectName+".melodymodeller";
	metaFile=projectName+".afm";
	Object capellaModelObj=loadModel("/"+projectName+"/"+melodyFile); // this method loads semantic file correctly
	ProjectImpl capellaProject=(ProjectImpl) capellaModelObj;
	System.out.println("[DocGenerator] Melody File Loaded for: "+ capellaProject.getName());
        Session session = SessionManager.INSTANCE.getSession(URI.createURI(projectName+"/"+airdFile), new NullProgressMonitor());
	DAnalysis root=(DAnalysis)session.getSessionResource().getContents().get(0);
	DView dView = root.getOwnedViews().get(0);

The code above returns a session but the following line causes NullPointerException:

DView dView = root.getOwnedViews().get(0);

I debugged the code and found that the session object returns a resource with empty DAnalysis Object. I have attached my representation and semantic files to the post.

Do anyone know how can I have a resource with complete representation data?

Attachment: ClockRadio.aird
(Size: 3.78MB, Downloaded 225 times)
Attachment: ClockRadio.melodymodeller
(Size: 235.92KB, Downloaded 209 times)
Attachment: ClockRadio.afm
(Size: 0.34KB, Downloaded 163 times)

Re: Loading Representation File(s) [message #1781821 is a reply to message #1781806]

Tue, 13 February 2018 10:05

Eclipse User

Hi Muhammad,

You should load only the Sirius session, it will load all the necessaray resources (semantic, representation, ... ) in the same resource set (and in the same way than Capella if you open the aird by double clic or with the contextual menu)

After calling
Session session = SessionManager.INSTANCE.getSession(URI.createURI(projectName+"/"+airdFile), new NullProgressMonitor());

You need to call session.open()

Note that you do not need to call your loadModel method (it would load the semantic model in your own resourceSet without any reference to/from the session)

Note also that if your Capella project is open, SessionManager.INSTANCE.getSession() will return the loaded session, and you will manipulate the same object than the workbench. In this case, calling session.open will do nothing, but you should avoid to close it at the end of your generation to keep the session in the same state than before your action.

Regards

Re: Loading Representation File(s) [message #1781845 is a reply to message #1781821]

Tue, 13 February 2018 15:19

Eclipse User

Hey Thank you so much for your reply. I did what you said and still I have empty views. As you can see in my debugger (Attached image).

index.php/fa/32087/0/

Here is the resultant code.

name=projectName;
	airdFile=projectName+".aird";
	melodyFile=projectName+".melodymodeller";
	metaFile=projectName+".afm";
	//Object capellaModelObj=loadModel("/"+projectName+"/"+melodyFile);
	//ProjectImpl capellaProject=(ProjectImpl) capellaModelObj;
	//System.out.println("[TestGenerator] Melody File Loaded for: "+ capellaProject.getName());
	Session session = SessionManager.INSTANCE.getSession(URI.createURI(projectName+"/"+airdFile), new NullProgressMonitor());
	session.open(new NullProgressMonitor());
	DAnalysis root=(DAnalysis)session.getSessionResource().getContents().get(0);
	DView dView = root.getOwnedViews().get(0);

Attachment: debugger.png
(Size: 152.18KB, Downloaded 691 times)

Re: Loading Representation File(s) [message #1781900 is a reply to message #1781845]

Wed, 14 February 2018 07:32

Eclipse User

Hi,

Note that you will have a DView for each activated Viewpoint and then each DView will contain a DRepresentation or a DRepresentationDescriptor regarding the Sirius version used to create the aird.

Note that the current behavior of the SessionFactory is to create the aird file if the uri you pass to the session manager does not exits. As the aird your provide is not empty and as in debug you see a DAnalysis with an empty DView collection, it seems that the uri you give to the session manager is not the one you expect : you should check the construction of the aird file uri. You should look at org.eclipse.emf.common.util.URI.createPlatformResourceURI(String, boolean) instead of createURI.

For example, with file an org.eclipse.core.resources.IFile:

String path = file.getFullPath().toOSString();
URI uri = URI.createPlatformResourceURI(path, true);

Regards

Re: Loading Representation File(s) [message #1781950 is a reply to message #1781900]

Wed, 14 February 2018 23:02

Eclipse User

Thanks a lot, it worked. The URI I was passing to the SessionManager was not a platform URI.

Regards,

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