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How to listen to models being loaded? [message #1406934]

Mon, 11 August 2014 13:20

Thomas Wiman

Messages: 83
Registered: June 2012
Location: Stockholm , Sweden

Member

What is the proper way to, from a plug-in, listen to and act upon a model being loaded in Papyrus 1.0, e.g. opened in the Model Explorer.
I assume there is some way to register a listener on models being loaded, but I cannot find the proper way to do so by studying the Papyrus source code.

Thanks in advance,
Thomas

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Re: How to listen to models being loaded? [message #1406952 is a reply to message #1406934]

Mon, 11 August 2014 13:59

Gabriel Pascual

Messages: 31
Registered: April 2013
Location: Laval, France

Member

Hi,

I think you can look IPapyrusListener to use with the extension point:

org.eclipse.papyrus.infra.core.modellistener

Regards

Gabriel

Software Development Engineer

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Re: How to listen to models being loaded? [message #1406978 is a reply to message #1406952]

Mon, 11 August 2014 15:22

Thomas Wiman

Messages: 83
Registered: June 2012
Location: Stockholm , Sweden

Member

Thanks for the quick answer but I get no notifications on model opening/loading.

I have implemented the IPapyrusListener interface and registered it into the org.eclipse.papyrus.infra.core.modellistener extension.
It will give me a lot of notifications when things are happening in a loaded model, but NOT any notification on the actual opening/loading of the model.
If I have an empty model without any profile applications, the registered listener will not give me any notifications at all when the model is opened/loaded.

Thomas Wiman
MetaModelAgent Product Manager

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Re: How to listen to models being loaded? [message #1406985 is a reply to message #1406978]

Mon, 11 August 2014 15:44

Gabriel Pascual

Messages: 31
Registered: April 2013
Location: Laval, France

Member

My second solution is to use IModeSnippet which is defined with the extension point :

org.eclipse.papyrus.infra.core.model

To illustrate how use it, there is UmlSnippet. I think this is performed at model loading.

Regards

Gabriel

Software Development Engineer

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Re: How to listen to models being loaded? [message #1407271 is a reply to message #1406985]

Tue, 12 August 2014 08:25

Thomas Wiman

Messages: 83
Registered: June 2012
Location: Stockholm , Sweden

Member

Your second solution worked!
I am able to get hold of the model being loaded by implementing the IModelSnippet interface and using the proposed extension point.

Thanks!

/Thomas

Thomas Wiman
MetaModelAgent Product Manager

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Re: How to listen to models being loaded? [message #1409504 is a reply to message #1407271]

Mon, 18 August 2014 09:20

Camille Letavernier

Messages: 952
Registered: February 2011

Senior Member

Hi Thomas,

Startup services might be more appropriate, as you can add dependencies, especially to the IMultiDiagramEditor service.

Models/ModelSnippets will be called for each model loaded in memory, which isn't necessarily related to opening an editor. For example, when using the Model Search on the workspace, models are loaded in-memory but not opened in an editor.

So, registering a startup service (via the org.eclipse.papyrus.infra.core.services extension point) with a dependency to the editor service (org.eclipse.papyrus.infra.core.editor.IMultiDiagramEditor) is probably the most reliable solution

Regards,
Camille

Camille Letavernier

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Re: How to listen to models being loaded? [message #1410706 is a reply to message #1409504]

Thu, 21 August 2014 12:30

Thomas Wiman

Messages: 83
Registered: June 2012
Location: Stockholm , Sweden

Member

Thanks Camille,

Your solution works fine and probably even better than the previous one.

/Thomas

Thomas Wiman
MetaModelAgent Product Manager

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Re: How to listen to models being loaded? [message #1622812 is a reply to message #1410706]

Wed, 18 February 2015 19:17

Denes Harmath

Messages: 9
Registered: August 2014

Junior Member

Hi all,
can you tell me how you can get the opened ModelSet from the startup service?
Thanks in advance!

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Re: How to listen to models being loaded? [message #1623789 is a reply to message #1622812]

Thu, 19 February 2015 10:24

Camille Letavernier

Messages: 952
Registered: February 2011

Senior Member

Hi,

When you implement the IService interface in Papyrus, you have the init() method which receives the current ServicesRegistry.

The ModelSet is registered as a service in the ServicesRegistry, so you can use the following code:

private ServicesRegistry servicesRegistry;

@Override
public void init(ServicesRegistry servicesRegistry) {
	this.servicesRegistry = servicesRegistry;		
}

@Override
public void startService() throws ServiceException {
	ModelSet modelSet = servicesRegistry.getService(ModelSet.class); //Get the ModelSet service from the ServicesRegistry
	//Do something
}

Don't forget to add a dependency between your service and the ModelSet (This can be done in the service extension point)

Regards,
Camille

Camille Letavernier

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Re: How to listen to models being loaded? [message #1691610 is a reply to message #1623789]

Wed, 08 April 2015 13:07

Denes Harmath

Messages: 9
Registered: August 2014

Junior Member

Thanks, Camille, this works great!
For the record, my plugin.xml looks like this:

<extension
         point="org.eclipse.papyrus.infra.core.service">
      <service
            classname="service.Service1"
            priority="1"
            startKind="startup">
         <dependsOn
               serviceKeyRef="org.eclipse.papyrus.infra.core.editor.IMultiDiagramEditor"></dependsOn>
         <dependsOn
               serviceKeyRef="org.eclipse.papyrus.infra.core.resource.ModelSet">
         </dependsOn>
      </service>
   </extension>

And the Service1 class:

	public void startService() throws ServiceException {
		ModelSet modelSet = servicesRegistry.getService(ModelSet.class);
		IMultiDiagramEditor diagramEditor = servicesRegistry.getService(IMultiDiagramEditor.class);
        }

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