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Retrieve the Epsilon Simulink preferences programatically [message #1793193]

Wed, 01 August 2018 12:27

Stuart Hutchesson

Messages: 9
Registered: September 2011

Junior Member

I am successfully running an ETL transformation from an EMF model to Simulink as an Eclipse plug-in - however I have to provide the "Library Path" and "Engine Jar Path" properties programatically at the point I load the model. I have hard-coded them in my example and it works fine.

	    StringProperties properties = new StringProperties();
	    properties.put(SimulinkModel.PROPERTY_NAME, "Simulink");
	    properties.put(SimulinkModel.PROPERTY_FILE, genFolder+modelName+".slx");
	    properties.put(SimulinkModel.PROPERTY_READONLOAD, false + "");
	    properties.put(SimulinkModel.PROPERTY_STOREONDISPOSAL,  true + "");
	    properties.put(SimulinkModel.PROPERTY_SHOW_IN_MATLAB_EDITOR,  true + "");
	    properties.put(SimulinkModel.PROPERTY_CACHED, false+"");
	    properties.put(SimulinkModel.PROPERTY_LIBRARY_PATH,"C:\\matlab\\2016b\\bin\\win64");
	    properties.put(SimulinkModel.PROPERTY_ENGINE_JAR_PATH,"C:\\matlab\\2016b\\extern\\engines\\java\\jar\\engine.jar");	    

	    try {
			simulinkModel.load(properties);
		} catch (EolModelLoadingException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

However I have now moved to a different machine where Matlab is installed on a different path, and the model load obviously fails. Rather then providing my own Preferences Dialog to store the machine configuration I would prefer to read the "Epsilon->Simulink" preference values.

I have tried the following without success :

		IEclipsePreferences preferences = ConfigurationScope.INSTANCE.getNode("org.eclipse.epsilon.common.dt");
		String val = preferences.get("engine_jar_path", "default");

Would it be possible to provide a code snippet that shows how to retrieve the preferences?

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Re: Retrieve the Epsilon Simulink preferences programatically [message #1793197 is a reply to message #1793193]

Wed, 01 August 2018 12:45

Dimitris Kolovos

Messages: 2163
Registered: July 2009
Location: York, UK

Senior Member

Hi Stuart,

The following seems to be doing the trick:

ScopedPreferenceStore store = new ScopedPreferenceStore(InstanceScope.INSTANCE, "org.eclipse.epsilon.common.dt");
String engineJarPath = store.getString("engine_jar_path");
String libraryPath = store.getString("library_path");

Cheers,
Dimitris

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