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viatra / massif

Massif is a Matlab Simulink Integration Framework for Eclipse
https://viatra.github.io/massif/
Eclipse Public License 1.0
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Exception Occured when programmaticallly importing new model #201

Closed sopopoola closed 4 years ago

sopopoola commented 4 years ago

I tried to follow your developer guide here - https://github.com/viatra/massif/wiki/Developer-Guide- but it seems oomph has been slightly updated (e.g. I could not find oomph.exe in the installer file). Anyway, I tried to programmatically import a model from my Eclipse following the Java example provided here - https://viatra.github.io/massif/user/api_usage_example.html. I get the following exception. hu.bme.mit.massif.communication.datatype.CellMatlabData cannot be cast to hu.bme.mit.massif.communication.datatype.Handle

I also used the mdl file provided in the example, so I don't know what is wrong. I have Matlab R2019b installed. I am using windows , Eclipse platform version=4.11.0

here is a snippet of my code: public static void main(String[] args) { // TODO Auto-generated method stub ICommandEvaluator commandEvaluator; MatlabCommandFactory factory = null; try { //CLIInitializationUtil.setupEnvironment(); setupHeadlessEnvironment(); //SimulinkMassifHandler simulinkMassifHandler = new SimulinkMassifHandler(matlabPath);

        commandEvaluator = new CommandEvaluatorImpl(new MatlabClient("127.0.0.1", 1098, "MatlabModelProviderr2019b5452"));
        factory = new MatlabCommandFactory(commandEvaluator);

        String modelPath= "C:/Users/student/Desktop/matlab/";
        MatlabCommand addModelPath = factory.addPath();
        addModelPath.addParam(modelPath);
        addModelPath.execute();
        ModelObject model = new ModelObject("sldemo_clutch_import.mdl", commandEvaluator);
        //model.setLoadPath("C:/Users/student/Desktop/matlab/test.slx");
        model.setLoadPath(modelPath);
        model.registerApplicableFilters("famfilter");
        System.out.println(model.getLoadPathAsURI());
        Importer importer = new Importer(model, new CLISimulinkAPILogger());
        //Importer importer = new Importer(model);
        importer.traverseAndCreateEMFModel(ImportMode.FLATTENING);
        importer.saveEMFModel("test.emf");
    } catch (Exception e) {
        // TODO Auto-generated catch block
        if(factory != null)
         closeModels(factory);
        e.printStackTrace();
    }
istvanrath commented 4 years ago

Can you try with earlier Matlab versions, e.g. 2018a/b?

sopopoola commented 4 years ago

I tried it with 2017b and it gives the same error. It works fine if I go through the GUI in Eclipse (i.e right click on a simulink model and click import), so I don't think if it is the Matlab version. Are some plugins or external dependencies missing?

Thanks

istvanrath commented 4 years ago

@imbur any insights?

abelhegedus commented 4 years ago

Please check https://github.com/viatra/massif/issues/33 and for enabling debug mode here: https://viatra.github.io/massif/user/matlab_connectors.html

Also, are you running as Java application or as an Eclipse application (with OSGi and Eclipse extensions loaded)? Based on your code (main function), you are trying to run a simple Java application, in which case you need some additional steps, see headless usage.

sopopoola commented 4 years ago

Yes, I enabled debug mode and I run it using the headless usage. Here is my setupHeadlessEnvironment() which I called in the main function snippet i posted earlier. The Debug information from Matlab is also provided private static void setupHeadlessEnvironment() { // Set up exporter for headless use CLIInitializationUtil.setupEnvironment();

    ViatraQueryEngineOptions.setSystemDefaultBackends(ReteBackendFactory.INSTANCE, ReteBackendFactory.INSTANCE, LocalSearchEMFBackendFactory.INSTANCE);    
}

Matlab info Executing command: Type: mtEval, command: massif = massif_functions(), numberOfOutputArguments: 0 Executing command: Type: mtEval, command: ImporterTmpResult = addpath('C:/Users/student/Desktop/matlab/'), numberOfOutputArguments: 0 Executing command: Type: mtEval, command: class(ImporterTmpResult), numberOfOutputArguments: 1 Executing command: Type: mtEval, command: ImporterTmpResult(1:end), numberOfOutputArguments: 1 Executing command: Type: mtEval, command: massif = massif_functions(), numberOfOutputArguments: 0 Executing command: Type: mtEval, command: load_system('sldemo_clutch_import.mdl'), numberOfOutputArguments: 0 Executing command: Type: mtEval, command: ImporterTmpResult = get_param('sldemo_clutch_import.mdl','FileName'), numberOfOutputArguments: 0 Executing command: Type: mtEval, command: class(ImporterTmpResult), numberOfOutputArguments: 1 Executing command: Type: mtEval, command: ImporterTmpResult(1:end), numberOfOutputArguments: 1 Executing command: Type: mtEval, command: ImporterTmpResult = get_param('sldemo_clutch_import.mdl','BlockDiagramType'), numberOfOutputArguments: 0 Executing command: Type: mtEval, command: class(ImporterTmpResult), numberOfOutputArguments: 1 Executing command: Type: mtEval, command: ImporterTmpResult(1:end), numberOfOutputArguments: 1 Executing command: Type: mtEval, command: [r0,r1,r2] = fileparts('C:\Users\student\Desktop\matlab;C:\Users\student\git\hawk;C:\Users\student\Documents\MATLAB;C:\Program Files\MATLAB\R2017b\toolbox\matlab\datafun;C:\Program Files\MATLAB\R2017b\toolbox\matlab\datatypes;C:\Program Files\MATLAB\R2017b\toolbox\matlab\elfun;C:\Program Files\MATLAB\R2017b\toolbox\matlab\elmat;C:\Program Files\MATLAB\R2017b\toolbox\matlab\funfun;C:\Program Files\MATLAB\R2017b\toolbox\matlab\general;C:\Program Files\MATLAB\R2017b\toolbox\matlab\iofun;C:\Program Files\MATLAB\R2017b\toolbox\matlab\lang;C:\Program Files\MATLAB\R2017b\toolbox\matlab\matfun;C:\Program 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command: ImporterTmpResult(1:end), numberOfOutputArguments: 1 Executing command: Type: mtEval, command: ImporterTmpResult = get_param('sldemo_clutch_import.mdl','Handle'), numberOfOutputArguments: 0 Executing command: Type: mtEval, command: class(ImporterTmpResult), numberOfOutputArguments: 1 Executing command: Type: mtEval, command: ImporterTmpResult(1:end), numberOfOutputArguments: 1 Executing command: Type: mtEval, command: bdclose('all'), numberOfOutputArguments: 0

Thanks

sopopoola commented 4 years ago

I also noticed that when the program sent this command "get_param('sldemo_clutch_import.mdl','Handle')" a long list of file paths is returned as the result (and I guess it should be a double value to be cast as Handle). Here is a part of the file result ['C:\Users\student\Desktop\matlab;C:\Users\student\git\massif\plugins\hu.bme.mit.massif.simulink.api\scripts;C:\Users\student\Documents\MATLAB;C:\ProgramFiles\MATLAB\R2017b\toolbox\matlab\datafun;C:\Program Files\MATLAB\R2017b\toolbox\matlab\datatypes;....................'']

I also tried to run the command directly from MatLab and I get an error like this "'sldemo_clutch_import.mdl' is not a valid model name because it is not a valid MATLAB function name."

istvanrath commented 4 years ago

We've seen this before: #149

You are hitting a MATLAB-specific obscure error: https://www.mathworks.com/matlabcentral/answers/385376-error-while-opening-simulink-model

The resolution is to make sure your file names correspond to the rules described on https://www.mathworks.com/help/matlab/matlab_prog/variable-names.html

sopopoola commented 4 years ago

I finally resolved the issue. it turns out that I should not include the extension ".mdl" in the name of the file. so instead of ModelObject model = new ModelObject("sldemo_clutch_import.mdl", commandEvaluator);

It should be ModelObject model = new ModelObject("sldemo_clutch_import", commandEvaluator);

Bonus Note: I also tried running it on R2014b but I was getting an error in MATLAB about undefined variable "br.com.embraer.massif.commandevaluation.server". It turns out it was because the Matlab version was shipped with version 7 instead of version 8. So I changed the Matlab_home environment to the java version I want.

abelhegedus commented 4 years ago

Thanks for giving back to the community by sharing your solution!