ac.soton.rms.ui.actions.SetParameters.java Source code

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Here is the source code for ac.soton.rms.ui.actions.SetParameters.java

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/**
 * Copyright (c) 2014 University of Southampton.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 */
package ac.soton.rms.ui.actions;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.emf.workspace.AbstractEMFOperation;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.window.Window;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbenchPart;
import org.ptolemy.fmi.FMIModelDescription;
import org.ptolemy.fmi.FMIScalarVariable;
import org.ptolemy.fmi.FMIScalarVariable.Variability;
import org.ptolemy.fmi.FMUFile;

import ac.soton.rms.components.ComponentsFactory;
import ac.soton.rms.components.FMUComponent;
import ac.soton.rms.components.FMUParameter;
import ac.soton.rms.components.diagram.edit.parts.FMUComponentEditPart;
import ac.soton.rms.components.util.custom.SimulationUtil;
import ac.soton.rms.ui.dialogs.FMUParametersDialog;

/**
 * UI command to modify the FMU component parameters.
 * 
 * @author vitaly
 *
 */
public class SetParameters implements IObjectActionDelegate {

    private FMUComponentEditPart selectedElement;

    @Override
    public void run(IAction action) {
        final FMUComponent component = (FMUComponent) selectedElement.getNotationView().getElement();
        FMIModelDescription modelDescription = null;

        // read model description
        if (component.getFmu() != null) {
            modelDescription = component.getFmu().getModelDescription();
        } else {
            if (component.getPath() == null) {
                MessageDialog.openError(Display.getDefault().getActiveShell(), "Parameters Failure",
                        "FMU path is not set.");
                return;
            }
            try {
                modelDescription = FMUFile.parseFMUFile(component.getPath());
            } catch (IOException e) {
                MessageDialog.openError(Display.getDefault().getActiveShell(), "Parameters Failure",
                        "Could not read the FMU '" + component.getPath() + "' for parameters.");
                return;
            }
        }

        // list all the parameters
        final List<FMUParameter> parameters = new ArrayList<FMUParameter>();
        if (component.getParameters().isEmpty()) {
            for (FMIScalarVariable variable : modelDescription.modelVariables) {
                if (variable.variability == Variability.parameter) { //XXX according to specification a parameter must also be an input, i.e. variable.causality == Causality.input
                    FMUParameter param = ComponentsFactory.eINSTANCE.createFMUParameter();
                    param.setName(variable.name);
                    param.setCausality(SimulationUtil.fmiGetCausality(variable));
                    param.setType(SimulationUtil.fmiGetType(variable));
                    param.setDefaultValue(SimulationUtil.fmiGetDefaultValue(variable));
                    param.setStartValue(param.getDefaultValue());
                    param.setDescription(variable.description);
                    parameters.add(param);
                }
            }
        } else {
            parameters.addAll(EcoreUtil.copyAll(component.getParameters()));
        }

        // display configuration window
        FMUParametersDialog dialog = new FMUParametersDialog(Display.getCurrent().getActiveShell());
        dialog.setParameters(parameters);
        dialog.create();
        if (Window.OK == dialog.open()) {
            try {
                new AbstractEMFOperation(selectedElement.getEditingDomain(), "Set parameters command") {
                    @Override
                    protected IStatus doExecute(IProgressMonitor monitor, IAdaptable info)
                            throws ExecutionException {
                        component.getParameters().clear();
                        component.getParameters().addAll(parameters);
                        return null;
                    }
                }.execute(null, null);
            } catch (ExecutionException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    }

    @Override
    public void selectionChanged(IAction action, ISelection selection) {
        selectedElement = null;
        if (selection instanceof IStructuredSelection) {
            IStructuredSelection structuredSelection = (IStructuredSelection) selection;
            if (structuredSelection.getFirstElement() instanceof FMUComponentEditPart)
                selectedElement = (FMUComponentEditPart) structuredSelection.getFirstElement();
        }
    }

    @Override
    public void setActivePart(IAction action, IWorkbenchPart targetPart) {
        // nothing to do here
    }

}