org.eclipse.eatop.metamodelgen.ui.handlers.EASTADLMMGenUIHandler.java Source code

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Here is the source code for org.eclipse.eatop.metamodelgen.ui.handlers.EASTADLMMGenUIHandler.java

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/**
 * <copyright>
 *  
 * Copyright (c) 2014 itemis and others.
 * All rights reserved. This program and the accompanying materials are made
 * available under the terms of the Eclipse Public License 
 * which accompanies this distribution, and is
 * available at http://www.eclipse.org/org/documents/epl-v10.php
 *  
 * Contributors: 
 *     itemis - Initial API and implementation
 *  
 * </copyright>
 * 
 */
package org.eclipse.eatop.metamodelgen.ui.handlers;

import java.lang.reflect.InvocationTargetException;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.OperationCanceledException;
import org.eclipse.core.runtime.SubMonitor;
import org.eclipse.eatop.eaadapter.util.IConstants;
import org.eclipse.eatop.metamodelgen.EASTADLEcoreMMGen;
import org.eclipse.eatop.metamodelgen.internal.Activator;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.dialogs.ProgressMonitorDialog;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.sphinx.platform.util.PlatformLogUtil;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.handlers.HandlerUtil;

public class EASTADLMMGenUIHandler extends AbstractHandler {

    protected static String GENERATE_ECORE_ONLY_PARAMETER = "org.eclipse.eatop.metamodelgen.commandParameters.ecoreGenOnly"; //$NON-NLS-1$
    protected static String GENERATE_MM_EMF_CODE_PARAMETER = "org.eclipse.eatop.metamodelgen.commandParameters.mmImplGen"; //$NON-NLS-1$
    protected static String GENERATE_ALL_PARAMETER = "org.eclipse.eatop.metamodelgen.commandParameters.allGen"; //$NON-NLS-1$
    protected static String GENERATE_CDO = "org.eclipse.eatop.metamodelgen.commandParameters.cdoGen"; //$NON-NLS-1$

    @Override
    public Object execute(ExecutionEvent event) throws ExecutionException {
        // Gets the selected file from explorer
        IFile selectedEapFile = unwrap(event, IFile.class);
        Shell shell = HandlerUtil.getActiveShell(event);

        if (selectedEapFile != null) {
            if (IConstants.EAP_FILE_EXTENSION.equals(selectedEapFile.getFileExtension())) {
                String generateEcoreOnly = event.getParameter(GENERATE_ECORE_ONLY_PARAMETER);
                String generateMMCode = event.getParameter(GENERATE_MM_EMF_CODE_PARAMETER);
                String generateAll = event.getParameter(GENERATE_ALL_PARAMETER);
                String generateCDO = event.getParameter(GENERATE_CDO);

                // Create EASTADLEcoreMMGen
                final EASTADLEcoreMMGen ecoreMMgen = new EASTADLEcoreMMGen(selectedEapFile,
                        new Boolean(generateEcoreOnly).booleanValue(), new Boolean(generateMMCode).booleanValue(),
                        new Boolean(generateAll).booleanValue(), new Boolean(generateCDO).booleanValue());

                // Progress monitor dialog
                ProgressMonitorDialog dialog = new ProgressMonitorDialog(shell);
                try {
                    dialog.run(true, true, new IRunnableWithProgress() {
                        @Override
                        public void run(IProgressMonitor monitor) {
                            doRun(ecoreMMgen, monitor);
                        }
                    });
                } catch (InvocationTargetException e) {
                    PlatformLogUtil.logAsError(Activator.getDefault(), e.getMessage());
                } catch (InterruptedException e) {
                    PlatformLogUtil.logAsError(Activator.getDefault(), e.getMessage());
                }
            }
        } else {
            MessageDialog.openInformation(shell, "Info", "Please select a EAP source file"); //$NON-NLS-1$//$NON-NLS-2$
        }
        return null;
    }

    private void doRun(EASTADLEcoreMMGen ecoreMMgen, IProgressMonitor monitor) {
        SubMonitor progress = SubMonitor.convert(monitor, "Generating EATOP Ecore file ...", 100); //$NON-NLS-1$
        if (progress.isCanceled()) {
            throw new OperationCanceledException();
        }

        try {
            ecoreMMgen.generate(monitor);
        } catch (Exception e) {
            PlatformLogUtil.logAsError(Activator.getDefault(), e);
        }
    }

    private <T> T unwrap(Object o, Class<T> clazz) {
        if (o instanceof ExecutionEvent) {
            o = HandlerUtil.getCurrentSelection((ExecutionEvent) o);
        }

        if (o instanceof IStructuredSelection) {
            o = ((IStructuredSelection) o).getFirstElement();
        }

        if (o instanceof IAdaptable) {
            o = ((IAdaptable) o).getAdapter(clazz);
        }

        if (clazz.isInstance(o)) {
            return clazz.cast(o);
        }

        return null;
    }

}