plugins/org.polarsys.chess.OSSImporter/src/org/polarsys/chess/OSSImporter/commands/ImportOSSFileCommand.java - chess/chess - Git at Google

 /*******************************************************************************
  * Copyright (C) 2018 Fondazione Bruno Kessler.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v2.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v20.html
  *
  * Contributors:
  *     Luca Cristoforetti - initial API and implementation
  *     Alberto Debiasi - some updates
  ******************************************************************************/
 package org.polarsys.chess.OSSImporter.commands;

 import java.io.File;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;

 import org.apache.log4j.Logger;
 import org.eclipse.core.commands.ExecutionEvent;
 import org.eclipse.core.commands.IHandler;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.NullProgressMonitor;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.MultiStatus;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.emf.ecore.EObject;
 import org.eclipse.emf.ecore.resource.Resource;
 import org.eclipse.emf.transaction.TransactionalEditingDomain;
 import org.eclipse.emf.transaction.util.TransactionUtil;
 import org.eclipse.gmf.runtime.diagram.ui.OffscreenEditPartFactory;
 import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
 import org.eclipse.gmf.runtime.notation.Diagram;
 import org.eclipse.jface.dialogs.ErrorDialog;
 import org.eclipse.jface.dialogs.MessageDialog;
 import org.eclipse.papyrus.uml.tools.model.UmlModel;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.swt.widgets.FileDialog;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.ui.IWorkbenchPage;
 import org.eclipse.ui.PlatformUI;
 import org.polarsys.chess.OSSImporter.core.actions.ImportOSSFileAction;
 import org.polarsys.chess.contracts.profile.chesscontract.util.EntityUtil;
 import org.polarsys.chess.diagram.ui.docGenerators.CHESSBlockDefinitionDiagramModel;
 import org.polarsys.chess.diagram.ui.docGenerators.CHESSInternalBlockDiagramModel;
 import org.polarsys.chess.diagram.ui.services.CHESSDiagramsGeneratorService;
 import org.polarsys.chess.diagramsCreator.actions.ShowBDDElementsAction;
 import org.polarsys.chess.diagramsCreator.actions.ShowIBDElementsAction;
 import org.polarsys.chess.service.gui.utils.SelectionUtil;
 import org.eclipse.uml2.uml.Element;
 import org.eclipse.uml2.uml.Model;
 import org.eclipse.uml2.uml.Package;
 import org.eclipse.uml2.uml.Class;
 import eu.fbk.eclipse.standardtools.utils.ui.commands.AbstractJobCommand;
 import eu.fbk.eclipse.standardtools.utils.ui.utils.DialogUtil;
 import eu.fbk.eclipse.standardtools.xtextService.ui.services.RuntimeErrorService;

 /**
  * Class that starts the parsing of a file in OCRA format. It is triggered by
  * the contextual menu item on an entire package.
  *
  * @author cristofo
  *
  */
 public class ImportOSSFileCommand extends AbstractJobCommand implements IHandler {
 	private static String pluginID = "org.polarsys.chess.OSSImporter";

 	private static final Logger logger = Logger.getLogger(ImportOSSFileCommand.class);

 	private static final String DIALOG_TITLE = "OSS parser";
 	private static final String IBD = "InternalBlock";
 	private static final String BDD = "BlockDefinition";

 	final DialogUtil dialogUtil = DialogUtil.getInstance();

 	/**
 	 * Constructor.
 	 */
 	public ImportOSSFileCommand() {
 		super("Add content from OSS file");
 	}

 	/**
 	 * Shows a message with a report of the import action.
 	 * @param message the message to display
 	 * @param addedElements the  list of added elements
 	 * @param removedElements the list of removed elements
 	 */
 	private void showImportMessage(List<String> addedElements, List<String> removedElements) {
 		final Display defaultDisplay = Display.getDefault();
 		final List<String> items = new ArrayList<String>(addedElements.size() + removedElements.size());

 		String message = "Import done!";
 		if (addedElements.size() > 0 || removedElements.size() > 0) {
 			final String messageAdded = "Added/modified " + addedElements.size() + " elements";
 			final String messageRemoved = "Removed " + removedElements.size() + " elements";
 			message += "\n\n\t" + messageAdded + "\n\t" + messageRemoved;
 		} else {
 			message += "\n\n\tNo changes from the previous model were found.";
 		}

 		final String inportOutcome = message;

 		for (String added : addedElements) {
 			items.add("ADDED " + added);
 		}
 		for (String removed : removedElements) {
 			items.add("REMOVED " + removed);
 		}

 		if (items != null && items.size() > 0) {
 			final MultiStatus info =
 					new MultiStatus(pluginID, 1, "Click on \"Details\" to see the list of changes.", null);
 			for (String item : items) {
 				info.add(new Status(IStatus.INFO, pluginID, 1, item, null));
 			}

 			defaultDisplay.syncExec(new Runnable() {
 				@Override
 				public void run() {
 					final Shell currShell = defaultDisplay.getActiveShell();
 					ImportDialog.openError(currShell, DIALOG_TITLE, inportOutcome, info);
 				}
 			});
 		} else {
 			defaultDisplay.syncExec(new Runnable() {
 				@Override
 				public void run() {
 					Shell currShell = defaultDisplay.getActiveShell();
 					MessageDialog.openInformation(currShell, "Info", inportOutcome);
 				}
 			});
 		}
 	}

 	/**
 	 * Shows a message with a report of the modified diagrams.
 	 * @param message the message to display
 	 * @param removedElements the list of modified diagrams
 	 */
 	private void showDiagramMessage(Set<String> modifiedDiagrams) {
 		final Display defaultDisplay = Display.getDefault();
 		if (modifiedDiagrams != null && modifiedDiagrams.size() > 0) {
 			final MultiStatus info =
 					new MultiStatus(pluginID, 1,
 							"Click on \"Details\" to see the list of modified/removed diagrams.", null);
 			for (String item : modifiedDiagrams) {
 				info.add(new Status(IStatus.INFO, pluginID, 1, item, null));
 			}

 			defaultDisplay.syncExec(new Runnable() {
 				@Override
 				public void run() {
 					final Shell currShell = defaultDisplay.getActiveShell();
 					ImportDialog.openError(currShell, DIALOG_TITLE, "Diagrams updated!", info);
 				}
 			});
 		} else {
 			dialogUtil.showMessage_GenericMessage(DIALOG_TITLE, "\nNo diagrams needed changes");
 		}
 	}

 	@Override
 	public void execPreJobOperations(ExecutionEvent event, IProgressMonitor monitor) throws Exception {

 		final EntityUtil entityUtil = EntityUtil.getInstance();
 		final SelectionUtil selectionUtil = SelectionUtil.getInstance();

 		// get the parameters
 		final String packageURI = event.getParameter("packageURI");
 		final String ossFilePath = event.getParameter("ossFilePath");

 		logger.debug("packageURI: " + packageURI);
 		logger.debug("ossFilePath: " + ossFilePath);

 		final Object umlPackage;
 		final Resource resource;

 		// if parameters == null then take them from current CHESS session
 		if (packageURI == null) {
 			umlPackage = selectionUtil.getUmlSelectedObject(event);
 			resource = selectionUtil.getSelectedUmlModel().getResource();
 		} else {
 			final Resource modelRes = SelectionUtil.getInstance().getSelectedModelResource();
 			final Model model = (org.eclipse.uml2.uml.Model) modelRes.getContents().get(0);
 			umlPackage = (Package) EntityUtil.getInstance().getElement(model, packageURI);
 			logger.debug("umlPackage: " + umlPackage);

 			resource = ((Package) umlPackage).eResource();
 		}

 		if (entityUtil.isSystemViewPackage((Element) umlPackage)) {

 			final File ossFile;

 			if (ossFilePath != null) {
 				ossFile = new File(ossFilePath);
 			} else {
 				ossFile = getOSSFileFromDialog();
 			}

 			if (ossFile != null) {
 				// Check if there are errors in the OSS file
 				final boolean isValid = RuntimeErrorService.getInstance().showOSSRuntimeErrors(ossFile, resource, true,
 						false, monitor);

 				monitor.beginTask("Importing elements from OSS file", 1);

 				final ImportOSSFileAction action = ImportOSSFileAction.getInstance();

 				if (isValid && action != null) {

 					// Hide the active page in order to avoid popups appearing
 					final IWorkbenchPage activePage = PlatformUI.getWorkbench().getActiveWorkbenchWindow()
 							.getActivePage();
 					activePage.setEditorAreaVisible(false);
 					//Resource resource = SelectionUtil.getInstance().getSelectedModelResource();

 					Package sysViewPkg = EntityUtil.getInstance().getCurrentSystemView();
 					TransactionalEditingDomain domain = TransactionUtil.getEditingDomain(umlPackage);

 					// Parse the file and retrieve results
 					final StringBuffer importErrors = action.startParsing((Package) umlPackage, ossFile,domain);
 					if (importErrors.length() != 0) {
 						dialogUtil.showMessage_GenericMessage(DIALOG_TITLE, importErrors.toString());
 					}

 					// Restore the active page
 					activePage.setEditorAreaVisible(true);

 					final List<String> addedElements = action.getAddedElements();
 					final List<String> removedElements = action.getRemovedElements();
 					showImportMessage(addedElements, removedElements);

 					final Set<String> modifiedDiagrams = action.getModifiedDiagrams();
 					modifiedDiagrams.addAll(updateDiagrams((Package) umlPackage));
 					showDiagramMessage(modifiedDiagrams);
 				}
 			}
 			monitor.done();
 			return;
 		}
 		dialogUtil.showMessage_GenericMessage(DIALOG_TITLE, "Please select a package from <<SystemView>>");
 	}

 	@Override
 	public void execJobCommand(ExecutionEvent event, IProgressMonitor monitor) throws Exception {
 	}

 	/**
 	 * Updates the diagrams in the given package.
 	 * @param pkg the package containing the diagrams
 	 * @return
 	 */
 	private Set<String> updateDiagrams(Package pkg) {

 		final Set<String> modifiedDiagrams = new HashSet<String>();

 		// Update all the diagrams of the model
 		final CHESSDiagramsGeneratorService chessDiagramsGeneratorService = CHESSDiagramsGeneratorService.getInstance();//CHESSInternalBlockDiagramModel.getInstance(), CHESSBlockDefinitionDiagramModel.getInstance()
 		final Collection<Diagram> chessDiagrams = chessDiagramsGeneratorService.getDiagrams();
 		final Shell shell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();

 		for (Diagram diagram : chessDiagrams) {

 			// Get the package owner of the diagram
 			Package activePackage = null;
 			final EObject diagramElement = diagram.getElement();
 			if (diagramElement instanceof Package) {
 				activePackage = (Package) diagramElement;
 			} else if (diagramElement instanceof Class) {
 				activePackage = ((Class) diagramElement).getPackage();
 			}

 			// Check to see if the diagram is of the same package
 			if (activePackage != pkg) {
 				continue;
 			}

 			if (diagram.getType().equals(BDD)) {

 				// Get the EditPart associated to the diagram and refresh the diagram
 				final IGraphicalEditPart diagramEP = OffscreenEditPartFactory.getInstance()
 						.createDiagramEditPart(diagram, shell);
 				if (ShowBDDElementsAction.getInstance().refreshDiagram(diagramEP)) {
 					modifiedDiagrams.add(diagram.getName());
 				}

 			} else if (diagram.getType().equals(IBD)) {

 				// Get the EditPart associated to the diagram and refresh the diagram
 				final IGraphicalEditPart diagramEP = OffscreenEditPartFactory.getInstance()
 						.createDiagramEditPart(diagram, shell);
 				if (ShowIBDElementsAction.getInstance().refreshDiagram(diagramEP)) {
 					modifiedDiagrams.add(diagram.getName());
 				}
 			}
 		}
 		return modifiedDiagrams;
 	}

 	/**
 	 * Displays a file dialog to select the OSS file.
 	 *
 	 * @return the selected File
 	 * @throws Exception
 	 */
 	private File getOSSFileFromDialog() throws Exception {
 		File ossFile = null;

 		final FileDialog dialog =
 				new FileDialog(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), SWT.OPEN);
 		dialog.setFilterExtensions(new String[] { "*.oss", "*.OSS" });
 		final String result = dialog.open();

 		if (result != null) {
 			try {
 				ossFile = new File(result);
 			} catch (NullPointerException e) {
 				throw new Exception("File not valid!");
 			}
 		}
 		return ossFile;
 	}

 	@Override
 	public void execPostJobOperations(ExecutionEvent event, NullProgressMonitor nullProgressMonitor) throws Exception {
 		// TODO Auto-generated method stub

 	}
 }

 /**
  * A small class derived from the ErrorDialog, in order to have a Details button.
  * @author cristofo
  *
  */
 class ImportDialog extends ErrorDialog {
 	public ImportDialog(Shell parentShell, String dialogTitle, String message, IStatus status, int displayMask) {
 		super(parentShell, dialogTitle, message, status, displayMask);
 		this.message = message == null ? status.getMessage() : message + "\n\n" +  status.getMessage();
 	}

 	public static int openError(Shell parent, String dialogTitle, String message, IStatus status) {
 		return openError(parent, dialogTitle, message, status, IStatus.OK |
 				IStatus.INFO | IStatus.WARNING | IStatus.ERROR);
 	}

 	public static int openError(Shell parentShell, String title, String message, IStatus status, int displayMask) {
 		ErrorDialog dialog = new ImportDialog(parentShell, title, message, status, displayMask);
 		return dialog.open();
 	}
 }
	/*******************************************************************************
	* Copyright (C) 2018 Fondazione Bruno Kessler.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v2.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v20.html
	*
	* Contributors:
	* Luca Cristoforetti - initial API and implementation
	* Alberto Debiasi - some updates
	******************************************************************************/
	package org.polarsys.chess.OSSImporter.commands;

	import java.io.File;
	import java.util.ArrayList;
	import java.util.Collection;
	import java.util.HashSet;
	import java.util.List;
	import java.util.Set;

	import org.apache.log4j.Logger;
	import org.eclipse.core.commands.ExecutionEvent;
	import org.eclipse.core.commands.IHandler;
	import org.eclipse.core.runtime.IProgressMonitor;
	import org.eclipse.core.runtime.NullProgressMonitor;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.MultiStatus;
	import org.eclipse.core.runtime.Status;
	import org.eclipse.emf.ecore.EObject;
	import org.eclipse.emf.ecore.resource.Resource;
	import org.eclipse.emf.transaction.TransactionalEditingDomain;
	import org.eclipse.emf.transaction.util.TransactionUtil;
	import org.eclipse.gmf.runtime.diagram.ui.OffscreenEditPartFactory;
	import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
	import org.eclipse.gmf.runtime.notation.Diagram;
	import org.eclipse.jface.dialogs.ErrorDialog;
	import org.eclipse.jface.dialogs.MessageDialog;
	import org.eclipse.papyrus.uml.tools.model.UmlModel;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.widgets.Display;
	import org.eclipse.swt.widgets.FileDialog;
	import org.eclipse.swt.widgets.Shell;
	import org.eclipse.ui.IWorkbenchPage;
	import org.eclipse.ui.PlatformUI;
	import org.polarsys.chess.OSSImporter.core.actions.ImportOSSFileAction;
	import org.polarsys.chess.contracts.profile.chesscontract.util.EntityUtil;
	import org.polarsys.chess.diagram.ui.docGenerators.CHESSBlockDefinitionDiagramModel;
	import org.polarsys.chess.diagram.ui.docGenerators.CHESSInternalBlockDiagramModel;
	import org.polarsys.chess.diagram.ui.services.CHESSDiagramsGeneratorService;
	import org.polarsys.chess.diagramsCreator.actions.ShowBDDElementsAction;
	import org.polarsys.chess.diagramsCreator.actions.ShowIBDElementsAction;
	import org.polarsys.chess.service.gui.utils.SelectionUtil;
	import org.eclipse.uml2.uml.Element;
	import org.eclipse.uml2.uml.Model;
	import org.eclipse.uml2.uml.Package;
	import org.eclipse.uml2.uml.Class;
	import eu.fbk.eclipse.standardtools.utils.ui.commands.AbstractJobCommand;
	import eu.fbk.eclipse.standardtools.utils.ui.utils.DialogUtil;
	import eu.fbk.eclipse.standardtools.xtextService.ui.services.RuntimeErrorService;

	/**
	* Class that starts the parsing of a file in OCRA format. It is triggered by
	* the contextual menu item on an entire package.
	*
	* @author cristofo
	*
	*/
	public class ImportOSSFileCommand extends AbstractJobCommand implements IHandler {
	private static String pluginID = "org.polarsys.chess.OSSImporter";

	private static final Logger logger = Logger.getLogger(ImportOSSFileCommand.class);

	private static final String DIALOG_TITLE = "OSS parser";
	private static final String IBD = "InternalBlock";
	private static final String BDD = "BlockDefinition";

	final DialogUtil dialogUtil = DialogUtil.getInstance();

	/**
	* Constructor.
	*/
	public ImportOSSFileCommand() {
	super("Add content from OSS file");
	}

	/**
	* Shows a message with a report of the import action.
	* @param message the message to display
	* @param addedElements the list of added elements
	* @param removedElements the list of removed elements
	*/
	private void showImportMessage(List<String> addedElements, List<String> removedElements) {
	final Display defaultDisplay = Display.getDefault();
	final List<String> items = new ArrayList<String>(addedElements.size() + removedElements.size());

	String message = "Import done!";
	if (addedElements.size() > 0 \|\| removedElements.size() > 0) {
	final String messageAdded = "Added/modified " + addedElements.size() + " elements";
	final String messageRemoved = "Removed " + removedElements.size() + " elements";
	message += "\n\n\t" + messageAdded + "\n\t" + messageRemoved;
	} else {
	message += "\n\n\tNo changes from the previous model were found.";
	}

	final String inportOutcome = message;

	for (String added : addedElements) {
	items.add("ADDED " + added);
	}
	for (String removed : removedElements) {
	items.add("REMOVED " + removed);
	}

	if (items != null && items.size() > 0) {
	final MultiStatus info =
	new MultiStatus(pluginID, 1, "Click on \"Details\" to see the list of changes.", null);
	for (String item : items) {
	info.add(new Status(IStatus.INFO, pluginID, 1, item, null));
	}

	defaultDisplay.syncExec(new Runnable() {
	@Override
	public void run() {
	final Shell currShell = defaultDisplay.getActiveShell();
	ImportDialog.openError(currShell, DIALOG_TITLE, inportOutcome, info);
	}
	});
	} else {
	defaultDisplay.syncExec(new Runnable() {
	@Override
	public void run() {
	Shell currShell = defaultDisplay.getActiveShell();
	MessageDialog.openInformation(currShell, "Info", inportOutcome);
	}
	});
	}
	}

	/**
	* Shows a message with a report of the modified diagrams.
	* @param message the message to display
	* @param removedElements the list of modified diagrams
	*/
	private void showDiagramMessage(Set<String> modifiedDiagrams) {
	final Display defaultDisplay = Display.getDefault();
	if (modifiedDiagrams != null && modifiedDiagrams.size() > 0) {
	final MultiStatus info =
	new MultiStatus(pluginID, 1,
	"Click on \"Details\" to see the list of modified/removed diagrams.", null);
	for (String item : modifiedDiagrams) {
	info.add(new Status(IStatus.INFO, pluginID, 1, item, null));
	}

	defaultDisplay.syncExec(new Runnable() {
	@Override
	public void run() {
	final Shell currShell = defaultDisplay.getActiveShell();
	ImportDialog.openError(currShell, DIALOG_TITLE, "Diagrams updated!", info);
	}
	});
	} else {
	dialogUtil.showMessage_GenericMessage(DIALOG_TITLE, "\nNo diagrams needed changes");
	}
	}

	@Override
	public void execPreJobOperations(ExecutionEvent event, IProgressMonitor monitor) throws Exception {

	final EntityUtil entityUtil = EntityUtil.getInstance();
	final SelectionUtil selectionUtil = SelectionUtil.getInstance();

	// get the parameters
	final String packageURI = event.getParameter("packageURI");
	final String ossFilePath = event.getParameter("ossFilePath");

	logger.debug("packageURI: " + packageURI);
	logger.debug("ossFilePath: " + ossFilePath);

	final Object umlPackage;
	final Resource resource;

	// if parameters == null then take them from current CHESS session
	if (packageURI == null) {
	umlPackage = selectionUtil.getUmlSelectedObject(event);
	resource = selectionUtil.getSelectedUmlModel().getResource();
	} else {
	final Resource modelRes = SelectionUtil.getInstance().getSelectedModelResource();
	final Model model = (org.eclipse.uml2.uml.Model) modelRes.getContents().get(0);
	umlPackage = (Package) EntityUtil.getInstance().getElement(model, packageURI);
	logger.debug("umlPackage: " + umlPackage);

	resource = ((Package) umlPackage).eResource();
	}

	if (entityUtil.isSystemViewPackage((Element) umlPackage)) {

	final File ossFile;

	if (ossFilePath != null) {
	ossFile = new File(ossFilePath);
	} else {
	ossFile = getOSSFileFromDialog();
	}

	if (ossFile != null) {
	// Check if there are errors in the OSS file
	final boolean isValid = RuntimeErrorService.getInstance().showOSSRuntimeErrors(ossFile, resource, true,
	false, monitor);

	monitor.beginTask("Importing elements from OSS file", 1);

	final ImportOSSFileAction action = ImportOSSFileAction.getInstance();

	if (isValid && action != null) {

	// Hide the active page in order to avoid popups appearing
	final IWorkbenchPage activePage = PlatformUI.getWorkbench().getActiveWorkbenchWindow()
	.getActivePage();
	activePage.setEditorAreaVisible(false);
	//Resource resource = SelectionUtil.getInstance().getSelectedModelResource();

	Package sysViewPkg = EntityUtil.getInstance().getCurrentSystemView();
	TransactionalEditingDomain domain = TransactionUtil.getEditingDomain(umlPackage);

	// Parse the file and retrieve results
	final StringBuffer importErrors = action.startParsing((Package) umlPackage, ossFile,domain);
	if (importErrors.length() != 0) {
	dialogUtil.showMessage_GenericMessage(DIALOG_TITLE, importErrors.toString());
	}

	// Restore the active page
	activePage.setEditorAreaVisible(true);

	final List<String> addedElements = action.getAddedElements();
	final List<String> removedElements = action.getRemovedElements();
	showImportMessage(addedElements, removedElements);

	final Set<String> modifiedDiagrams = action.getModifiedDiagrams();
	modifiedDiagrams.addAll(updateDiagrams((Package) umlPackage));
	showDiagramMessage(modifiedDiagrams);
	}
	}
	monitor.done();
	return;
	}
	dialogUtil.showMessage_GenericMessage(DIALOG_TITLE, "Please select a package from <<SystemView>>");
	}

	@Override
	public void execJobCommand(ExecutionEvent event, IProgressMonitor monitor) throws Exception {
	}

	/**
	* Updates the diagrams in the given package.
	* @param pkg the package containing the diagrams
	* @return
	*/
	private Set<String> updateDiagrams(Package pkg) {

	final Set<String> modifiedDiagrams = new HashSet<String>();

	// Update all the diagrams of the model
	final CHESSDiagramsGeneratorService chessDiagramsGeneratorService = CHESSDiagramsGeneratorService.getInstance();//CHESSInternalBlockDiagramModel.getInstance(), CHESSBlockDefinitionDiagramModel.getInstance()
	final Collection<Diagram> chessDiagrams = chessDiagramsGeneratorService.getDiagrams();
	final Shell shell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();

	for (Diagram diagram : chessDiagrams) {

	// Get the package owner of the diagram
	Package activePackage = null;
	final EObject diagramElement = diagram.getElement();
	if (diagramElement instanceof Package) {
	activePackage = (Package) diagramElement;
	} else if (diagramElement instanceof Class) {
	activePackage = ((Class) diagramElement).getPackage();
	}

	// Check to see if the diagram is of the same package
	if (activePackage != pkg) {
	continue;
	}

	if (diagram.getType().equals(BDD)) {

	// Get the EditPart associated to the diagram and refresh the diagram
	final IGraphicalEditPart diagramEP = OffscreenEditPartFactory.getInstance()
	.createDiagramEditPart(diagram, shell);
	if (ShowBDDElementsAction.getInstance().refreshDiagram(diagramEP)) {
	modifiedDiagrams.add(diagram.getName());
	}

	} else if (diagram.getType().equals(IBD)) {

	// Get the EditPart associated to the diagram and refresh the diagram
	final IGraphicalEditPart diagramEP = OffscreenEditPartFactory.getInstance()
	.createDiagramEditPart(diagram, shell);
	if (ShowIBDElementsAction.getInstance().refreshDiagram(diagramEP)) {
	modifiedDiagrams.add(diagram.getName());
	}
	}
	}
	return modifiedDiagrams;
	}

	/**
	* Displays a file dialog to select the OSS file.
	*
	* @return the selected File
	* @throws Exception
	*/
	private File getOSSFileFromDialog() throws Exception {
	File ossFile = null;

	final FileDialog dialog =
	new FileDialog(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), SWT.OPEN);
	dialog.setFilterExtensions(new String[] { ".oss", ".OSS" });
	final String result = dialog.open();

	if (result != null) {
	try {
	ossFile = new File(result);
	} catch (NullPointerException e) {
	throw new Exception("File not valid!");
	}
	}
	return ossFile;
	}

	@Override
	public void execPostJobOperations(ExecutionEvent event, NullProgressMonitor nullProgressMonitor) throws Exception {
	// TODO Auto-generated method stub

	}
	}

	/**
	* A small class derived from the ErrorDialog, in order to have a Details button.
	* @author cristofo
	*
	*/
	class ImportDialog extends ErrorDialog {
	public ImportDialog(Shell parentShell, String dialogTitle, String message, IStatus status, int displayMask) {
	super(parentShell, dialogTitle, message, status, displayMask);
	this.message = message == null ? status.getMessage() : message + "\n\n" + status.getMessage();
	}

	public static int openError(Shell parent, String dialogTitle, String message, IStatus status) {
	return openError(parent, dialogTitle, message, status, IStatus.OK \|
	IStatus.INFO \| IStatus.WARNING \| IStatus.ERROR);
	}

	public static int openError(Shell parentShell, String title, String message, IStatus status, int displayMask) {
	ErrorDialog dialog = new ImportDialog(parentShell, title, message, status, displayMask);
	return dialog.open();
	}
	}