org.eclipse.xwt.tools.ui.designer/src/org/eclipse/xwt/tools/ui/designer/wizards/ExternalizeStringsWizard.java - xwt/org.eclipse.xwt - Git at Google

 /*******************************************************************************
  * Copyright (c) 2006, 2010 Soyatec (http://www.soyatec.com) and others.
  * 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
  *
  * Contributors:
  *     Soyatec - initial API and implementation
  *******************************************************************************/
 package org.eclipse.xwt.tools.ui.designer.wizards;

 import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.List;

 import org.eclipse.core.resources.IContainer;
 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.IncrementalProjectBuilder;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.NullProgressMonitor;
 import org.eclipse.xwt.IConstants;
 import org.eclipse.gef.EditPart;
 import org.eclipse.gef.RootEditPart;
 import org.eclipse.gef.commands.Command;
 import org.eclipse.gef.commands.CompoundCommand;
 import org.eclipse.jdt.core.IJavaElement;
 import org.eclipse.jdt.core.IJavaProject;
 import org.eclipse.jdt.core.IPackageFragment;
 import org.eclipse.jdt.core.IPackageFragmentRoot;
 import org.eclipse.jdt.core.JavaCore;
 import org.eclipse.jdt.core.JavaModelException;
 import org.eclipse.jface.dialogs.MessageDialog;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.wizard.Wizard;
 import org.eclipse.ui.INewWizard;
 import org.eclipse.ui.IWorkbench;
 import org.eclipse.ui.IWorkbenchPage;
 import org.eclipse.ui.IWorkbenchWizard;
 import org.eclipse.ui.PartInitException;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.ide.IDE;
 import org.eclipse.xwt.tools.ui.designer.commands.AddNewChildCommand;
 import org.eclipse.xwt.tools.ui.designer.commands.DeleteCommand;
 import org.eclipse.xwt.tools.ui.designer.core.util.DisplayUtil;
 import org.eclipse.xwt.tools.ui.designer.editor.XWTDesigner;
 import org.eclipse.xwt.tools.ui.designer.parts.WidgetEditPart;
 import org.eclipse.xwt.tools.ui.designer.wizards.contents.ProperyContents;
 import org.eclipse.xwt.tools.ui.designer.wizards.contents.SourceContents;
 import org.eclipse.xwt.tools.ui.designer.wizards.models.TextValueEntry;
 import org.eclipse.xwt.tools.ui.designer.wizards.models.TextValueModel;
 import org.eclipse.xwt.tools.ui.designer.wizards.pages.ExternalizeStringsWizardPage;
 import org.eclipse.xwt.tools.ui.xaml.XamlAttribute;
 import org.eclipse.xwt.tools.ui.xaml.XamlElement;
 import org.eclipse.xwt.tools.ui.xaml.XamlFactory;
 import org.eclipse.xwt.tools.ui.xaml.XamlNode;

 /**
  * @author xrchen (xiaoru.chen@soyatec.com)
  */
 public class ExternalizeStringsWizard extends Wizard implements INewWizard {
 	private ExternalizeStringsWizardPage externalizeStringsWizardPage;

 	private ISelection selection;

 	private TextValueModel textValueEntrys;

 	private XWTDesigner designer;

 	private String classPerfixName;

 	private String classFilePath;

 	private String className;

 	private String propertyFilePath;

 	private String propertyName;

 	private TextValueModel checkedItems;

 	private boolean openFlag;

 	private CompoundCommand commandList;

 	/**
 	 * Constructor for ExternalizeStringsWizard.
 	 */
 	public ExternalizeStringsWizard(TextValueModel textValueEntrys, XWTDesigner designer) {
 		super();
 		this.textValueEntrys = textValueEntrys;
 		this.designer = designer;
 		setNeedsProgressMonitor(true);
 	}

 	/**
 	 * Adding the page to the wizard.
 	 */
 	public void addPages() {
 		setWindowTitle("Externalize Strings");
 		externalizeStringsWizardPage = new ExternalizeStringsWizardPage(selection, textValueEntrys);
 		addPage(externalizeStringsWizardPage);
 		getDefaultAccessorContents();
 	}

 	private void getDefaultAccessorContents() {
 		IFile inputFile = designer.getFile();

 		IContainer container = inputFile.getParent();
 		IJavaElement javaElement =  JavaCore.create(container);
 		IPackageFragmentRoot defaultRoot = null;
 		if (javaElement != null && javaElement.exists()) {
 			IJavaProject javaProject = JavaCore.create(inputFile.getProject());
 			try {
 				IPackageFragmentRoot fragmentRoot[] = javaProject.getAllPackageFragmentRoots();
 				for (int i = 0; i < fragmentRoot.length; i++) {
 					if (fragmentRoot[i].getKind() == IPackageFragmentRoot.K_SOURCE) {
 						defaultRoot = fragmentRoot[i];
 						for (IJavaElement element : defaultRoot.getChildren()) {
 							if (element.getElementType() == IJavaElement.PACKAGE_FRAGMENT) {
 								javaElement = element;
 							}
 						}
 						break;
 					}
 				}
 			} catch (JavaModelException e) {
 				e.printStackTrace();
 			}
 		}
 		if (javaElement == null || !(javaElement instanceof IPackageFragment)) {
 			String projectName = inputFile.getProject().getName();
 			externalizeStringsWizardPage.setErrorMessage("The project " + projectName + " has not source folder.");
 			return;
 		}

 		externalizeStringsWizardPage.setDefaultRoot(defaultRoot);
 		externalizeStringsWizardPage.setDefaultFolder(defaultRoot.getResource().getFullPath().toString());
 		externalizeStringsWizardPage.setDefaultPackage(javaElement.getElementName());
 	}

 	/**
 	 * This method is called when 'Finish' button is pressed in the wizard. We will create an operation and run it using wizard as execution context.
 	 */
 	public boolean performFinish() {
 		classFilePath = externalizeStringsWizardPage.getInfo().getClassFilePath();
 		className = externalizeStringsWizardPage.getInfo().getClassName() + ".java";
 		propertyFilePath = externalizeStringsWizardPage.getInfo().getPropertyFilePath();
 		propertyName = externalizeStringsWizardPage.getInfo().getPropertyName() + ".properties";
 		try {
 			doFinish(new NullProgressMonitor());
 		} catch (CoreException e) {
 			e.printStackTrace();
 		} catch (IOException e) {
 			e.printStackTrace();
 			return false;
 		} catch (returnWizardPage e) {
 			return false;
 		}
 		return true;
 	}

 	/**
 	 * Show a dialog to ask user whether to open the created files.
 	 *
 	 * @throws returnWizardPage
 	 */
 	private void showOpenFileDialog() throws returnWizardPage {
 		String dialogMessage = "Do you want to open " + externalizeStringsWizardPage.getInfo().getClassName() + ".java and " + externalizeStringsWizardPage.getInfo().getPropertyName() + ".properties after finish?";
 		String[] dialogButtonLabels = { "Open", "Cancel" };
 		MessageDialog messageDialog = new MessageDialog(getShell(), "Open created files", null, dialogMessage, MessageDialog.QUESTION, dialogButtonLabels, 1);
 		messageDialog.open();
 		if (messageDialog.getReturnCode() == 0) {
 			openFlag = true;
 		} else if (messageDialog.getReturnCode() == -1) {
 			throw new returnWizardPage();
 		} else {
 			openFlag = false;
 		}
 	}

 	/**
 	 * The worker method. It will find the container, create the file if missing or just replace its nameMap, and open the editor on the newly created file.
 	 *
 	 * @param monitor
 	 * @throws CoreException
 	 * @throws IOException
 	 * @throws returnWizardPage
 	 */
 	private void doFinish(IProgressMonitor monitor) throws CoreException, IOException, returnWizardPage {
 		String propertyPerfixName = propertyName.substring(0, propertyName.length() - 11);
 		classPerfixName = className.substring(0, className.length() - 5);
 		checkedItems = externalizeStringsWizardPage.getCheckedItems();

 		showOpenFileDialog();

 		// create a property file
 		createFile(propertyFilePath, propertyName, propertyPerfixName, false, monitor);
 		// create a class file
 		createFile(classFilePath, className, propertyPerfixName, true, monitor);
 		// externalize string
 		final Command changTextCmd = changText();
 		DisplayUtil.asyncExec(new Runnable() {
 			public void run() {
 				RootEditPart rootEditPart = designer.getGraphicalViewer().getRootEditPart();
 				rootEditPart.getViewer().getEditDomain().getCommandStack().execute(changTextCmd);
 			}
 		});
 		monitor.worked(1);
 	}

 	/**
 	 * Create a file with file path and file name.
 	 *
 	 * @param containerName
 	 * @param fileName
 	 * @param isClassFile
 	 * @param monitor
 	 * @throws CoreException
 	 * @throws returnWizardPage
 	 */
 	private void createFile(String containerName, String fileName, String propertyfileName, boolean isClassFile, IProgressMonitor monitor) throws CoreException, returnWizardPage {
 		monitor.beginTask("Creating " + fileName, 2);
 		final IFile file = ExternalizeStringsCommon.getIFile(containerName, fileName);
 		try {
 			InputStream stream;
 			if (!isClassFile) {
 				stream = openPropertyContentStream(checkedItems);
 			} else {
 				if (file.exists()) {
 					// Get the nameMap of the exist file.
 					StringBuffer historyContent = ExternalizeStringsCommon
 							.getHistoryContents(file);
 					// Create inputStream with exist files nameMap.
 					stream = openSourceContentStream(checkedItems, containerName, fileName, propertyfileName, historyContent);
 				} else {
 					// Create a new inputStream.
 					stream = openSourceContentStream(checkedItems, containerName, fileName, propertyfileName, null);
 				}
 			}
 			if (file.exists()) {
 				if (isClassFile) {
 					file.setContents(stream, true, true, monitor);
 				} else {
 					file.appendContents(stream, true, true, monitor);
 				}
 			} else {
 				file.create(stream, true, monitor);
 			}
 			stream.close();
 			// build class file
 			IProject project = file.getProject();
 			project.refreshLocal(IResource.DEPTH_INFINITE, monitor);
 			project.build(IncrementalProjectBuilder.INCREMENTAL_BUILD, monitor);
 		} catch (IOException e) {
 			e.printStackTrace();
 		}
 		if (openFlag) {
 			getShell().getDisplay().asyncExec(new Runnable() {
 				public void run() {
 					IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
 					try {
 						IDE.openEditor(page, file, true);
 					} catch (PartInitException e) {
 						e.printStackTrace();
 					}
 				}
 			});
 		}
 	}

 	/**
 	 * Initialize source file nameMap with a text.
 	 */
 	private InputStream openSourceContentStream(TextValueModel checkedItems, String containerName, String fileName, String porpertyfileName, StringBuffer historyContent) {
 		IPackageFragmentRoot classRoot = externalizeStringsWizardPage.getInfo().getClassRoot();
 		SourceContents sourceContents = new SourceContents(checkedItems, containerName, propertyFilePath, fileName, porpertyfileName, historyContent, classRoot);
 		String contents = sourceContents.getSourceContents();
 		return new ByteArrayInputStream(contents.getBytes());
 	}

 	/**
 	 * Initialize property file nameMap with a text.
 	 */
 	private InputStream openPropertyContentStream(TextValueModel checkedItems) {
 		ProperyContents properyContents = new ProperyContents(checkedItems);
 		String contents = properyContents.getPropertyContents();
 		return new ByteArrayInputStream(contents.getBytes());
 	}

 	/**
 	 * We will accept the selection in the workbench to see if we can initialize from it.
 	 *
 	 * @see IWorkbenchWizard#init(IWorkbench, IStructuredSelection)
 	 */
 	public void init(IWorkbench workbench, IStructuredSelection selection) {
 		this.selection = selection;
 	}

 	/**
 	 * Externalize string.
 	 */
 	private Command changText() {
 		commandList = new CompoundCommand();
 		RootEditPart rootEditPart = designer.getGraphicalViewer().getRootEditPart();
 		EditPart contents = rootEditPart.getContents();
 		Object textValueEntry[] = externalizeStringsWizardPage.getCheckedItems().elements();
 		for (int i = 0; i < textValueEntry.length; i++) {
 			if (textValueEntry[i] instanceof TextValueEntry) {
 				String value = ((TextValueEntry) textValueEntry[i]).getValue();
 				String key = ((TextValueEntry) textValueEntry[i]).getKey();
 				externalizeText(contents, value, key, "text");
 				externalizeText(contents, value, key, "toolTipText");
 			}
 		}
 		return commandList.unwrap();
 	}

 	/**
 	 * Change the parent editPart text value to the key.
 	 *
 	 * @param editPart
 	 * @param value
 	 * @param key
 	 */
 	private void externalizeText(EditPart editPart, String value, String key, String type) {
 		if (editPart instanceof WidgetEditPart) {
 			XamlNode node = ((WidgetEditPart) editPart).getCastModel();
 			XamlAttribute attribute = node.getAttribute(type, IConstants.XWT_NAMESPACE);
 			if (attribute != null) {
 				if (value.equals(attribute.getValue())) {

 					commandList.add(new DeleteCommand(attribute));
 					attribute = null;
 					if (attribute == null) {
 						attribute = XamlFactory.eINSTANCE.createAttribute(type, IConstants.XWT_NAMESPACE);
 					}
 					attribute.setUseFlatValue(true);
 					XamlElement child = attribute.getChild("Static", IConstants.XWT_X_NAMESPACE);
 					if (child == null) {
 						child = XamlFactory.eINSTANCE.createElement("Static", IConstants.XWT_X_NAMESPACE);
 					}
 					String classPakage = externalizeStringsWizardPage.getInfo().getSourcePackage();
 					XamlElement childElement = child.getChild(classPerfixName + "." + key, IConstants.XAML_CLR_NAMESPACE_PROTO + classPakage);
 					if (childElement != null) {
 						child.getChildNodes().remove(childElement);
 					}
 					childElement = XamlFactory.eINSTANCE.createElement(classPerfixName + "." + key, IConstants.XAML_CLR_NAMESPACE_PROTO + classPakage);

 					commandList.add(new AddNewChildCommand(child, childElement));
 					commandList.add(new AddNewChildCommand(attribute, child));
 					if (!node.getAttributes().contains(attribute)) {
 						commandList.add(new AddNewChildCommand(node, attribute));
 					}
 				}
 			}
 			if (editPart.getChildren().size() > 0) {
 				externalizeChildren(editPart, value, key, type);
 			}
 		} else if (editPart.getChildren().size() > 0) {
 			externalizeChildren(editPart, value, key, type);
 		}
 	}

 	/**
 	 * Change the editPart's children text value to the key.
 	 *
 	 * @param editPart
 	 */
 	private void externalizeChildren(EditPart editPart, String value, String key, String type) {
 		List child = editPart.getChildren();
 		for (int i = 0; i < child.size(); i++) {
 			if (child.get(i) instanceof EditPart) {
 				externalizeText((EditPart) child.get(i), value, key, type);
 			}
 		}
 	}
 }

 /**
  * Create a exception to cancel externalize.
  *
  * @author chenxiaoru
  *
  */
 class returnWizardPage extends Exception {
 	/**
 	 * serialVersionUID
 	 */
 	private static final long serialVersionUID = -4274509502796514787L;

 	returnWizardPage() {
 		super("Return the wizard page");
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2006, 2010 Soyatec (http://www.soyatec.com) and others.
	* 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
	*
	* Contributors:
	* Soyatec - initial API and implementation
	*******************************************************************************/
	package org.eclipse.xwt.tools.ui.designer.wizards;

	import java.io.ByteArrayInputStream;
	import java.io.IOException;
	import java.io.InputStream;
	import java.util.List;

	import org.eclipse.core.resources.IContainer;
	import org.eclipse.core.resources.IFile;
	import org.eclipse.core.resources.IProject;
	import org.eclipse.core.resources.IResource;
	import org.eclipse.core.resources.IncrementalProjectBuilder;
	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.core.runtime.IProgressMonitor;
	import org.eclipse.core.runtime.NullProgressMonitor;
	import org.eclipse.xwt.IConstants;
	import org.eclipse.gef.EditPart;
	import org.eclipse.gef.RootEditPart;
	import org.eclipse.gef.commands.Command;
	import org.eclipse.gef.commands.CompoundCommand;
	import org.eclipse.jdt.core.IJavaElement;
	import org.eclipse.jdt.core.IJavaProject;
	import org.eclipse.jdt.core.IPackageFragment;
	import org.eclipse.jdt.core.IPackageFragmentRoot;
	import org.eclipse.jdt.core.JavaCore;
	import org.eclipse.jdt.core.JavaModelException;
	import org.eclipse.jface.dialogs.MessageDialog;
	import org.eclipse.jface.viewers.ISelection;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.jface.wizard.Wizard;
	import org.eclipse.ui.INewWizard;
	import org.eclipse.ui.IWorkbench;
	import org.eclipse.ui.IWorkbenchPage;
	import org.eclipse.ui.IWorkbenchWizard;
	import org.eclipse.ui.PartInitException;
	import org.eclipse.ui.PlatformUI;
	import org.eclipse.ui.ide.IDE;
	import org.eclipse.xwt.tools.ui.designer.commands.AddNewChildCommand;
	import org.eclipse.xwt.tools.ui.designer.commands.DeleteCommand;
	import org.eclipse.xwt.tools.ui.designer.core.util.DisplayUtil;
	import org.eclipse.xwt.tools.ui.designer.editor.XWTDesigner;
	import org.eclipse.xwt.tools.ui.designer.parts.WidgetEditPart;
	import org.eclipse.xwt.tools.ui.designer.wizards.contents.ProperyContents;
	import org.eclipse.xwt.tools.ui.designer.wizards.contents.SourceContents;
	import org.eclipse.xwt.tools.ui.designer.wizards.models.TextValueEntry;
	import org.eclipse.xwt.tools.ui.designer.wizards.models.TextValueModel;
	import org.eclipse.xwt.tools.ui.designer.wizards.pages.ExternalizeStringsWizardPage;
	import org.eclipse.xwt.tools.ui.xaml.XamlAttribute;
	import org.eclipse.xwt.tools.ui.xaml.XamlElement;
	import org.eclipse.xwt.tools.ui.xaml.XamlFactory;
	import org.eclipse.xwt.tools.ui.xaml.XamlNode;

	/**
	* @author xrchen (xiaoru.chen@soyatec.com)
	*/
	public class ExternalizeStringsWizard extends Wizard implements INewWizard {
	private ExternalizeStringsWizardPage externalizeStringsWizardPage;

	private ISelection selection;

	private TextValueModel textValueEntrys;

	private XWTDesigner designer;

	private String classPerfixName;

	private String classFilePath;

	private String className;

	private String propertyFilePath;

	private String propertyName;

	private TextValueModel checkedItems;

	private boolean openFlag;

	private CompoundCommand commandList;

	/**
	* Constructor for ExternalizeStringsWizard.
	*/
	public ExternalizeStringsWizard(TextValueModel textValueEntrys, XWTDesigner designer) {
	super();
	this.textValueEntrys = textValueEntrys;
	this.designer = designer;
	setNeedsProgressMonitor(true);
	}

	/**
	* Adding the page to the wizard.
	*/
	public void addPages() {
	setWindowTitle("Externalize Strings");
	externalizeStringsWizardPage = new ExternalizeStringsWizardPage(selection, textValueEntrys);
	addPage(externalizeStringsWizardPage);
	getDefaultAccessorContents();
	}

	private void getDefaultAccessorContents() {
	IFile inputFile = designer.getFile();

	IContainer container = inputFile.getParent();
	IJavaElement javaElement = JavaCore.create(container);
	IPackageFragmentRoot defaultRoot = null;
	if (javaElement != null && javaElement.exists()) {
	IJavaProject javaProject = JavaCore.create(inputFile.getProject());
	try {
	IPackageFragmentRoot fragmentRoot[] = javaProject.getAllPackageFragmentRoots();
	for (int i = 0; i < fragmentRoot.length; i++) {
	if (fragmentRoot[i].getKind() == IPackageFragmentRoot.K_SOURCE) {
	defaultRoot = fragmentRoot[i];
	for (IJavaElement element : defaultRoot.getChildren()) {
	if (element.getElementType() == IJavaElement.PACKAGE_FRAGMENT) {
	javaElement = element;
	}
	}
	break;
	}
	}
	} catch (JavaModelException e) {
	e.printStackTrace();
	}
	}
	if (javaElement == null \|\| !(javaElement instanceof IPackageFragment)) {
	String projectName = inputFile.getProject().getName();
	externalizeStringsWizardPage.setErrorMessage("The project " + projectName + " has not source folder.");
	return;
	}

	externalizeStringsWizardPage.setDefaultRoot(defaultRoot);
	externalizeStringsWizardPage.setDefaultFolder(defaultRoot.getResource().getFullPath().toString());
	externalizeStringsWizardPage.setDefaultPackage(javaElement.getElementName());
	}

	/**
	* This method is called when 'Finish' button is pressed in the wizard. We will create an operation and run it using wizard as execution context.
	*/
	public boolean performFinish() {
	classFilePath = externalizeStringsWizardPage.getInfo().getClassFilePath();
	className = externalizeStringsWizardPage.getInfo().getClassName() + ".java";
	propertyFilePath = externalizeStringsWizardPage.getInfo().getPropertyFilePath();
	propertyName = externalizeStringsWizardPage.getInfo().getPropertyName() + ".properties";
	try {
	doFinish(new NullProgressMonitor());
	} catch (CoreException e) {
	e.printStackTrace();
	} catch (IOException e) {
	e.printStackTrace();
	return false;
	} catch (returnWizardPage e) {
	return false;
	}
	return true;
	}

	/**
	* Show a dialog to ask user whether to open the created files.
	*
	* @throws returnWizardPage
	*/
	private void showOpenFileDialog() throws returnWizardPage {
	String dialogMessage = "Do you want to open " + externalizeStringsWizardPage.getInfo().getClassName() + ".java and " + externalizeStringsWizardPage.getInfo().getPropertyName() + ".properties after finish?";
	String[] dialogButtonLabels = { "Open", "Cancel" };
	MessageDialog messageDialog = new MessageDialog(getShell(), "Open created files", null, dialogMessage, MessageDialog.QUESTION, dialogButtonLabels, 1);
	messageDialog.open();
	if (messageDialog.getReturnCode() == 0) {
	openFlag = true;
	} else if (messageDialog.getReturnCode() == -1) {
	throw new returnWizardPage();
	} else {
	openFlag = false;
	}
	}

	/**
	* The worker method. It will find the container, create the file if missing or just replace its nameMap, and open the editor on the newly created file.
	*
	* @param monitor
	* @throws CoreException
	* @throws IOException
	* @throws returnWizardPage
	*/
	private void doFinish(IProgressMonitor monitor) throws CoreException, IOException, returnWizardPage {
	String propertyPerfixName = propertyName.substring(0, propertyName.length() - 11);
	classPerfixName = className.substring(0, className.length() - 5);
	checkedItems = externalizeStringsWizardPage.getCheckedItems();

	showOpenFileDialog();

	// create a property file
	createFile(propertyFilePath, propertyName, propertyPerfixName, false, monitor);
	// create a class file
	createFile(classFilePath, className, propertyPerfixName, true, monitor);
	// externalize string
	final Command changTextCmd = changText();
	DisplayUtil.asyncExec(new Runnable() {
	public void run() {
	RootEditPart rootEditPart = designer.getGraphicalViewer().getRootEditPart();
	rootEditPart.getViewer().getEditDomain().getCommandStack().execute(changTextCmd);
	}
	});
	monitor.worked(1);
	}

	/**
	* Create a file with file path and file name.
	*
	* @param containerName
	* @param fileName
	* @param isClassFile
	* @param monitor
	* @throws CoreException
	* @throws returnWizardPage
	*/
	private void createFile(String containerName, String fileName, String propertyfileName, boolean isClassFile, IProgressMonitor monitor) throws CoreException, returnWizardPage {
	monitor.beginTask("Creating " + fileName, 2);
	final IFile file = ExternalizeStringsCommon.getIFile(containerName, fileName);
	try {
	InputStream stream;
	if (!isClassFile) {
	stream = openPropertyContentStream(checkedItems);
	} else {
	if (file.exists()) {
	// Get the nameMap of the exist file.
	StringBuffer historyContent = ExternalizeStringsCommon
	.getHistoryContents(file);
	// Create inputStream with exist files nameMap.
	stream = openSourceContentStream(checkedItems, containerName, fileName, propertyfileName, historyContent);
	} else {
	// Create a new inputStream.
	stream = openSourceContentStream(checkedItems, containerName, fileName, propertyfileName, null);
	}
	}
	if (file.exists()) {
	if (isClassFile) {
	file.setContents(stream, true, true, monitor);
	} else {
	file.appendContents(stream, true, true, monitor);
	}
	} else {
	file.create(stream, true, monitor);
	}
	stream.close();
	// build class file
	IProject project = file.getProject();
	project.refreshLocal(IResource.DEPTH_INFINITE, monitor);
	project.build(IncrementalProjectBuilder.INCREMENTAL_BUILD, monitor);
	} catch (IOException e) {
	e.printStackTrace();
	}
	if (openFlag) {
	getShell().getDisplay().asyncExec(new Runnable() {
	public void run() {
	IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
	try {
	IDE.openEditor(page, file, true);
	} catch (PartInitException e) {
	e.printStackTrace();
	}
	}
	});
	}
	}

	/**
	* Initialize source file nameMap with a text.
	*/
	private InputStream openSourceContentStream(TextValueModel checkedItems, String containerName, String fileName, String porpertyfileName, StringBuffer historyContent) {
	IPackageFragmentRoot classRoot = externalizeStringsWizardPage.getInfo().getClassRoot();
	SourceContents sourceContents = new SourceContents(checkedItems, containerName, propertyFilePath, fileName, porpertyfileName, historyContent, classRoot);
	String contents = sourceContents.getSourceContents();
	return new ByteArrayInputStream(contents.getBytes());
	}

	/**
	* Initialize property file nameMap with a text.
	*/
	private InputStream openPropertyContentStream(TextValueModel checkedItems) {
	ProperyContents properyContents = new ProperyContents(checkedItems);
	String contents = properyContents.getPropertyContents();
	return new ByteArrayInputStream(contents.getBytes());
	}

	/**
	* We will accept the selection in the workbench to see if we can initialize from it.
	*
	* @see IWorkbenchWizard#init(IWorkbench, IStructuredSelection)
	*/
	public void init(IWorkbench workbench, IStructuredSelection selection) {
	this.selection = selection;
	}

	/**
	* Externalize string.
	*/
	private Command changText() {
	commandList = new CompoundCommand();
	RootEditPart rootEditPart = designer.getGraphicalViewer().getRootEditPart();
	EditPart contents = rootEditPart.getContents();
	Object textValueEntry[] = externalizeStringsWizardPage.getCheckedItems().elements();
	for (int i = 0; i < textValueEntry.length; i++) {
	if (textValueEntry[i] instanceof TextValueEntry) {
	String value = ((TextValueEntry) textValueEntry[i]).getValue();
	String key = ((TextValueEntry) textValueEntry[i]).getKey();
	externalizeText(contents, value, key, "text");
	externalizeText(contents, value, key, "toolTipText");
	}
	}
	return commandList.unwrap();
	}

	/**
	* Change the parent editPart text value to the key.
	*
	* @param editPart
	* @param value
	* @param key
	*/
	private void externalizeText(EditPart editPart, String value, String key, String type) {
	if (editPart instanceof WidgetEditPart) {
	XamlNode node = ((WidgetEditPart) editPart).getCastModel();
	XamlAttribute attribute = node.getAttribute(type, IConstants.XWT_NAMESPACE);
	if (attribute != null) {
	if (value.equals(attribute.getValue())) {

	commandList.add(new DeleteCommand(attribute));
	attribute = null;
	if (attribute == null) {
	attribute = XamlFactory.eINSTANCE.createAttribute(type, IConstants.XWT_NAMESPACE);
	}
	attribute.setUseFlatValue(true);
	XamlElement child = attribute.getChild("Static", IConstants.XWT_X_NAMESPACE);
	if (child == null) {
	child = XamlFactory.eINSTANCE.createElement("Static", IConstants.XWT_X_NAMESPACE);
	}
	String classPakage = externalizeStringsWizardPage.getInfo().getSourcePackage();
	XamlElement childElement = child.getChild(classPerfixName + "." + key, IConstants.XAML_CLR_NAMESPACE_PROTO + classPakage);
	if (childElement != null) {
	child.getChildNodes().remove(childElement);
	}
	childElement = XamlFactory.eINSTANCE.createElement(classPerfixName + "." + key, IConstants.XAML_CLR_NAMESPACE_PROTO + classPakage);

	commandList.add(new AddNewChildCommand(child, childElement));
	commandList.add(new AddNewChildCommand(attribute, child));
	if (!node.getAttributes().contains(attribute)) {
	commandList.add(new AddNewChildCommand(node, attribute));
	}
	}
	}
	if (editPart.getChildren().size() > 0) {
	externalizeChildren(editPart, value, key, type);
	}
	} else if (editPart.getChildren().size() > 0) {
	externalizeChildren(editPart, value, key, type);
	}
	}

	/**
	* Change the editPart's children text value to the key.
	*
	* @param editPart
	*/
	private void externalizeChildren(EditPart editPart, String value, String key, String type) {
	List child = editPart.getChildren();
	for (int i = 0; i < child.size(); i++) {
	if (child.get(i) instanceof EditPart) {
	externalizeText((EditPart) child.get(i), value, key, type);
	}
	}
	}
	}

	/**
	* Create a exception to cancel externalize.
	*
	* @author chenxiaoru
	*
	*/
	class returnWizardPage extends Exception {
	/**
	* serialVersionUID
	*/
	private static final long serialVersionUID = -4274509502796514787L;

	returnWizardPage() {
	super("Return the wizard page");
	}
	}