Java tutorial
/******************************************************************************* * Copyright (c) 2000, 2012 IBM Corporation 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: * IBM Corporation - initial API and implementation *******************************************************************************/ package org.eclipse.team.internal.ui; import java.io.*; import java.lang.reflect.InvocationTargetException; import java.util.*; import java.util.List; import org.eclipse.core.resources.IProject; import org.eclipse.core.runtime.*; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.osgi.util.NLS; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.widgets.*; import org.eclipse.team.core.*; import org.eclipse.team.internal.core.TeamPlugin; import org.eclipse.ui.*; public class ProjectSetImporter { /** * Imports a psf file based on a file content. This may be used when psf * file is imported from any other location that local filesystem. * * @param psfContents * the content of the psf file. * @param filename * the name of the source file. This is included in case the * provider needs to deduce relative paths * @param shell * @param monitor * @return list of new projects * @throws InvocationTargetException */ public static IProject[] importProjectSetFromString(String psfContents, String filename, Shell shell, IProgressMonitor monitor) throws InvocationTargetException { XMLMemento xmlMemento = stringToXMLMemento(psfContents); return importProjectSet(xmlMemento, filename, shell, monitor); } /** * Imports a psf file. * * @param filename * @param shell * @param monitor * @return list of new projects * @throws InvocationTargetException */ public static IProject[] importProjectSet(String filename, Shell shell, IProgressMonitor monitor) throws InvocationTargetException { XMLMemento xmlMemento = filenameToXMLMemento(filename); return importProjectSet(xmlMemento, filename, shell, monitor); } private static IProject[] importProjectSet(XMLMemento xmlMemento, String filename, Shell shell, IProgressMonitor monitor) throws InvocationTargetException { try { String version = xmlMemento.getString("version"); //$NON-NLS-1$ List newProjects = new ArrayList(); if (version.equals("1.0")) { //$NON-NLS-1$ IProjectSetSerializer serializer = Team.getProjectSetSerializer("versionOneSerializer"); //$NON-NLS-1$ if (serializer != null) { IProject[] projects = serializer.addToWorkspace(new String[0], filename, shell, monitor); if (projects != null) newProjects.addAll(Arrays.asList(projects)); } } else { UIProjectSetSerializationContext context = new UIProjectSetSerializationContext(shell, filename); List errors = new ArrayList(); IMemento[] providers = xmlMemento.getChildren("provider"); //$NON-NLS-1$ for (int i = 0; i < providers.length; i++) { ArrayList referenceStrings = new ArrayList(); IMemento[] projects = providers[i].getChildren("project"); //$NON-NLS-1$ for (int j = 0; j < projects.length; j++) { referenceStrings.add(projects[j].getString("reference")); //$NON-NLS-1$ } try { String id = providers[i].getString("id"); //$NON-NLS-1$ TeamCapabilityHelper.getInstance().processRepositoryId(id, PlatformUI.getWorkbench().getActivitySupport()); RepositoryProviderType providerType = RepositoryProviderType.getProviderType(id); if (providerType == null) { // The provider type is absent. Perhaps there is another provider that can import this type providerType = TeamPlugin.getAliasType(id); } if (providerType == null) { throw new TeamException(new Status(IStatus.ERROR, TeamUIPlugin.ID, 0, NLS.bind(TeamUIMessages.ProjectSetImportWizard_0, new String[] { id }), null)); } ProjectSetCapability serializer = providerType.getProjectSetCapability(); ProjectSetCapability.ensureBackwardsCompatible(providerType, serializer); if (serializer != null) { IProject[] allProjects = serializer.addToWorkspace( (String[]) referenceStrings.toArray(new String[referenceStrings.size()]), context, monitor); if (allProjects != null) newProjects.addAll(Arrays.asList(allProjects)); } } catch (TeamException e) { errors.add(e); } } if (!errors.isEmpty()) { TeamException[] exceptions = (TeamException[]) errors.toArray(new TeamException[errors.size()]); IStatus[] status = new IStatus[exceptions.length]; for (int i = 0; i < exceptions.length; i++) { status[i] = exceptions[i].getStatus(); } throw new TeamException(new MultiStatus(TeamUIPlugin.ID, 0, status, TeamUIMessages.ProjectSetImportWizard_1, null)); } //try working sets IMemento[] sets = xmlMemento.getChildren("workingSets"); //$NON-NLS-1$ IWorkingSetManager wsManager = TeamUIPlugin.getPlugin().getWorkbench().getWorkingSetManager(); boolean replaceAll = false; boolean mergeAll = false; boolean skipAll = false; for (int i = 0; i < sets.length; i++) { IWorkingSet newWs = wsManager.createWorkingSet(sets[i]); if (newWs != null) { IWorkingSet oldWs = wsManager.getWorkingSet(newWs.getName()); if (oldWs == null) { wsManager.addWorkingSet(newWs); } else if (replaceAll) { replaceWorkingSet(wsManager, newWs, oldWs); } else if (mergeAll) { mergeWorkingSets(newWs, oldWs); } else if (!skipAll) { // a working set with the same name has been found String title = TeamUIMessages.ImportProjectSetDialog_duplicatedWorkingSet_title; String msg = NLS.bind( TeamUIMessages.ImportProjectSetDialog_duplicatedWorkingSet_message, newWs.getName()); String[] buttons = new String[] { TeamUIMessages.ImportProjectSetDialog_duplicatedWorkingSet_replace, TeamUIMessages.ImportProjectSetDialog_duplicatedWorkingSet_merge, TeamUIMessages.ImportProjectSetDialog_duplicatedWorkingSet_skip, IDialogConstants.CANCEL_LABEL }; final AdviceDialog dialog = new AdviceDialog(shell, title, null, msg, MessageDialog.QUESTION, buttons, 0); shell.getDisplay().syncExec(new Runnable() { public void run() { dialog.open(); } }); switch (dialog.getReturnCode()) { case 0: // overwrite replaceWorkingSet(wsManager, newWs, oldWs); replaceAll = dialog.applyToAll; break; case 1: // combine mergeWorkingSets(newWs, oldWs); mergeAll = dialog.applyToAll; break; case 2: // skip skipAll = dialog.applyToAll; break; case 3: // cancel default: throw new OperationCanceledException(); } } } } } return (IProject[]) newProjects.toArray(new IProject[newProjects.size()]); } catch (TeamException e) { throw new InvocationTargetException(e); } } private static XMLMemento filenameToXMLMemento(String filename) throws InvocationTargetException { InputStreamReader reader = null; try { reader = new InputStreamReader(new FileInputStream(filename), "UTF-8"); //$NON-NLS-1$ return XMLMemento.createReadRoot(reader); } catch (UnsupportedEncodingException e) { throw new InvocationTargetException(e); } catch (FileNotFoundException e) { throw new InvocationTargetException(e); } catch (WorkbenchException e) { throw new InvocationTargetException(e); } finally { if (reader != null) { try { reader.close(); } catch (IOException e) { throw new InvocationTargetException(e); } } } } private static XMLMemento stringToXMLMemento(String stringContents) throws InvocationTargetException { StringReader reader = null; try { reader = new StringReader(stringContents); return XMLMemento.createReadRoot(reader); } catch (WorkbenchException e) { throw new InvocationTargetException(e); } finally { if (reader != null) { reader.close(); } } } /** * Check if given file is a valid psf file * * @param filename * @return <code>true</code> is file is a valid psf file */ public static boolean isValidProjectSetFile(String filename) { try { return filenameToXMLMemento(filename).getString("version") != null; //$NON-NLS-1$ } catch (InvocationTargetException e) { return false; } } /** * Check if given string is a valid project set * * @param psfContent * @return <code>true</code> if psfContent is a valid project set */ public static boolean isValidProjectSetString(String psfContent) { if (psfContent == null) { return false; } try { return stringToXMLMemento(psfContent).getString("version") != null; //$NON-NLS-1$ } catch (InvocationTargetException e) { return false; } } private static void mergeWorkingSets(IWorkingSet newWs, IWorkingSet oldWs) { IAdaptable[] oldElements = oldWs.getElements(); IAdaptable[] newElements = newWs.getElements(); Set combinedElements = new HashSet(); combinedElements.addAll(Arrays.asList(oldElements)); combinedElements.addAll(Arrays.asList(newElements)); oldWs.setElements((IAdaptable[]) combinedElements.toArray(new IAdaptable[0])); } private static void replaceWorkingSet(IWorkingSetManager wsManager, IWorkingSet newWs, IWorkingSet oldWs) { if (oldWs != null) wsManager.removeWorkingSet(oldWs); wsManager.addWorkingSet(newWs); } private static class AdviceDialog extends MessageDialog { boolean applyToAll; public AdviceDialog(Shell parentShell, String dialogTitle, Image dialogTitleImage, String dialogMessage, int dialogImageType, String[] dialogButtonLabels, int defaultIndex) { super(parentShell, dialogTitle, dialogTitleImage, dialogMessage, dialogImageType, dialogButtonLabels, defaultIndex); } protected Control createCustomArea(Composite parent) { final Button checkBox = new Button(parent, SWT.CHECK); checkBox.setText(TeamUIMessages.ImportProjectSetDialog_duplicatedWorkingSet_applyToAll); checkBox.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { applyToAll = checkBox.getSelection(); } }); return checkBox; } } }