Java tutorial
/******************************************************************************* * Copyright (c) 2009, 2015 Xored Software Inc 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: * Xored Software Inc - initial API and implementation and/or initial documentation *******************************************************************************/ package org.eclipse.rcptt.ui.dialogs; import java.util.Arrays; import java.util.List; import org.eclipse.core.resources.IWorkspaceRunnable; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.core.runtime.SubProgressMonitor; import org.eclipse.core.runtime.jobs.Job; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.dialogs.MessageDialogWithToggle; import org.eclipse.jface.preference.IPreferenceStore; import org.eclipse.rcptt.core.model.IQ7NamedElement; import org.eclipse.rcptt.core.model.IQ7Project; import org.eclipse.rcptt.core.model.IQ7ProjectMetadata; import org.eclipse.rcptt.core.scenario.GroupContext; import org.eclipse.rcptt.core.scenario.NamedElement; import org.eclipse.rcptt.core.scenario.Scenario; import org.eclipse.rcptt.internal.ui.Q7UIPlugin; import org.eclipse.rcptt.ui.preferences.IPreferenceKeys; import org.eclipse.rcptt.ui.utils.WriteAccessChecker; import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.Shell; public class RemoveAllProjectReferencesDialog extends MessageDialogWithToggle { private static IPreferenceStore prefStore = Q7UIPlugin.getDefault().getPreferenceStore(); private final List<IQ7NamedElement> references; private final IQ7Project project; private static RemoveAllProjectReferencesDialog instance; public static boolean open(Shell parentShell, IQ7Project project, List<IQ7NamedElement> elements) { String value = prefStore.getString(IPreferenceKeys.ALL_REMOVE_PROJECT_REFERENCES); if (ALWAYS.equals(value)) { addMissingReferences(project, elements); return true; } else { if (instance != null && instance.getShell() != null && !instance.getShell().isDisposed()) { // Is still running return false; } instance = new RemoveAllProjectReferencesDialog(parentShell, project, elements); return instance.open() == IDialogConstants.YES_ID; } } private RemoveAllProjectReferencesDialog(Shell parentShell, IQ7Project project, List<IQ7NamedElement> references) { super(parentShell, "Project Context and Verification References", null, null, MessageDialog.NONE, new String[] { IDialogConstants.YES_LABEL, IDialogConstants.NO_LABEL }, 0, "Always remove default project context and verification references automatically.", false); this.project = project; this.references = references; this.message = generateMessage(references); setShellStyle(SWT.SHEET); } private String generateMessage(List<IQ7NamedElement> references) { StringBuilder label = new StringBuilder( "Would you like to remove default project context/verification references from " + references.size() + " elements?\n\n"); // try { // for (IQ7NamedElement e : references) { // label.append(" ").append(e.getNamedElement().getName()).append(" (").append(e.getPath()).append(")").append("\n"); //$NON-NLS-1$ //$NON-NLS-2$ // } // } catch (ModelException e) { // Q7UIPlugin.log(e); // } return label.toString(); } @Override protected void buttonPressed(int buttonId) { if (buttonId == IDialogConstants.YES_ID) { addMissingReferences(project, references); } if (getToggleState()) { prefStore.setValue(IPreferenceKeys.ALL_REMOVE_PROJECT_REFERENCES, ALWAYS); } setReturnCode(buttonId); close(); } private static void addMissingReferences(final IQ7Project project, final List<IQ7NamedElement> references) { Job job = new Job("Fix project references") { @Override protected IStatus run(IProgressMonitor monitor) { final IStatus[] status = { Status.OK_STATUS }; try { monitor.beginTask("Remove project context/verification references", references.size() * 2); IQ7ProjectMetadata metadata = project.getMetadata(); if (metadata == null || !metadata.exists()) { return status[0]; } String[] defaultContexts = metadata.getContexts(); String[] defaultVerifications = metadata.getVerifications(); if (defaultContexts.length == 0 && defaultVerifications.length == 0) { return status[0]; } final List<String> contextsToRemove = Arrays.asList(defaultContexts); final List<String> verificationsToRemove = Arrays.asList(defaultVerifications); ResourcesPlugin.getWorkspace().run(new IWorkspaceRunnable() { public void run(IProgressMonitor monitor) throws CoreException { WriteAccessChecker writeAccessChecker = new WriteAccessChecker(instance.getShell()); if (!writeAccessChecker .makeResourceWritable(references.toArray(new IQ7NamedElement[0]))) { status[0] = Status.CANCEL_STATUS; return; } for (IQ7NamedElement e : references) { IQ7NamedElement copy = e.getWorkingCopy(new SubProgressMonitor(monitor, 1)); try { NamedElement ne = copy.getNamedElement(); if (ne instanceof Scenario) { ((Scenario) ne).getContexts().removeAll(contextsToRemove); ((Scenario) ne).getVerifications().removeAll(verificationsToRemove); } if (ne instanceof GroupContext) { ((GroupContext) ne).getContextReferences().removeAll(contextsToRemove); } copy.commitWorkingCopy(false, new SubProgressMonitor(monitor, 1)); } finally { copy.discardWorkingCopy(); } } } }, monitor); } catch (CoreException e) { return e.getStatus(); } return status[0]; } }; job.setUser(true); job.schedule(); } }