| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.ui.jarpackager; |
| |
| import java.io.File; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.core.resources.IContainer; |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Shell; |
| |
| import org.eclipse.jface.dialogs.MessageDialog; |
| import org.eclipse.jface.operation.IRunnableContext; |
| |
| import org.eclipse.jdt.core.IJavaElement; |
| import org.eclipse.jdt.core.IType; |
| import org.eclipse.jdt.core.JavaModelException; |
| |
| import org.eclipse.jdt.ui.JavaUI; |
| import org.eclipse.jdt.ui.jarpackager.JarPackageData; |
| |
| import org.eclipse.jdt.internal.corext.util.JavaModelUtil; |
| import org.eclipse.jdt.internal.ui.JavaPlugin; |
| import org.eclipse.jdt.internal.ui.IJavaStatusConstants; |
| |
| /** |
| * Utility for the Jar packager |
| */ |
| public class JarPackagerUtil { |
| |
| // Constants |
| static final String JAR_EXTENSION= "jar"; //$NON-NLS-1$ |
| static final String DESCRIPTION_EXTENSION= "jardesc"; //$NON-NLS-1$ |
| |
| public static boolean askToCreateDirectory(final Shell parent, File directory) { |
| if (parent == null) |
| return false; |
| return queryDialog(parent, JarPackagerMessages.getString("JarPackage.confirmCreate.title"), JarPackagerMessages.getFormattedString("JarPackage.confirmCreate.message", directory.toString())); //$NON-NLS-2$ //$NON-NLS-1$ |
| } |
| |
| /** |
| * Computes and returns the elements as resources. |
| * The underlying resource is used for Java elements. |
| * |
| * @return a List with the selected resources |
| */ |
| public static List asResources(Object[] fSelectedElements) { |
| if (fSelectedElements == null) |
| return null; |
| List selectedResources= new ArrayList(fSelectedElements.length); |
| for (int i= 0; i < fSelectedElements.length; i++) { |
| Object element= fSelectedElements[i]; |
| if (element instanceof IJavaElement) { |
| selectedResources.add(((IJavaElement)element).getResource()); |
| } |
| else if (element instanceof IResource) |
| selectedResources.add(element); |
| } |
| return selectedResources; |
| } |
| |
| public static boolean askForOverwritePermission(final Shell parent, String filePath) { |
| if (parent == null) |
| return false; |
| return queryDialog(parent, JarPackagerMessages.getString("JarPackage.confirmReplace.title"), JarPackagerMessages.getFormattedString("JarPackage.confirmReplace.message", filePath)); //$NON-NLS-2$ //$NON-NLS-1$ |
| } |
| |
| /** |
| * Checks if the manifest file can be overwritten. |
| * If the JAR package setting does not allow to overwrite the manifest |
| * then a dialog will ask the user again. |
| * |
| * @param parent the parent for the dialog, |
| * or <code>null</code> if no dialog should be presented |
| * @return <code>true</code> if it is OK to create the JAR |
| */ |
| static boolean canOverwrite(Shell parent, IFile file) { |
| if (file.isAccessible()) |
| return true; |
| return askForOverwritePermission(parent, file.getFullPath().toString()); |
| } |
| |
| /** |
| * Gets the name of the manifest's main class |
| * |
| * @return a string with the name |
| */ |
| static String getMainClassName(JarPackageData jarPackage) { |
| if (jarPackage.getManifestMainClass() == null) |
| return ""; //$NON-NLS-1$ |
| else |
| return jarPackage.getManifestMainClass().getFullyQualifiedName(); |
| } |
| |
| |
| private static boolean queryDialog(final Shell parent, final String title, final String message) { |
| Display display= parent.getDisplay(); |
| if (display == null || display.isDisposed()) |
| return false; |
| final boolean[] returnValue= new boolean[1]; |
| Runnable runnable= new Runnable() { |
| public void run() { |
| returnValue[0]= MessageDialog.openQuestion(parent, title, message); |
| } |
| }; |
| display.syncExec(runnable); |
| return returnValue[0]; |
| } |
| |
| /** |
| * Creates a <code>CoreException</code> with the given parameters. |
| * |
| * @param message a string with the message |
| * @param ex the exception to be wrapped or <code>null</code> if none |
| * @return a CoreException |
| */ |
| public static CoreException createCoreException(String message, Exception ex) { |
| if (message == null) |
| message= ""; //$NON-NLS-1$ |
| return new CoreException(new Status(IStatus.ERROR, JavaUI.ID_PLUGIN, IJavaStatusConstants.INTERNAL_ERROR, message, ex)); |
| } |
| |
| /** |
| * Returns the parent of the supplied java element that conforms to the given |
| * parent type. |
| * |
| * @return the parent or <code>null</code>, if such a parent exits |
| */ |
| static IJavaElement findParentOfKind(IJavaElement element, int kind) { |
| if (element != null && element.getParent() != null) { |
| return element.getParent().getAncestor(kind); |
| } |
| return null; |
| } |
| |
| /** |
| * Tells whether the specified manifest main class is valid. |
| * |
| * @return <code>true</code> if a main class is specified and valid |
| */ |
| public static boolean isMainClassValid(JarPackageData data, IRunnableContext context) { |
| if (data == null) |
| return false; |
| |
| IType mainClass= data.getManifestMainClass(); |
| if (mainClass == null) |
| // no main class specified |
| return true; |
| |
| try { |
| // Check if main method is in scope |
| IFile file= (IFile)mainClass.getResource(); |
| if (file == null || !contains(asResources(data.getElements()), file)) |
| return false; |
| |
| // Test if it has a main method |
| return JavaModelUtil.hasMainMethod(mainClass); |
| } catch (JavaModelException e) { |
| JavaPlugin.log(e.getStatus()); |
| } |
| return false; |
| } |
| |
| static boolean contains(List resources, IFile file) { |
| if (resources == null || file == null) |
| return false; |
| |
| if (resources.contains(file)) |
| return true; |
| |
| Iterator iter= resources.iterator(); |
| while (iter.hasNext()) { |
| IResource resource= (IResource)iter.next(); |
| if (resource != null && resource.getType() != IResource.FILE) { |
| List children= null; |
| try { |
| children= Arrays.asList(((IContainer)resource).members()); |
| } catch (CoreException ex) { |
| // ignore this folder |
| continue; |
| } |
| if (children != null && contains(children, file)) |
| return true; |
| } |
| } |
| return false; |
| } |
| } |