Java tutorial
/******************************************************************************* * Copyright (c) 2003, 2011 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.jst.server.core.internal; import java.util.ArrayList; import java.util.List; import org.eclipse.core.resources.IProject; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.*; import org.eclipse.core.runtime.jobs.Job; import org.eclipse.jdt.core.*; import org.eclipse.osgi.util.NLS; import org.eclipse.wst.server.core.IRuntime; import org.eclipse.wst.server.core.ServerCore; import org.eclipse.wst.server.core.ServerUtil; /** * */ public class RuntimeClasspathContainerInitializer extends ClasspathContainerInitializer { /** (non-Javadoc) * @see org.eclipse.jdt.core.ClasspathContainerInitializer#initialize(org.eclipse.core.runtime.IPath, org.eclipse.jdt.core.IJavaProject) */ public void initialize(IPath containerPath, IJavaProject project) throws CoreException { if (containerPath.segmentCount() > 0) { if (containerPath.segment(0).equals(RuntimeClasspathContainer.SERVER_CONTAINER)) { RuntimeClasspathProviderWrapper delegate = null; IRuntime runtime = null; String runtimeId = null; if (containerPath.segmentCount() > 2) { delegate = JavaServerPlugin.findRuntimeClasspathProvider(containerPath.segment(1)); runtimeId = containerPath.segment(2); if (runtimeId != null) runtime = ServerCore.findRuntime(runtimeId); } RuntimeClasspathContainer container = new RuntimeClasspathContainer(project.getProject(), containerPath, delegate, runtime, runtimeId); JavaCore.setClasspathContainer(containerPath, new IJavaProject[] { project }, new IClasspathContainer[] { container }, null); } } } /** (non-Javadoc) * @see org.eclipse.jdt.core.ClasspathContainerInitializer#getDescription(org.eclipse.core.runtime.IPath, org.eclipse.jdt.core.IJavaProject) */ public String getDescription(IPath containerPath, IJavaProject project) { return Messages.classpathContainerDescription; } /** (non-Javadoc) * @see org.eclipse.jdt.core.ClasspathContainerInitializer#canUpdateClasspathContainer(org.eclipse.core.runtime.IPath, org.eclipse.jdt.core.IJavaProject) */ public boolean canUpdateClasspathContainer(IPath containerPath, IJavaProject project) { return true; } /** (non-Javadoc) * @see org.eclipse.jdt.core.ClasspathContainerInitializer#requestClasspathContainerUpdate(org.eclipse.core.runtime.IPath, org.eclipse.jdt.core.IJavaProject, org.eclipse.jdt.core.IClasspathContainer) */ public void requestClasspathContainerUpdate(IPath containerPath, IJavaProject project, IClasspathContainer containerSuggestion) throws CoreException { if (containerPath.segmentCount() > 0) { if (containerPath.segment(0).equals(RuntimeClasspathContainer.SERVER_CONTAINER)) { RuntimeClasspathProviderWrapper delegate = null; IRuntime runtime = null; if (containerPath.segmentCount() > 2) { delegate = JavaServerPlugin.findRuntimeClasspathProvider(containerPath.segment(1)); String runtimeId = containerPath.segment(2); if (runtimeId != null) runtime = ServerCore.findRuntime(runtimeId); delegate.requestClasspathContainerUpdate(runtime, containerSuggestion.getClasspathEntries()); //JavaCore.setClasspathContainer(containerPath, new IJavaProject[] { project }, // new IClasspathContainer[] { containerSuggestion }, new NullProgressMonitor()); updateClasspath(runtime, containerPath, containerSuggestion); } } } } public static void updateClasspath(final IRuntime runtime, final IPath containerPath, final IClasspathContainer containerSuggestion) { class UpdateClasspathJob extends Job { public UpdateClasspathJob() { super(NLS.bind(Messages.updateClasspathContainers, runtime.getName())); } public boolean belongsTo(Object family) { return ServerUtil.SERVER_JOB_FAMILY.equals(family); } public IStatus run(IProgressMonitor monitor) { IProject[] projects = ResourcesPlugin.getWorkspace().getRoot().getProjects(); List<IJavaProject> list = new ArrayList<IJavaProject>(); if (projects != null) { for (IProject project : projects) { if (project.isAccessible()) { try { if (!project.isNatureEnabled(JavaCore.NATURE_ID)) continue; IJavaProject javaProject = JavaCore.create(project); boolean found = false; IClasspathEntry[] ce = javaProject.getRawClasspath(); for (IClasspathEntry cp : ce) { if (cp.getEntryKind() == IClasspathEntry.CPE_CONTAINER) { if (containerPath.isPrefixOf(cp.getPath())) found = true; } } if (Trace.FINEST) { Trace.trace(Trace.STRING_FINEST, "Classpath change on: " + project + " " + found); } if (found) list.add(javaProject); } catch (Exception e) { if (Trace.SEVERE) { Trace.trace(Trace.STRING_SEVERE, "Could not update classpath container", e); } } } } } int size = list.size(); if (size > 0) { IJavaProject[] javaProjects = new IJavaProject[size]; list.toArray(javaProjects); IClasspathContainer[] containers = new IClasspathContainer[size]; for (int i = 0; i < size; i++) containers[i] = containerSuggestion; try { JavaCore.setClasspathContainer(containerPath, javaProjects, containers, monitor); } catch (JavaModelException jme) { return jme.getStatus(); } } return Status.OK_STATUS; } } UpdateClasspathJob job = new UpdateClasspathJob(); job.schedule(); } /** (non-Javadoc) * @see org.eclipse.jdt.core.ClasspathContainerInitializer#getComparisonID(org.eclipse.core.runtime.IPath, org.eclipse.jdt.core.IJavaProject) */ public Object getComparisonID(IPath containerPath, IJavaProject project) { if (containerPath == null) return null; return containerPath.toPortableString(); } }