Java tutorial
/******************************************************************************* * Copyright (c) 2011 LWJGL Project 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, and under the terms of the * BSD license, see http://lwjgl.org/license.php for details. * * Contributors: * Jens von Pilgrim - initial implementation ******************************************************************************/ package org.lwjgl.tools; import java.util.ArrayList; import java.util.List; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.IPath; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Path; import org.eclipse.core.runtime.Status; import org.eclipse.jdt.core.ClasspathContainerInitializer; import org.eclipse.jdt.core.IClasspathAttribute; import org.eclipse.jdt.core.IClasspathContainer; import org.eclipse.jdt.core.IClasspathEntry; import org.eclipse.jdt.core.IJavaModel; import org.eclipse.jdt.core.IJavaProject; import org.eclipse.jdt.core.JavaCore; import org.eclipse.jdt.core.JavaModelException; import org.eclipse.jdt.launching.JavaRuntime; /** * LWJGLClasspathContainerInitializer sets up LWJGL library path. * * Parts of this code were copied and modified from * {@link org.eclipse.jdt.internal.junit.buildpath.JUnitContainerInitializer}, * which is licensed under the EPL as well. * * @author Jens von Pilgrim * @version $Revision$ * @since Dec 5, 2008 */ public class LWJGLClasspathContainerInitializer extends ClasspathContainerInitializer { public static String LWJGL_LIBRARY_ID = "org.lwjgl.LWJGL_CONTAINER"; public static IPath LWJGL_LIBRARY_PATH = new Path(LWJGL_LIBRARY_ID); private static final IStatus NOT_SUPPORTED = new Status(IStatus.ERROR, Activator.PLUGIN_ID, ClasspathContainerInitializer.ATTRIBUTE_NOT_SUPPORTED, new String(), null); private static class LWJGLClasspathContainer implements IClasspathContainer { private final IClasspathEntry[] fEntries; private final IPath fPath; public LWJGLClasspathContainer(IPath path, IClasspathEntry[] entries) { fPath = path; fEntries = entries; } public IClasspathEntry[] getClasspathEntries() { return fEntries; } public String getDescription() { return "LWJGL Libraries"; } public int getKind() { return IClasspathContainer.K_APPLICATION; } public IPath getPath() { return fPath; } } public LWJGLClasspathContainerInitializer() { } /** * {@inheritDoc} * @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 (isValidLWJGLContainerPath(containerPath)) { LWJGLClasspathContainer container = getNewContainer(containerPath); JavaCore.setClasspathContainer(containerPath, new IJavaProject[] { project }, new IClasspathContainer[] { container }, null); } } private static boolean isValidLWJGLContainerPath(IPath path) { return path != null && path.segmentCount() > 0 && LWJGL_LIBRARY_ID.equals(path.segment(0)); } private static LWJGLClasspathContainer getNewContainer(IPath containerPath) { IClasspathEntry[] entries = null; // String version = containerPath.segment(1); entries = BuildPathSupport.getLWJGLLibraryEntries(); if (entries == null) entries = new IClasspathEntry[] {}; return new LWJGLClasspathContainer(containerPath, entries); } /** * {@inheritDoc} * @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; } /** * {@inheritDoc} * @see org.eclipse.jdt.core.ClasspathContainerInitializer#getAccessRulesStatus(org.eclipse.core.runtime.IPath, org.eclipse.jdt.core.IJavaProject) */ public IStatus getAccessRulesStatus(IPath containerPath, IJavaProject project) { return NOT_SUPPORTED; } /** * {@inheritDoc} * @see org.eclipse.jdt.core.ClasspathContainerInitializer#getSourceAttachmentStatus(org.eclipse.core.runtime.IPath, org.eclipse.jdt.core.IJavaProject) */ public IStatus getSourceAttachmentStatus(IPath containerPath, IJavaProject project) { return Status.OK_STATUS; } /** * {@inheritDoc} * @see org.eclipse.jdt.core.ClasspathContainerInitializer#getAttributeStatus(org.eclipse.core.runtime.IPath, org.eclipse.jdt.core.IJavaProject, java.lang.String) */ public IStatus getAttributeStatus(IPath containerPath, IJavaProject project, String attributeKey) { if (attributeKey.equals(IClasspathAttribute.JAVADOC_LOCATION_ATTRIBUTE_NAME)) { return Status.OK_STATUS; } if (attributeKey.equals(JavaRuntime.CLASSPATH_ATTR_LIBRARY_PATH_ENTRY)) { return Status.OK_STATUS; } return NOT_SUPPORTED; } /** * {@inheritDoc} * @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 { IClasspathEntry[] entries = containerSuggestion.getClasspathEntries(); if (entries.length == 1 && isValidLWJGLContainerPath(containerPath)) { // String version = containerPath.segment(1); // only modifiable entry in Javadoc location IClasspathAttribute[] extraAttributes = entries[0].getExtraAttributes(); for (int i = 0; i < extraAttributes.length; i++) { IClasspathAttribute attrib = extraAttributes[i]; if (attrib.getName().equals(IClasspathAttribute.JAVADOC_LOCATION_ATTRIBUTE_NAME)) { break; } } rebindClasspathEntries(project.getJavaModel(), containerPath); } } private static void rebindClasspathEntries(IJavaModel model, IPath containerPath) throws JavaModelException { List<IJavaProject> affectedProjects = new ArrayList<IJavaProject>(); IJavaProject[] projects = model.getJavaProjects(); for (int i = 0; i < projects.length; i++) { IJavaProject project = projects[i]; IClasspathEntry[] entries = project.getRawClasspath(); for (int k = 0; k < entries.length; k++) { IClasspathEntry curr = entries[k]; if (curr.getEntryKind() == IClasspathEntry.CPE_CONTAINER && containerPath.equals(curr.getPath())) { affectedProjects.add(project); } } } if (!affectedProjects.isEmpty()) { IJavaProject[] affected = (IJavaProject[]) affectedProjects .toArray(new IJavaProject[affectedProjects.size()]); IClasspathContainer[] containers = new IClasspathContainer[affected.length]; for (int i = 0; i < containers.length; i++) { containers[i] = getNewContainer(containerPath); } JavaCore.setClasspathContainer(containerPath, affected, containers, null); } } /** * {@inheritDoc} * @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 "LWJGL library settings, including required java libraries " + "(jars) and native libraries."; } /** * {@inheritDoc} * @see org.eclipse.jdt.core.ClasspathContainerInitializer#getComparisonID(org.eclipse.core.runtime.IPath, org.eclipse.jdt.core.IJavaProject) */ public Object getComparisonID(IPath containerPath, IJavaProject project) { return containerPath; } }