Java tutorial
/************************************************************************************* * Copyright (c) 2008-2012 Red Hat, 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: * JBoss by Red Hat - Initial implementation. ************************************************************************************/ package org.jboss.tools.as.sourcelookup.ui.actions; import java.io.File; import java.util.zip.ZipFile; import org.eclipse.core.resources.IFile; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.IPath; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.NullProgressMonitor; import org.eclipse.core.runtime.jobs.IJobChangeEvent; import org.eclipse.core.runtime.jobs.IJobChangeListener; import org.eclipse.core.runtime.jobs.Job; import org.eclipse.jdt.core.ClasspathContainerInitializer; import org.eclipse.jdt.core.IClasspathContainer; import org.eclipse.jdt.core.IClasspathEntry; import org.eclipse.jdt.core.IJavaElement; import org.eclipse.jdt.core.IJavaProject; import org.eclipse.jdt.core.IPackageFragmentRoot; import org.eclipse.jdt.core.JavaCore; import org.eclipse.jdt.internal.corext.util.JavaModelUtil; import org.eclipse.jdt.internal.ui.javaeditor.IClassFileEditorInput; import org.eclipse.jdt.internal.ui.wizards.buildpaths.BuildPathSupport; import org.eclipse.jdt.internal.ui.wizards.buildpaths.CPListElement; import org.eclipse.jface.action.IAction; import org.eclipse.jface.viewers.ISelection; import org.eclipse.m2e.core.embedder.ArtifactKey; import org.eclipse.ui.IEditorActionDelegate; import org.eclipse.ui.IEditorPart; import org.jboss.tools.as.sourcelookup.SourceLookupActivator; import org.jboss.tools.as.sourcelookup.containers.JBossSourceContainer; import org.jboss.tools.as.sourcelookup.ui.SourceLookupUIActivator; /** * * @author snjeza * */ public class AttachSourcesActionDelegate implements IEditorActionDelegate { @Override public void run(IAction action) { } @Override public void selectionChanged(IAction action, ISelection selection) { } @Override public void setActiveEditor(IAction action, IEditorPart targetEditor) { if (targetEditor != null) { try { boolean isAuto = SourceLookupActivator.getDefault().isAutoAddSourceContainer(); if (!isAuto) { return; } IClassFileEditorInput input = (IClassFileEditorInput) targetEditor.getEditorInput(); IJavaElement element = input.getClassFile(); while (element.getParent() != null) { element = element.getParent(); if (element instanceof IPackageFragmentRoot) { final IPackageFragmentRoot fragment = (IPackageFragmentRoot) element; IPath attachmentPath = fragment.getSourceAttachmentPath(); if (attachmentPath != null && !attachmentPath.isEmpty() && attachmentPath.toFile().exists()) { break; } if (fragment.isArchive()) { IFile iFile = ResourcesPlugin.getWorkspace().getRoot().getFile(fragment.getPath()); File file = iFile == null || iFile.getLocation() == null ? fragment.getPath().toFile() : iFile.getLocation().toFile(); ZipFile jar = new ZipFile(file); final ArtifactKey artifact = JBossSourceContainer.getArtifact(file, jar); if (artifact != null) { IPath sourcePath = JBossSourceContainer.getSourcePath(artifact); if (sourcePath == null || !sourcePath.toFile().exists()) { Job job = JBossSourceContainer.downloadArtifact(file, artifact); job.addJobChangeListener(new IJobChangeListener() { @Override public void sleeping(IJobChangeEvent event) { } @Override public void scheduled(IJobChangeEvent event) { } @Override public void running(IJobChangeEvent event) { } @Override public void done(IJobChangeEvent event) { IPath sourcePath = JBossSourceContainer.getSourcePath(artifact); if (sourcePath != null && sourcePath.toFile().exists()) { attachSource(fragment, sourcePath); } } @Override public void awake(IJobChangeEvent event) { } @Override public void aboutToRun(IJobChangeEvent event) { } }); job.schedule(); } else { attachSource(fragment, sourcePath); } } } } } } catch (Exception e) { SourceLookupUIActivator.log(e); } } } private void attachSource(IPackageFragmentRoot fragment, IPath newSourcePath) { try { if (fragment == null || fragment.getKind() != IPackageFragmentRoot.K_BINARY) { return; } IPath containerPath = null; IJavaProject jproject = fragment.getJavaProject(); IClasspathEntry entry = fragment.getRawClasspathEntry(); if (entry == null) { entry = JavaCore.newLibraryEntry(fragment.getPath(), null, null); } else { if (entry.getEntryKind() == IClasspathEntry.CPE_CONTAINER) { containerPath = entry.getPath(); ClasspathContainerInitializer initializer = JavaCore .getClasspathContainerInitializer(containerPath.segment(0)); IClasspathContainer container = JavaCore.getClasspathContainer(containerPath, jproject); if (initializer == null || container == null) { return; } IStatus status = initializer.getSourceAttachmentStatus(containerPath, jproject); if (status.getCode() == ClasspathContainerInitializer.ATTRIBUTE_NOT_SUPPORTED) { return; } if (status.getCode() == ClasspathContainerInitializer.ATTRIBUTE_READ_ONLY) { return; } entry = JavaModelUtil.findEntryInContainer(container, fragment.getPath()); if (entry == null) { return; } } } IClasspathEntry entry1; CPListElement elem = CPListElement.createFromExisting(entry, null); elem.setAttribute(CPListElement.SOURCEATTACHMENT, newSourcePath); entry1 = elem.getClasspathEntry(); if (entry1.equals(entry)) { return; } IClasspathEntry newEntry = entry1; String[] changedAttributes = { CPListElement.SOURCEATTACHMENT }; BuildPathSupport.modifyClasspathEntry(null, newEntry, changedAttributes, jproject, containerPath, newEntry.getReferencingEntry() != null, new NullProgressMonitor()); } catch (CoreException e) { // ignore } } }