| /******************************************************************************* |
| * Copyright (c) 2000, 2013 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 |
| * Nikolay Botev - Bug 348507 |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.core.search; |
| |
| import java.util.HashMap; |
| import java.util.LinkedHashSet; |
| import java.util.Set; |
| |
| import org.eclipse.core.resources.IFolder; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.Path; |
| import org.eclipse.jdt.core.IClasspathEntry; |
| import org.eclipse.jdt.core.IJavaElement; |
| import org.eclipse.jdt.core.IJavaElementDelta; |
| import org.eclipse.jdt.core.IJavaProject; |
| import org.eclipse.jdt.core.IPackageFragmentRoot; |
| import org.eclipse.jdt.core.JavaModelException; |
| import org.eclipse.jdt.internal.compiler.env.AccessRuleSet; |
| import org.eclipse.jdt.internal.core.DeltaProcessor; |
| import org.eclipse.jdt.internal.core.ExternalFoldersManager; |
| import org.eclipse.jdt.internal.core.JavaModel; |
| import org.eclipse.jdt.internal.core.JavaModelManager; |
| import org.eclipse.jdt.internal.core.JavaProject; |
| import org.eclipse.jdt.internal.core.util.Util; |
| |
| /** |
| * A Java-specific scope for searching the entire workspace. |
| * The scope can be configured to not search binaries. By default, binaries |
| * are included. |
| */ |
| @SuppressWarnings({"rawtypes", "unchecked"}) |
| public class JavaWorkspaceScope extends AbstractJavaSearchScope { |
| |
| private IPath[] enclosingPaths = null; |
| |
| public JavaWorkspaceScope() { |
| // As nothing is stored in the JavaWorkspaceScope now, no initialization is longer needed |
| } |
| |
| @Override |
| public boolean encloses(IJavaElement element) { |
| /*A workspace scope encloses all java elements (this assumes that the index selector |
| * and thus enclosingProjectAndJars() returns indexes on the classpath only and that these |
| * indexes are consistent.) |
| * NOTE: Returning true gains 20% of a hierarchy build on Object |
| */ |
| return true; |
| } |
| @Override |
| public boolean encloses(String resourcePathString) { |
| /*A workspace scope encloses all resources (this assumes that the index selector |
| * and thus enclosingProjectAndJars() returns indexes on the classpath only and that these |
| * indexes are consistent.) |
| * NOTE: Returning true gains 20% of a hierarchy build on Object |
| */ |
| return true; |
| } |
| |
| @Override |
| public IPath[] enclosingProjectsAndJars() { |
| IPath[] result = this.enclosingPaths; |
| if (result != null) { |
| return result; |
| } |
| long start = BasicSearchEngine.VERBOSE ? System.currentTimeMillis() : -1; |
| try { |
| IJavaProject[] projects = JavaModelManager.getJavaModelManager().getJavaModel().getJavaProjects(); |
| // use a linked set to preserve the order during search: see bug 348507 |
| Set paths = new LinkedHashSet(projects.length * 2); |
| for (int i = 0, length = projects.length; i < length; i++) { |
| JavaProject javaProject = (JavaProject) projects[i]; |
| |
| // Add project full path |
| IPath projectPath = javaProject.getProject().getFullPath(); |
| paths.add(projectPath); |
| } |
| |
| // add the project source paths first in a separate loop above |
| // to ensure source files always get higher precedence during search. |
| // see bug 348507 |
| |
| for (int i = 0, length = projects.length; i < length; i++) { |
| JavaProject javaProject = (JavaProject) projects[i]; |
| |
| // Add project libraries paths |
| IClasspathEntry[] entries = javaProject.getResolvedClasspath(); |
| for (int j = 0, eLength = entries.length; j < eLength; j++) { |
| IClasspathEntry entry = entries[j]; |
| if (entry.getEntryKind() == IClasspathEntry.CPE_LIBRARY) { |
| IPath path = entry.getPath(); |
| Object target = JavaModel.getTarget(path, false/*don't check existence*/); |
| if (target instanceof IFolder) // case of an external folder |
| path = ((IFolder) target).getFullPath(); |
| paths.add(entry.getPath()); |
| } |
| } |
| } |
| result = new IPath[paths.size()]; |
| paths.toArray(result); |
| return this.enclosingPaths = result; |
| } catch (JavaModelException e) { |
| Util.log(e, "Exception while computing workspace scope's enclosing projects and jars"); //$NON-NLS-1$ |
| return new IPath[0]; |
| } finally { |
| if (BasicSearchEngine.VERBOSE) { |
| long time = System.currentTimeMillis() - start; |
| int length = result == null ? 0 : result.length; |
| Util.verbose("JavaWorkspaceScope.enclosingProjectsAndJars: "+length+" paths computed in "+time+"ms."); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| } |
| } |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| return o == this; // use the singleton pattern |
| } |
| |
| @Override |
| public AccessRuleSet getAccessRuleSet(String relativePath, String containerPath) { |
| // Do not consider access rules on workspace scope |
| return null; |
| } |
| |
| @Override |
| public int hashCode() { |
| return JavaWorkspaceScope.class.hashCode(); |
| } |
| |
| /** |
| * @see AbstractJavaSearchScope#packageFragmentRoot(String, int, String) |
| */ |
| @Override |
| public IPackageFragmentRoot packageFragmentRoot(String resourcePathString, int jarSeparatorIndex, String jarPath) { |
| HashMap rootInfos = JavaModelManager.getDeltaState().roots; |
| DeltaProcessor.RootInfo rootInfo = null; |
| if (jarPath != null) { |
| IPath path = new Path(jarPath); |
| rootInfo = (DeltaProcessor.RootInfo) rootInfos.get(path); |
| } else { |
| IPath path = new Path(resourcePathString); |
| if (ExternalFoldersManager.isInternalPathForExternalFolder(path)) { |
| IResource resource = JavaModel.getWorkspaceTarget(path.uptoSegment(2/*linked folders for external folders are always of size 2*/)); |
| if (resource != null) |
| rootInfo = (DeltaProcessor.RootInfo) rootInfos.get(resource.getLocation()); |
| } else { |
| rootInfo = (DeltaProcessor.RootInfo) rootInfos.get(path); |
| while (rootInfo == null && path.segmentCount() > 0) { |
| path = path.removeLastSegments(1); |
| rootInfo = (DeltaProcessor.RootInfo) rootInfos.get(path); |
| } |
| } |
| } |
| if (rootInfo == null) |
| return null; |
| return rootInfo.getPackageFragmentRoot(null/*no resource hint*/); |
| } |
| |
| @Override |
| public void processDelta(IJavaElementDelta delta, int eventType) { |
| if (this.enclosingPaths == null) return; |
| IJavaElement element = delta.getElement(); |
| switch (element.getElementType()) { |
| case IJavaElement.JAVA_MODEL: |
| IJavaElementDelta[] children = delta.getAffectedChildren(); |
| for (int i = 0, length = children.length; i < length; i++) { |
| IJavaElementDelta child = children[i]; |
| processDelta(child, eventType); |
| } |
| break; |
| case IJavaElement.JAVA_PROJECT: |
| int kind = delta.getKind(); |
| switch (kind) { |
| case IJavaElementDelta.ADDED: |
| case IJavaElementDelta.REMOVED: |
| this.enclosingPaths = null; |
| break; |
| case IJavaElementDelta.CHANGED: |
| int flags = delta.getFlags(); |
| if ((flags & IJavaElementDelta.F_CLOSED) != 0 |
| || (flags & IJavaElementDelta.F_OPENED) != 0) { |
| this.enclosingPaths = null; |
| } else { |
| children = delta.getAffectedChildren(); |
| for (int i = 0, length = children.length; i < length; i++) { |
| IJavaElementDelta child = children[i]; |
| processDelta(child, eventType); |
| } |
| } |
| break; |
| } |
| break; |
| case IJavaElement.PACKAGE_FRAGMENT_ROOT: |
| kind = delta.getKind(); |
| switch (kind) { |
| case IJavaElementDelta.ADDED: |
| case IJavaElementDelta.REMOVED: |
| this.enclosingPaths = null; |
| break; |
| case IJavaElementDelta.CHANGED: |
| int flags = delta.getFlags(); |
| if ((flags & IJavaElementDelta.F_ADDED_TO_CLASSPATH) > 0 |
| || (flags & IJavaElementDelta.F_REMOVED_FROM_CLASSPATH) > 0) { |
| this.enclosingPaths = null; |
| } |
| break; |
| } |
| break; |
| } |
| } |
| |
| |
| @Override |
| public String toString() { |
| StringBuffer result = new StringBuffer("JavaWorkspaceScope on "); //$NON-NLS-1$ |
| IPath[] paths = enclosingProjectsAndJars(); |
| int length = paths == null ? 0 : paths.length; |
| if (length == 0) { |
| result.append("[empty scope]"); //$NON-NLS-1$ |
| } else { |
| result.append("["); //$NON-NLS-1$ |
| for (int i = 0; i < length; i++) { |
| result.append("\n\t"); //$NON-NLS-1$ |
| result.append(paths[i]); |
| } |
| result.append("\n]"); //$NON-NLS-1$ |
| } |
| return result.toString(); |
| } |
| } |