| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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.jdt.internal.core.builder; |
| |
| import org.eclipse.core.resources.*; |
| import org.eclipse.core.runtime.*; |
| |
| import org.eclipse.jdt.internal.compiler.classfmt.ClassFileReader; |
| import org.eclipse.jdt.internal.compiler.env.AccessRuleSet; |
| import org.eclipse.jdt.internal.compiler.env.NameEnvironmentAnswer; |
| import org.eclipse.jdt.internal.compiler.util.SimpleLookupTable; |
| |
| public class ClasspathDirectory extends ClasspathLocation { |
| |
| IContainer binaryFolder; // includes .class files for a single directory |
| boolean isOutputFolder; |
| String binaryLocation; |
| SimpleLookupTable directoryCache; |
| String[] missingPackageHolder = new String[1]; |
| AccessRuleSet accessRuleSet; |
| |
| ClasspathDirectory(IContainer binaryFolder, boolean isOutputFolder, AccessRuleSet accessRuleSet) { |
| this.binaryFolder = binaryFolder; |
| this.isOutputFolder = isOutputFolder; |
| IPath location = binaryFolder.getLocation(); |
| this.binaryLocation = location != null ? location.addTrailingSeparator().toString() : ""; //$NON-NLS-1$ |
| this.directoryCache = new SimpleLookupTable(5); |
| this.accessRuleSet = accessRuleSet; |
| } |
| |
| public void cleanup() { |
| this.directoryCache = null; |
| } |
| |
| String[] directoryList(String qualifiedPackageName) { |
| String[] dirList = (String[]) directoryCache.get(qualifiedPackageName); |
| if (dirList == missingPackageHolder) return null; // package exists in another classpath directory or jar |
| if (dirList != null) return dirList; |
| |
| try { |
| IResource container = binaryFolder.findMember(qualifiedPackageName); // this is a case-sensitive check |
| if (container instanceof IContainer && !isExcluded(container)) { |
| IResource[] members = ((IContainer) container).members(); |
| dirList = new String[members.length]; |
| int index = 0; |
| for (int i = 0, l = members.length; i < l; i++) { |
| IResource m = members[i]; |
| if (m.getType() == IResource.FILE && org.eclipse.jdt.internal.compiler.util.Util.isClassFileName(m.getName())) |
| // add exclusion pattern check here if we want to hide .class files |
| dirList[index++] = m.getName(); |
| } |
| if (index < dirList.length) |
| System.arraycopy(dirList, 0, dirList = new String[index], 0, index); |
| directoryCache.put(qualifiedPackageName, dirList); |
| return dirList; |
| } |
| } catch(CoreException ignored) { |
| // ignore |
| } |
| directoryCache.put(qualifiedPackageName, missingPackageHolder); |
| return null; |
| } |
| |
| boolean doesFileExist(String fileName, String qualifiedPackageName, String qualifiedFullName) { |
| String[] dirList = directoryList(qualifiedPackageName); |
| if (dirList == null) return false; // most common case |
| |
| for (int i = dirList.length; --i >= 0;) |
| if (fileName.equals(dirList[i])) |
| return true; |
| return false; |
| } |
| |
| public boolean equals(Object o) { |
| if (this == o) return true; |
| if (!(o instanceof ClasspathDirectory)) return false; |
| |
| ClasspathDirectory dir = (ClasspathDirectory) o; |
| if (this.accessRuleSet != dir.accessRuleSet) |
| if (this.accessRuleSet == null || !this.accessRuleSet.equals(dir.accessRuleSet)) |
| return false; |
| return this.binaryFolder.equals(dir.binaryFolder); |
| } |
| |
| public NameEnvironmentAnswer findClass(String binaryFileName, String qualifiedPackageName, String qualifiedBinaryFileName) { |
| if (!doesFileExist(binaryFileName, qualifiedPackageName, qualifiedBinaryFileName)) return null; // most common case |
| |
| try { |
| ClassFileReader reader = ClassFileReader.read(binaryLocation + qualifiedBinaryFileName); |
| if (reader != null) { |
| if (this.accessRuleSet == null) |
| return new NameEnvironmentAnswer(reader, null); |
| return new NameEnvironmentAnswer(reader, this.accessRuleSet.getViolatedRestriction(qualifiedBinaryFileName.toCharArray())); |
| } |
| } catch (Exception e) { |
| // handle the case when the project is the output folder and the top-level package is a linked folder |
| if (binaryFolder instanceof IProject) { |
| IResource file = binaryFolder.findMember(qualifiedBinaryFileName); |
| if (file instanceof IFile) { |
| IPath location = file.getLocation(); |
| if (location != null) { |
| try { |
| ClassFileReader reader = ClassFileReader.read(location.toString()); |
| if (reader != null) { |
| if (this.accessRuleSet == null) |
| return new NameEnvironmentAnswer(reader, null); |
| return new NameEnvironmentAnswer(reader, this.accessRuleSet.getViolatedRestriction(qualifiedBinaryFileName.toCharArray())); |
| } |
| } catch (Exception ignored) { // treat as if class file is missing |
| } |
| } |
| } |
| } |
| } |
| return null; |
| } |
| |
| public IPath getProjectRelativePath() { |
| return binaryFolder.getProjectRelativePath(); |
| } |
| |
| protected boolean isExcluded(IResource resource) { |
| return false; |
| } |
| |
| public boolean isOutputFolder() { |
| return isOutputFolder; |
| } |
| |
| public boolean isPackage(String qualifiedPackageName) { |
| return directoryList(qualifiedPackageName) != null; |
| } |
| |
| public void reset() { |
| this.directoryCache = new SimpleLookupTable(5); |
| } |
| |
| public String toString() { |
| String start = "Binary classpath directory " + this.binaryFolder.getFullPath().toString(); //$NON-NLS-1$ |
| if (this.accessRuleSet == null) |
| return start; |
| return start + " with " + this.accessRuleSet; //$NON-NLS-1$ |
| } |
| } |