| /******************************************************************************* |
| * Copyright (c) 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.aspectj.org.eclipse.jdt.internal.core.index; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.net.JarURLConnection; |
| import java.net.URL; |
| import java.util.jar.JarEntry; |
| import java.util.jar.JarFile; |
| |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.Path; |
| |
| public class JarIndexLocation extends IndexLocation { |
| private JarFile jarFile = null; |
| private JarEntry jarEntry = null; |
| private URL localUrl; |
| |
| public JarIndexLocation(URL url, URL localUrl2) { |
| super(url); |
| this.localUrl = localUrl2; |
| } |
| |
| @Override |
| public boolean createNewFile() throws IOException { |
| return false; |
| } |
| |
| @Override |
| public void close() { |
| if (this.jarFile != null) { |
| try { |
| this.jarFile.close(); |
| } catch (IOException e) { |
| // ignore |
| } |
| this.jarFile = null; |
| } |
| } |
| |
| @Override |
| public boolean delete() { |
| return false; |
| } |
| |
| @Override |
| public boolean equals(Object other) { |
| if (!(other instanceof JarIndexLocation)) return false; |
| return this.localUrl.equals(((JarIndexLocation) other).localUrl); |
| } |
| |
| @Override |
| public boolean exists() { |
| try { |
| if (this.jarFile == null) { |
| JarURLConnection connection = (JarURLConnection) this.localUrl.openConnection(); |
| connection.setUseCaches(false); |
| JarFile file = connection.getJarFile(); |
| if (file == null) |
| return false; |
| file.close(); |
| } |
| } catch (IOException e) { |
| return false; |
| } |
| return true; |
| } |
| |
| @Override |
| public String fileName() { |
| return null; |
| } |
| |
| @Override |
| public File getIndexFile() { |
| return null; |
| } |
| |
| @Override |
| InputStream getInputStream() throws IOException { |
| if (this.jarFile == null) { |
| JarURLConnection connection = (JarURLConnection) this.localUrl.openConnection(); |
| connection.setUseCaches(false); |
| this.jarFile = connection.getJarFile(); |
| this.jarEntry = connection.getJarEntry(); |
| } |
| if (this.jarFile == null || this.jarEntry == null) |
| return null; |
| return this.jarFile.getInputStream(this.jarEntry); |
| } |
| |
| @Override |
| public String getCanonicalFilePath() { |
| return null; |
| } |
| |
| @Override |
| public long lastModified() { |
| return -1; |
| } |
| |
| @Override |
| public long length() { |
| return -1; |
| } |
| |
| @Override |
| public boolean startsWith(IPath path) { |
| return (path.isPrefixOf(new Path(this.localUrl.getPath()))); |
| } |
| |
| } |