001/**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.xbean.classloader;
018
019import java.util.jar.Manifest;
020import java.util.jar.JarFile;
021import java.util.jar.JarEntry;
022import java.net.URL;
023import java.net.MalformedURLException;
024import java.io.IOException;
025
026/**
027 * @version $Rev: 437551 $ $Date: 2006-08-28 08:14:47 +0200 (Mon, 28 Aug 2006) $
028 */
029public class JarResourceLocation extends AbstractUrlResourceLocation  {
030    private final JarFile jarFile;
031
032    public JarResourceLocation(URL codeSource, JarFile jarFile) {
033        super(codeSource);
034        this.jarFile = jarFile;
035    }
036
037    public ResourceHandle getResourceHandle(String resourceName) {
038        JarEntry jarEntry = jarFile.getJarEntry(resourceName);
039        if (jarEntry != null) {
040            try {
041                URL url = new URL(getCodeSource(), resourceName);
042                return new JarResourceHandle(jarFile, jarEntry, getCodeSource());
043            } catch (MalformedURLException e) {
044            }
045        }
046        return null;
047    }
048
049    public Manifest getManifest() throws IOException {
050        return jarFile.getManifest();
051    }
052
053    public void close() {
054        IoUtil.close(jarFile);
055    }
056}