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1   /**
2    *
3    * Copyright 2005 The Apache Software Foundation
4    *
5    *  Licensed under the Apache License, Version 2.0 (the "License");
6    *  you may not use this file except in compliance with the License.
7    *  You may obtain a copy of the License at
8    *
9    *     http://www.apache.org/licenses/LICENSE-2.0
10   *
11   *  Unless required by applicable law or agreed to in writing, software
12   *  distributed under the License is distributed on an "AS IS" BASIS,
13   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   *  See the License for the specific language governing permissions and
15   *  limitations under the License.
16   */
17  package org.apache.geronimo.kernel.classloader;
18  
19  import java.util.jar.Manifest;
20  import java.util.jar.JarFile;
21  import java.util.jar.JarEntry;
22  import java.net.URL;
23  import java.net.MalformedURLException;
24  import java.io.IOException;
25  
26  /**
27   * @version $Rev: 410741 $ $Date: 2006-05-31 21:35:48 -0700 (Wed, 31 May 2006) $
28   */
29  public class JarResourceLocation extends AbstractUrlResourceLocation  {
30      private final JarFile jarFile;
31  
32      public JarResourceLocation(URL codeSource, JarFile jarFile) {
33          super(codeSource);
34          this.jarFile = jarFile;
35      }
36  
37      public ResourceHandle getResourceHandle(String resourceName) {
38          JarEntry jarEntry = jarFile.getJarEntry(resourceName);
39          if (jarEntry != null) {
40              try {
41                  URL url = new URL(getCodeSource(), resourceName);
42                  return new JarResourceHandle(jarFile, jarEntry, getCodeSource());
43              } catch (MalformedURLException e) {
44              }
45          }
46          return null;
47      }
48  
49      public Manifest getManifest() throws IOException {
50          return jarFile.getManifest();
51      }
52  
53      public void close() {
54          IoUtil.close(jarFile);
55      }
56  }