DirZipBundleEntry


1   /*******************************************************************************
2    * Copyright (c) 2005, 2006 IBM Corporation and others.
3    * All rights reserved. This program and the accompanying materials
4    * are made available under the terms of the Eclipse Public License v1.0
5    * which accompanies this distribution, and is available at
6    * http://www.eclipse.org/legal/epl-v10.html
7    *
8    * Contributors:
9    *     IBM Corporation - initial API and implementation
10   *******************************************************************************/
11  
12  package org.eclipse.osgi.baseadaptor.bundlefile;
13  
14  import java.io.IOException  ;
15  import java.io.InputStream  ;
16  import java.net.MalformedURLException  ;
17  import java.net.URL  ;
18  
19  /**
20   * Represents a directory entry in a ZipBundleFile.  This object is used to 
21   * reference a directory entry in a ZipBundleFile when the directory entries are
22   * not included in the zip file.
23   * @since 3.2
24   */
25  public class DirZipBundleEntry extends BundleEntry {
26  
27      /**
28       * ZipBundleFile for this entry.
29       */
30      private ZipBundleFile bundleFile;
31      /**
32       * The name for this entry
33       */
34      String   name;
35  
36      public DirZipBundleEntry(ZipBundleFile bundleFile, String   name) {
37          this.name = (name.length() > 0 && name.charAt(0) == '/') ? name.substring(1) : name;
38          this.bundleFile = bundleFile;
39      }
40  
41      public InputStream   getInputStream() throws IOException   {
42          return null;
43      }
44  
45      public long getSize() {
46          return 0;
47      }
48  
49      public String   getName() {
50          return name;
51      }
52  
53      public long getTime() {
54          return 0;
55      }
56  
57      public URL   getLocalURL() {
58          try {
59              return new URL  ("jar:file:" + bundleFile.basefile.getAbsolutePath() + "!/" + name); //$NON-NLS-1$ //$NON-NLS-2$
60          } catch (MalformedURLException   e) {
61              //This can not happen, unless the jar protocol is not supported.
62              return null;
63          }
64      }
65  
66      public URL   getFileURL() {
67          try {
68              return bundleFile.extractDirectory(name).toURL();
69          } catch (MalformedURLException   e) {
70              // this cannot happen.
71              return null;
72          }
73      }
74  }
75
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