FileBundleEntry


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.*;
15  import java.net.MalformedURLException  ;
16  import java.net.URL  ;
17  
18  /**
19   * A BundleEntry represented by a File object.  The FileBundleEntry class is
20   * used for bundles that are installed as extracted zips on a file system.
21   * @since 3.2
22   */
23  public class FileBundleEntry extends BundleEntry {
24      /**
25       * File for this entry.
26       */
27      private File file;
28      /**
29       * The name for this entry
30       */
31      String   name;
32  
33      /**
34       * Constructs the BundleEntry using a File.
35       * @param file BundleFile object this entry is a member of
36       * @param name the name of this BundleEntry
37       */
38      FileBundleEntry(File file, String   name) {
39          this.file = file;
40          this.name = name;
41      }
42  
43      /**
44       * Return an InputStream for the entry.
45       *
46       * @return InputStream for the entry
47       * @exception java.io.IOException
48       */
49      public InputStream getInputStream() throws IOException {
50          return BundleFile.secureAction.getFileInputStream(file);
51      }
52  
53      /**
54       * Return size of the uncompressed entry.
55       *
56       * @return size of entry
57       */
58      public long getSize() {
59          return BundleFile.secureAction.length(file);
60      }
61  
62      /**
63       * Return name of the entry.
64       *
65       * @return name of entry
66       */
67      public String   getName() {
68          return (name);
69      }
70  
71      /**
72       * Get the modification time for this BundleEntry.
73       * <p>If the modification time has not been set,
74       * this method will return <tt>-1</tt>.
75       *
76       * @return last modification time.
77       */
78      public long getTime() {
79          return BundleFile.secureAction.lastModified(file);
80      }
81  
82      public URL   getLocalURL() {
83          return getFileURL();
84      }
85  
86      public URL   getFileURL() {
87          try {
88              return file.toURL();
89          } catch (MalformedURLException   e) {
90              return null;
91          }
92      }
93  }
94
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