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.io.IOException;
20 import java.io.InputStream;
21 import java.io.File;
22 import java.io.FileInputStream;
23 import java.net.URL;
24 import java.net.MalformedURLException;
25 import java.security.cert.Certificate;
26 import java.util.jar.Attributes;
27 import java.util.jar.Manifest;
28
29 /**
30 * @version $Rev: 410741 $ $Date: 2006-05-31 21:35:48 -0700 (Wed, 31 May 2006) $
31 */
32 public class DirectoryResourceHandle extends AbstractResourceHandle {
33 private final String name;
34 private final File file;
35 private final Manifest manifest;
36 private final URL url;
37 private final URL codeSource;
38
39 public DirectoryResourceHandle(String name, File file, File codeSource, Manifest manifest) throws MalformedURLException {
40 this.name = name;
41 this.file = file;
42 this.codeSource = codeSource.toURL();
43 this.manifest = manifest;
44 url = file.toURL();
45 }
46
47 public String getName() {
48 return name;
49 }
50
51 public URL getUrl() {
52 return url;
53 }
54
55 public URL getCodeSourceUrl() {
56 return codeSource;
57 }
58
59 public boolean isDirectory() {
60 return file.isDirectory();
61 }
62
63 public InputStream getInputStream() throws IOException {
64 if (file.isDirectory()) {
65 return new IoUtil.EmptyInputStream();
66 }
67 return new FileInputStream(file);
68 }
69
70 public int getContentLength() {
71 if (file.isDirectory() || file.length() > Integer.MAX_VALUE) {
72 return -1;
73 } else {
74 return (int) file.length();
75 }
76 }
77
78 public Manifest getManifest() throws IOException {
79 return manifest;
80 }
81
82 public Attributes getAttributes() throws IOException {
83 if (manifest == null) {
84 return null;
85 }
86 return manifest.getAttributes(getName());
87 }
88
89 /**
90 * Always return null. This could be implementd by verifing the signatures
91 * in the manifest file against the actual file, but we don't need this right now.
92 * @return null
93 */
94 public Certificate[] getCertificates() {
95 return null;
96 }
97 }