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.security.cert.Certificate;
22 import java.util.jar.Attributes;
23 import java.util.jar.Manifest;
24
25 /**
26 * @version $Rev: 410741 $ $Date: 2006-05-31 21:35:48 -0700 (Wed, 31 May 2006) $
27 */
28 public abstract class AbstractResourceHandle implements ResourceHandle {
29 public byte[] getBytes() throws IOException {
30 InputStream in = getInputStream();
31 try {
32 byte[] bytes = IoUtil.getBytes(in);
33 return bytes;
34 } finally {
35 IoUtil.close(in);
36 }
37 }
38
39 public Manifest getManifest() throws IOException {
40 return null;
41 }
42
43 public Certificate[] getCertificates() {
44 return null;
45 }
46
47 public Attributes getAttributes() throws IOException {
48 Manifest m = getManifest();
49 if (m == null) {
50 return null;
51 }
52
53 String entry = getUrl().getFile();
54 return m.getAttributes(entry);
55 }
56
57 public void close() {
58 }
59
60 public String toString() {
61 return "[" + getName() + ": " + getUrl() + "; code source: " + getCodeSourceUrl() + "]";
62 }
63 }