01: /*
02: * Copyright (c) 2001-2007, Jean Tessier
03: * All rights reserved.
04: *
05: * Redistribution and use in source and binary forms, with or without
06: * modification, are permitted provided that the following conditions
07: * are met:
08: *
09: * * Redistributions of source code must retain the above copyright
10: * notice, this list of conditions and the following disclaimer.
11: *
12: * * Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: *
16: * * Neither the name of Jean Tessier nor the names of his contributors
17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21: * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22: * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23: * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR
24: * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
27: * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
28: * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
29: * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
30: * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31: */
32:
33: package com.jeantessier.classreader;
34:
35: import java.io.*;
36: import java.util.jar.*;
37:
38: import org.apache.log4j.*;
39:
40: public class JarClassfileLoader extends ZipClassfileLoader {
41: public JarClassfileLoader(ClassfileLoader loader) {
42: super (loader);
43: }
44:
45: protected void load(String filename) {
46: Logger.getLogger(getClass()).debug("Reading " + filename);
47:
48: JarFile jarfile = null;
49: try {
50: jarfile = new JarFile(filename);
51:
52: fireBeginGroup(filename, jarfile.size());
53: load(jarfile);
54: fireEndGroup(filename);
55: } catch (IOException ex) {
56: Logger.getLogger(getClass()).error(
57: "Cannot load JAR file \"" + filename + "\"", ex);
58: } finally {
59: if (jarfile != null) {
60: try {
61: jarfile.close();
62: } catch (IOException ex) {
63: // Ignore
64: }
65: }
66: }
67: }
68:
69: protected void load(String filename, InputStream in) {
70: Logger.getLogger(getClass()).debug("Reading " + filename);
71:
72: JarInputStream jarfile = null;
73: try {
74: jarfile = new JarInputStream(in);
75:
76: fireBeginGroup(filename, -1);
77: load(jarfile);
78: fireEndGroup(filename);
79: } catch (IOException ex) {
80: Logger.getLogger(getClass()).error(
81: "Cannot load JAR file \"" + filename + "\"", ex);
82: } finally {
83: if (jarfile != null) {
84: try {
85: jarfile.close();
86: } catch (IOException ex) {
87: // Ignore
88: }
89: }
90: }
91: }
92: }
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