1 /**
2 * Copyright (c) 2004-2011 QOS.ch
3 * All rights reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be
14 * included in all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
20 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 *
24 */
25 package org.slf4j.issue;
26
27 import java.io.ByteArrayInputStream;
28 import java.io.ByteArrayOutputStream;
29 import java.io.IOException;
30 import java.io.InputStream;
31 import java.io.ObjectInputStream;
32 import java.io.ObjectOutputStream;
33 import java.io.Serializable;
34
35 import static org.junit.Assert.assertNotNull;
36
37 import org.junit.Test;
38 import org.slf4j.Logger;
39 import org.slf4j.LoggerFactory;
40
41 /**
42 * See http://jira.qos.ch/browse/SLF4J-252
43 * @author Thorbjorn Ravn Andersen
44 */
45 public class LoggerSerializationTest {
46
47 static class LoggerHolder implements Serializable {
48 private static final long serialVersionUID = 1L;
49
50 private final Logger log = LoggerFactory.getLogger(LoggerHolder.class);
51
52 public String toString() {
53 return "log=" + getLog();
54 }
55
56 public Logger getLog() {
57 return log;
58 }
59 }
60
61 @Test
62 public void testCanLoggerBeSerialized() throws IOException, ClassNotFoundException {
63
64 LoggerHolder lh1 = new LoggerHolder();
65
66 ByteArrayOutputStream baos = new ByteArrayOutputStream();
67 ObjectOutputStream out = new ObjectOutputStream(baos);
68 out.writeObject(lh1);
69 out.close();
70
71 lh1 = null;
72
73 byte[] serializedLoggerHolder = baos.toByteArray();
74
75 InputStream is = new ByteArrayInputStream(serializedLoggerHolder);
76 ObjectInputStream in = new ObjectInputStream(is);
77 LoggerHolder lh2 = (LoggerHolder) in.readObject();
78
79 assertNotNull(lh2);
80 assertNotNull(lh2.getLog());
81 lh2.getLog().info("You must see this message as a log message");
82 }
83
84 }