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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  
28  import java.io.ByteArrayInputStream;
29  import java.io.ByteArrayOutputStream;
30  import java.io.IOException;
31  import java.io.InputStream;
32  import java.io.ObjectInputStream;
33  import java.io.ObjectOutputStream;
34  import java.io.Serializable;
35  
36  import junit.framework.Assert;
37  
38  import junit.framework.TestCase;
39  import org.slf4j.Logger;
40  import org.slf4j.LoggerFactory;
41  
42  /**
43   * See http://bugzilla.slf4j.org/show_bug.cgi?id=261
44   * @author Thorbjorn Ravn Andersen
45   */
46  public class LoggerSerializationTest extends TestCase {
47  
48    static class LoggerHolder implements Serializable {
49   		private static final long serialVersionUID = 1L;
50  
51   		private Logger log = LoggerFactory.getLogger(LoggerHolder.class);
52  
53   		public String toString() {
54   			return "log=" + getLog();
55   		}
56  
57   		public Logger getLog() {
58   			return log;
59   		}
60   	}
61  
62   	public void testCanLoggerBeSerialized() throws IOException,
63   			ClassNotFoundException {
64  
65   		LoggerHolder lh1 = new LoggerHolder();
66  
67   		ByteArrayOutputStream baos = new ByteArrayOutputStream();
68   		ObjectOutputStream out = new ObjectOutputStream(baos);
69   		out.writeObject(lh1);
70   		out.close();
71  
72   		lh1 = null;
73  
74   		byte[] serializedLoggerHolder = baos.toByteArray();
75  
76   		InputStream is = new ByteArrayInputStream(serializedLoggerHolder);
77   		ObjectInputStream in = new ObjectInputStream(is);
78   		LoggerHolder lh2 = (LoggerHolder) in.readObject();
79  
80   		Assert.assertNotNull(lh2);
81   		Assert.assertNotNull(lh2.getLog());
82   		lh2.getLog().info("You must see this message as a log message");
83   	}
84  
85  }