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