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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  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.jetspeed.util;
18  
19  import java.io.ByteArrayInputStream;
20  import java.io.ByteArrayOutputStream;
21  import java.io.ObjectInputStream;
22  import java.io.ObjectOutputStream;
23  
24  /***
25   * Utility for object cloning
26   * 
27   * @author <a href="mailto:weaver@apache.org">Scott T. Weaver</a>
28   */
29  public class CloneUtil
30  {
31      /***
32       * Provides a deep clone serializing/de-serializng <code>objToClone</code>     
33       * 
34       * @param objToClone The object to be cloned
35       * @return The cloned object
36       */
37      public static final Object deepClone(Object objToClone)
38      {
39          try
40          {
41              ByteArrayOutputStream bytearrayoutputstream = new ByteArrayOutputStream(100);
42              ObjectOutputStream objectoutputstream = new ObjectOutputStream(bytearrayoutputstream);
43              objectoutputstream.writeObject(objToClone);
44              byte abyte0[] = bytearrayoutputstream.toByteArray();
45              objectoutputstream.close();
46              ByteArrayInputStream bytearrayinputstream = new ByteArrayInputStream(abyte0);
47              ObjectInputStream objectinputstream = new ObjectInputStream(bytearrayinputstream);
48              Object clone = objectinputstream.readObject();
49              objectinputstream.close();
50              return clone;
51          }
52          catch (Exception exception)
53          {
54              // nothing
55          }
56          return null;
57      }
58  
59  }