View Javadoc

1   /***
2    * Redistribution and use of this software and associated documentation
3    * ("Software"), with or without modification, are permitted provided
4    * that the following conditions are met:
5    *
6    * 1. Redistributions of source code must retain copyright
7    *    statements and notices.  Redistributions must also contain a
8    *    copy of this document.
9    *
10   * 2. Redistributions in binary form must reproduce the
11   *    above copyright notice, this list of conditions and the
12   *    following disclaimer in the documentation and/or other
13   *    materials provided with the distribution.
14   *
15   * 3. The name "Exolab" must not be used to endorse or promote
16   *    products derived from this Software without prior written
17   *    permission of Exoffice Technologies.  For written permission,
18   *    please contact info@exolab.org.
19   *
20   * 4. Products derived from this Software may not be called "Exolab"
21   *    nor may "Exolab" appear in their names without prior written
22   *    permission of Exoffice Technologies. Exolab is a registered
23   *    trademark of Exoffice Technologies.
24   *
25   * 5. Due credit should be given to the Exolab Project
26   *    (http://www.exolab.org/).
27   *
28   * THIS SOFTWARE IS PROVIDED BY EXOFFICE TECHNOLOGIES AND CONTRIBUTORS
29   * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
30   * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
31   * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
32   * EXOFFICE TECHNOLOGIES OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
33   * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
34   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
35   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
37   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
39   * OF THE POSSIBILITY OF SUCH DAMAGE.
40   *
41   * Copyright 2000,2003 (C) Exoffice Technologies Inc. All Rights Reserved.
42   *
43   * $Id: Timestamp.java,v 1.1 2004/11/26 01:50:43 tanderson Exp $
44   *
45   * Date         Author  Changes
46   * 02/08/2000   jimm    Created
47   */
48  
49  package org.exolab.jms.message;
50  
51  import java.io.Externalizable;
52  import java.io.IOException;
53  import java.io.ObjectInput;
54  import java.io.ObjectOutput;
55  import java.util.Date;
56  
57  /***
58   * Wrapper for JMSTimestamp.
59   *
60   * @version     $Revision: 1.1 $ $Date: 2004/11/26 01:50:43 $
61   * @author      <a href="mailto:mourikis@exolab.org">Jim Mourikis</a>
62   */
63  public class Timestamp extends Date implements Externalizable {
64  
65      // Version Id used for streaming
66      static final long serialVersionUID = 1;
67  
68      public Timestamp() {
69          super();
70      }
71  
72      // Create Date from milliseconds since epoc.
73      public Timestamp(long datetime) {
74          super(datetime);
75      }
76  
77      // Marshall out
78      public void writeExternal(ObjectOutput out) throws IOException {
79          out.writeLong(serialVersionUID);
80          out.writeLong(getTime());
81      }
82  
83      // Marshall in
84      public void readExternal(ObjectInput in)
85          throws IOException, ClassNotFoundException {
86          long version = in.readLong();
87          long timestamp;
88          if (version == serialVersionUID) {
89              timestamp = in.readLong();
90              setTime(timestamp);
91          } else {
92              throw new IOException("Incorrect version enountered: " +
93                  version + " This version = " +
94                  serialVersionUID);
95          }
96      }
97  
98      // Return time as milliseconds since epoc
99      public long toLong() {
100         return getTime();
101     }
102 
103     // Set the present time.
104     public void setNow() {
105         setTime(System.currentTimeMillis());
106     }
107 }
108 
109 
110