SessionObjectHashtable


1   /*
2    * CLIF is a Load Injection Framework
3    * Copyright (C) 2004 France Telecom R&D
4    *
5    * This library is free software; you can redistribute it and/or
6    * modify it under the terms of the GNU Lesser General Public
7    * License as published by the Free Software Foundation; either
8    * version 2 of the License, or (at your option) any later version.
9    *
10   * This library is distributed in the hope that it will be useful,
11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13   * Lesser General Public License for more details.
14   *
15   * You should have received a copy of the GNU Lesser General Public
16   * License along with this library; if not, write to the Free Software
17   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18   *
19   * CLIF 
20   *
21   * Contact: clif@objectweb.org
22   */
23  package org.objectweb.clif.scenario.util.isac.util;
24  
25  import java.util.Enumeration  ;
26  import java.util.Hashtable  ;
27  
28  import org.objectweb.clif.scenario.util.isac.exception.IsacRuntimeException;
29  
30  /**
31   * Create specifics hashtable which override clone method, in order to clone
32   * values and not references All the elements putted in the class must
33   * implements the SessionObjectAction interface This kind of hashtable permit to
34   * reset all elements of the table too and close all elements of the table.
35   * 
36   * @author JC Meillaud
37   * @author A Peyrard
38   */
39  public class SessionObjectHashtable extends Hashtable   {
40      /**
41       * Constructor, build a ne cloneable hashtable All the object which are
42       * containing in this class must implements CloneableObject interface
43       */
44      public SessionObjectHashtable() {
45          super();
46      }
47  
48      /**
49       * @see java.lang.Object#clone()
50       */
51      public synchronized Object   clone() {
52          try {
53              SessionObjectHashtable clone = new SessionObjectHashtable();
54              Enumeration   keys = this.keys();
55              Enumeration   elems = this.elements();
56              while (keys.hasMoreElements()) {
57                  Object   key = keys.nextElement();
58                  Object   cloneableValue = ((SessionObjectAction) elems
59                          .nextElement()).createNewSessionObject();
60                  // put the object in the cloned hashtable
61                  clone.put(key, cloneableValue);
62              }
63              return clone;
64          } catch (ClassCastException   cce) {
65              throw new IsacRuntimeException(
66                      "This hashtable must only contains object which implements SessionObjectAction interface", cce);
67          }
68      }
69  
70      /**
71       * This method will call the reset method on all containing objects
72       */
73      public void reset() {
74          try {
75              Enumeration   e = this.elements();
76              while (e.hasMoreElements()) {
77                  ((SessionObjectAction) e.nextElement()).reset();
78              }
79          } catch (ClassCastException   cce) {
80              throw new IsacRuntimeException(
81                      "This hashtable must only contains object which implements SessionObjectAction interface",cce);
82          }
83      }
84  
85      /**
86       * This method will call the close method on all objects
87       */
88      public void close() {
89          try {
90              Enumeration   e = this.elements();
91              while (e.hasMoreElements()) {
92                  ((SessionObjectAction) e.nextElement()).close();
93              }
94          } catch (ClassCastException   cce) {
95              throw new IsacRuntimeException(
96                      "This hashtable must only contains object which implements SessionObjectAction interface",cce);
97          }
98      }
99  }
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