KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > openharmonise > rm > commands > CmdArchive


1 /*
2  * The contents of this file are subject to the
3  * Mozilla Public License Version 1.1 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at http://www.mozilla.org/MPL/
6  *
7  * Software distributed under the License is distributed on an "AS IS"
8  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
9  * See the License for the specific language governing rights and
10  * limitations under the License.
11  *
12  * The Initial Developer of the Original Code is Simulacra Media Ltd.
13  * Portions created by Simulacra Media Ltd are Copyright (C) Simulacra Media Ltd, 2004.
14  *
15  * All Rights Reserved.
16  *
17  * Contributor(s):
18  */
19 package org.openharmonise.rm.commands;
20
21 import org.openharmonise.rm.resources.lifecycle.*;
22
23 /**
24  * Archives the 'command object', if it is an instance of <code>Editable</code>.
25  *
26  * @author Michael Bell
27  * @version $Revision: 1.3 $
28  *
29  */
30 public class CmdArchive extends AbstractCmd {
31
32     /**
33      * Creates a new instance of the command
34      *
35      */
36     public CmdArchive() {
37         super();
38     }
39
40     /*
41      * (non-Javadoc)
42      *
43      * @see org.openharmonise.rm.commands.AbstractCmd#execute()
44      */
45     public Object JavaDoc execute(Context context) throws CommandException {
46         if ((m_commandObj instanceof Editable) == false) {
47             throw new InvalidCommandException(
48                     "Command is not valid for this object:"
49                             + m_commandObj.getClass());
50         }
51
52         if (isAvailable(context) == false) {
53             throw new InvalidCommandException(
54                     "Command is not available for this object");
55         }
56
57         Editable editable = (Editable) getCommandObject(context);
58         Object JavaDoc cmdResult = null;
59
60         //log before execution, i.e. while object still has it's data
61 logCommand(context);
62
63         try {
64             cmdResult = editable.archive();
65         } catch (EditException e) {
66             throw new CommandExecutionException("Error archiving object", e);
67         }
68
69         return cmdResult;
70     }
71
72     /*
73      * (non-Javadoc)
74      *
75      * @see org.openharmonise.rm.commands.AbstractCmd#getName()
76      */
77     public String JavaDoc getName() {
78         return "Archive";
79     }
80
81     /*
82      * (non-Javadoc)
83      *
84      * @see org.openharmonise.rm.commands.AbstractCmd#isValidCommandObject(java.lang.Object)
85      */
86     public boolean isValidCommandObject(Object JavaDoc obj) {
87         return (obj instanceof Editable);
88     }
89
90 }
Popular Tags