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Java > Open Source Codes > org > exolab > jms > tools > admin > OpenJMSTopicFolder


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 (C) Exoffice Technologies Inc. All Rights Reserved.
42  *
43  * $Id: OpenJMSTopicFolder.java,v 1.1 2004/11/26 01:51:15 tanderson Exp $
44  *
45  * Date Author Changes
46  * $Date jimm Created
47  */
48
49
50 package org.exolab.jms.tools.admin;
51
52 import java.awt.Rectangle JavaDoc;
53 import java.awt.event.ActionEvent JavaDoc;
54 import java.awt.event.ActionListener JavaDoc;
55
56 import javax.swing.JMenuItem JavaDoc;
57 import javax.swing.JPopupMenu JavaDoc;
58 import javax.swing.JTree JavaDoc;
59 import javax.swing.tree.DefaultMutableTreeNode JavaDoc;
60 import javax.swing.tree.DefaultTreeModel JavaDoc;
61
62
63 /**
64  * This is a folder node, which holds all administered topics
65  *
66  * @version $Revision: 1.1 $ $Date: 2004/11/26 01:51:15 $
67  * @author <a HREF="mailto:jima@exolab.org">Jim Alateras</a>
68  **/
69 public class OpenJMSTopicFolder
70     extends DefaultMutableTreeNode JavaDoc
71     implements OpenJMSNode {
72
73     // A reference to the tree this node belongs to.
74 static private JTree JavaDoc tree_ = null;
75
76     // A flag indicating if the menu has been created yet.
77 static private boolean commandsCreated_ = false;
78
79     // The popup menu for all consumers.
80 static private JPopupMenu JavaDoc commands_ = null;
81
82     /**
83      * Construct an instance of this folder given the parent node.
84      *
85      * @param tree - The parent tree this consumer belons to.
86      */
87     public OpenJMSTopicFolder(JTree JavaDoc tree) {
88         if (!commandsCreated_) {
89             tree_ = tree;
90             createCommands();
91             commandsCreated_ = true;
92         }
93     }
94
95     /**
96      * Create the menu for all consumers and set up the Action events for
97      * each menu item. Since menus are shared, the callbacks called are
98      * static. Once a menu is slected, the slected node can be determined
99      * from the parent object.
100      *
101      */
102     protected void createCommands() {
103         commands_ = new JPopupMenu JavaDoc();
104
105         JMenuItem JavaDoc m = new JMenuItem JavaDoc("Create Topic");
106         m.addActionListener(new ActionListener JavaDoc() {
107
108             public void actionPerformed(ActionEvent JavaDoc evt) {
109                 createTopic();
110             }
111         }
112         );
113         commands_.add(m);
114     }
115
116     /**
117      * Topic folders are allowed on this node
118      *
119      * @return boolean Always returns true.
120      */
121     public boolean getAllowsChildren() {
122         return true;
123     }
124
125
126     /**
127      * The consumer folder is not a leaf node
128      *
129      * @return boolean Always returns false.
130      *
131      */
132     public boolean isLeaf() {
133         return false;
134     }
135
136     /**
137      * This node has been right clicked. The locations of this node is given
138      * by the loc object. Use this location to popup the consumer message
139      * menu.
140      *
141      * @param The location of this Topic node.
142      *
143      */
144     public void displayCommands(Rectangle JavaDoc loc) {
145         double x;
146         double y;
147
148         x = loc.getX();
149         y = loc.getY();
150         y += loc.getHeight();
151
152         commands_.show(tree_, (int) x, (int) y);
153     }
154
155     /**
156      * This node has changed. Inform the parent tree that it needs to be
157      * re-drawn.
158      *
159      */
160     private void refresh() {
161         DefaultTreeModel JavaDoc model = (DefaultTreeModel JavaDoc) tree_.getModel();
162         model.nodeStructureChanged((DefaultMutableTreeNode JavaDoc) this);
163     }
164
165     /**
166      * Update all children belonging to this node.
167      *
168      */
169     public void update() {
170     }
171
172     /**
173      * The unique name of this queue/topic.
174      *
175      * @return String the queue/topic name.
176      *
177      */
178     public String JavaDoc toString() {
179         return "Topics";
180     }
181
182     /**
183      * Get the particular instance of the consumer that has been selected.
184      *
185      * @return OpenJMSTopicFolder the instance selected.
186      *
187      */
188     static private OpenJMSTopicFolder getInstanceSelected() {
189         Object JavaDoc loc = tree_.getLastSelectedPathComponent();
190         return (OpenJMSTopicFolder) loc;
191     }
192
193     /**
194      * Delete the selected consumer object. Display a confirmation dialog
195      * and wait for its return. If the user has confirmed the action, first
196      * delete it from the database and if that is successful remove the node
197      * from the tree.
198      *
199      */
200     static private void createTopic() {
201     }
202 } // End OpenJMSTopicFolder
203
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