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


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: OpenJMSConsumerFolder.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 durable consumers for a particular
65  * server.
66  *
67  * @version $Revision: 1.1 $ $Date: 2004/11/26 01:51:15 $
68  * @author <a HREF="mailto:jima@exolab.org">Jim Alateras</a>
69  */
70 public class OpenJMSConsumerFolder
71     extends DefaultMutableTreeNode JavaDoc
72     implements OpenJMSNode {
73
74     // A reference to the tree this node belongs to.
75 static private JTree JavaDoc tree_ = null;
76
77     // A flag indicating if the menu has been created yet.
78 static private boolean commandsCreated_ = false;
79
80     // The popup menu for all consumers.
81 static private JPopupMenu JavaDoc commands_ = null;
82
83     /**
84      * Construct an instance of this folder given the parent node.
85      *
86      * @param tree - The parent tree this consumer belons to.
87      */
88     public OpenJMSConsumerFolder(JTree JavaDoc tree) {
89         if (!commandsCreated_) {
90             tree_ = tree;
91             createCommands();
92             commandsCreated_ = true;
93         }
94     }
95
96     /**
97      * Create the menu for all consumers and set up the Action events for
98      * each menu item. Since menus are shared, the callbacks called are
99      * static. Once a menu is slected, the slected node can be determined
100      * from the parent object.
101      *
102      */
103     protected void createCommands() {
104         commands_ = new JPopupMenu JavaDoc();
105
106         JMenuItem JavaDoc m = new JMenuItem JavaDoc("Create Consumer");
107         m.addActionListener(new ActionListener JavaDoc() {
108
109             public void actionPerformed(ActionEvent JavaDoc evt) {
110                 createConsumer();
111             }
112         }
113         );
114         commands_.add(m);
115     }
116
117     /**
118      * Consumer folders are allowed on this node
119      *
120      * @return boolean Always returns true.
121      */
122     public boolean getAllowsChildren() {
123         return true;
124     }
125
126
127     /**
128      * The consumer folder is not a leaf node
129      *
130      * @return boolean Always returns false.
131      *
132      */
133     public boolean isLeaf() {
134         return false;
135     }
136
137     /**
138      * This node has been right clicked. The locations of this node is given
139      * by the loc object. Use this location to popup the consumer message
140      * menu.
141      *
142      * @param The location of this Consumer node.
143      *
144      */
145     public void displayCommands(Rectangle JavaDoc loc) {
146         double x;
147         double y;
148
149         x = loc.getX();
150         y = loc.getY();
151         y += loc.getHeight();
152
153         commands_.show(tree_, (int) x, (int) y);
154     }
155
156     /**
157      * This node has changed. Inform the parent tree that it needs to be
158      * re-drawn.
159      *
160      */
161     private void refresh() {
162         DefaultTreeModel JavaDoc model = (DefaultTreeModel JavaDoc) tree_.getModel();
163         model.nodeStructureChanged((DefaultMutableTreeNode JavaDoc) this);
164     }
165
166     /**
167      * Update all children belonging to this node.
168      *
169      */
170     public void update() {
171     }
172
173     /**
174      * The unique name of this queue/topic.
175      *
176      * @return String the queue/topic name.
177      *
178      */
179     public String JavaDoc toString() {
180         return "Consumers";
181     }
182
183     /**
184      * Get the particular instance of the consumer that has been selected.
185      *
186      * @return OpenJMSConsumerFolder the instance selected.
187      *
188      */
189     static private OpenJMSConsumerFolder getInstanceSelected() {
190         Object JavaDoc loc = tree_.getLastSelectedPathComponent();
191         return (OpenJMSConsumerFolder) loc;
192     }
193
194     /**
195      * Delete the selected consumer object. Display a confirmation dialog
196      * and wait for its return. If the user has confirmed the action, first
197      * delete it from the database and if that is successful remove the node
198      * from the tree.
199      *
200      */
201     static private void createConsumer() {
202     }
203 } // End OpenJMSConsumerFolder
204
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