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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: OpenJMSServer.java,v 1.3 2003/08/17 01:32:24 tanderson Exp $
44   *
45   * Date         Author  Changes
46   * $Date	    jimm    Created
47   */
48  
49  package org.exolab.jms.jndiadministration;
50  
51  import java.awt.Rectangle;
52  import java.awt.event.ActionEvent;
53  import java.awt.event.ActionListener;
54  import java.util.Enumeration;
55  
56  import javax.naming.NameClassPair;
57  import javax.swing.JMenuItem;
58  import javax.swing.JOptionPane;
59  import javax.swing.JPopupMenu;
60  import javax.swing.JTree;
61  import javax.swing.tree.DefaultMutableTreeNode;
62  import javax.swing.tree.DefaultTreeModel;
63  
64  
65  /***
66   * This class controls all dispay characteristics and menus related to an
67   * OpenJMS Jndi Server. Currently only add context is supported.
68   *
69   * @version     $Revision: 1.3 $ $Date: 2003/08/17 01:32:24 $
70   * @author      <a href="mailto:mourikis@exolab.org">Jim Mourikis</a>
71   * @see         OpenJMSContext
72   * @see         AdminMgr
73   * @see         ObjectDialog
74   * @see         OpenJMSObject
75   */
76  public class OpenJMSServer extends DefaultMutableTreeNode {
77  
78      // The server name.
79      private String serverName_;
80  
81      //  A reference to the tree this node belongs to.
82      static private JTree tree_ = null;
83  
84      // A flag indicating if the menu has been created yet.
85      static private boolean commandsCreated_ = false;
86  
87      // The popup menu for all contexts
88      static private JPopupMenu commands_ = null;
89  
90      /***
91       * The OpenJMS server connection. Currently there is only one
92       * OpenJMSServer connection at a time.
93       *
94       * @param serverName The name of this server
95       * @param tree The parent tree this root node belongs to.
96       *
97       */
98      public OpenJMSServer(String serverName, JTree tree) {
99          serverName_ = serverName;
100         if (!commandsCreated_) {
101             tree_ = tree;
102             createCommands();
103             commandsCreated_ = true;
104         }
105     }
106 
107 
108     /***
109      * Create the menu for all servers and set up the Action events for
110      * each menu item. Since menus are shared, the callbacks called are
111      * static. Once a menu is slected, the slected node can be determined
112      * from the parent object.
113      *
114      */
115     protected void createCommands() {
116         commands_ = new JPopupMenu();
117         JMenuItem m = new JMenuItem("Create Context");
118         m.addActionListener(new ActionListener() {
119 
120             public void actionPerformed(ActionEvent evt) {
121                 createContext();
122             }
123         }
124         );
125         commands_.add(m);
126     }
127 
128 
129     /***
130      * Determine all known OpenJMSServers. For the moment only the offline
131      * mode is supported, which is basically opening up the database directly.
132      *
133      * @param tree The parent tree this root node belongs to.
134      *
135      */
136     static public DefaultTreeModel createServerList(JTree tree) {
137         // todo try and connect to all known servers.
138         // for the moment just add one.
139         OpenJMSServer server = new OpenJMSServer("Root", tree);
140         return new DefaultTreeModel(server);
141     }
142 
143 
144     /***
145      * Get all Contexts from the database for this JMS server and display
146      * them as children of the root node.
147      *
148      */
149     public void displayContexts() {
150         Enumeration e = AdminConnection.instance().getAllContexts(null);
151         if (e != null) {
152             while (e.hasMoreElements()) {
153                 NameClassPair pair = (NameClassPair) e.nextElement();
154                 add(new OpenJMSContext(pair.getName(), null, tree_));
155             }
156             refresh();
157         }
158     }
159 
160 
161     /***
162      * Children are allowed for all servers
163      *
164      * @return boolean Always returns true.
165      *
166      */
167     public boolean getAllowsChildren() {
168         return true;
169     }
170 
171 
172     /***
173      * This node has been right clicked. The locations of this node is given
174      * by the loc object. Use this location to popup the server message
175      * menu.
176      *
177      * @param The location of this node.
178      *
179      */
180     public void displayCommands(Rectangle loc) {
181         double x;
182         double y;
183 
184         x = loc.getX();
185         y = loc.getY();
186         y += loc.getHeight();
187 
188         commands_.show(tree_, (int) x, (int) y);
189     }
190 
191 
192     /***
193      * The unique name of this server
194      *
195      * @return String the server name.
196      *
197      */
198     public String toString() {
199         return serverName_;
200     }
201 
202 
203     /***
204      * This node has changed. Inform the parent tree that it needs to be
205      * re-drawn.
206      *
207      */
208     public void refresh() {
209         DefaultTreeModel model = (DefaultTreeModel) tree_.getModel();
210         model.nodeStructureChanged((DefaultMutableTreeNode) this);
211     }
212 
213     /***
214      * Get the particular instance of the server that has been selected.
215      *
216      * @return OpenJMSServer the instance selected.
217      *
218      */
219     static private OpenJMSServer getInstanceSelected() {
220         Object loc = tree_.getLastSelectedPathComponent();
221         return (OpenJMSServer) loc;
222     }
223 
224 
225     /***
226      * A new context is being added for this server. Popup a context
227      * add dialog, to collect relevent information, then update the database.
228      * If the database update is successful, add the context node as a
229      * a child of this server node, and refresh.
230      *
231      */
232     static private void createContext() {
233         OpenJMSServer This = getInstanceSelected();
234         ObjectDialog.instance().display("Enter a unique context name",
235             "Context Creation");
236         if (ObjectDialog.instance().isConfirmed()) {
237             try {
238                 AdminConnection.instance().createContext
239                     (ObjectDialog.instance().getName());
240                 This.add(new OpenJMSContext
241                     (ObjectDialog.instance().getName(), null, tree_));
242                 This.refresh();
243             } catch (javax.naming.NamingException err) {
244                 JOptionPane.showMessageDialog
245                     (tree_, err.getMessage(),
246                         "Context Create Error", JOptionPane.ERROR_MESSAGE);
247             }
248         }
249     }
250 
251 } // End ServerList