ProducerImpl


1   /*====================================================================
2   
3   OpenCCM: The Open CORBA Component Model Platform
4   Copyright (C) 2000-2002 USTL - LIFL - GOAL
5   Contact: openccm-team@objectweb.org
6   
7   This library is free software; you can redistribute it and/or
8   modify it under the terms of the GNU Lesser General Public
9   License as published by the Free Software Foundation; either
10  version 2.1 of the License, or any later version.
11  
12  This library is distributed in the hope that it will be useful,
13  but WITHOUT ANY WARRANTY; without even the implied warranty of
14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  Lesser General Public License for more details.
16  
17  You should have received a copy of the GNU Lesser General Public
18  License along with this library; if not, write to the Free Software
19  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
20  USA
21  
22  Initial developer(s): Philippe Merle, Mathieu Vadet.
23  Contributor(s): Romain Rouvoy, Christophe Demarey.
24  
25  ====================================================================*/
26  
27  package org.objectweb.ccm.demo2.cif;
28  
29  import org.objectweb.ccm.demo2.*;
30  
31  /**
32   * This is the implementation of the OMG IDL3 demo2::Producer component type.
33   *
34   * This class inherits from the local CCM_Producer interface
35   * generated by the OpenCCM's IDL3 to IDL2 mapping generator.
36   *
37   * This class also implements the java.awt.event.ActionListener to manage
38   * users' interactions on the Swing GUI associated to this component.
39   *
40   * @author <a HREF="mailto:Philippe.Merle@lifl.fr">Philippe Merle</A>
41   *         <a HREF="mailto:Mathieu.Vadet@lifl.fr">Mathieu Vadet</A>
42   *         <a HREF="mailto:Christophe.Demarey@lifl.fr">Christophe Demarey</a>
43   */
44  
45  public class ProducerImpl
46       extends org.objectweb.ccm.demo2.ProducerSessionComposition.ComponentImpl
47    implements java.awt.event.ActionListener  
48  {
49      // ==================================================================
50      //
51      // Internal state.
52      //
53      // ==================================================================
54  
55      /** The name of the component. */
56      private String   name_;
57  
58      /** To refer to the GUI frame. */
59      private javax.swing.JFrame   frame_;
60  
61      /** To refer to the GUI user input area. */
62      private javax.swing.JList   list_;
63  
64      // ==================================================================
65      //
66      // Constructor.
67      //
68      // ==================================================================
69  
70      /** The default constructor. */
71      public
72      ProducerImpl()
73      {
74      }
75  
76      // ==================================================================
77      //
78      // Internal methods.
79      //
80      // ==================================================================
81  
82      // ==================================================================
83      //
84      // Public methods.
85      //
86      // ==================================================================
87  
88      // ==================================================================
89      //
90      // Methods for OMG IDL Components::EnterpriseComponent
91      //
92      // ==================================================================
93  
94      /**
95       * Complete the component configuration.
96       *
97       * @exception org.omg.Components.InvalidConfiguration
98       *            Thrown if the configuration is invalid.
99       */
100     public void
101     configuration_complete ()
102     throws org.omg.Components.InvalidConfiguration
103     {
104         // Checks if the configuration is not completed.
105         if(name_ == null)
106             throw new org.omg.Components.InvalidConfiguration();
107 
108         // Instantiating the GUI.
109 
110         // Creates a Swing Frame.
111         frame_ = new javax.swing.JFrame  (name_ + "'s Producer GUI");
112         // Sets its size.
113         frame_.setSize(400, 300);
114 
115         // Creates a JList for user's inputs.
116         String  [] data = {
117             "apple", "pear", "carrot", "corn", "milk", "orange" , "beer",
118             "radish", "beans", "pumpkin", "salad", "worm", "potato", "nothing"
119         };
120         list_ = new javax.swing.JList  (data);
121 
122         // Creates a button to publishe Food events.
123         javax.swing.JButton   button = new javax.swing.JButton  ("Do crop");
124         button.addActionListener(this);
125 
126         // Constructs and shows the GUI.
127         javax.swing.JPanel   panel = new javax.swing.JPanel  (
128                                        new java.awt.BorderLayout  ()
129                                    );
130         frame_.getContentPane().add(panel);
131         panel.add(new javax.swing.JScrollPane  (list_),
132                   java.awt.BorderLayout.CENTER);
133         panel.add(button, java.awt.BorderLayout.SOUTH);
134         frame_.pack();
135         frame_.show();
136     }
137 
138     // ==================================================================
139     //
140     // Methods for the OMG IDL org.omg.Components.SessionComponent
141     //
142     // ==================================================================
143 
144     /**
145      * Container callback to signal that the component is removed.
146      *
147      * @throw org.omg.Components.CCMException For any problems.
148      */
149     public void
150     ccm_remove()
151     throws org.omg.Components.CCMException
152     {
153         // Release the associated frame.
154         frame_.dispose();
155         frame_ = null;
156     }
157 
158     // ==================================================================
159     //
160     // Methods for the OMG IDL demo2::CCM_Producer interface.
161     //
162     // ==================================================================
163 
164     /**
165      * The mutator method for the attribute name.
166      *
167      * @param n The name.
168      */
169     public void
170     name(String   n)
171     {
172         name_ = n;
173 
174         if (frame_ != null)
175             frame_.setTitle(name_ + "'s Producer GUI");
176     }
177 
178     /**
179      * The accessor method for the attribute name.
180      *
181      * @return The name.
182      */
183     public String  
184     name()
185     {
186         return name_;
187     }
188 
189     // ==================================================================
190     //
191     // Methods for the java.awt.event.ActionListener interface.
192     //
193     // ==================================================================
194 
195     /**
196      * When the button is selectionned.
197      *
198      * @param e The associate ActionEvent.
199      */
200     public void
201     actionPerformed(java.awt.event.ActionEvent   e)
202     {
203         if (list_.isSelectionEmpty())
204             return;
205 
206         Object  [] texts = list_.getSelectedValues();
207         for (int i=0; i<texts.length; i++)
208         {
209             get_context().push_crop(new FoodImpl( (String  )texts[i] ));
210         }
211 
212         list_.clearSelection();
213     }
214 }
215
A to Z: JavaDoc & Examples Daily Java News & Articles Open Source Projects Open Source Codes Free Computer Books Remove Frame
Popular Tags