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Java > Open Source Codes > org > objectweb > openccm > explorer > menu > LoadJarFileAction


1 /*====================================================================
2
3 OpenCCM: The Open CORBA Component Model Platform
4 Copyright (C) 2000-2003 INRIA - USTL - LIFL - GOAL
5 Contact: openccm@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): Jerome Moroy.
23 Contributor(s): ______________________________________.
24
25 ====================================================================*/
26 package org.objectweb.openccm.explorer.menu;
27
28 import java.io.File JavaDoc;
29 import java.awt.Component JavaDoc;
30 import javax.swing.ImageIcon JavaDoc;
31 import javax.swing.JFileChooser JavaDoc;
32 import java.net.URL JavaDoc;
33 import java.net.URLClassLoader JavaDoc;
34
35 /**
36  * This class represents the action which load a new Jar file.
37  *
38  * @author <a HREF="mailto:Jerome.Moroy@lifl.fr">Jerome Moroy</a>
39  *
40  * @version 0.1
41  */
42 public class LoadJarFileAction
43     extends AbstractMenuAction {
44
45     /** The file chooser that allow to find the file to load */
46     protected JFileChooser JavaDoc fileChooser_;
47
48     /** The parent */
49     protected Component JavaDoc parent_;
50
51     /**
52      * The default constructor
53      */
54     public LoadJarFileAction(String JavaDoc nom, ImageIcon JavaDoc image, String JavaDoc desc, Integer JavaDoc mnemonic, org.objectweb.fractal.api.Component tree, Component JavaDoc parent) {
55         super(nom, image, desc, mnemonic, tree);
56         fileChooser_ = new JFileChooser JavaDoc();
57         fileChooser_.setDialogTitle("Loads a new jar file ...");
58         parent_ = parent;
59     }
60
61     /**
62      * Shows a JFileChooser component and tries to load the new configuration file
63      */
64     public void actionPerformed(java.awt.event.ActionEvent JavaDoc ae) {
65         int returnVal = fileChooser_.showOpenDialog(parent_);
66         if (returnVal == JFileChooser.APPROVE_OPTION) {
67             File JavaDoc file = fileChooser_.getSelectedFile();
68             try {
69                 URL JavaDoc url = file.toURL();
70
71                 URL JavaDoc f[] = new URL JavaDoc[] { url };
72                 URLClassLoader JavaDoc oldCL = (URLClassLoader JavaDoc) Thread.currentThread().getContextClassLoader();
73                 URLClassLoader JavaDoc newCL = URLClassLoader.newInstance(f, oldCL);
74                 Thread.currentThread().setContextClassLoader(newCL);
75             } catch (java.net.MalformedURLException JavaDoc e) {
76
77             }
78             treeItf_.refreshAll();
79         }
80     }
81
82 }
83
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