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Java > Open Source Codes > com > sun > org > apache > bcel > internal > verifier > VerifierFactoryListModel


1 package com.sun.org.apache.bcel.internal.verifier;
2
3 /* ====================================================================
4  * The Apache Software License, Version 1.1
5  *
6  * Copyright (c) 2001 The Apache Software Foundation. All rights
7  * reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  *
13  * 1. Redistributions of source code must retain the above copyright
14  * notice, this list of conditions and the following disclaimer.
15  *
16  * 2. Redistributions in binary form must reproduce the above copyright
17  * notice, this list of conditions and the following disclaimer in
18  * the documentation and/or other materials provided with the
19  * distribution.
20  *
21  * 3. The end-user documentation included with the redistribution,
22  * if any, must include the following acknowledgment:
23  * "This product includes software developed by the
24  * Apache Software Foundation (http://www.apache.org/)."
25  * Alternately, this acknowledgment may appear in the software itself,
26  * if and wherever such third-party acknowledgments normally appear.
27  *
28  * 4. The names "Apache" and "Apache Software Foundation" and
29  * "Apache BCEL" must not be used to endorse or promote products
30  * derived from this software without prior written permission. For
31  * written permission, please contact apache@apache.org.
32  *
33  * 5. Products derived from this software may not be called "Apache",
34  * "Apache BCEL", nor may "Apache" appear in their name, without
35  * prior written permission of the Apache Software Foundation.
36  *
37  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
38  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
39  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
40  * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
41  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
42  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
43  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
44  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
45  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
46  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
47  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
48  * SUCH DAMAGE.
49  * ====================================================================
50  *
51  * This software consists of voluntary contributions made by many
52  * individuals on behalf of the Apache Software Foundation. For more
53  * information on the Apache Software Foundation, please see
54  * <http://www.apache.org/>.
55  */
56 import com.sun.org.apache.bcel.internal.verifier.*;
57 import javax.swing.event.*;
58 /**
59  * This class implements an adapter; it implements both a Swing ListModel and
60  * a VerifierFactoryObserver.
61  *
62  * @version $Id: VerifierFactoryListModel.java,v 1.1.1.1 2001/10/29 20:00:32 jvanzyl Exp $
63  * @author Enver Haase
64  */
65 public class VerifierFactoryListModel implements com.sun.org.apache.bcel.internal.verifier.VerifierFactoryObserver, javax.swing.ListModel JavaDoc{
66
67   private java.util.ArrayList JavaDoc listeners = new java.util.ArrayList JavaDoc();
68
69   private java.util.TreeSet JavaDoc cache = new java.util.TreeSet JavaDoc();
70
71   public VerifierFactoryListModel() {
72     VerifierFactory.attach(this);
73     update(null); // fill cache.
74 }
75
76   public synchronized void update(String JavaDoc s){
77     int size = listeners.size();
78
79     Verifier[] verifiers = VerifierFactory.getVerifiers();
80     int num_of_verifiers = verifiers.length;
81     cache.clear();
82     for (int i=0; i<num_of_verifiers; i++) {
83       cache.add(verifiers[i].getClassName());
84     }
85
86     for (int i=0; i<size; i++){
87       ListDataEvent e = new ListDataEvent(this, ListDataEvent.CONTENTS_CHANGED, 0, num_of_verifiers-1);
88       ((javax.swing.event.ListDataListener JavaDoc) (listeners.get(i))).contentsChanged(e);
89     }
90   }
91
92   public synchronized void addListDataListener(javax.swing.event.ListDataListener JavaDoc l){
93     listeners.add(l);
94   }
95
96   public synchronized void removeListDataListener(javax.swing.event.ListDataListener JavaDoc l){
97     listeners.remove(l);
98   }
99
100   public synchronized int getSize(){
101     return cache.size();
102   }
103
104   public synchronized Object JavaDoc getElementAt(int index){
105     return (cache.toArray())[index];
106   }
107 }
108
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