1 package org.apache.bcel.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 org.apache.bcel.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 org.apache.bcel.verifier.VerifierFactoryObserver, javax.swing.ListModel{
66
67 private java.util.ArrayList listeners = new java.util.ArrayList();
68
69 private java.util.TreeSet cache = new java.util.TreeSet();
70
71 public VerifierFactoryListModel() {
72 VerifierFactory.attach(this);
73 update(null); // fill cache.
74 }
75
76 public synchronized void update(String 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) (listeners.get(i))).contentsChanged(e);
89 }
90 }
91
92 public synchronized void addListDataListener(javax.swing.event.ListDataListener l){
93 listeners.add(l);
94 }
95
96 public synchronized void removeListDataListener(javax.swing.event.ListDataListener l){
97 listeners.remove(l);
98 }
99
100 public synchronized int getSize(){
101 return cache.size();
102 }
103
104 public synchronized Object getElementAt(int index){
105 return (cache.toArray())[index];
106 }
107 }
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