1 /*
2 * $Header: /u/cvs/Projects/EnhydraOrg/enhydra3x/Enhydra/modules/Tomcat/src/share/org/apache/jasper/compiler/DelegatingListener.java,v 1.2 2000/02/26 02:31:58 shawn Exp $
3 * $Revision: 1.2 $
4 * $Date: 2000/02/26 02:31:58 $
5 *
6 * ====================================================================
7 *
8 * The Apache Software License, Version 1.1
9 *
10 * Copyright (c) 1999 The Apache Software Foundation. All rights
11 * reserved.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 *
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 *
20 * 2. Redistributions in binary form must reproduce the above copyright
21 * notice, this list of conditions and the following disclaimer in
22 * the documentation and/or other materials provided with the
23 * distribution.
24 *
25 * 3. The end-user documentation included with the redistribution, if
26 * any, must include the following acknowlegement:
27 * "This product includes software developed by the
28 * Apache Software Foundation (http://www.apache.org/)."
29 * Alternately, this acknowlegement may appear in the software itself,
30 * if and wherever such third-party acknowlegements normally appear.
31 *
32 * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
33 * Foundation" must not be used to endorse or promote products derived
34 * from this software without prior written permission. For written
35 * permission, please contact apache@apache.org.
36 *
37 * 5. Products derived from this software may not be called "Apache"
38 * nor may "Apache" appear in their names without prior written
39 * permission of the Apache Group.
40 *
41 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
42 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
43 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
44 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
45 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
46 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
47 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
48 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
49 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
50 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
51 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * SUCH DAMAGE.
53 * ====================================================================
54 *
55 * This software consists of voluntary contributions made by many
56 * individuals on behalf of the Apache Software Foundation. For more
57 * information on the Apache Software Foundation, please see
58 * <http://www.apache.org/>.
59 *
60 */
61
62 package org.apache.jasper.compiler;
63
64 import java.util.Hashtable;
65 import java.util.Vector;
66
67 import javax.servlet.jsp.tagext.TagInfo;
68 import javax.servlet.jsp.tagext.TagLibraryInfo;
69
70 import org.apache.jasper.JasperException;
71 import org.apache.jasper.Constants;
72
73
74 /**
75 * Simple util class.... see usage in Parser.Parser(). Not intended for anything
76 * other than that purpose....
77 *
78 * @author Anil K. Vijendran
79 */
80 final class DelegatingListener implements ParseEventListener {
81 ParseEventListener delegate;
82 Parser.Action action;
83
84 DelegatingListener(ParseEventListener delegate, Parser.Action action) {
85 this.delegate = delegate;
86 this.action = action;
87 }
88
89 void doAction() throws JasperException {
90 action.execute();
91 }
92
93 public void beginPageProcessing() throws JasperException {
94 delegate.beginPageProcessing();
95 }
96
97 public void endPageProcessing() throws JasperException {
98 delegate.endPageProcessing();
99 }
100
101 public void handleComment(Mark start, Mark stop) throws JasperException {
102 doAction();
103 delegate.handleComment(start, stop);
104 }
105
106 public void handleDirective(String directive, Mark start, Mark stop, Hashtable attrs)
107 throws JasperException
108 {
109 doAction();
110 delegate.handleDirective(directive, start, stop, attrs);
111 }
112
113 public void handleDeclaration(Mark start, Mark stop) throws JasperException {
114 doAction();
115 delegate.handleDeclaration(start, stop);
116 }
117
118 public void handleScriptlet(Mark start, Mark stop) throws JasperException {
119 doAction();
120 delegate.handleScriptlet(start, stop);
121 }
122
123 public void handleExpression(Mark start, Mark stop) throws JasperException {
124 doAction();
125 delegate.handleExpression(start, stop);
126 }
127
128 public void handleBean(Mark start, Mark stop, Hashtable attrs)
129 throws JasperException
130 {
131 doAction();
132 delegate.handleBean(start, stop, attrs);
133 }
134
135 public void handleBeanEnd(Mark start, Mark stop, Hashtable attrs)
136 throws JasperException
137 {
138 doAction();
139 delegate.handleBeanEnd(start, stop, attrs);
140 }
141
142 public void handleGetProperty(Mark start, Mark stop, Hashtable attrs)
143 throws JasperException
144 {
145 doAction();
146 delegate.handleGetProperty(start, stop, attrs);
147 }
148
149 public void handleSetProperty(Mark start, Mark stop, Hashtable attrs)
150 throws JasperException
151 {
152 doAction();
153 delegate.handleSetProperty(start, stop, attrs);
154 }
155
156 public void handlePlugin(Mark start, Mark stop, Hashtable attrs,
157 Hashtable param, String fallback)
158 throws JasperException
159 {
160 doAction();
161 delegate.handlePlugin(start, stop, attrs, param, fallback);
162 }
163
164 public void handleCharData(char[] chars) throws JasperException {
165 delegate.handleCharData(chars);
166 }
167
168 public void handleForward(Mark start, Mark stop, Hashtable attrs, Hashtable param)
169 throws JasperException
170 {
171 doAction();
172 delegate.handleForward(start, stop, attrs, param);
173 }
174
175 public void handleInclude(Mark start, Mark stop, Hashtable attrs, Hashtable param)
176 throws JasperException
177 {
178 doAction();
179 delegate.handleInclude(start, stop, attrs, param);
180 }
181
182 public void handleTagBegin(Mark start, Hashtable attrs, String prefix,
183 String shortTagName, TagLibraryInfoImpl tli,
184 TagInfo ti)
185 throws JasperException
186 {
187 doAction();
188 delegate.handleTagBegin(start, attrs, prefix, shortTagName, tli, ti);
189 }
190
191 public void handleTagEnd(Mark start, Mark stop, String prefix,
192 String shortTagName, Hashtable attrs,
193 TagLibraryInfoImpl tli, TagInfo ti)
194 throws JasperException
195 {
196 doAction();
197 delegate.handleTagEnd(start, stop, prefix, shortTagName, attrs, tli, ti);
198 }
199
200 public TagLibraries getTagLibraries() {
201 return delegate.getTagLibraries();
202 }
203 }
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