1 /*
2 * $Header: /home/cvs/jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/jeez/JeezTagLibrary.java,v 1.7 2002/08/27 14:04:29 jstrachan Exp $
3 * $Revision: 1.7 $
4 * $Date: 2002/08/27 14:04:29 $
5 *
6 * ====================================================================
7 *
8 * The Apache Software License, Version 1.1
9 *
10 * Copyright (c) 1999-2002 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", "Commons", 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 * $Id: JeezTagLibrary.java,v 1.7 2002/08/27 14:04:29 jstrachan Exp $
61 */
62
63 package org.apache.commons.jelly.tags.jeez;
64
65 import java.util.Iterator;
66 import java.util.List;
67 import java.util.Set;
68 import java.util.HashSet;
69
70 import org.apache.commons.jelly.JellyContext;
71 import org.apache.commons.jelly.JellyException;
72 import org.apache.commons.jelly.impl.TagScript;
73 import org.apache.commons.jelly.Script;
74 import org.apache.commons.jelly.Tag;
75 import org.apache.commons.jelly.TagLibrary;
76 import org.apache.commons.jelly.impl.BeanTagScript;
77 import org.apache.commons.jelly.impl.DynamicTagLibrary;
78 import org.apache.commons.jelly.impl.DynaTagScript;
79 import org.apache.commons.jelly.impl.TagFactory;
80 import org.apache.commons.jelly.tags.ant.AntTagLibrary;
81 import org.apache.commons.jelly.tags.werkz.WerkzTagLibrary;
82 // import org.apache.commons.jelly.tags.core.CoreTagLibrary;
83
84 import org.apache.tools.ant.Project;
85
86 import org.apache.commons.logging.Log;
87 import org.apache.commons.logging.LogFactory;
88
89 import org.xml.sax.Attributes;
90
91 /*** Convenience taglib that puts jelly:core, jelly:werkz and jelly:ant
92 * into a single namespace.
93 *
94 * @author <a href="mailto:bob@eng.werken.com">bob mcwhirter</a>
95 * @version $Revision: 1.7 $
96 */
97 public class JeezTagLibrary extends DynamicTagLibrary {
98
99 /*** The Log to which logging calls will be made. */
100 private Log log = LogFactory.getLog(JeezTagLibrary.class);
101
102 /*** jelly:core taglib. */
103 // private TagLibrary coreTagLib = new CoreTagLibrary();
104
105 /*** jelly:werkz taglib. */
106 private TagLibrary werkzTagLib = new WerkzTagLibrary();
107
108 /*** jelly:ant taglib. */
109 private AntTagLibrary antTagLib= new AntTagLibrary();
110
111 public TagScript createTagScript(
112 final String name,
113 Attributes attrs
114 ) throws Exception {
115
116 if ( name.equals( "tagdef" ) ) {
117 return new BeanTagScript(
118 new TagFactory() {
119 public Tag createTag() {
120 return new TagDefTag( JeezTagLibrary.this );
121 }
122 }
123 );
124 }
125 if ( name.equals( "target" ) ) {
126 return new BeanTagScript(
127 new TagFactory() {
128 public Tag createTag() {
129 return new TargetTag();
130 }
131 }
132 );
133 }
134 TagScript script = this.werkzTagLib.createTagScript( name, attrs );
135 if ( script == null ) {
136 script = antTagLib.createCustomTagScript( name, attrs );
137 if ( script == null ) {
138 return new DynaTagScript(
139 new TagFactory() {
140 public Tag createTag() throws Exception {
141 // lets try create a dynamic tag first
142 Tag tag = JeezTagLibrary.this.createTag(name);
143 if ( tag != null ) {
144 return tag;
145 }
146 else {
147 return antTagLib.createTag( name );
148 }
149 }
150 }
151 );
152 }
153 }
154 return script;
155 }
156 }
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