1 /*
2 * $Header: /home/cvs/jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/core/IncludeTag.java,v 1.8 2002/08/23 10:29:18 jstrachan Exp $
3 * $Revision: 1.8 $
4 * $Date: 2002/08/23 10:29:18 $
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: IncludeTag.java,v 1.8 2002/08/23 10:29:18 jstrachan Exp $
61 */
62
63 package org.apache.commons.jelly.tags.core;
64
65 import java.net.URL;
66
67 import org.apache.commons.jelly.JellyContext;
68 import org.apache.commons.jelly.MissingAttributeException;
69 import org.apache.commons.jelly.Script;
70 import org.apache.commons.jelly.TagSupport;
71 import org.apache.commons.jelly.XMLOutput;
72
73 /*** A tag which conditionally evaluates its body based on some condition
74 *
75 * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
76 * @version $Revision: 1.8 $
77 */
78
79 public class IncludeTag extends TagSupport {
80
81 private String uri;
82
83 private boolean shouldExport;
84 private boolean shouldInherit;
85
86 public IncludeTag() {
87 this.shouldExport = false;
88 this.shouldInherit = true;
89 }
90
91 public void setInherit(String inherit) {
92 if ( "true".equals( inherit ) ) {
93 this.shouldInherit = true;
94 }
95 }
96
97 public void setExport(String export) {
98 if ( "true".equals( export ) ) {
99 this.shouldExport = true;
100 }
101 }
102
103 public boolean isInherit() {
104 return this.shouldInherit;
105 }
106
107 public boolean isExport() {
108 return this.shouldExport;
109 }
110
111 // Tag interface
112
113 //-------------------------------------------------------------------------
114
115 public void doTag(XMLOutput output) throws Exception {
116
117 if (uri == null) {
118
119 throw new MissingAttributeException( "uri" );
120
121 }
122
123 // we need to create a new JellyContext of the URI
124
125 // take off the script name from the URL
126
127 context.runScript(uri, output, isExport(), isInherit() );
128 }
129
130 // Properties
131
132 //-------------------------------------------------------------------------
133
134 /*** Sets the URI (relative URI or absolute URL) for the script to evaluate. */
135
136 public void setUri(String uri) {
137
138 this.uri = uri;
139
140 }
141
142 }
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