1 /*
2 * $Header: /home/cvs/jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/core/ImportTag.java,v 1.2 2002/08/22 09:29:55 jstrachan Exp $
3 * $Revision: 1.2 $
4 * $Date: 2002/08/22 09:29:55 $
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: ImportTag.java,v 1.2 2002/08/22 09:29:55 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.MissingAttributeException;
68 import org.apache.commons.jelly.TagSupport;
69 import org.apache.commons.jelly.XMLOutput;
70
71 /*** Imports another script.
72 *
73 * <p>
74 * By default, the imported script does not have access to
75 * the parent script's variable context. This behaviour
76 * may be modified using the <code>inherit</code> attribute.
77 * </p>
78 *
79 * @author <a href="mailto:bob@eng.werken.com">bob mcwhirter</a>
80 * @version $Revision: 1.2 $
81 */
82
83 public class ImportTag extends TagSupport {
84
85 private String uri;
86 private boolean inherit;
87
88 public ImportTag() {
89 }
90
91
92 // Tag interface
93 //-------------------------------------------------------------------------
94 public void doTag(XMLOutput output) throws Exception {
95 if (uri == null) {
96 throw new MissingAttributeException( "uri" );
97 }
98
99 // we need to create a new JellyContext of the URI
100 // take off the script name from the URL
101 context.runScript(uri, output, true, isInherit() );
102 }
103
104 // Properties
105 //-------------------------------------------------------------------------
106
107 /***
108 * @return whether property inheritence is enabled
109 */
110 public boolean isInherit() {
111 return inherit;
112 }
113
114 /***
115 * Sets whether property inheritence is enabled or disabled
116 */
117 public void setInherit(boolean inherit) {
118 this.inherit = inherit;
119 }
120
121 /***
122 * Sets the URI (relative URI or absolute URL) for the script to evaluate.
123 */
124 public void setUri(String uri) {
125 this.uri = uri;
126 }
127
128 }
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