1 package org.apache.commons.jelly.tags.ant;
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 Maven" 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 Maven", 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
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41 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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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 * ====================================================================
57 */
58
59 import java.util.Hashtable;
60 import java.util.Iterator;
61
62 import org.apache.commons.grant.DefaultPropsHandler;
63 import org.apache.commons.jelly.JellyContext;
64
65 /*** Implementation of a Commons Grant <code>propsHandler</code>
66 * to resolve through Jelly's context.
67 *
68 * @author <a href="mailto:bob@eng.werken.com">Bob McWhirter</a>
69 * @author <a href="mailto:stephenh@chase3000.com">Stephen Haberman</a>
70 */
71 public class JellyPropsHandler extends DefaultPropsHandler {
72
73 /*** The JellyContext. */
74 private JellyContext context;
75
76 /*** Simple constructor with the context to be used.
77 *
78 * @param context The context to be used.
79 */
80 public JellyPropsHandler(JellyContext context) {
81 this.context = context;
82 }
83
84 /*** Set an ant property.
85 *
86 * @param name The property name.
87 * @param value The property value.
88 */
89 public void setProperty(String name, String value) {
90 this.context.setVariable(name, value);
91 }
92
93 /*** Retrieve an ant property.
94 *
95 * @param name The property name.
96 *
97 * @return The property value.
98 */
99 public String getProperty(String name) {
100 if (name == null) {
101 return null;
102 }
103 Object value = this.context.getVariable(name);
104 if (value == null) {
105 return null;
106 }
107 else {
108 return value.toString();
109 }
110 }
111
112 /*** Retrieve all ant properties.
113 *
114 * @return A <code>Hashtable</code> of all properties.
115 */
116 public Hashtable getProperties() {
117 Hashtable h = new Hashtable();
118 for (Iterator i = this.context.getVariableNames(); i.hasNext(); ) {
119 String name = (String) i.next();
120 Object value = this.context.getVariable(name);
121 if (value != null) {
122 h.put(name, value.toString());
123 }
124 }
125 return h;
126 }
127
128 }
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