001    /*
002     $Id: AntProjectPropertiesDelegate.java 2566 2005-07-18 22:11:48Z glaforge $
003    
004     Copyright 2005 (C) Guillaume Laforge. All Rights Reserved.
005    
006     Redistribution and use of this software and associated documentation
007     ("Software"), with or without modification, are permitted provided
008     that the following conditions are met:
009    
010     1. Redistributions of source code must retain copyright
011        statements and notices.  Redistributions must also contain a
012        copy of this document.
013    
014     2. Redistributions in binary form must reproduce the
015        above copyright notice, this list of conditions and the
016        following disclaimer in the documentation and/or other
017        materials provided with the distribution.
018    
019     3. The name "groovy" must not be used to endorse or promote
020        products derived from this Software without prior written
021        permission of The Codehaus.  For written permission,
022        please contact info@codehaus.org.
023    
024     4. Products derived from this Software may not be called "groovy"
025        nor may "groovy" appear in their names without prior written
026        permission of The Codehaus. "groovy" is a registered
027        trademark of The Codehaus.
028    
029     5. Due credit should be given to The Codehaus -
030        http://groovy.codehaus.org/
031    
032     THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS
033     ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
034     NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
035     FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
036     THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
037     INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
038     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
039     SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
040     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
041     STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
042     ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
043     OF THE POSSIBILITY OF SUCH DAMAGE.
044    
045     */
046    
047    package org.codehaus.groovy.ant;
048    
049    import org.apache.tools.ant.Project;
050    
051    import java.util.Hashtable;
052    import java.util.Collection;
053    import java.util.Enumeration;
054    import java.util.Map;
055    import java.util.Set;
056    import java.util.Iterator;
057    
058    /**
059     * @author Guillaume Laforge
060     */
061    public class AntProjectPropertiesDelegate extends Hashtable {
062    
063        private Project project;
064    
065        public AntProjectPropertiesDelegate(Project project) {
066            super();
067            this.project = project;
068        }
069    
070        public synchronized int hashCode() {
071            return project.getProperties().hashCode();
072        }
073    
074        public synchronized int size() {
075            return project.getProperties().size();
076        }
077    
078        /**
079         * @throws UnsupportedOperationException is always thrown when this method is invoked. The Project properties are immutable.
080         */    
081        public synchronized void clear() {
082            throw new UnsupportedOperationException("Impossible to clear the project properties.");
083        }
084    
085        public synchronized boolean isEmpty() {
086            return project.getProperties().isEmpty();
087        }
088    
089        public synchronized Object clone() {
090            return project.getProperties().clone();
091        }
092    
093        public synchronized boolean contains(Object value) {
094            return project.getProperties().contains(value);
095        }
096    
097        public synchronized boolean containsKey(Object key) {
098            return project.getProperties().containsKey(key);
099        }
100    
101        public boolean containsValue(Object value) {
102            return project.getProperties().containsValue(value);
103        }
104    
105        public synchronized boolean equals(Object o) {
106            return project.getProperties().equals(o);
107        }
108    
109        public synchronized String toString() {
110            return project.getProperties().toString();
111        }
112    
113        public Collection values() {
114            return project.getProperties().values();
115        }
116    
117        public synchronized Enumeration elements() {
118            return project.getProperties().elements();
119        }
120    
121        public synchronized Enumeration keys() {
122            return project.getProperties().keys();
123        }
124    
125        public AntProjectPropertiesDelegate(Map t) {
126            super(t);
127        }
128    
129        public synchronized void putAll(Map t) {
130            Set keySet = t.keySet();
131            for (Iterator iterator = keySet.iterator(); iterator.hasNext();) {
132                Object key = iterator.next();
133                Object value = t.get(key);
134                put(key, value);
135            }
136        }
137    
138        public Set entrySet() {
139            return project.getProperties().entrySet();
140        }
141    
142        public Set keySet() {
143            return project.getProperties().keySet();
144        }
145    
146        public synchronized Object get(Object key) {
147            return project.getProperties().get(key);
148        }
149    
150        /**
151         * @throws UnsupportedOperationException is always thrown when this method is invoked. The Project properties are immutable.
152         */
153        public synchronized Object remove(Object key) {
154            throw new UnsupportedOperationException("Impossible to remove a property from the project properties.");
155        }
156    
157        public synchronized Object put(Object key, Object value) {
158            Object oldValue = null;
159            if (containsKey(key)) {
160                oldValue = get(key);
161            }
162            project.setProperty(key.toString(), value.toString());
163            return oldValue;
164        }
165    }