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Groovy example source code file (AntProjectPropertiesDelegate.java)

This example Groovy source code file (AntProjectPropertiesDelegate.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Groovy tags/keywords

antprojectpropertiesdelegate, antprojectpropertiesdelegate, enumeration, enumeration, hashtable, impossible, iterator, object, object, project, set, set, string, unsupportedoperationexception, util

The Groovy AntProjectPropertiesDelegate.java source code

/*
 * Copyright 2003-2007 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.codehaus.groovy.ant;

import org.apache.tools.ant.Project;

import java.util.Hashtable;
import java.util.Collection;
import java.util.Enumeration;
import java.util.Map;
import java.util.Set;
import java.util.Iterator;

/**
 * @author Guillaume Laforge
 */
public class AntProjectPropertiesDelegate extends Hashtable {

    private Project project;

    public AntProjectPropertiesDelegate(Project project) {
        super();
        this.project = project;
    }

    public synchronized int hashCode() {
        return project.getProperties().hashCode();
    }

    public synchronized int size() {
        return project.getProperties().size();
    }

    /**
     * @throws UnsupportedOperationException is always thrown when this method is invoked. The Project properties are immutable.
     */    
    public synchronized void clear() {
        throw new UnsupportedOperationException("Impossible to clear the project properties.");
    }

    public synchronized boolean isEmpty() {
        return project.getProperties().isEmpty();
    }

    public synchronized Object clone() {
        return project.getProperties().clone();
    }

    public synchronized boolean contains(Object value) {
        return project.getProperties().contains(value);
    }

    public synchronized boolean containsKey(Object key) {
        return project.getProperties().containsKey(key);
    }

    public boolean containsValue(Object value) {
        return project.getProperties().containsValue(value);
    }

    public synchronized boolean equals(Object o) {
        return project.getProperties().equals(o);
    }

    public synchronized String toString() {
        return project.getProperties().toString();
    }

    public Collection values() {
        return project.getProperties().values();
    }

    public synchronized Enumeration elements() {
        return project.getProperties().elements();
    }

    public synchronized Enumeration keys() {
        return project.getProperties().keys();
    }

    public AntProjectPropertiesDelegate(Map t) {
        super(t);
    }

    public synchronized void putAll(Map t) {
        Set keySet = t.keySet();
        for (Iterator iterator = keySet.iterator(); iterator.hasNext();) {
            Object key = iterator.next();
            Object value = t.get(key);
            put(key, value);
        }
    }

    public Set entrySet() {
        return project.getProperties().entrySet();
    }

    public Set keySet() {
        return project.getProperties().keySet();
    }

    public synchronized Object get(Object key) {
        return project.getProperties().get(key);
    }

    /**
     * @throws UnsupportedOperationException is always thrown when this method is invoked. The Project properties are immutable.
     */
    public synchronized Object remove(Object key) {
        throw new UnsupportedOperationException("Impossible to remove a property from the project properties.");
    }

    public synchronized Object put(Object key, Object value) {
        Object oldValue = null;
        if (containsKey(key)) {
            oldValue = get(key);
        }
        project.setProperty(key.toString(), value.toString());
        return oldValue;
    }
}

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