/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.commons.configuration;
import java.util.Iterator;
/**
* Strict comparator for configurations.
*
* @since 1.0
*
* @author <a href="mailto:[email protected]">Herve Quiroz</a>
* @author <a href="mailto:[email protected]">Yoav Shapira</a>
* @version $Revision: 439648 $, $Date: 2006-09-02 22:42:10 +0200 (Sa, 02. Sep 2006) $
*/
public class StrictConfigurationComparator implements ConfigurationComparator
{
/**
* Create a new strict comparator.
*/
public StrictConfigurationComparator()
{
}
/**
* Compare two configuration objects.
*
* @param a the first configuration
* @param b the second configuration
* @return true if keys from a are found in b and keys from b are
* found in a and for each key in a, the corresponding value
* is the sale in for the same key in b
*/
public boolean compare(Configuration a, Configuration b)
{
if (a == null && b == null)
{
return true;
}
else if (a == null || b == null)
{
return false;
}
for (Iterator keys = a.getKeys(); keys.hasNext();)
{
String key = (String) keys.next();
Object value = a.getProperty(key);
if (!value.equals(b.getProperty(key)))
{
return false;
}
}
for (Iterator keys = b.getKeys(); keys.hasNext();)
{
String key = (String) keys.next();
Object value = b.getProperty(key);
if (!value.equals(a.getProperty(key)))
{
return false;
}
}
return true;
}
}
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