org.apache.xmlgraphics.xmp.merge.MergeRuleSet Maven / Gradle / Ivy
/*
* 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.
*/
/* $Id: MergeRuleSet.java 750418 2009-03-05 11:03:54Z vhennebert $ */
package org.apache.xmlgraphics.xmp.merge;
import java.util.Map;
import org.apache.xmlgraphics.util.QName;
import org.apache.xmlgraphics.xmp.XMPProperty;
/**
* Represents a set of rules used to merge to XMP properties. By default, all properties are
* merged by replacing any existing values with the value from the source XMP.
*/
public class MergeRuleSet {
private Map rules = new java.util.HashMap();
private PropertyMerger defaultMerger = new ReplacePropertyMerger();
/** Main constructor. */
public MergeRuleSet() {
}
/**
* Returns the PropertyMerger that shall be used when merging the given property.
* @param prop the property to be merged
* @return the PropertyMerger to be used for merging the property
*/
public PropertyMerger getPropertyMergerFor(XMPProperty prop) {
PropertyMerger merger = (PropertyMerger)rules.get(prop.getName());
return (merger != null ? merger : defaultMerger);
}
/**
* Adds a merge rule to this set.
* @param propName the name of the property
* @param merger the property merger to be used for this property
*/
public void addRule(QName propName, PropertyMerger merger) {
rules.put(propName, merger);
}
}