org.broadleafcommerce.common.extensibility.context.merge.handlers.AttributePreserveInsert Maven / Gradle / Ivy
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* BroadleafCommerce Common Libraries
* %%
* Copyright (C) 2009 - 2013 Broadleaf Commerce
* %%
* 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,
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package org.broadleafcommerce.common.extensibility.context.merge.handlers;
import org.apache.commons.collections.CollectionUtils;
import org.w3c.dom.Attr;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import java.util.Arrays;
import java.util.Comparator;
import java.util.List;
/**
* Merge the attributes of a source and patch node, only adding attributes from
* the patch side. When the same attribute is encountered in the source and
* patch children list, the source attribute is left untouched.
* @author jfischer
*/
public class AttributePreserveInsert extends BaseHandler {
public Node[] merge(List nodeList1, List nodeList2, List exhaustedNodes) {
if (CollectionUtils.isEmpty(nodeList1) || CollectionUtils.isEmpty(nodeList2)) {
return null;
}
Node node1 = nodeList1.get(0);
Node node2 = nodeList2.get(0);
NamedNodeMap attributes2 = node2.getAttributes();
Comparator