Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
/*
 * 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.
 */

import java.util.HashMap;
import java.util.Map;
import org.w3c.dom.Document;

import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class Main {
    /**
     * Creates the element mapping for the specified documents. For each node in
     * the source document an entry is created pointing to the corresponding
     * node in the destination object.
     *
     * @param doc1 the source document
     * @param doc2 the destination document
     * @return the element mapping
     */
    private static Map<Node, Node> createElementMapping(Document doc1, Document doc2) {
        Map<Node, Node> mapping = new HashMap<Node, Node>();
        createElementMappingForNodes(doc1.getDocumentElement(), doc2.getDocumentElement(), mapping);
        return mapping;
    }

    /**
     * Creates the element mapping for the specified nodes and all their child
     * nodes.
     *
     * @param n1 node 1
     * @param n2 node 2
     * @param mapping the mapping to be filled
     */
    private static void createElementMappingForNodes(Node n1, Node n2, Map<Node, Node> mapping) {
        mapping.put(n1, n2);
        NodeList childNodes1 = n1.getChildNodes();
        NodeList childNodes2 = n2.getChildNodes();
        int count = Math.min(childNodes1.getLength(), childNodes2.getLength());
        for (int i = 0; i < count; i++) {
            createElementMappingForNodes(childNodes1.item(i), childNodes2.item(i), mapping);
        }
    }
}