Main.java Source code

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Here is the source code for Main.java

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//package com.java2s;
/**
 *  Copyright 2005-2016 Red Hat, Inc.
 *
 *  Red Hat 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 org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class Main {
    private static String mergeTextContent(final NodeList nodes) {
        StringBuilder buf = new StringBuilder();
        for (int i = 0; i < nodes.getLength(); i++) {
            Node n = nodes.item(i);
            final String text;

            switch (n.getNodeType()) {
            case Node.COMMENT_NODE:
            case Node.PROCESSING_INSTRUCTION_NODE:
                // ignore comments when merging
                text = null;
                break;
            default:
                text = getTextContent(n);
                break;
            }

            if (text != null) {
                buf.append(text);
            }
        }
        return buf.toString();
    }

    private static String getTextContent(final Node node) {
        switch (node.getNodeType()) {
        case Node.ELEMENT_NODE:
        case Node.ATTRIBUTE_NODE:
        case Node.ENTITY_NODE:
        case Node.ENTITY_REFERENCE_NODE:
        case Node.DOCUMENT_FRAGMENT_NODE:
            return mergeTextContent(node.getChildNodes());
        case Node.TEXT_NODE:
        case Node.CDATA_SECTION_NODE:
        case Node.COMMENT_NODE:
        case Node.PROCESSING_INSTRUCTION_NODE:
            return node.getNodeValue();
        case Node.DOCUMENT_NODE:
        case Node.DOCUMENT_TYPE_NODE:
        case Node.NOTATION_NODE:
        default:
            return null;
        }
    }
}