Here you can find the source of mergeTextContent(NodeList nodes)
private static String mergeTextContent(NodeList nodes)
//package com.java2s; /*/*from w w w .jav a 2 s . co m*/ * 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 org.w3c.dom.Node; import org.w3c.dom.NodeList; public class Main { /** * based on the following quote from public Java5 javadoc of org.w3c.dom.Node.getTextContent method: * * "concatenation of the textContent attribute value of every child node, excluding COMMENT_NODE and * PROCESSING_INSTRUCTION_NODE nodes. This is the empty string if the node has no children" */ private static String mergeTextContent(NodeList nodes) { StringBuffer buf = new StringBuffer(); 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: text = null; break; default: text = getTextContent(n); break; } if (text != null) { buf.append(text); } } return buf.toString(); } /** * based on public Java5 javadoc of org.w3c.dom.Node.getTextContent method */ public static String getTextContent(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; } } }