Find Container With Attribute Value Or Create And Set : DOM Attribute « XML « Java

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Java » XML » DOM Attribute 




Find Container With Attribute Value Or Create And Set
  
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.Iterator;

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

/*******************************************************************************
 * Copyright (C) 2007 Google Inc.
 
 * 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, 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.
 ******************************************************************************/

/**
 * Various XML utilities.
 
 @author simonjsmith, ksim
 @version 1.1 - ksim - March 6th, 2007 - Added functions regarding streaming
 @version 1.2 - ksim - March 10th, 2007 - Added functions regarding DOM
 *          manipulation
 */
public class Utils {
  public static Element findContainerWithAttributeValueElseCreateAndSet(
      Document document, Element parent, String element, String value,
      String attributeName, String attributeValue) {

    Element e = findContainerWithAttributeValueElseCreate(document, parent,
        element, attributeName, attributeValue);
    e.appendChild(document.createTextNode(value));

    return e;
  }
  public static Element findContainerWithAttributeValueElseCreate(
      Document document, Element parent, String element,
      String attributeName, String attributeValue) {

    NodeList nl = parent.getElementsByTagName(element);
    Element e;
    for (int i = 0; i < nl.getLength(); i++) {
      e = (Elementnl.item(i);
      if (e.getAttribute(attributeName).equals(attributeValue)) {
        return e;
      }
    }

    e = document.createElement(element);
    parent.appendChild(e);
    e.setAttribute(attributeName, attributeValue);

    return e;
  }

}

   
    
  














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