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






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 = (Element) nl.item(i);
      if (e.getAttribute(attributeName).equals(attributeValue)) {
        return e;
      }
    }

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

    return e;
  }

}

   
    
  








Related examples in the same category

1.Get all the attributes for an Element
2.Get attribute's value
3.Return the right attribute node
4.Return the value of the attribute of the given element with the given name
5.Output XML element Attributes
6.Set Attribute
7.Set an Attribute in an Element
8.Copy the attribues on one element to the other
9.Get Attribute
10.Get Attribute by QName
11.Get an Attribute from an Element. Returns an empty String if none found
12.remove Attribute
13.Find Container With Attribute Value Or Create
14.Find the first direct child with a given attribute.
15.Recursive method to find a given attribute value
16.Returns null, not "", for a nonexistent attribute
17.Retutns the value of the named attribute of the given element.
18.An Attributes implementation that can perform more operations than the attribute list helper supplied with the standard SAX2 distribution.