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    1   /**
    2    *  Licensed to the Apache Software Foundation (ASF) under one or more
    3    *  contributor license agreements.  See the NOTICE file distributed with
    4    *  this work for additional information regarding copyright ownership.
    5    *  The ASF licenses this file to You under the Apache License, Version 2.0
    6    *  (the "License"); you may not use this file except in compliance with
    7    *  the License.  You may obtain a copy of the License at
    8    *
    9    *     http://www.apache.org/licenses/LICENSE-2.0
   10    *
   11    *  Unless required by applicable law or agreed to in writing, software
   12    *  distributed under the License is distributed on an "AS IS" BASIS,
   13    *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   14    *  See the License for the specific language governing permissions and
   15    *  limitations under the License.
   16    */
   17   
   18   package org.apache.geronimo.deployment.util;
   19   
   20   import org.w3c.dom.Element;
   21   import org.w3c.dom.NodeList;
   22   import org.w3c.dom.Node;
   23   
   24   /**
   25    * 
   26    * 
   27    * @version $Rev: 476049 $ $Date: 2006-11-16 20:35:17 -0800 (Thu, 16 Nov 2006) $
   28    */
   29   public class XMLUtil {
   30       public static Object getContent(Element element) {
   31           NodeList nl = element.getChildNodes();
   32           StringBuffer content = new StringBuffer();
   33           for (int i = 0; i < nl.getLength(); i++) {
   34               Node node = nl.item(i);
   35               switch (node.getNodeType()) {
   36               case Node.ELEMENT_NODE:
   37                   return node;
   38               case Node.CDATA_SECTION_NODE:
   39               case Node.TEXT_NODE:
   40                   content.append(node.getNodeValue());
   41                   break;
   42               }
   43           }
   44           return content.toString().trim();
   45       }
   46   
   47       public static Element getChild(Element parent, String name) {
   48           for (Node child = parent.getFirstChild(); child != null; child = child.getNextSibling()) {
   49               if (child instanceof Element && name.equals(child.getNodeName())) {
   50                   return (Element) child;
   51               }
   52           }
   53           return null;
   54       }
   55   
   56       public static String getChildContent(Element parent, String name, String missing, String empty) {
   57           Element child = getChild(parent, name);
   58           if (child == null) {
   59               return missing;
   60           } else {
   61               String content = (String) getContent(child);
   62               return (content != null) ? content : empty;
   63           }
   64       }
   65   }

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