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1   /**
2    *
3    * Copyright 2003-2004 The Apache Software Foundation
4    *
5    *  Licensed under the Apache License, Version 2.0 (the "License");
6    *  you may not use this file except in compliance with the License.
7    *  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: 355877 $ $Date: 2005-12-10 18:48:27 -0800 (Sat, 10 Dec 2005) $
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  }