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Java > Open Source Codes > org > apache > geronimo > deployment > util > XMLUtil


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 JavaDoc;
21 import org.w3c.dom.NodeList JavaDoc;
22 import org.w3c.dom.Node JavaDoc;
23
24 /**
25  *
26  *
27  * @version $Rev: 476049 $ $Date: 2006-11-16 23:35:17 -0500 (Thu, 16 Nov 2006) $
28  */
29 public class XMLUtil {
30     public static Object JavaDoc getContent(Element JavaDoc element) {
31         NodeList JavaDoc nl = element.getChildNodes();
32         StringBuffer JavaDoc content = new StringBuffer JavaDoc();
33         for (int i = 0; i < nl.getLength(); i++) {
34             Node JavaDoc 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 JavaDoc getChild(Element JavaDoc parent, String JavaDoc name) {
48         for (Node JavaDoc child = parent.getFirstChild(); child != null; child = child.getNextSibling()) {
49             if (child instanceof Element JavaDoc && name.equals(child.getNodeName())) {
50                 return (Element JavaDoc) child;
51             }
52         }
53         return null;
54     }
55
56     public static String JavaDoc getChildContent(Element JavaDoc parent, String JavaDoc name, String JavaDoc missing, String JavaDoc empty) {
57         Element JavaDoc child = getChild(parent, name);
58         if (child == null) {
59             return missing;
60         } else {
61             String JavaDoc content = (String JavaDoc) getContent(child);
62             return (content != null) ? content : empty;
63         }
64     }
65 }
66
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