KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > dom4j > samples > dom > SAXDOMDemo


1 /*
2  * Copyright 2001-2004 (C) MetaStuff, Ltd. All Rights Reserved.
3  *
4  * This software is open source.
5  * See the bottom of this file for the licence.
6  *
7  * $Id: SAXDOMDemo.java,v 1.4 2005/01/29 14:52:58 maartenc Exp $
8  */
9
10 package org.dom4j.samples.dom;
11
12 import org.dom4j.samples.AbstractDemo;
13
14 import org.dom4j.Document;
15 import org.dom4j.io.DOMReader;
16 import org.dom4j.io.DOMWriter;
17 import org.dom4j.io.SAXContentHandler;
18 import org.dom4j.io.SAXReader;
19 import org.dom4j.io.SAXWriter;
20
21 /**
22  * This sample program parses an XML document as a DOM4J tree using SAX, it then
23  * creates a W3C DOM tree which is then used as input for creating a new DOM4J
24  * tree which is then output to SAX which is then parsed into another DOM4J tree
25  * which is then output as XML.
26  *
27  * This is clearly not terribly useful but demonstrates how to convert from SAX
28  * <->DOM4J and DOM4J <->DOM and DOM4J <->text
29  *
30  * @author <a HREF="mailto:james.strachan@metastuff.com">James Strachan </a>
31  * @version $Revision: 1.4 $
32  */
33 public class SAXDOMDemo extends AbstractDemo {
34
35     public static void main(String JavaDoc[] args) {
36         run(new SAXDOMDemo(), args);
37     }
38
39     public SAXDOMDemo() {
40     }
41
42     protected Document parse(String JavaDoc url) throws Exception JavaDoc {
43         SAXReader saxReader = new SAXReader();
44         Document document = saxReader.read(url);
45
46         println("Parsed to DOM4J tree using SAX: " + document);
47
48         // now lets make a DOM object
49 DOMWriter domWriter = new DOMWriter();
50         org.w3c.dom.Document JavaDoc domDocument = domWriter.write(document);
51
52         println("Converted to DOM tree: " + domDocument);
53
54         // now lets read it back as a DOM4J object
55 DOMReader domReader = new DOMReader();
56         document = domReader.read(domDocument);
57
58         println("Converted to DOM4J tree using DOM: " + document);
59
60         // now lets write it back as SAX events to
61 // a SAX ContentHandler which should build up a new document
62 SAXContentHandler contentHandler = new SAXContentHandler();
63         SAXWriter saxWriter = new SAXWriter(contentHandler, null,
64                 contentHandler);
65
66         saxWriter.write(document);
67         document = contentHandler.getDocument();
68
69         println("Converted DOM4J to SAX events then back to DOM4J: " + document);
70
71         return document;
72     }
73 }
74
75 /*
76  * Redistribution and use of this software and associated documentation
77  * ("Software"), with or without modification, are permitted provided that the
78  * following conditions are met:
79  *
80  * 1. Redistributions of source code must retain copyright statements and
81  * notices. Redistributions must also contain a copy of this document.
82  *
83  * 2. Redistributions in binary form must reproduce the above copyright notice,
84  * this list of conditions and the following disclaimer in the documentation
85  * and/or other materials provided with the distribution.
86  *
87  * 3. The name "DOM4J" must not be used to endorse or promote products derived
88  * from this Software without prior written permission of MetaStuff, Ltd. For
89  * written permission, please contact dom4j-info@metastuff.com.
90  *
91  * 4. Products derived from this Software may not be called "DOM4J" nor may
92  * "DOM4J" appear in their names without prior written permission of MetaStuff,
93  * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
94  *
95  * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
96  *
97  * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
98  * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
99  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
100  * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
101  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
102  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
103  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
104  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
105  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
106  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
107  * POSSIBILITY OF SUCH DAMAGE.
108  *
109  * Copyright 2001-2004 (C) MetaStuff, Ltd. All Rights Reserved.
110  *
111  * $Id: SAXDOMDemo.java,v 1.4 2005/01/29 14:52:58 maartenc Exp $
112  */
113
Popular Tags