Simple demo of JDOM
/*
* Copyright (c) Ian F. Darwin, http://www.darwinsys.com/, 1996-2002.
* All rights reserved. Software written by Ian F. Darwin and others.
* $Id: LICENSE,v 1.8 2004/02/09 03:33:38 ian Exp $
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* Java, the Duke mascot, and all variants of Sun's Java "steaming coffee
* cup" logo are trademarks of Sun Microsystems. Sun's, and James Gosling's,
* pioneering role in inventing and promulgating (and standardizing) the Java
* language and environment is gratefully acknowledged.
*
* The pioneering role of Dennis Ritchie and Bjarne Stroustrup, of AT&T, for
* inventing predecessor languages C and C++ is also gratefully acknowledged.
*/
import java.io.IOException;
import java.util.Iterator;
import java.util.List;
import org.jdom.Comment;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.JDOMException;
import org.jdom.ProcessingInstruction;
import org.jdom.input.DOMBuilder;
import org.jdom.input.SAXBuilder;
import org.jdom.output.DOMOutputter;
/*
* Simple demo of JDOM
*/
public class JDOMDemo {
public static void main(String[] args) {
// Must be at least one file or URL argument
if (args.length == 0) {
System.out.println("Usage: java JDOMDemo URL [...]");
}
SAXBuilder saxBuilder = new SAXBuilder();
DOMBuilder domBuilder = new DOMBuilder();
for (int i = 0; i < args.length; i++) {
try {
Document jdomDocument = saxBuilder.build(args[i]);
DOMOutputter domOutputter = new DOMOutputter();
/*
* Test getting DOM Document from JDOM Document
org.w3c.dom.Document domDocument = domOutputter.output(doc);
*/
/*
* Test getting DOM Element from JDOM Element
*/
org.w3c.dom.Element domElement =
domOutputter.output(jdomDocument.getRootElement());
/*
* Test getting JDOM Element from DOM Element
*/
org.jdom.Element jdomElement = domBuilder.build(domElement);
demo(jdomElement);
} catch (JDOMException e) { // indicates a well-formedness or other error
System.out.println(args[i] + " is not a well formed XML document.");
System.out.println(e.getMessage());
} catch (IOException ex) {
System.out.println("Input or Output error:" +
args[i] + ": " + ex);
}
}
}
public static void demo(Document doc) {
List children = doc.getContent();
Iterator iterator = children.iterator();
while (iterator.hasNext()) {
Object o = iterator.next();
if (o instanceof Element) {
demo((Element) o);
}
else if (o instanceof Comment)
doComment((Comment) o);
else if (o instanceof ProcessingInstruction)
doPI((ProcessingInstruction) o);
}
}
public static void demo(Element element) {
System.out.println("Element " + element);
List attributes = element.getAttributes();
List children = element.getContent();
Iterator iterator = children.iterator();
while (iterator.hasNext()) {
Object o = iterator.next();
if (o instanceof Element) {
demo((Element) o);
}
else if (o instanceof Comment)
doComment((Comment)o);
else if (o instanceof ProcessingInstruction)
doPI((ProcessingInstruction)o);
else if (o instanceof String) {
System.out.println("String: " + o);
}
}
}
public static void doComment(Comment c) {
System.out.println("Comment: " + c);
}
public static void doPI(ProcessingInstruction pi) {
System.out.println("PI: " + pi);
}
}
// demo xml file
/*
<?xml version="1.0"?>
<people>
<person>
<name>Ian Darwin</name>
<email>http://www.darwinsys.com/</email>
<country>Canada</country>
</person>
<person>
<name>Another Darwin</name>
<email type="intranet">afd@node1</email>
<country>Canada</country>
</person>
</people>
*/
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