Simple lister - extract name and children tags
/*
* 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
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* 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 org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;
import org.xml.sax.helpers.XMLReaderFactory;
/**
* Simple lister - extract name and children tags from a user file. Version for
* SAX 2.0
*
* @author Ian Darwin
* @version $Id: SAXLister.java,v 1.12 2004/03/14 17:19:18 ian Exp $
*/
public class SAXLister {
public static void main(String[] args) throws Exception {
new SAXLister(args);
}
public SAXLister(String[] args) throws SAXException, IOException {
XMLReader parser = XMLReaderFactory.createXMLReader();
// should load properties rather than hardcoding class name
parser.setContentHandler(new PeopleHandler());
parser.parse(args.length == 1 ? args[0] : "people.xml");
}
/**
* Inner class provides DocumentHandler
*/
class PeopleHandler extends DefaultHandler {
boolean person = false;
boolean email = false;
public void startElement(String nsURI, String localName,
String rawName, Attributes attributes) throws SAXException {
// Consult rawName since we aren't using xmlns prefixes here.
if (rawName.equalsIgnoreCase("name"))
person = true;
if (rawName.equalsIgnoreCase("email"))
email = true;
}
public void characters(char[] ch, int start, int length) {
if (person) {
System.out.println("Person: " + new String(ch, start, length));
person = false;
} else if (email) {
System.out.println("Email: " + new String(ch, start, length));
email = false;
}
}
}
}
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