Java by API/org.xml.sax/XMLReader

XMLReader: parse(String systemId) throws IOException, SAXException

   <source lang="java">
 

/*

* Copyright (c) Ian F. Darwin, http://www.darwinsys.ru/, 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 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;
           }
       }
   }

}

 </source>
   
  
 
  

XMLReader: setContentHandler(ContentHandler handler)

   <source lang="java">
 

/*

* Copyright (c) Ian F. Darwin, http://www.darwinsys.ru/, 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 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;
           }
       }
   }

}

 </source>