parsertest.java

java web services how to program

// ParserTest.java
// Parse and display an XML Document.
package com.deitel.jws1.xml;

// Java core libraries
import java.io.*;
import java.util.*;

// Java standard extensions
import javax.xml.parsers.*;
import javax.xml.transform.*;
import javax.xml.transform.dom.*;
import javax.xml.transform.stream.*;

// third-party libraries
import org.w3c.dom.*;
import org.xml.sax.SAXException;      

public class ParserTest {
      
   public static void main( String args[] ) throws Exception
   {   
      // check command-line arguments for file name
      if ( args.length != 1 ) {
         
         // print usage information
         System.err.println( 
            "Usage: java -jar ParserTest.jar filename" );
         
         System.exit( 1 );
      }      
         
      // get a DocumentBuilderFactory for creating
      // a DocumentBuilder (i.e., an XML parser)
      DocumentBuilderFactory factory = 
         DocumentBuilderFactory.newInstance();

      // get a DocumentBuilder from the DocumentBuilderFactory
      DocumentBuilder builder = factory.newDocumentBuilder();

      // parse an XML document and create a DOM tree in 
      // memory
      Document document = builder.parse( 
         new File( args[ 0 ] ) );
         
      // create DOMSource for source XML document
      Source xmlSource = new DOMSource( document );

      // create StreamResult for transformation result
      Result result = new StreamResult( System.out );
      
      // create TransformerFactory for building Transformers
      TransformerFactory transformerFactory =
         TransformerFactory.newInstance();

      // create Transformer for XSL transformation
      Transformer transformer = 
         transformerFactory.newTransformer();
      
      transformer.setOutputProperty( "method", "xml" );
      transformer.setOutputProperty( "indent", "yes" );

      // transform and deliver content to client
      transformer.transform( xmlSource, result );           
   }
}

/*
 **************************************************************************
 * (C) Copyright 2003 by Deitel & Associates, Inc. and Prentice Hall.     *
 * All Rights Reserved.                                                   *
 *                                                                        *
 * DISCLAIMER: The authors and publisher of this book have used their     *
 * best efforts in preparing the book. These efforts include the          *
 * development, research, and testing of the theories and programs        *
 * to determine their effectiveness. The authors and publisher make       *
 * no warranty of any kind, expressed or implied, with regard to these    *
 * programs or to the documentation contained in these books. The authors *
 * and publisher shall not be liable in any event for incidental or       *
 * consequential damages in connection with, or arising out of, the       *
 * furnishing, performance, or use of these programs.                     *
 **************************************************************************
*/