/* Copyright (c) Oracle Corporation 2000, 2001. All Rights Reserved. */

/**
 * DESCRIPTION
 * This file demonstates a simple use of the parser and SAX API.
 * The XML file that is given to the application is parsed and 
 * prints out some information about the contents of this file.
 */

 import  java.net.URL;

 import  org.xml.sax.Parser;
 import  org.xml.sax.Locator;
 import  org.xml.sax.AttributeList;
 import  org.xml.sax.HandlerBase;
 import  org.xml.sax.InputSource;
 import  org.xml.sax.SAXException;
 import  org.xml.sax.SAXParseException;

 import  oracle.xml.parser.v2.SAXParser;

 public   class  SAXSample  extends  HandlerBase
{
   // Store the locator
   Locator locator;

    static   public   void  main(String[] argv)
   {
       try 
      {
          if  (argv.length !=  1 )
         {
            // Must pass in the name of the XML file.
            System.err.println("Usage: SAXSample filename");
            System.exit( 1 );
         }
         // Create a new handler for the parser
         SAXSample sample =  new  SAXSample();

         // Get an instance of the parser
         Parser parser =  new  SAXParser();
         
         // set validation mode
         ((SAXParser)parser).setValidationMode(SAXParser.DTD_VALIDATION);
         // Set Handlers in the parser
         parser.setDocumentHandler(sample);
         parser.setEntityResolver(sample);
         parser.setDTDHandler(sample);
         parser.setErrorHandler(sample);
    
         // Convert file to URL and parse
          try 
         {
            parser.parse(DemoUtil.createURL(argv[ 0 ]).toString());
         }
          catch  (SAXParseException e) 
         {
            System.out.println(e.getMessage());
         }
          catch  (SAXException e) 
         {
            System.out.println(e.getMessage());
         }  
      }
       catch  (Exception e)
      {
         System.out.println(e.toString());
      }
   }

   //////////////////////////////////////////////////////////////////////
   // Sample implementation of DocumentHandler interface.
   //////////////////////////////////////////////////////////////////////

    public   void  setDocumentLocator (Locator locator)
   {
      System.out.println("SetDocumentLocator:");
       this .locator = locator;
   }

    public   void  startDocument() 
   {
      System.out.println("StartDocument");
   }

    public   void  endDocument()  throws  SAXException 
   {
      System.out.println("EndDocument");
   }
      
    public   void  startElement(String name, AttributeList atts) 
                                                   throws  SAXException 
   {
      System.out.println("StartElement:"+name);
       for  ( int  i= 0 ;i<atts.getLength();i++)
      {
         String aname = atts.getName(i);
         String type = atts.getType(i);
         String value = atts.getValue(i);

         System.out.println("   "+aname+"("+type+")"+"="+value);
      }
      
   }

    public   void  endElement(String name)  throws  SAXException 
   {
      System.out.println("EndElement:"+name);
   }

    public   void  characters( char [] cbuf,  int  start,  int  len) 
   {
      System.out.print("Characters:");
      System.out.println( new  String(cbuf,start,len));
   }

    public   void  ignorableWhitespace( char [] cbuf,  int  start,  int  len) 
   {
      System.out.println("IgnorableWhiteSpace");
   }
   
   
    public   void  processingInstruction(String target, String data) 
               throws  SAXException 
   {
      System.out.println("ProcessingInstruction:"+target+" "+data);
   }
   

      
   //////////////////////////////////////////////////////////////////////
   // Sample implementation of the EntityResolver interface.
   //////////////////////////////////////////////////////////////////////


    public  InputSource resolveEntity (String publicId, String systemId)
                       throws  SAXException
   {
      System.out.println("ResolveEntity:"+publicId+" "+systemId);
      System.out.println("Locator:"+locator.getPublicId()+" "+
                  locator.getSystemId()+
                  " "+locator.getLineNumber()+" "+locator.getColumnNumber());
       return   null ;
   }

   //////////////////////////////////////////////////////////////////////
   // Sample implementation of the DTDHandler interface.
   //////////////////////////////////////////////////////////////////////

    public   void  notationDecl (String name, String publicId, String systemId)
   {
      System.out.println("NotationDecl:"+name+" "+publicId+" "+systemId);
   }

    public   void  unparsedEntityDecl (String name, String publicId,
         String systemId, String notationName)
   {
      System.out.println("UnparsedEntityDecl:"+name + " "+publicId+" "+
                         systemId+" "+notationName);
   }

   //////////////////////////////////////////////////////////////////////
   // Sample implementation of the ErrorHandler interface.
   //////////////////////////////////////////////////////////////////////


    public   void  warning (SAXParseException e)
               throws  SAXException
   {
      System.out.println("Warning:"+e.getMessage());
   }

    public   void  error (SAXParseException e)
               throws  SAXException
   {
       throw   new  SAXException(e.getMessage());
   }


    public   void  fatalError (SAXParseException e)
               throws  SAXException
   {
      System.out.println("Fatal error");
       throw   new  SAXException(e.getMessage());
   }
}