SAX1 vs SAX2

"Luzum, Steven J" <[email protected]> Mon, 31 Mar 2003 11:18:09 -0600

Newsgroups	gmane.text.xml.sax.general
Message-ID	<45891E243FF2E5498C85C8A5340E94FA907EF8@exccpgo04.corp.xcelenergy.com>


> I have a couple of questions  I hope you can help me out with.  I took over the maintenance of an app that uses XML to display reports and query results.  I am trying to resolve the Deprecated APIs when I compile.
> 
> There is a XMLParser object that uses a couple of SAX1 methods that I am trying to replace.  (see attached)
> 
> I have everything replaced except the following code:
> 
> //org.xml.sax.Parser parser = new com.sun.xml.parser.Parser();  		//Deprecated         <=== Original code
>   org.xml.sax.XMLReader parser = new com.sun.xml.XMLReader.parse();       		    <=== What I'm trying to replace it with
> 
> here is the compiling error I get:
> com/xcel/servconn/dcf/sax/XMLParser.java [96:1] cannot resolve symbol
> symbol  : class parse  
> location: package XMLReader
>             org.xml.sax.XMLReader parser = new com.sun.xml.XMLReader.parse();
>                                                                     ^
> 1 error
> Errors compiling XMLParser.
> 
> When I deploy, I deploy with XML.jar as an additional package.  Do I need to get a new XMl.jar file in order for this to compile properly?  Where would I get it?
> 
> .> >  <<XMLParserNew2.txt>> 
> Thanks in advance for any assistance
> 
> Steve 
>

XMLParserNew2.txt (text/plain, 4.4 KB)

/*
 * XMLParser.java
 *
 * Created on June 22, 2001, 5:59 PM
 * Revised on May 17, 2002, 8:45 AM
 */

/**
 * This class is responsible for invoking the Sax parser and parses the provided file.
 * <BR>
 */

package com.xcel.servconn.dcf.sax;

import java.io.*;
import java.net.*;
import java.util.*;

import org.xml.sax.*;
import org.xml.sax.ext.*;
//import org.xml.sax.helpers.ParserFactory;     //Deprecated Class
import org.xml.sax.helpers.XMLReaderFactory;    //New Class
import org.xml.sax.helpers.DefaultHandler;      //New Class
import org.xml.sax.XMLReader;                   //New Class
import org.xml.sax.ContentHandler;              //New Class
//import org.xml.sax.DocumentHandler;           //Deprecated Class

import com.xcel.servconn.dcf.*;
 
/**
 *
 * @author ServConn Team (Mark D. Johnson, Steven J. Luzum, Muhammad U. Khan)
 * @version 3.0 released to production 9/22/01 to the South only
 * @version 3.1 released to production 2/11/02 to the South and Wisconsin
 * @version 3.2 released to production 4/22/02 to all of Xcel.
 * @version 3.3 released to Production 10/15/02 to all of Xcel.
 * @version 4.0 released to production 3/3/02 to all of Xcel.
 */

public class XMLParser {
	
    /**
     * It initiate the Sax parser when it is passed the Sax base handle and an input source
     * @param xmlHandler Sax Handle Base
     * @param inputsource Input source
     * @exception BusinessLogicException
     */
    //public static void parseXML(HandlerBase xmlHandler, InputSource inputSource) throws BusinessLogicException {  //Deprecated Method
    public static void parseXML(DefaultHandler xmlHandler, InputSource inputSource) throws BusinessLogicException {
        try {
            parse(xmlHandler, inputSource);
            
        } catch (Exception ex){
            new BusinessLogicException(ex.getMessage());
            //System.out.println(e);
            //e.printStackTrace();
        }
    }

    /**
     * It initiate the Sax parser when it is passed the Sax base handle and a String
     * It creates an input source for the provided string.
     * @param xmlHandler Sax Handle Base
     * @param xmlString
     * @exception BusinessLogicException
     */
    //public static void parseXML(HandlerBase xmlHandler, String xmlString) throws BusinessLogicException {   //Deprecated Method
    public static void parseXML(DefaultHandler xmlHandler, String xmlString) throws BusinessLogicException {
        try {
            StringReader xmlReader = new StringReader(xmlString);
            InputSource inputSource = new InputSource(xmlReader);
            parse(xmlHandler, inputSource);
            
        } catch (Exception ex){
            new BusinessLogicException(ex.getMessage());
            //System.out.println(e);
            //e.printStackTrace();
        }

    }


    /**
     * Create a Sax parser using Sax interfaces and classes. Also create
     * document handler for the XML document.
     * @param xmlHandler Sax Handle Base
     * @param is Input Source
     * @exception Default Exception
     * @exception SAXParseException
     */
    //private static void parse(HandlerBase handler, InputSource is) throws BusinessLogicException {    //Deprecated Method
    private static void parse(DefaultHandler handler, InputSource is) throws BusinessLogicException {
        try {
            //create a SAX parser using SAX interfaces and classes
            //org.xml.sax.Parser parser = new com.sun.xml.parser.Parser();  //Deprecated
            org.xml.sax.XMLReader parser = new com.sun.xml.XMLReader.parse(); <===== Compile error!!!!!!!!

            //create document handler to do something useful with the XML
            //document being parsed by the parser.
            //parser.setDocumentHandler(handler);   //Deprecated Method
            parser.setContentHandler(handler);
            parser.setErrorHandler(new XmlErrorHandler());
            parser.parse(is);
            
        } catch (SAXParseException saxe){
            System.out.println("An error occured in XmlErrorHanlder. Line number: " + saxe.getLineNumber());
            System.out.println("The error message is: " + saxe.getMessage());
            saxe.printStackTrace();
            
        } catch (Exception ex){
            System.out.println("Exception parsing: " + ex.getMessage());
            ex.printStackTrace();
        }
    }
}