Error in SAX Parsing

Question

Hi Team,
I am facing an issue while implementing a java mapping through SAX parsing.I am explaining it in details:
Source Structure   
=================
MT_OB_SAX_MAP
>NUMBER1
>NUMBER2
Target Structure
==================
MT_IB_SAX_MAP
>ADD
>MUL
>SUB
The code that has been written to achieve this is:
//import java.io.FileInputStream;
//import java.io.FileOutputStream;
import com.sap.aii.mapping.api.StreamTransformation;
import java.io.*;
import java.util.Map;
import javax.xml.parsers.*;
import org.xml.sax.*;
import org.xml.sax.helpers.*;
public class saxmapfinal1 extends DefaultHandler implements StreamTransformation
private Map map;
private OutputStream out;
private boolean input1 = false;
private boolean input2 = false;
private int number1;
private int number2;
private int addvalue;
private int mulvalue;
private int subvalue;
String lineEnd =  System.getProperty("line.separator");
public void setParameter (Map param)
map = param;
public void execute (InputStream in, OutputStream out)
throws com.sap.aii.mapping.api.StreamTransformationException
DefaultHandler handler = this;
SAXParserFactory factory = SAXParserFactory.newInstance();
try {
      SAXParser saxParser = factory.newSAXParser();
      this.out = out;
      saxParser.parse(in, handler);
catch (Throwable t)
t.printStackTrace();
private void write (String s) throws SAXException{
try{
out.write(s.getBytes());
out.flush();
catch (IOException e){
throw new SAXException("I/O error", e);
public void startDocument () throws SAXException{
write("<?xml version=1.0 encoding=UTF-8?>");
write(lineEnd);
write("<ns0:MT_IB_SAX_MAP xmlns:ns0=urn:bp:xi:hr:edm:test:100>");
write(lineEnd);
public void endDocument () throws SAXException
write("</ns0:MT_IB_SAX_MAP>");
try { out.flush();
catch (IOException e) {
throw new SAXException("I/O error", e);
public void startElement (String namespaceURI, String sName, String qName,Attributes attrs)  
throws SAXException {
String eName = sName;
if ("".equals(eName))
eName = qName;
if(eName.equals("NUMBER1"))
input1 = true;
if(eName.equals("NUMBER2"))
input2 = true;             
public void endElement (String namespaceURI, String sName, String qName) throws SAXException {
String eName = sName;
if ("".equals(eName))
eName = qName;
if(eName.equals("NUMBER1"))
input1 = false;
if(eName.equals("NUMBER2"))
input2 = false;
public void characters(char[] chars,int startIndex, int endIndex) throws SAXException
String dataString =
new String(chars, startIndex, endIndex).trim();
if (input1) {
try
number1 = Integer.parseInt(dataString);
} catch(NumberFormatException nfe)
if (input2) {
number2 = Integer.parseInt(dataString);
if (input2 == true)
addvalue = number1 + number2;
mulvalue =  number1 * number2;
subvalue = number1 - number2;
write("<ADD>" + addvalue +"</ADD>");
write(lineEnd);
write("<MUL>" + mulvalue +"</MUL>");
write(lineEnd);
write("<SUB>" + subvalue +"</SUB>");
write(lineEnd);
But while executing this in XI I am facing an error as "XML not well formed" but I am not able to know why this error is comming.
Can you please throw some light why this error is happening.?IWhat us the error in the code and what should be the correct code?
Many thanks for the support that I got in past.
Regards
Atanu Mazumdar
Edited by: ATANU1 on Apr 4, 2011 4:16 PM

Answer 1

Just use characters() method for building string. Use endElement() to process that string.