Problems with a Java Mapping

Question

Hi Experts,
as part of my diploma-thesis I have to write a java SAX-Mapping, which mapps the following incoming message:
mt_MappingOUT
             set
                 set_Element_01
                 set_Element_02
                 set_Element_03
                 set_Element_10
to the following outgoinig message:
mt_MappingIN
              TABLE
                    item
                        item_FIELD_01
                        item_FIELD_10
I develped the following code, which unfortunately results in "XML is not well defined" while testing. Unfortunately I cannot find the problem. So I hope someone of you can have a look an will have an idea.
Created on 20.12.2007
@author Sebastian Geissler
import java.io.FileInputStream;
import java.io.FileOutputStream;
import com.sap.aii.mapping.api.*;
import java.io.*;
import java.util.Map; import javax.xml.parsers.*;
import org.xml.sax.; import org.xml.sax.helpers.;
public class SETtoITEMjavaSAX extends DefaultHandler implements StreamTransformation
     private Map map;
     private OutputStream out;
     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("<ns0:mt_MappingIn xmlns:ns0=\"urn:agrp:xi:geissseb\"><TABLE>");
     public void endDocument () throws SAXException
          write("</TABLE></ns0:mt_MappingIn>");
          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("set"))
               write("<item>");
          if(eName.substring(0,6).equals("set_E"))
               write("<item_FIELD"eName.substring(10,13)">");
     public void endElement (String namespaceURI, String sName, String qName) throws SAXException
          String eName = sName;
          if ("".equals(eName))
               eName = qName;
          if(eName.equals("set"))
               write("</item>");
          if(eName.substring(0,6).equals("set_E"))
               write("</item_FIELD"eName.substring(10,13)">");
     public void characters (char buf[], int offset, int len)
     throws SAXException {
          String s = new String(buf, offset, len);
          write (s);
Thank you,
Sebastian

Answer 1

Hi  Ravi, hi Raman,
thanks so far... I did some changes in my code, but I am still having the same problem... down there you will find my new code and the source message.
there is my new code:
private Map map;
     private OutputStream out;
     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("<ns0:mt_mappingOUT xmlns:ns0=\"urn:agrp:xi:geissseb\"><TABLE>");
     public void endDocument () throws SAXException {
          write("</TABLE></ns0:mt_mappingOUT>");
          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("mtset"))
               write("<item>");
          if(eName.substring(0,2).equals("se"))
               write("<Item_FIELD_"eName.substring(13,14)">");
     public void endElement (String namespaceURI, String sName, String qName) throws SAXException {
          String eName = sName;
          if ("".equals(eName))
               eName = qName;
          if(eName.equals("mtset"))
               write("</item>");
          if(eName.substring(0,2).equals("se"))
               write("</item_FIELD_"eName.substring(13,14)">");
     public void characters (char buf[], int offset, int len)
     throws SAXException {
          String s = new String(buf, offset, len);
          write (s);
and there is the source message:
<?xml version="1.0" encoding="ISO-8859-1"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="urn:agrp:xi:geissseb" targetNamespace="urn:agrp:xi:geissseb">
     <xsd:element name="mt_MappingOut" type="dt_MappingOut" />
     <xsd:complexType name="dt_MappingOut">
          <xsd:annotation>
               <xsd:appinfo source="http://sap.com/xi/TextID">
               4c79fbb0bde711dcae43001a4b0af224
               </xsd:appinfo>
          </xsd:annotation>
          <xsd:sequence>
               <xsd:element name="set">
                    <xsd:annotation>
                         <xsd:appinfo source="http://sap.com/xi/TextID">
                         0b366510aeda11dcb3bb00174205b856
                         </xsd:appinfo>
                    </xsd:annotation>
                    <xsd:complexType>
                         <xsd:sequence>
                              <xsd:element name="set_ELEMENT_01" type="xsd:string">
                                   <xsd:annotation>
                                        <xsd:appinfo source="http://sap.com/xi/TextID">
                                        0b366511aeda11dcaf2600174205b856
                                        </xsd:appinfo>
                                   </xsd:annotation>
                              </xsd:element>
                              <xsd:element name="set_ELEMENT_02" type="xsd:string">
                                   <xsd:annotation>
                                        <xsd:appinfo source="http://sap.com/xi/TextID">
                                        0b366512aeda11dc84d400174205b856
                                        </xsd:appinfo>
                                   </xsd:annotation>
                              </xsd:element>
                              <xsd:element name="set_ELEMENT_03" type="xsd:string">
                                   <xsd:annotation>
                                        <xsd:appinfo source="http://sap.com/xi/TextID">
                                        0b366513aeda11dcbcab00174205b856
                                        </xsd:appinfo>
                                   </xsd:annotation>
                              </xsd:element>
                              <xsd:element name="set_ELEMENT_04" type="xsd:string">
                                   <xsd:annotation>
                                        <xsd:appinfo source="http://sap.com/xi/TextID">
                                        0b366514aeda11dc96a300174205b856
                                        </xsd:appinfo>
                                   </xsd:annotation>
                              </xsd:element>
                              <xsd:element name="set_ELEMENT_05" type="xsd:string">
                                   <xsd:annotation>
                                        <xsd:appinfo source="http://sap.com/xi/TextID">
                                        0b366515aeda11dca77700174205b856
                                        </xsd:appinfo>
                                   </xsd:annotation>
                              </xsd:element>
                              <xsd:element name="set_ELEMENT_06" type="xsd:string">
                                   <xsd:annotation>
                                        <xsd:appinfo source="http://sap.com/xi/TextID">
                                        0b366516aeda11dc8f7d00174205b856
                                        </xsd:appinfo>
                                   </xsd:annotation>
                              </xsd:element>
                              <xsd:element name="set_ELEMENT_07" type="xsd:string">
                                   <xsd:annotation>
                                        <xsd:appinfo source="http://sap.com/xi/TextID">
                                        0b366517aeda11dcc24b00174205b856
                                        </xsd:appinfo>
                                   </xsd:annotation>
                              </xsd:element>
                              <xsd:element name="set_ELEMENT_08" type="xsd:string">
                                   <xsd:annotation>
                                        <xsd:appinfo source="http://sap.com/xi/TextID">
                                        0b366518aeda11dc92cd00174205b856
                                        </xsd:appinfo>
                                   </xsd:annotation>
                              </xsd:element>
                              <xsd:element name="set_ELEMENT_09" type="xsd:string">
                                   <xsd:annotation>
                                        <xsd:appinfo source="http://sap.com/xi/TextID">
                                        0b366519aeda11dcc9b100174205b856
                                        </xsd:appinfo>
                                   </xsd:annotation>
                              </xsd:element>
                              <xsd:element name="set_ELEMENT_10" type="xsd:string">
                                   <xsd:annotation>
                                        <xsd:appinfo source="http://sap.com/xi/TextID">
                                        0b36651aaeda11dcc5a700174205b856
                                        </xsd:appinfo>
                                   </xsd:annotation>
                              </xsd:element>
                         </xsd:sequence>
                    </xsd:complexType>
               </xsd:element>
          </xsd:sequence>
     </xsd:complexType>
</xsd:schema>
I really hope you can help me there..
Thanks in advance..
Sebastian