XML document - request string

Question

Hi Experts,
Could you please tell me, how to pass XML document as a request string to the webservice scenario. Inside the service, I have to do the schema validation for the request . Please guide me, how to proceed further?
Regards
Sara

Answer 1

Hi SARA,
use following Code written in SAX parsing .this will fulfil your requirment.This handle Special character also.
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.xml.parsers.FactoryConfigurationError;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.Attributes;
import org.xml.sax.helpers.DefaultHandler;
import org.xml.sax.SAXException;
import com.sap.aii.mapping.api.StreamTransformation;
import com.sap.aii.mapping.api.StreamTransformationException;
public class SimpleForwardMappingString extends DefaultHandler implements StreamTransformation
     private List m_arlCurrent = new ArrayList();
     private List m_arlBOList = new ArrayList();
     private List m_arlObjectList = new ArrayList();
    public static int counter = 0;
     String listName = "newList";
     public  StringBuffer m_totalElementsBuffer = new StringBuffer();
     String startData = "<inCanonStream>";
     String endData = "</inCanonStream>";
     private Map param = null;
     /** Constant Strings used in Forward Mapping */
     public static void main(String args[])
          try {
                  InputStream in = new FileInputStream(new File("C:
Documents and Settings
281152
Desktop
Cannonical12321.xml"));
               OutputStream out = new FileOutputStream(new File("C:
Documents and Settings
281152
Desktop
Cannonical21.xmlOut.xml"));               
               SimpleForwardMappingString myMapping = new SimpleForwardMappingString();
          catch (Exception e)
               e.printStackTrace();
     public void execute(InputStream arg0, OutputStream arg1)
     throws StreamTransformationException
          Writer out;
          try
               out = new OutputStreamWriter(arg1, "UTF16");
               /** Building the SAX parser */
               getXMLDoc(arg0, arg1);
               arg1.write(m_totalElementsBuffer.toString().getBytes("UTF16"));
          catch (IOException e)
               System.out.println("Error : io" + e.getMessage());
          catch (Exception e)
               System.out.println("Error :" + e.getMessage());
     /* (non-Javadoc)
@see com.sap.aii.mapping.api.StreamTransformation#setParameter(java.util.Map)
     public void setParameter(Map arg0)
     public void getXMLDoc(InputStream inputStream, OutputStream outputStream)
Defines a factory API that enables applications to configure and
obtain a SAX based parser to parse XML documents. Once an application
has obtained a reference to a SAXParserFactory it can use the
factory to configure and obtain parser instances.
          SAXParserFactory factory = SAXParserFactory.newInstance();
          try
               factory.setNamespaceAware(true);
               factory.setValidating(true);
               SAXParser saxParser = factory.newSAXParser();
Parse the content of the given {@link java.io.InputStream}
instance as XML using the specified
{@link org.xml.sax.helpers.DefaultHandler}.
@param inputstream InputStream containing the content to be parsed.
@param cobject The SAX DefaultHandler to use.
@exception IOException If any IO errors occur.
@exception IllegalArgumentException If the given InputStream is null.
@exception SAXException If the underlying parser throws a
SAXException while parsing.               
               saxParser.parse(inputStream, this);
          catch (FactoryConfigurationError e)
               System.out.println("Error");
          catch (ParserConfigurationException e)
               e.printStackTrace();
          catch (SAXException e)
               e.printStackTrace();
          catch (IOException e)
               e.printStackTrace();
     /** ===========================================================
                         Methods Overriding in SAX Default Handler
          ===========================================================
Receive notification of the beginning of the document.
By overriding this method in a subclass to take specific actions
at the beginning of a document (such as allocating the root node
of a tree or creating an output file)     
     public void startDocument()throws SAXException
          if(m_totalElementsBuffer.length()>0)
                            m_totalElementsBuffer = new StringBuffer();
                            counter = 0;
          m_totalElementsBuffer.append(m_prologue);
          m_totalElementsBuffer.append(m_nameSpace);
          m_totalElementsBuffer.append(startData);     }
Receive notification of the end of the document.
By overriding this method in a subclass to take specific
actions at the end of a document (such as finalising a tree
or closing an output file)     
     public void endDocument()throws SAXException
          m_totalElementsBuffer.append(endData);
          m_totalElementsBuffer.append(m_rootElementEnd);
Receive notification of the start of an element.
By overriding this method in a subclass to take specific
actions at the start of each element (such as allocating
a new tree node or writing output to a file)
     public void startElement(String namespaceURI, String name, String qName, Attributes attrs)
          throws SAXException
          /** If current List is not empty then append node to StringBuffer */
               m_totalElementsBuffer.append("&lt;" + name + "&gt;");
Receive notification of the end of an element.
By overriding this method in a subclass to take specific
actions at the end of each element (such as finalising
a tree node or writing output to a file)
     public void endElement(String uri, String name, String qName) throws SAXException
               m_totalElementsBuffer.append("&lt;/" + name + "&gt;");
Receive notification of character data inside an element.
By overriding this method to take specific actions for each
chunk of character data (such as adding the data to a node
or buffer, or printing it to a file)     
     public void characters(char buf[], int offset, int len)
          throws SAXException
          String s = new String(buf, offset, len);
          if (null != s && s.length() >0)
               if(s.equalsIgnoreCase("&"))
                     //System.out.println("FOUND AND SYMBOL");
                     String s1 = s.replaceAll("&","_-#_");
                     //System.out.println("s= " +s1);
                     s = s1;
               if(s.equalsIgnoreCase("<"))
                     //System.out.println("FOUND AND SYMBOL");
                     String s1 = s.replaceAll("<","_#-_");
                     //System.out.println("s= " +s1);
                     s = s1;
               m_totalElementsBuffer.append(s);
Thanks
Sunil Singh