import javax.xml.messaging.*;
import javax.xml.soap.*;
import javax.xml.transform.dom.DOMSource;
import javax.xml.parsers.*;
import javax.servlet.http.*;
import java.io.IOException;
import org.w3c.dom.Document;

public class SOAPServlet extends HttpServlet {
	private static final String providerURI =
    			"http://java.sun.com/xml/jaxm/provider";

    private ProviderConnectionFactory connectionFactory;

    public void init(ServletConfig servletConfig) throws ServletException {
		 Context ctx = new InitialContext();
         connectionFactory = (ProviderConnectionFactory)ctx.lookup(
                                                                     providerURI);

         }


	public void doGet(HttpServletRequest request,HttpServletResponse response )
		throws ServletException, IOException
	{
		try {

			// A request comes in to send a message. So we create a connection from the factory.
			// factories are used when we have an intermediate which caches and send messages on our behalf
			// much like JMS.
			SOAPConnection connection = connectionFactory.createConnection();

			// Create a message factory from the Connection to produce messages.
			MessageFactory mf = connection.createMessageFactory();
			// Create messgages from the message factory.
			Message message = mf.createMessage( );


			// Get the SOAPPart from the message.
			// Note the infrastructure takes care of creating the SOAPPart.
			// The user needs to get the SOAPPart and get the  SOAPEnvelope and populate it appropriately.
			SOAPPart soapPart = message.getSOAPPart( );
			// Get the SOAPEnvelope from the header container obtained above.
			SOAPEnvelope soapEnvelope = soapPart.getSOAPEnvelope( );

			// Create a SOAPHeader from the SOAPEnvelope
			SOAPHeader soapHeader = soapEnvelope.createSOAPHeader() ;

			// Create a SOAPHeaderElement that will be appended to the  SOAPHeader.
			SOAPHeaderElement she = soapHeader.createSOAPHeaderElement( );
			she.setName("from", "http://foo.bar/", "m" );
			she.addContent("foo@bar.com" ;
			soapHeader.addContent(she);
			soapEnvelope.setSOAPHeader(soapHeader);

			// Add a DOMSource object as the actual message content

			DOMSource domsrc = null;
			try {
				DocumentBuilderFactory dbf =
				DocumentBuilderFactory.newInstance( );
				DocumentBuilder db = dbf.newDocumentBuilder( ;
				Document doc = db.parse("file:///foo.bar/soap.xml" );
				domsrc = new DOMSource(doc);
			} catch(Exception e ) {
				System.err.println("Error in creating DOMSource" +
				e.getMessage( );
			}

			soapEnvelope.setContent(domsrc);


			soapEnvelope.setSOAPBody(soapBody );
			URLEndpoint ep = new URLEndpoint("http://foo.bar/Service" );
			connection.send(message, endPoint );
			response.setStatus(HttpServletResponse.SC_OK );


		} catch(Exception jxe  {
			jxe.printStackTrace();
		}

	} // end doGet

}