Invoking an Integration Server Service from a Servlet

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.wm.data.*;
import com.wm.app.b2b.server.Service;

public class ServiceServlet extends HttpServlet {

// Allows you to have finer control over the logging levels
private static Log log = LogFactory.getLog( ServiceServlet.class );

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

PrintWriter out = response.getWriter();

ServletContext ctx = getServletContext();
// Will show on IS level 8
ctx.log("logging a string in the IS server log via the Servlet API");
log.info("Servlet logging at the IS level 4");
log.debug("Servlet logging at the IS level 8");

IDataCursor cursor = idata.getCursor();
String param1 = request.getParameter ("param1");
String param2 = request.getParameter ("param2");

// Pass the parameters to the pipeline
IDataUtil.put( cursor, "inString1", param1 );
IDataUtil.put( cursor, "inString2", param2 );

try{

idata = Service.doInvoke( "pub.string", "concat", idata );

}catch( Throwable t){
log.error("The service failed: " , t);
}
// Get the concatenated String returned by the Service
String value = (String)IDataUtil.get( cursor, "value" );
cursor.destroy();
out.println("<HTML>");
out.println("Invoked the IS service pub.string:concat ");
out.println("<UL>");
out.println("");
out.println("<LI>param1 = " + param1 + "</LI>");
out.println("");
out.println("<LI>param2 = " + param2 + "</LI>");
out.println("");
out.println("<LI>Service returned = " + value + "</LI>");
out.println("</UL>");
out.println("</html>");

}
}