ex6_49.txt

j2ee core design patterns

Example 6.49 SOAP Message Handling Strategy
public class FrontController extends HttpServlet {
  protected void processRequest(
      HttpServletRequest request, HttpServletResponse response)
          throws ServletException, java.io.IOException {

    // Create ApplicationController for handling incoming request
    ApplicationControllerFactory ACFactory =
        ApplicationControllerFactory.getInstance();
    ApplicationController applicationController = 
        ACFactory.getApplicationController(request);
    applicationController.init();

    // Create ContextObject to encapsulate protocol-specific 
    //request state
    RequestContextFactory requestContextFactory =
        RequestContextFactory.getInstance();
    RequestContext requestContext =
        requestContextFactory.getRequestContext(request);

    // Action Management - Locate & Invoke Actions to handle 
    //specific Requests
    ResponseContext responseContext;
    responseContext =
        applicationController.handleRequest(requestContext);
    responseContext.setResponse(response);

    // View Management - Navigate and Dispatch to appropriate View
    applicationController.handleResponse(
        requestContext, responseContext);
    applicationController.destroy();
  }
  . . .
}