remulakservlet.java

《Developing Applications with Java and UML》一书的源代码。

        String custId = request.getParameter("customerId");
        Integer customerId = new Integer(custId);

        CustomerValue custVal = new CustomerValue();
        custVal.setCustomerId(customerId);
        custVal.setCustomerNumber(request.getParameter("customerNumber"));

        AddressValue addrVal = new AddressValue();
        RoleValue roleVal = new RoleValue();

        // set an empty addrVal object into the Servlet Context
        // so JSP's can see it
        request.setAttribute("addrVal", addrVal);
        request.setAttribute("custVal", custVal);
        request.setAttribute("roleVal", roleVal);

        // Forward to the JSP page used to actually display the page
        forward("rltnAddress.jsp", request, response);

    }
    /**
     * This operation represents the setup to add pathway through
     * the Maintain Relationships Use Case
     */
     private void doRltnAddressDelete(HttpServletRequest request,
        HttpServletResponse response)
        throws IOException, ServletException {

        logIt("RemulakServlet: doRltnAddressDelete");

        Integer addressId = new Integer(request.getParameter("addressId"));
        Integer roleId = new Integer(request.getParameter("roleId"));

        UCMaintainRltnshp UCController = new UCMaintainRltnshp();

        // call to controller method in session bean
        UCController.rltnDeleteAddress(addressId, roleId);

        //Requery
        CustomerValue custVal = UCController.rltnCustomerInquiry(request.getParameter("customerNumber"));

        // remove the UCMaintainRltnshp Controller
        logIt("Removing the Controller");
        UCController = null;

        // set custVal object into the Servlet Context
        // so JSP's can see it
        request.setAttribute("custVal", custVal);

        // Forward to the JSP page used to actually display the newly added
        // Customer using a different JSP file
        forward("rltnInquiry.jsp", request, response);
    }
    /**
     * This operation represents the setup to add pathway through
     * the Maintain Relationships Use Case
     */
     private void doRltnAddressEdit(HttpServletRequest request,
        HttpServletResponse response)
        throws IOException, ServletException {

        logIt("RemulakServlet: doRltnAddressEdit");

        UCMaintainRltnshp UCController = new UCMaintainRltnshp();

        Integer addressId = new Integer(request.getParameter("addressId"));

        logIt("RemulakServlet: after fetch for addressId");

        // call to controller method in session bean
        AddressValue addrVal = UCController.rltnAddressInquiry(addressId);

        Integer roleId = new Integer(request.getParameter("roleId"));

        // call to controller method in session bean
        RoleValue roleVal = UCController.rltnRoleInquiry(roleId);

        logIt("RemulakServlet: address line 1 " + addrVal.getAddressLine1());
        logIt("RemulakServlet: customer line 1 " + roleVal.getRoleName());

        CustomerValue custVal = new CustomerValue();
        Integer customerId = new Integer(request.getParameter("customerId"));

        custVal.setCustomerId(customerId);
        custVal.setCustomerNumber(request.getParameter("customerNumber"));

        // set the value objects into the Servlet Context so JSP's can see it
        request.setAttribute("custVal", custVal);
        request.setAttribute("addrVal", addrVal);
        request.setAttribute("roleVal", roleVal);

        // remove the UCMaintainRltnshp Controller

        logIt("Removing the Controller");
        UCController = null;

        // Forward to the JSP page used to actually display the page
        forward("rltnAddress.jsp", request, response);

    }

    /**
     * This operation represents the setup to add address pathway through
     * the Maintain Relationships Use Case
     */
     private void doRltnAddressAdd(HttpServletRequest request,
        HttpServletResponse response)
        throws IOException, ServletException {

        logIt("RemulakServlet: doRltnAddressAdd");

       UCMaintainRltnshp UCController = new UCMaintainRltnshp();

        // Set the form values to an Address, Customer and Role Value objects
        CustomerValue custVal = setAddrCustValueFromForm(request);
        RoleValue roleVal = setAddrRoleValueFromForm(request);
        AddressValue addrVal = setAddressValueFromForm(request);

        logIt("RemulakServlet: after setaddressvalueform");

        // call to controller method in session bean to add or update the Address
        if (request.getParameter("addressId").length() == 0) {
            logIt("RemulakServlet: Were adding");
            UCController.rltnAddAddress(addrVal, custVal, roleVal); //Add
            }
        else {
            logIt("RemulakServlet: Were updating");
            logIt("addrid " + addrVal.getAddressId());
            UCController.rltnUpdateAddress(addrVal, custVal, roleVal); //Update

             }

        //Requery
        custVal = UCController.rltnCustomerInquiry(custVal.getCustomerNumber());

        // remove the UCMaintainRltnshp Controller
        logIt("Removing the Controller");
        UCController = null;

        // set custVal object into the Servlet Context
        // so JSP's can see it
        request.setAttribute("custVal", custVal);

        // Forward to the JSP page used to actually display the newly added
        // Customer using a different JSP file
        forward("rltnInquiry.jsp", request, response);
    }

    /**
     * Forwards the request to the specified relative URL.
     */
    private void forward(String url, HttpServletRequest request,
        HttpServletResponse response)
        throws IOException, ServletException {
        RequestDispatcher rd = request.getRequestDispatcher(url);
        rd.forward(request, response);
    }

    /**
     * sets parms from form into CustomerValue object
     */
    private CustomerValue setCustomerValueFromForm(HttpServletRequest request)
        throws IOException, ServletException {

          logIt("RemulakServlet: setCustomerValueFromForm ");

          CustomerValue custVal = new CustomerValue();

          if (request.getParameter("customerId").length() > 0) {
             logIt("RemulakServlet: My Length is " + request.getParameter("customerId").length());
             logIt("RemulakServlet: My Value is " + request.getParameter("customerId"));
             logIt("RemulakServlet: I Already Exist ");
             Integer myCustId = new Integer(request.getParameter("customerId"));
             custVal.setCustomerId(myCustId);
          }
          custVal.setCustomerNumber(request.getParameter("customerNumber"));
          custVal.setPrefix(request.getParameter("prefix"));
          custVal.setFirstName(request.getParameter("firstName"));
          custVal.setMiddleInitial(request.getParameter("middleInitial"));
          custVal.setLastName(request.getParameter("lastName"));
          custVal.setSuffix(request.getParameter("suffix"));
          custVal.setPhone1(request.getParameter("phone1"));
          custVal.setPhone2(request.getParameter("phone2"));
          custVal.setEMail(request.getParameter("eMail"));

          return custVal;
    }
    /**
     * sets parms from form into AddressValue object
    */
    private AddressValue setAddressValueFromForm(HttpServletRequest request)
        throws IOException, ServletException {

          logIt("RemulakServlet: setAddressValueFromForm ");

          AddressValue addrVal = new AddressValue();

          if (request.getParameter("addressId").length() > 0) {

            Integer addressId = new Integer(request.getParameter("addressId"));
            logIt("RemulakServlet: address id " + addressId);
            addrVal.setAddressId(addressId);
          }
          logIt("RemulakServlet: no address ");
          addrVal.setAddressLine1(request.getParameter("addressLine1"));
          addrVal.setAddressLine2(request.getParameter("addressLine2"));
          addrVal.setAddressLine3(request.getParameter("addressLine3"));
          addrVal.setCity(request.getParameter("city"));
          addrVal.setState(request.getParameter("state"));
          addrVal.setZip(request.getParameter("zip"));
          logIt("RemulakServlet: after address sets ");

          return addrVal;
    }
    /**
     * sets parms from form into CustomerValue for address add/update
    */
    private CustomerValue setAddrCustValueFromForm(HttpServletRequest request)
        throws IOException, ServletException {

          logIt("RemulakServlet: setAddrCustValueFromForm ");

          CustomerValue custVal = new CustomerValue();

          Integer customerId = new Integer(request.getParameter("customerId"));
          custVal.setCustomerId(customerId);
          custVal.setCustomerNumber(request.getParameter("customerNumber"));

          return custVal;
    }
    /**
     * sets parms from form into RoleValue object
    */
    private RoleValue setAddrRoleValueFromForm(HttpServletRequest request)
        throws IOException, ServletException {

          logIt("RemulakServlet: setAddrRoleValueFromForm ");

          RoleValue roleVal = new RoleValue();

          if (request.getParameter("addressId").length() > 0) {
            Integer roleId = new Integer(request.getParameter("roleId"));
            roleVal.setRoleId(roleId);
          }
          logIt("RemulakServlet: no address ");

          roleVal.setRoleName(request.getParameter("roleName"));

          return roleVal;
    }

    private static void logIt(String s) {
    System.out.println(s);
    }

}