IX JSP Tutorial II - API Reference: Class RequestProcessor

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de.ix.jspTutorial.controller
Class RequestProcessor

java.lang.Object
  |
  +--de.ix.jspTutorial.controller.RequestProcessor

public class RequestProcessor
extends java.lang.Object
implements RequestParameterConstants

This class processes all requests recived from the applications main entry point and generates all depending and necessary events

Version:: $Id:$
Author:: Peter Rossbach (pr@webapp.de), Lars Röwekamp ( lars.roewekamp@openKnowledge.de)

Field Summary

static java.lang.String vcid
          version of the source

Fields inherited from interface de.ix.jspTutorial.constants.RequestParameterConstants

CUS_ADDRESS1, CUS_ADDRESS2, CUS_EMAIL, CUS_FIRSTNAME, CUS_ID, CUS_LASTNAME, CUS_TOWN, CUS_ZIP, DO_ACTION, DO_CHOICE, DO_CHOICE_PARAMS, DO_LOGIN, DO_LOGIN_PARAMS, DO_LOGOUT, DO_ORDER, DO_ORDER_PARAMS, ERROR, INGREDIENT_IDS, MIP_ERROR, PIZZA_ID, REQUESTED_URL, SHOW_CHOICE, SHOW_LOGIN

Constructor Summary

RequestProcessor()


Method Summary

void checkParameters(java.lang.String action, javax.servlet.http.HttpServletRequest request)
          Method to check all given parameters depending on the current request type.

void handleChoiseEvent(javax.servlet.http.HttpServletRequest request)
          Handler-method for choice request.

void handleEvent(java.lang.String action, javax.servlet.http.HttpServletRequest request)
          Method to delegate the differnt request types to specialized handler-method.

void handleLoginEvent(javax.servlet.http.HttpServletRequest request)
          Handler-method for login request.

void handleLogoutEvent(javax.servlet.http.HttpServletRequest request)
          Handler-method for logout request.

void handleOrderEvent(javax.servlet.http.HttpServletRequest request)
          Handler-method for order request.

void init(javax.servlet.ServletContext servletContext, javax.servlet.http.HttpSession httpSession)
          This method initializes all private attributes of the the given RequestProcessor instance

void log(java.lang.String msg)
          Output of a message to the servlet log of the container.

void log(java.lang.String message, java.lang.Throwable throwable)
          Put the given message and exception the servlet log of the container.

void processRequest(javax.servlet.http.HttpServletRequest request)
          This method proceesses the actual http request.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

vcid

public static java.lang.String vcid

version of the source

Constructor Detail

RequestProcessor

public RequestProcessor()

Method Detail

init

public void init(javax.servlet.ServletContext servletContext,
                 javax.servlet.http.HttpSession httpSession)

This method initializes all private attributes of the the given RequestProcessor instance

Parameters:: servletContext - actual Servlet Context; httpSession - actual HTTP Session

processRequest

public void processRequest(javax.servlet.http.HttpServletRequest request)
                    throws de.ix.jspTutorial.exception.MissingInputParamsException

This method proceesses the actual http request. Doing this, it checks the given parameters of the current request and delegates this request to a request specific handler-method.

Parameters:: request - actual HttpServletRequest

handleLogoutEvent

public void handleLogoutEvent(javax.servlet.http.HttpServletRequest request)

Handler-method for logout request.

Parameters:: request - Current httpRequest

handleLoginEvent

public void handleLoginEvent(javax.servlet.http.HttpServletRequest request)

Handler-method for login request. Checks if the given customer exists and creates a new one if necessary.

Parameters:: request - Current httpRequest

handleChoiseEvent

public void handleChoiseEvent(javax.servlet.http.HttpServletRequest request)

Handler-method for choice request. Creates a PersonalPizza with the help of the current request.

Parameters:: request - Current httpRequest

handleOrderEvent

public void handleOrderEvent(javax.servlet.http.HttpServletRequest request)

Handler-method for order request. Saves the current order and changes also the current customer if necessary.

Parameters:: request - Current httpRequest

handleEvent

public void handleEvent(java.lang.String action,
                        javax.servlet.http.HttpServletRequest request)

Method to delegate the differnt request types to specialized handler-method.

Parameters:: action - Current request type; request - Current httpRequest

checkParameters

public void checkParameters(java.lang.String action,
                            javax.servlet.http.HttpServletRequest request)
                     throws de.ix.jspTutorial.exception.MissingInputParamsException

Method to check all given parameters depending on the current request type.

Parameters:: action - Current request type; request - Current httpRequest

log

public void log(java.lang.String msg)

Output of a message to the servlet log of the container.

Parameters:: msg - The message

log

public void log(java.lang.String message,
                java.lang.Throwable throwable)

Put the given message and exception the servlet log of the container.

Parameters:: message - Error message; throwable - Exception