com.esri.gpt.control.cart
Class CartServlet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          com.esri.gpt.framework.context.BaseServlet
              com.esri.gpt.control.cart.CartServlet

All Implemented Interfaces:

Serializable, Servlet, ServletConfig

public class CartServlet
extends BaseServlet

Servlet end-point for a simple implementation of an item cart based upon an in-memory (i.e. session) collection of ids.

See Also:

Serialized Form

Constructor Summary

CartServlet()

Method Summary

protected void	execute(HttpServletRequest request, HttpServletResponse response, RequestContext context) Processes the HTTP request.
protected String	generateJsonError(HttpServletRequest request, HttpServletResponse response, RequestContext context, MessageBroker msgBroker, Throwable t) Generates a JSON based error object.
protected String	generateJsonInfo(HttpServletRequest request, HttpServletResponse response, RequestContext context, MessageBroker msgBroker, Cart cart, int maxItems, String warning, boolean includeKeys) Generates a JSON based summary object for the cart.

Methods inherited from class com.esri.gpt.framework.context.BaseServlet

authenticate, doGet, doPost, getCredentials, getLogger, getParameterValue, getRealm, readInputCharacters, writeCharacterResponse, writeHtmlResponse, writeXmlResponse

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, doHead, doOptions, doPut, doTrace, getLastModified, service, service

Methods inherited from class javax.servlet.GenericServlet

destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, init, log, log

Methods inherited from class java.lang.Object

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

Constructor Detail

CartServlet

public CartServlet()

Method Detail

execute

protected void execute(HttpServletRequest request,
                       HttpServletResponse response,
                       RequestContext context)
                throws Exception

Processes the HTTP request.

Specified by:

execute in class BaseServlet

Parameters:

request - the HTTP request

response - HTTP response

context - request context

Throws:

Exception - if an exception occurs

generateJsonError

protected String generateJsonError(HttpServletRequest request,
                                   HttpServletResponse response,
                                   RequestContext context,
                                   MessageBroker msgBroker,
                                   Throwable t)

Generates a JSON based error object.

Parameters:

request - the HTTP servlet request

response - the HTTP servlet response

context - the request context

msgBroker - the message broker

t - the exception

Returns:

the JSON string

generateJsonInfo

protected String generateJsonInfo(HttpServletRequest request,
                                  HttpServletResponse response,
                                  RequestContext context,
                                  MessageBroker msgBroker,
                                  Cart cart,
                                  int maxItems,
                                  String warning,
                                  boolean includeKeys)

Generates a JSON based summary object for the cart.

Parameters:

request - the HTTP servlet request

response - the HTTP servlet response

context - the request context

msgBroker - the message broker

cart - the cart

maxItems - the maximum number of items

warning - optional warning message

includeKeys - optionally include the keys

Returns:

the JSON string