nu.staldal.lsp.framework
Class DispatcherServlet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          nu.staldal.lsp.framework.DispatcherServlet

All Implemented Interfaces:

java.io.Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

Direct Known Subclasses:

RestfulDispatcherServlet

public class DispatcherServlet
extends javax.servlet.http.HttpServlet

Dispatcher Servlet for LSP framework. Will be available in ServletContext under the key nu.staldal.lsp.framework.DispatcherServlet.

See Also:

Serialized Form

Constructor Summary

DispatcherServlet()

Method Summary

void	destroy()
java.lang.String	dispatchService(javax.servlet.http.HttpServletRequest request) Strip leading '/' and extension, apply defaultService.
void	doDelete(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
void	doGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
void	doPost(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
void	doPut(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
java.lang.String	executeService(java.lang.Object service, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, java.util.Map<java.lang.String,java.lang.Object> pageParams, int requestType) Execute a service
void	init()
java.lang.Object	lookupService(java.lang.String serviceName) Lookup a service.
protected boolean	useTemplateIfServiceIsNotFound()

Methods inherited from class javax.servlet.http.HttpServlet

doHead, doOptions, doTrace, getLastModified, service, service

Methods inherited from class javax.servlet.GenericServlet

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

Methods inherited from class java.lang.Object

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

Constructor Detail

DispatcherServlet

public DispatcherServlet()

Method Detail

init

public void init()
          throws javax.servlet.ServletException

Overrides:

init in class javax.servlet.GenericServlet

Throws:

javax.servlet.ServletException

doGet

public void doGet(javax.servlet.http.HttpServletRequest request,
                  javax.servlet.http.HttpServletResponse response)
           throws javax.servlet.ServletException,
                  java.io.IOException

Overrides:

doGet in class javax.servlet.http.HttpServlet

Throws:

javax.servlet.ServletException

java.io.IOException

doPost

public void doPost(javax.servlet.http.HttpServletRequest request,
                   javax.servlet.http.HttpServletResponse response)
            throws javax.servlet.ServletException,
                   java.io.IOException

Overrides:

doPost in class javax.servlet.http.HttpServlet

Throws:

javax.servlet.ServletException

java.io.IOException

doPut

public void doPut(javax.servlet.http.HttpServletRequest request,
                  javax.servlet.http.HttpServletResponse response)
           throws javax.servlet.ServletException,
                  java.io.IOException

Overrides:

doPut in class javax.servlet.http.HttpServlet

Throws:

javax.servlet.ServletException

java.io.IOException

doDelete

public void doDelete(javax.servlet.http.HttpServletRequest request,
                     javax.servlet.http.HttpServletResponse response)
              throws javax.servlet.ServletException,
                     java.io.IOException

Overrides:

doDelete in class javax.servlet.http.HttpServlet

Throws:

javax.servlet.ServletException

java.io.IOException

useTemplateIfServiceIsNotFound

protected boolean useTemplateIfServiceIsNotFound()

executeService

public java.lang.String executeService(java.lang.Object service,
                                       javax.servlet.http.HttpServletRequest request,
                                       javax.servlet.http.HttpServletResponse response,
                                       java.util.Map<java.lang.String,java.lang.Object> pageParams,
                                       int requestType)
                                throws javax.servlet.ServletException,
                                       java.io.IOException

Execute a service

Parameters:

service - the Service

request - the HttpServletRequest

response - the HttpServletResponse

pageParams - page parameters

requestType - request type

Returns:

same as service

Throws:

javax.servlet.ServletException - if the service throws it

java.io.IOException - if the service throws it

destroy

public void destroy()

Specified by:

destroy in interface javax.servlet.Servlet

Overrides:

destroy in class javax.servlet.GenericServlet

dispatchService

public java.lang.String dispatchService(javax.servlet.http.HttpServletRequest request)

Strip leading '/' and extension, apply defaultService.

Parameters:

request - the HtthServletRequest

Returns:

never return null

lookupService

public java.lang.Object lookupService(java.lang.String serviceName)
                               throws java.lang.InstantiationException,
                                      java.lang.IllegalAccessException,
                                      javax.servlet.ServletException

Lookup a service.

Parameters:

serviceName - service name

Returns:

null if not found

Throws:

java.lang.InstantiationException - if the service cannot be instantiated

java.lang.IllegalAccessException - if the service cannot be instantiated

javax.servlet.ServletException - if the service fails to initialize