org.gcube.smartgears.handlers.application

Class RequestHandler

java.lang.Object

org.gcube.smartgears.handlers.AbstractHandler

org.gcube.smartgears.handlers.application.RequestHandler

All Implemented Interfaces:

ApplicationHandler<RequestHandler>, Handler<ApplicationEvent<RequestHandler>>

Direct Known Subclasses:

RequestAccounting, RequestContextRetriever, RequestValidator

public abstract class RequestHandler
extends AbstractHandler
implements ApplicationHandler<RequestHandler>

A Handler of RequestEvents and ResponseEvents.

The handler participates in a ApplicationPipeline of other handlers registered for notification of the same events. After processing the event, it may or may not propagate the event to the handlers further down in the ApplicationPipeline ApplicationPipeline#forward(ApplicationEvent).

Author:

Fabio Simeoni

See Also:

RequestEvent, ResponseEvent, ApplicationPipeline

Constructor Summary

Constructors

Constructor and Description
RequestHandler()

Method Summary

Modifier and Type	Method and Description
abstract String	getName()
void	handleRequest(RequestEvent e) Invoked when the container receives a request for a servlet of a managed app.
void	handleResponse(ResponseEvent e) Invoked when a servlet of a managed app has produced a response to a request.
void	onEvent(ApplicationEvent<RequestHandler> e) Processes a given event.
void	start(ApplicationContext ctx) Initialises the handler.
void	stop() Terminates the handler.

Methods inherited from class org.gcube.smartgears.handlers.AbstractHandler

equals, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

RequestHandler

public RequestHandler()

Method Detail

getName

public abstract String getName()

start

public void start(ApplicationContext ctx)

Initialises the handler.

Parameters:

ctx - the servlet context of the managed app.

handleRequest

public void handleRequest(RequestEvent e)

Invoked when the container receives a request for a servlet of a managed app.

Parameters:

pipeline - the pipeline in which this handler is registered

e - the event

handleResponse

public void handleResponse(ResponseEvent e)

Invoked when a servlet of a managed app has produced a response to a request.

Parameters:

pipeline - the pipeline in which this handler is registered

e - the event

onEvent

public void onEvent(ApplicationEvent<RequestHandler> e)

Description copied from interface: Handler

Processes a given event.

Specified by:

onEvent in interface Handler<ApplicationEvent<RequestHandler>>

stop

public void stop()

Terminates the handler.