com.amazon.ask.dispatcher.impl

Class DefaultRequestDispatcher

java.lang.Object

com.amazon.ask.dispatcher.impl.DefaultRequestDispatcher

All Implemented Interfaces:

RequestDispatcher

public class DefaultRequestDispatcher
extends Object
implements RequestDispatcher

Using a list of RequestMapper this class tries to find a handler for a request, then delegates the invocation to a HandlerAdapter that supports such a handler.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DefaultRequestDispatcher.Builder

Field Summary

Fields

Modifier and Type	Field and Description
protected ExceptionMapper	exceptionMapper
protected Collection<HandlerAdapter>	handlerAdapters
protected Collection<RequestInterceptor>	requestInterceptors
protected Collection<RequestMapper>	requestMappers
protected Collection<ResponseInterceptor>	responseInterceptors

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	DefaultRequestDispatcher(Collection<HandlerAdapter> handlerAdapters, Collection<RequestMapper> requestMappers, ExceptionMapper exceptionMapper)
protected	DefaultRequestDispatcher(Collection<HandlerAdapter> handlerAdapters, Collection<RequestMapper> requestMappers, ExceptionMapper exceptionMapper, Collection<RequestInterceptor> requestInterceptors, Collection<ResponseInterceptor> responseInterceptors)

Method Summary

Modifier and Type	Method and Description
static DefaultRequestDispatcher.Builder	builder()
Optional<com.amazon.ask.model.Response>	dispatch(HandlerInput input) Dispatches an incoming request to the appropriate request handler and returns the output

Methods inherited from class java.lang.Object

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

Field Detail

handlerAdapters

protected final Collection<HandlerAdapter> handlerAdapters

requestMappers

protected final Collection<RequestMapper> requestMappers

exceptionMapper

protected final ExceptionMapper exceptionMapper

requestInterceptors

protected final Collection<RequestInterceptor> requestInterceptors

responseInterceptors

protected final Collection<ResponseInterceptor> responseInterceptors

Constructor Detail

DefaultRequestDispatcher

protected DefaultRequestDispatcher(Collection<HandlerAdapter> handlerAdapters,
                                   Collection<RequestMapper> requestMappers,
                                   ExceptionMapper exceptionMapper)

DefaultRequestDispatcher

protected DefaultRequestDispatcher(Collection<HandlerAdapter> handlerAdapters,
                                   Collection<RequestMapper> requestMappers,
                                   ExceptionMapper exceptionMapper,
                                   Collection<RequestInterceptor> requestInterceptors,
                                   Collection<ResponseInterceptor> responseInterceptors)

Method Detail

dispatch

public Optional<com.amazon.ask.model.Response> dispatch(HandlerInput input)
                                                 throws AskSdkException

Description copied from interface: RequestDispatcher

Dispatches an incoming request to the appropriate request handler and returns the output

Specified by:

dispatch in interface RequestDispatcher

Parameters:

input - input to the dispatcher containing incoming request and other context

Returns:

output optionally containing a response

Throws:

AskSdkException - when an exception occurs during request processing

builder

public static DefaultRequestDispatcher.Builder builder()