org.eclipse.jetty.reactive.client.internal

Class ResponseListenerProcessor<T>

java.lang.Object

org.eclipse.jetty.reactive.client.internal.AbstractSinglePublisher<O>

org.eclipse.jetty.reactive.client.internal.AbstractSingleProcessor<T,T>

org.eclipse.jetty.reactive.client.internal.ResponseListenerProcessor<T>

All Implemented Interfaces:

EventListener, org.eclipse.jetty.client.api.Response.AsyncContentListener, org.eclipse.jetty.client.api.Response.BeginListener, org.eclipse.jetty.client.api.Response.CompleteListener, org.eclipse.jetty.client.api.Response.ContentListener, org.eclipse.jetty.client.api.Response.DemandedContentListener, org.eclipse.jetty.client.api.Response.FailureListener, org.eclipse.jetty.client.api.Response.HeaderListener, org.eclipse.jetty.client.api.Response.HeadersListener, org.eclipse.jetty.client.api.Response.Listener, org.eclipse.jetty.client.api.Response.ResponseListener, org.eclipse.jetty.client.api.Response.SuccessListener, org.reactivestreams.Processor<T,T>, org.reactivestreams.Publisher<T>, org.reactivestreams.Subscriber<T>, org.reactivestreams.Subscription

public class ResponseListenerProcessor<T>
extends AbstractSingleProcessor<T,T>
implements org.eclipse.jetty.client.api.Response.Listener

A Processor that listens for response events.

When this Processor is demanded data, it first sends the request and produces no data. When the response arrives, the application is invoked with a Publisher that produces response content chunks.

The application processes the response content chunks into some other data structure (for example, splits them further, or coalesce them into a single chunk) and returns the application Processor to this implementation, which then builds this chain:

 HTTP response content chunks Publisher - (produces ContentChunks)
   Application Processor                - (processes ContentChunks and produces Ts)
     ResponseListenerProcessor          - (forwards Ts to application)
       Application Subscriber           - (consumes Ts)
 

Data flows from top to bottom, demand from bottom to top.

ResponseListenerProcessor acts as a "hot" publisher: it is returned to the application before the response content arrives so that the application can subscribe to it.

Any further data demand to this Processor is forwarded to the Application Processor, which in turn demands response content chunks. Response content chunks arrive to the Application Processor, which processes them and produces data that is forwarded to this Processor, which forwards it to the Application Subscriber.

Nested Class Summary

Nested classes/interfaces inherited from interface org.eclipse.jetty.client.api.Response.Listener

org.eclipse.jetty.client.api.Response.Listener.Adapter

Constructor Summary

Constructors

Constructor and Description
ResponseListenerProcessor(ReactiveRequest request, BiFunction<ReactiveResponse,org.reactivestreams.Publisher<ContentChunk>,org.reactivestreams.Publisher<T>> contentFn, boolean abortOnCancel)

Method Summary

Modifier and Type	Method and Description
void	cancel()
void	onBeforeContent(org.eclipse.jetty.client.api.Response response, LongConsumer demand)
void	onBegin(org.eclipse.jetty.client.api.Response response)
void	onComplete(org.eclipse.jetty.client.api.Result result)
void	onContent(org.eclipse.jetty.client.api.Response response, ByteBuffer content)
void	onContent(org.eclipse.jetty.client.api.Response response, ByteBuffer buffer, org.eclipse.jetty.util.Callback callback)
void	onContent(org.eclipse.jetty.client.api.Response response, LongConsumer demand, ByteBuffer buffer, org.eclipse.jetty.util.Callback callback)
void	onFailure(org.eclipse.jetty.client.api.Response response, Throwable failure)
boolean	onHeader(org.eclipse.jetty.client.api.Response response, org.eclipse.jetty.http.HttpField field)
void	onHeaders(org.eclipse.jetty.client.api.Response response)
void	onNext(T t)
protected void	onRequest(org.reactivestreams.Subscriber<? super T> subscriber, long n)
void	onSuccess(org.eclipse.jetty.client.api.Response response)
String	toString()

Methods inherited from class org.eclipse.jetty.reactive.client.internal.AbstractSingleProcessor

downStream, downStreamOnNext, onComplete, onError, onFailure, onSubscribe, upStream, upStreamRequest

Methods inherited from class org.eclipse.jetty.reactive.client.internal.AbstractSinglePublisher

isCancelled, request, subscribe, subscriber

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.reactivestreams.Publisher

subscribe

Constructor Detail

ResponseListenerProcessor

public ResponseListenerProcessor(ReactiveRequest request,
                                 BiFunction<ReactiveResponse,org.reactivestreams.Publisher<ContentChunk>,org.reactivestreams.Publisher<T>> contentFn,
                                 boolean abortOnCancel)

Method Detail

onBegin

public void onBegin(org.eclipse.jetty.client.api.Response response)

Specified by:

onBegin in interface org.eclipse.jetty.client.api.Response.BeginListener

Specified by:

onBegin in interface org.eclipse.jetty.client.api.Response.Listener

onHeader

public boolean onHeader(org.eclipse.jetty.client.api.Response response,
                        org.eclipse.jetty.http.HttpField field)

Specified by:

onHeader in interface org.eclipse.jetty.client.api.Response.HeaderListener

Specified by:

onHeader in interface org.eclipse.jetty.client.api.Response.Listener

onHeaders

public void onHeaders(org.eclipse.jetty.client.api.Response response)

Specified by:

onHeaders in interface org.eclipse.jetty.client.api.Response.HeadersListener

Specified by:

onHeaders in interface org.eclipse.jetty.client.api.Response.Listener

onBeforeContent

public void onBeforeContent(org.eclipse.jetty.client.api.Response response,
                            LongConsumer demand)

Specified by:

onBeforeContent in interface org.eclipse.jetty.client.api.Response.DemandedContentListener

onContent

public void onContent(org.eclipse.jetty.client.api.Response response,
                      ByteBuffer content)

Specified by:

onContent in interface org.eclipse.jetty.client.api.Response.ContentListener

Specified by:

onContent in interface org.eclipse.jetty.client.api.Response.Listener

onContent

public void onContent(org.eclipse.jetty.client.api.Response response,
                      ByteBuffer buffer,
                      org.eclipse.jetty.util.Callback callback)

Specified by:

onContent in interface org.eclipse.jetty.client.api.Response.AsyncContentListener

Specified by:

onContent in interface org.eclipse.jetty.client.api.Response.ContentListener

onContent

public void onContent(org.eclipse.jetty.client.api.Response response,
                      LongConsumer demand,
                      ByteBuffer buffer,
                      org.eclipse.jetty.util.Callback callback)

Specified by:

onContent in interface org.eclipse.jetty.client.api.Response.AsyncContentListener

Specified by:

onContent in interface org.eclipse.jetty.client.api.Response.DemandedContentListener

onSuccess

public void onSuccess(org.eclipse.jetty.client.api.Response response)

Specified by:

onSuccess in interface org.eclipse.jetty.client.api.Response.Listener

Specified by:

onSuccess in interface org.eclipse.jetty.client.api.Response.SuccessListener

onFailure

public void onFailure(org.eclipse.jetty.client.api.Response response,
                      Throwable failure)

Specified by:

onFailure in interface org.eclipse.jetty.client.api.Response.FailureListener

Specified by:

onFailure in interface org.eclipse.jetty.client.api.Response.Listener

onComplete

public void onComplete(org.eclipse.jetty.client.api.Result result)

Specified by:

onComplete in interface org.eclipse.jetty.client.api.Response.CompleteListener

Specified by:

onComplete in interface org.eclipse.jetty.client.api.Response.Listener

onRequest

protected void onRequest(org.reactivestreams.Subscriber<? super T> subscriber,
                         long n)

Overrides:

onRequest in class AbstractSingleProcessor<T,T>

onNext

public void onNext(T t)

Specified by:

onNext in interface org.reactivestreams.Subscriber<T>

cancel

public void cancel()

Specified by:

cancel in interface org.reactivestreams.Subscription

Overrides:

cancel in class AbstractSingleProcessor<T,T>

toString

public String toString()

Overrides:

toString in class AbstractSingleProcessor<T,T>