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Pulling Jim Ma latest changes to support latest jaxrs api
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102 changes: 36 additions & 66 deletions
102
...easy-jaxrs/src/main/java/org/jboss/resteasy/plugins/providers/sse/SseBroadcasterImpl.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,96 +1,66 @@ | ||
| package org.jboss.resteasy.plugins.providers.sse; | ||
|
|
||
| import java.util.Map; | ||
| import java.util.Set; | ||
| import java.util.concurrent.ConcurrentHashMap; | ||
| import java.util.concurrent.CopyOnWriteArraySet; | ||
| import java.util.List; | ||
| import java.util.concurrent.CompletableFuture; | ||
| import java.util.concurrent.CompletionStage; | ||
| import java.util.concurrent.ConcurrentLinkedQueue; | ||
| import java.util.concurrent.CopyOnWriteArrayList; | ||
| import java.util.function.BiConsumer; | ||
| import java.util.function.Consumer; | ||
|
|
||
| import javax.ws.rs.Flow.Subscriber; | ||
| import javax.ws.rs.Flow.Subscription; | ||
| import javax.ws.rs.sse.OutboundSseEvent; | ||
| import javax.ws.rs.sse.SseBroadcaster; | ||
| import javax.ws.rs.sse.SseEventSink; | ||
|
|
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| public class SseBroadcasterImpl implements SseBroadcaster | ||
| { | ||
| private final Map<Subscriber<? super OutboundSseEvent>, Subscription> subscribers = new ConcurrentHashMap<>(); | ||
| private final Set<Consumer<Subscriber<? super OutboundSseEvent>>> onCloseConsumers = new CopyOnWriteArraySet<>(); | ||
| private final Set<BiConsumer<Subscriber<? super OutboundSseEvent>, Exception>> onExceptionConsumers = new CopyOnWriteArraySet<>(); | ||
| private ConcurrentLinkedQueue<SseEventSink> outputQueue = new ConcurrentLinkedQueue<SseEventSink>(); | ||
| private final List<BiConsumer<SseEventSink, Throwable>> onErrorConsumers = new CopyOnWriteArrayList<>(); | ||
| private final List<Consumer<SseEventSink>> closeConsumers = new CopyOnWriteArrayList<>(); | ||
|
|
||
| @Override | ||
| public void broadcast(OutboundSseEvent event) | ||
| { | ||
| for (final Subscriber<? super OutboundSseEvent> subscriber : subscribers.keySet()) | ||
| { | ||
| try | ||
| { | ||
| subscriber.onNext(event); | ||
| } | ||
| catch (final Exception ex) | ||
| { | ||
| subscriber.onError(ex); //TODO is this required? | ||
| onExceptionConsumers.forEach(exceptioner -> exceptioner.accept(subscriber, ex)); | ||
| } | ||
| } | ||
| public SseBroadcasterImpl () { | ||
|
|
||
| } | ||
|
|
||
| @Override | ||
| public void close() | ||
| { | ||
| for (final Subscriber<? super OutboundSseEvent> output : subscribers.keySet()) | ||
| { | ||
| try | ||
| { | ||
| output.onComplete(); | ||
| for (Consumer<Subscriber<? super OutboundSseEvent>> consumer : onCloseConsumers) | ||
| { | ||
| consumer.accept(output); | ||
| } | ||
| } | ||
| catch (final Exception ex) | ||
| { | ||
| output.onError(ex); //TODO is this required? | ||
| onCloseConsumers.forEach(occ -> occ.accept(output)); | ||
| } | ||
| } | ||
| outputQueue.forEach(evenSink -> {closeConsumers.forEach(consumer-> {consumer.accept(evenSink);});}); | ||
| outputQueue.clear(); | ||
| } | ||
|
|
||
| @Override | ||
| public void onException(BiConsumer<Subscriber<? super OutboundSseEvent>, Exception> onException) | ||
| public void onError(BiConsumer<SseEventSink, Throwable> onError) | ||
| { | ||
| onExceptionConsumers.add(onException); | ||
| onErrorConsumers.add(onError); | ||
| } | ||
|
|
||
| @Override | ||
| public void onClose(Consumer<Subscriber<? super OutboundSseEvent>> onClose) | ||
| { | ||
| onCloseConsumers.add(onClose); | ||
| public void onClose(Consumer<SseEventSink> onClose) | ||
| { | ||
| closeConsumers.add(onClose); | ||
| } | ||
|
|
||
| @Override | ||
| public void subscribe(Subscriber<? super OutboundSseEvent> subscriber) | ||
| public void register(SseEventSink sseEventSink) | ||
| { | ||
| final Subscription subscription = new Subscription() | ||
| { | ||
| public void request(long n) | ||
| { | ||
| } | ||
| outputQueue.add(sseEventSink); | ||
|
|
||
| } | ||
|
|
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| @Override | ||
| public void cancel() | ||
| { | ||
| } | ||
| @Override | ||
| public CompletionStage<?> broadcast(OutboundSseEvent event) | ||
| { | ||
| outputQueue.forEach(eventSink -> {SseEventOutputImpl outputImpl=(SseEventOutputImpl)eventSink; outputImpl.send(event, callAllErrConsumers());}); | ||
| //return event immediately and doesn't block anything | ||
| return CompletableFuture.supplyAsync(() -> { return event;}); | ||
| } | ||
|
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| BiConsumer<SseEventSink, Throwable> callAllErrConsumers() { | ||
| return (eventSink, err) -> { | ||
| onErrorConsumers.forEach(consumer -> {consumer.accept(eventSink, err);}); | ||
| }; | ||
|
|
||
| try | ||
| { | ||
| subscriber.onSubscribe(subscription); | ||
| subscribers.put(subscriber, subscription); | ||
| } | ||
| catch (final Exception ex) | ||
| { | ||
| subscriber.onError(ex); | ||
| } | ||
|
|
||
| } | ||
|
|
||
| } |
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