Package io.helidon.webserver

Class ReadableByteChannelPublisher

java.lang.Object

io.helidon.webserver.ReadableByteChannelPublisher

All Implemented Interfaces:

Flow.Publisher<DataChunk>

public class ReadableByteChannelPublisher
extends java.lang.Object
implements Flow.Publisher<DataChunk>

Publish a channel content to a single subscriber. If channel doesn't offer data, then it is requested again after some period defined be retry schema.

Only first subscriber is accepted.

Constructor Summary

Constructors

Constructor and Description
ReadableByteChannelPublisher(java.nio.channels.ReadableByteChannel channel, RetrySchema retrySchema) Creates new instance.

Method Summary

Modifier and Type	Method and Description
void	subscribe(Flow.Subscriber<? super DataChunk> subscriberParam) Adds the given Subscriber if possible.

Methods inherited from class java.lang.Object

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

Constructor Detail

ReadableByteChannelPublisher

public ReadableByteChannelPublisher(java.nio.channels.ReadableByteChannel channel,
                                    RetrySchema retrySchema)

Creates new instance.

Parameters:

channel - a channel to read and publish

retrySchema - a retry schema functional interface used in case, that channel read retrieved zero bytes.

Method Detail

subscribe

public void subscribe(Flow.Subscriber<? super DataChunk> subscriberParam)

Description copied from interface: Flow.Publisher

Adds the given Subscriber if possible. If already subscribed, or the attempt to subscribe fails due to policy violations or errors, the Subscriber's onError method is invoked with an IllegalStateException. Otherwise, the Subscriber's onSubscribe method is invoked with a new Flow.Subscription. Subscribers may enable receiving items by invoking the request method of this Subscription, and may unsubscribe by invoking its cancel method.

Specified by:

subscribe in interface Flow.Publisher<DataChunk>

Parameters:

subscriberParam - the subscriber