Package org.springframework.web.reactive.socket.adapter

Class UndertowWebSocketSession

java.lang.Object

org.springframework.web.reactive.socket.adapter.AbstractWebSocketSession<T>

org.springframework.web.reactive.socket.adapter.AbstractListenerWebSocketSession<io.undertow.websockets.core.WebSocketChannel>

org.springframework.web.reactive.socket.adapter.UndertowWebSocketSession

All Implemented Interfaces:

Subscriber<Void>, WebSocketSession

public class UndertowWebSocketSession
extends AbstractListenerWebSocketSession<io.undertow.websockets.core.WebSocketChannel>

Spring WebSocketSession implementation that adapts to an Undertow WebSocketChannel.

Since:

5.0

Author:

Violeta Georgieva, Rossen Stoyanchev

Nested Class Summary

Nested classes/interfaces inherited from class org.springframework.web.reactive.socket.adapter.AbstractListenerWebSocketSession

AbstractListenerWebSocketSession.WebSocketSendProcessor

Field Summary

Fields inherited from class org.springframework.web.reactive.socket.adapter.AbstractWebSocketSession

logger

Constructor Summary

Constructors

Constructor	Description
UndertowWebSocketSession(io.undertow.websockets.core.WebSocketChannel channel, HandshakeInfo info, DataBufferFactory factory)
UndertowWebSocketSession(io.undertow.websockets.core.WebSocketChannel channel, HandshakeInfo info, DataBufferFactory factory, reactor.core.publisher.Sinks.Empty<Void> completionSink)

Method Summary

Modifier and Type	Method	Description
protected boolean	canSuspendReceiving()	Whether the underlying WebSocket API has flow control and can suspend and resume the receiving of messages.
reactor.core.publisher.Mono<Void>	close(CloseStatus status)	Close the WebSocket session with the given status.
boolean	isOpen()	Whether the underlying connection is open.
protected void	resumeReceiving()	Resume receiving new message(s) after demand is generated by the downstream Subscriber.
protected boolean	sendMessage(WebSocketMessage message)	Send the given WebSocket message.
protected void	suspendReceiving()	Suspend receiving until received message(s) are processed and more demand is generated by the downstream Subscriber.

Methods inherited from class org.springframework.web.reactive.socket.adapter.AbstractListenerWebSocketSession

closeStatus, getSendProcessor, onComplete, onError, onNext, onSubscribe, receive, send

Methods inherited from class org.springframework.web.reactive.socket.adapter.AbstractWebSocketSession

binaryMessage, bufferFactory, getAttributes, getDelegate, getHandshakeInfo, getId, getLogPrefix, pingMessage, pongMessage, textMessage, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.web.reactive.socket.WebSocketSession

close

Constructor Details

UndertowWebSocketSession

public UndertowWebSocketSession(io.undertow.websockets.core.WebSocketChannel channel,
 HandshakeInfo info,
 DataBufferFactory factory)

UndertowWebSocketSession

public UndertowWebSocketSession(io.undertow.websockets.core.WebSocketChannel channel,
 HandshakeInfo info,
 DataBufferFactory factory,
 @Nullable
 reactor.core.publisher.Sinks.Empty<Void> completionSink)

Method Details

canSuspendReceiving

protected boolean canSuspendReceiving()

Description copied from class: AbstractListenerWebSocketSession

Whether the underlying WebSocket API has flow control and can suspend and resume the receiving of messages.

Note: Sub-classes are encouraged to start out in suspended mode, if possible, and wait until demand is received.

Specified by:

canSuspendReceiving in class AbstractListenerWebSocketSession<io.undertow.websockets.core.WebSocketChannel>

suspendReceiving

protected void suspendReceiving()

Description copied from class: AbstractListenerWebSocketSession

Suspend receiving until received message(s) are processed and more demand is generated by the downstream Subscriber.

Note: if the underlying WebSocket API does not provide flow control for receiving messages, this method should be a no-op and AbstractListenerWebSocketSession.canSuspendReceiving() should return false.

Specified by:

suspendReceiving in class AbstractListenerWebSocketSession<io.undertow.websockets.core.WebSocketChannel>

resumeReceiving

protected void resumeReceiving()

Description copied from class: AbstractListenerWebSocketSession

Resume receiving new message(s) after demand is generated by the downstream Subscriber.

Note: if the underlying WebSocket API does not provide flow control for receiving messages, this method should be a no-op and AbstractListenerWebSocketSession.canSuspendReceiving() should return false.

Specified by:

resumeReceiving in class AbstractListenerWebSocketSession<io.undertow.websockets.core.WebSocketChannel>

sendMessage

protected boolean sendMessage(WebSocketMessage message)
                       throws IOException

Description copied from class: AbstractListenerWebSocketSession

Send the given WebSocket message.

Note: Sub-classes are responsible for releasing the payload data buffer, once fully written, if pooled buffers apply to the underlying container.

Specified by:

sendMessage in class AbstractListenerWebSocketSession<io.undertow.websockets.core.WebSocketChannel>

Throws:

IOException

isOpen

public boolean isOpen()

Description copied from interface: WebSocketSession

Whether the underlying connection is open.

close

public reactor.core.publisher.Mono<Void> close(CloseStatus status)

Description copied from interface: WebSocketSession

Close the WebSocket session with the given status.

Parameters:

status - the close status