org.springframework.web.reactive.socket.client

Class JettyWebSocketClient

java.lang.Object

org.springframework.web.reactive.socket.client.JettyWebSocketClient

All Implemented Interfaces:

Lifecycle, WebSocketClient

public class JettyWebSocketClient
extends java.lang.Object
implements WebSocketClient, Lifecycle

A WebSocketClient implementation for use with Jetty org.eclipse.jetty.websocket.client.WebSocketClient.

Note: the Jetty WebSocketClient requires lifecycle management and must be started and stopped. This is automatically managed when this class is declared as a Spring bean and created with the default constructor. See constructor notes for more details.

Since:

5.0

Author:

Violeta Georgieva, Rossen Stoyanchev

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	JettyWebSocketClient.DefaultUpgradeListener

Field Summary

Fields

Modifier and Type	Field and Description
private DataBufferFactory	bufferFactory
private boolean	externallyManaged
private org.eclipse.jetty.websocket.client.WebSocketClient	jettyClient
private static Log	logger

Constructor Summary

Constructors

Constructor and Description
JettyWebSocketClient() Default constructor that creates and manages an instance of a Jetty WebSocketClient.
JettyWebSocketClient(org.eclipse.jetty.websocket.client.WebSocketClient jettyClient) Constructor that accepts an existing instance of a Jetty WebSocketClient.

Method Summary

Modifier and Type	Method and Description
private java.lang.Object	createHandler(java.net.URI url, WebSocketHandler handler, <any> completion)
private HandshakeInfo	createHandshakeInfo(java.net.URI url, Session jettySession)
<any>	execute(java.net.URI url, HttpHeaders headers, WebSocketHandler handler) A variant of WebSocketClient.execute(URI, WebSocketHandler) with custom headers.
<any>	execute(java.net.URI url, WebSocketHandler handler) Execute a handshake request to the given url and handle the resulting WebSocket session with the given handler.
private <any>	executeInternal(java.net.URI url, HttpHeaders headers, WebSocketHandler handler)
org.eclipse.jetty.websocket.client.WebSocketClient	getJettyClient() Return the underlying Jetty WebSocketClient.
boolean	isRunning() Check whether this component is currently running.
void	start() Start this component.
void	stop() Stop this component, typically in a synchronous fashion, such that the component is fully stopped upon return of this method.

Methods inherited from class java.lang.Object

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

Field Detail

logger

private static final Log logger

jettyClient

private final org.eclipse.jetty.websocket.client.WebSocketClient jettyClient

externallyManaged

private final boolean externallyManaged

bufferFactory

private final DataBufferFactory bufferFactory

Constructor Detail

JettyWebSocketClient

public JettyWebSocketClient()

Default constructor that creates and manages an instance of a Jetty WebSocketClient. The instance can be obtained with getJettyClient() for further configuration.

Note: When this constructor is used Lifecycle methods of this class are delegated to the Jetty WebSocketClient.

JettyWebSocketClient

public JettyWebSocketClient(org.eclipse.jetty.websocket.client.WebSocketClient jettyClient)

Constructor that accepts an existing instance of a Jetty WebSocketClient.

Note: Use of this constructor implies the Jetty WebSocketClient is externally managed and hence Lifecycle methods of this class are not delegated to it.

Method Detail

getJettyClient

public org.eclipse.jetty.websocket.client.WebSocketClient getJettyClient()

Return the underlying Jetty WebSocketClient.

start

public void start()

Description copied from interface: Lifecycle

Start this component.

Should not throw an exception if the component is already running.

In the case of a container, this will propagate the start signal to all components that apply.

Specified by:

start in interface Lifecycle

See Also:

SmartLifecycle.isAutoStartup()

stop

public void stop()

Description copied from interface: Lifecycle

Stop this component, typically in a synchronous fashion, such that the component is fully stopped upon return of this method. Consider implementing SmartLifecycle and its stop(Runnable) variant when asynchronous stop behavior is necessary.

Note that this stop notification is not guaranteed to come before destruction: On regular shutdown, Lifecycle beans will first receive a stop notification before the general destruction callbacks are being propagated; however, on hot refresh during a context's lifetime or on aborted refresh attempts, a given bean's destroy method will be called without any consideration of stop signals upfront.

Should not throw an exception if the component is not running (not started yet).

In the case of a container, this will propagate the stop signal to all components that apply.

Specified by:

stop in interface Lifecycle

See Also:

SmartLifecycle.stop(Runnable), DisposableBean.destroy()

isRunning

public boolean isRunning()

Description copied from interface: Lifecycle

Check whether this component is currently running.

In the case of a container, this will return true only if all components that apply are currently running.

Specified by:

isRunning in interface Lifecycle

Returns:

whether the component is currently running

execute

public <any> execute(java.net.URI url,
                     WebSocketHandler handler)

Description copied from interface: WebSocketClient

Execute a handshake request to the given url and handle the resulting WebSocket session with the given handler.

Specified by:

execute in interface WebSocketClient

Parameters:

url - the handshake url

handler - the handler of the WebSocket session

Returns:

completion Mono<Void> to indicate the outcome of the WebSocket session handling.

execute

public <any> execute(java.net.URI url,
                     HttpHeaders headers,
                     WebSocketHandler handler)

Description copied from interface: WebSocketClient

A variant of WebSocketClient.execute(URI, WebSocketHandler) with custom headers.

Specified by:

execute in interface WebSocketClient

Parameters:

url - the handshake url

headers - custom headers for the handshake request

handler - the handler of the WebSocket session

Returns:

completion Mono<Void> to indicate the outcome of the WebSocket session handling.

executeInternal

private <any> executeInternal(java.net.URI url,
                              HttpHeaders headers,
                              WebSocketHandler handler)

createHandler

private java.lang.Object createHandler(java.net.URI url,
                                       WebSocketHandler handler,
                                       <any> completion)

createHandshakeInfo

private HandshakeInfo createHandshakeInfo(java.net.URI url,
                                          Session jettySession)