org.springframework.web.socket.handler

Class ExceptionWebSocketHandlerDecorator

java.lang.Object

org.springframework.web.socket.handler.WebSocketHandlerDecorator

org.springframework.web.socket.handler.ExceptionWebSocketHandlerDecorator

All Implemented Interfaces:

WebSocketHandler

public class ExceptionWebSocketHandlerDecorator
extends WebSocketHandlerDecorator

An exception handling WebSocketHandlerDecorator. Traps all Throwable instances that escape from the decorated handler and closes the session with CloseStatus.SERVER_ERROR.

Since:

4.0

Author:

Rossen Stoyanchev

Constructor Summary

Constructors

Constructor and Description
ExceptionWebSocketHandlerDecorator(WebSocketHandler delegate)

Method Summary

Modifier and Type	Method and Description
void	afterConnectionClosed(WebSocketSession session, CloseStatus closeStatus) Invoked after the WebSocket connection has been closed by either side, or after a transport error has occurred.
void	afterConnectionEstablished(WebSocketSession session) Invoked after WebSocket negotiation has succeeded and the WebSocket connection is opened and ready for use.
void	handleMessage(WebSocketSession session, WebSocketMessage<?> message) Invoked when a new WebSocket message arrives.
void	handleTransportError(WebSocketSession session, Throwable exception) Handle an error from the underlying WebSocket message transport.
static void	tryCloseWithError(WebSocketSession session, Throwable exception, Log logger)

Methods inherited from class org.springframework.web.socket.handler.WebSocketHandlerDecorator

getDelegate, getLastHandler, supportsPartialMessages, toString, unwrap

Methods inherited from class java.lang.Object

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

Constructor Detail

ExceptionWebSocketHandlerDecorator

public ExceptionWebSocketHandlerDecorator(WebSocketHandler delegate)

Method Detail

afterConnectionEstablished

public void afterConnectionEstablished(WebSocketSession session)

Description copied from interface: WebSocketHandler

Invoked after WebSocket negotiation has succeeded and the WebSocket connection is opened and ready for use.

Specified by:

afterConnectionEstablished in interface WebSocketHandler

Overrides:

afterConnectionEstablished in class WebSocketHandlerDecorator

handleMessage

public void handleMessage(WebSocketSession session,
                          WebSocketMessage<?> message)

Description copied from interface: WebSocketHandler

Invoked when a new WebSocket message arrives.

Specified by:

handleMessage in interface WebSocketHandler

Overrides:

handleMessage in class WebSocketHandlerDecorator

handleTransportError

public void handleTransportError(WebSocketSession session,
                                 Throwable exception)

Description copied from interface: WebSocketHandler

Handle an error from the underlying WebSocket message transport.

Specified by:

handleTransportError in interface WebSocketHandler

Overrides:

handleTransportError in class WebSocketHandlerDecorator

afterConnectionClosed

public void afterConnectionClosed(WebSocketSession session,
                                  CloseStatus closeStatus)

Description copied from interface: WebSocketHandler

Invoked after the WebSocket connection has been closed by either side, or after a transport error has occurred. Although the session may technically still be open, depending on the underlying implementation, sending messages at this point is discouraged and most likely will not succeed.

Specified by:

afterConnectionClosed in interface WebSocketHandler

Overrides:

afterConnectionClosed in class WebSocketHandlerDecorator

tryCloseWithError

public static void tryCloseWithError(WebSocketSession session,
                                     Throwable exception,
                                     Log logger)