org.springframework.web.socket.handler

Class LoggingWebSocketHandlerDecorator

java.lang.Object

org.springframework.web.socket.handler.WebSocketHandlerDecorator

org.springframework.web.socket.handler.LoggingWebSocketHandlerDecorator

All Implemented Interfaces:

WebSocketHandler

public class LoggingWebSocketHandlerDecorator
extends WebSocketHandlerDecorator

A WebSocketHandlerDecorator that adds logging to WebSocket lifecycle events.

Since:

4.0

Author:

Rossen Stoyanchev

Field Summary

Fields

Modifier and Type	Field and Description
private static Log	logger

Constructor Summary

Constructors

Constructor and Description
LoggingWebSocketHandlerDecorator(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, java.lang.Throwable exception) Handle an error from the underlying WebSocket message transport.

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

Field Detail

logger

private static final Log logger

Constructor Detail

LoggingWebSocketHandlerDecorator

public LoggingWebSocketHandlerDecorator(WebSocketHandler delegate)

Method Detail

afterConnectionEstablished

public void afterConnectionEstablished(WebSocketSession session)
                                throws java.lang.Exception

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

Throws:

java.lang.Exception - this method can handle or propagate exceptions; see class-level Javadoc for details.

handleMessage

public void handleMessage(WebSocketSession session,
                          WebSocketMessage<?> message)
                   throws java.lang.Exception

Description copied from interface: WebSocketHandler

Invoked when a new WebSocket message arrives.

Specified by:

handleMessage in interface WebSocketHandler

Overrides:

handleMessage in class WebSocketHandlerDecorator

Throws:

java.lang.Exception - this method can handle or propagate exceptions; see class-level Javadoc for details.

handleTransportError

public void handleTransportError(WebSocketSession session,
                                 java.lang.Throwable exception)
                          throws java.lang.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

Throws:

java.lang.Exception - this method can handle or propagate exceptions; see class-level Javadoc for details.

afterConnectionClosed

public void afterConnectionClosed(WebSocketSession session,
                                  CloseStatus closeStatus)
                           throws java.lang.Exception

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

Throws:

java.lang.Exception - this method can handle or propagate exceptions; see class-level Javadoc for details.