Package org.springframework.messaging.simp.stomp

Interface StompSessionHandler

All Superinterfaces:

StompFrameHandler

All Known Implementing Classes:

StompSessionHandlerAdapter

public interface StompSessionHandler
extends StompFrameHandler

A contract for client STOMP session lifecycle events including a callback when the session is established and notifications of transport or message handling failures.

This contract also extends StompFrameHandler in order to handle STOMP ERROR frames received from the broker.

Implementations of this interface should consider extending StompSessionHandlerAdapter.

Since:

4.2

Author:

Rossen Stoyanchev

See Also:

• StompSessionHandlerAdapter

Method Summary

Modifier and Type	Method	Description
void	afterConnected(StompSession session, StompHeaders connectedHeaders)	Invoked when the session is ready to use, i.e.
void	handleException(StompSession session, StompCommand command, StompHeaders headers, byte[] payload, Throwable exception)	Handle any exception arising while processing a STOMP frame such as a failure to convert the payload or an unhandled exception in the application StompFrameHandler.
void	handleTransportError(StompSession session, Throwable exception)	Handle a low level transport error which could be an I/O error or a failure to encode or decode a STOMP message.

Methods inherited from interface org.springframework.messaging.simp.stomp.StompFrameHandler

getPayloadType, handleFrame

Method Details

afterConnected

void afterConnected(StompSession session,
 StompHeaders connectedHeaders)

Invoked when the session is ready to use, i.e. after the underlying transport (TCP, WebSocket) is connected and a STOMP CONNECTED frame is received from the broker.

Parameters:

session - the client STOMP session

connectedHeaders - the STOMP CONNECTED frame headers

handleException

void handleException(StompSession session,
 @Nullable
 StompCommand command,
 StompHeaders headers,
 byte[] payload,
 Throwable exception)

Handle any exception arising while processing a STOMP frame such as a failure to convert the payload or an unhandled exception in the application StompFrameHandler.

Parameters:

session - the client STOMP session

command - the STOMP command of the frame

headers - the headers

payload - the raw payload

exception - the exception

handleTransportError

void handleTransportError(StompSession session,
 Throwable exception)

Handle a low level transport error which could be an I/O error or a failure to encode or decode a STOMP message.

Note that ConnectionLostException will be passed into this method when the connection is lost rather than closed normally via StompSession.disconnect().

Parameters:

session - the client STOMP session

exception - the exception that occurred