org.springframework.web.socket.sockjs.transport.handler

Class XhrPollingTransportHandler

java.lang.Object

org.springframework.web.socket.sockjs.transport.handler.AbstractTransportHandler

org.springframework.web.socket.sockjs.transport.handler.AbstractHttpSendingTransportHandler

org.springframework.web.socket.sockjs.transport.handler.XhrPollingTransportHandler

All Implemented Interfaces:

SockJsSessionFactory, TransportHandler

public class XhrPollingTransportHandler
extends AbstractHttpSendingTransportHandler

A TransportHandler based on XHR (long) polling.

Since:

4.0

Author:

Rossen Stoyanchev

Field Summary

Fields inherited from class org.springframework.web.socket.sockjs.transport.handler.AbstractTransportHandler

logger, UTF8_CHARSET

Constructor Summary

Constructors

Constructor and Description
XhrPollingTransportHandler()

Method Summary

Modifier and Type	Method and Description
PollingSockJsSession	createSession(java.lang.String sessionId, WebSocketHandler handler, java.util.Map<java.lang.String,java.lang.Object> attributes) Create a new SockJS session.
protected MediaType	getContentType()
protected SockJsFrameFormat	getFrameFormat(ServerHttpRequest request)
TransportType	getTransportType() Return the transport type supported by this handler.

Methods inherited from class org.springframework.web.socket.sockjs.transport.handler.AbstractHttpSendingTransportHandler

getCallbackParam, handleRequest, handleRequestInternal

Methods inherited from class org.springframework.web.socket.sockjs.transport.handler.AbstractTransportHandler

getServiceConfig, initialize

Methods inherited from class java.lang.Object

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

Constructor Detail

XhrPollingTransportHandler

public XhrPollingTransportHandler()

Method Detail

getTransportType

public TransportType getTransportType()

Description copied from interface: TransportHandler

Return the transport type supported by this handler.

getContentType

protected MediaType getContentType()

Specified by:

getContentType in class AbstractHttpSendingTransportHandler

getFrameFormat

protected SockJsFrameFormat getFrameFormat(ServerHttpRequest request)

Specified by:

getFrameFormat in class AbstractHttpSendingTransportHandler

createSession

public PollingSockJsSession createSession(java.lang.String sessionId,
                                          WebSocketHandler handler,
                                          java.util.Map<java.lang.String,java.lang.Object> attributes)

Description copied from interface: SockJsSessionFactory

Create a new SockJS session.

Parameters:

sessionId - the ID of the session

handler - the underlying WebSocketHandler

attributes - handshake request specific attributes

Returns:

a new session, never null