org.jboss.aerogear.io.netty.handler.codec.sockjs.transport
Class JsonpPollingTransport

java.lang.Object
  io.netty.channel.ChannelHandlerAdapter
      org.jboss.aerogear.io.netty.handler.codec.sockjs.transport.JsonpPollingTransport

All Implemented Interfaces:

io.netty.channel.ChannelHandler

public class JsonpPollingTransport
extends io.netty.channel.ChannelHandlerAdapter

JSON Padding (JSONP) Polling is a transport where there is no open connection between the client and the server. Instead the client will issue a new request for polling from and sending data to the SockJS service. This handler is responsible for sending data back to the client. Since JSONP is in use it need to inspect the HTTP request to find the callback method which is identified as a query parameter 'c'. The name of the callback method will be used to wrap the data into a javascript function call which is what will returned to the client.

See Also:

JsonpSendTransport

Nested Class Summary

Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler

io.netty.channel.ChannelHandler.Sharable, io.netty.channel.ChannelHandler.Skip

Constructor Summary

JsonpPollingTransport(SockJsConfig config, io.netty.handler.codec.http.FullHttpRequest request)

Method Summary

void	channelRead(io.netty.channel.ChannelHandlerContext ctx, Object msg)
void	write(io.netty.channel.ChannelHandlerContext ctx, Object msg, io.netty.channel.ChannelPromise promise)

Methods inherited from class io.netty.channel.ChannelHandlerAdapter

bind, channelActive, channelInactive, channelReadComplete, channelRegistered, channelWritabilityChanged, close, connect, disconnect, exceptionCaught, flush, handlerAdded, handlerRemoved, isSharable, read, userEventTriggered

Methods inherited from class java.lang.Object

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

Constructor Detail

JsonpPollingTransport

public JsonpPollingTransport(SockJsConfig config,
                             io.netty.handler.codec.http.FullHttpRequest request)

Method Detail

channelRead

public void channelRead(io.netty.channel.ChannelHandlerContext ctx,
                        Object msg)
                 throws Exception

Specified by:

channelRead in interface io.netty.channel.ChannelHandler

Overrides:

channelRead in class io.netty.channel.ChannelHandlerAdapter

Throws:

Exception

write

public void write(io.netty.channel.ChannelHandlerContext ctx,
                  Object msg,
                  io.netty.channel.ChannelPromise promise)
           throws Exception

Specified by:

write in interface io.netty.channel.ChannelHandler

Overrides:

write in class io.netty.channel.ChannelHandlerAdapter

Throws:

Exception