org.atmosphere.websocket.protocol

Class SimpleHttpProtocol

java.lang.Object

org.atmosphere.websocket.protocol.SimpleHttpProtocol

All Implemented Interfaces:

java.io.Serializable, WebSocketProtocol

public class SimpleHttpProtocol
extends java.lang.Object
implements WebSocketProtocol, java.io.Serializable

Like the AsynchronousProcessor class, this class is responsible for dispatching WebSocket messages to the proper WebSocket implementation by wrapping the Websocket message's bytes within an HttpServletRequest.

The content-type is defined using ApplicationConfig.WEBSOCKET_CONTENT_TYPE property The method is defined using ApplicationConfig.WEBSOCKET_METHOD property

Author:

Jeanfrancois Arcand

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SimpleHttpProtocol()

Method Summary

Methods

Modifier and Type	Method and Description
void	configure(AtmosphereConfig config) Allow an implementation to query the AtmosphereConfig of init-param, etc.
void	onClose(WebSocket webSocket) Invoked when a WebSocket is closed
void	onError(WebSocket webSocket, WebSocketProcessor.WebSocketException t) Invoked when an error occurs.
java.util.List<AtmosphereRequest>	onMessage(WebSocket webSocket, byte[] d, int offset, int length) Parse the WebSocket message, and delegate the processing to the AtmosphereFramework.asyncSupport or to any existing technology.
java.util.List<AtmosphereRequest>	onMessage(WebSocket webSocket, java.lang.String d) Parse the WebSocket message, and delegate the processing to the AtmosphereFramework.asyncSupport or to any existing technology.
void	onOpen(WebSocket webSocket) Invoked when a WebSocket is opened

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleHttpProtocol

public SimpleHttpProtocol()

Method Detail

configure

public void configure(AtmosphereConfig config)

Allow an implementation to query the AtmosphereConfig of init-param, etc.

Specified by:

configure in interface WebSocketProtocol

Parameters:

config - AtmosphereConfig

onMessage

public java.util.List<AtmosphereRequest> onMessage(WebSocket webSocket,
                                          java.lang.String d)

Parse the WebSocket message, and delegate the processing to the AtmosphereFramework.asyncSupport or to any existing technology. Invoking AtmosphereFramework.asyncSupport will delegate the request processing to the AtmosphereHandler implementation. Returning null means this implementation will handle itself the processing/dispatching of the WebSocket's request;
As an example, this is how Websocket messages are delegated to the Jersey runtime.

Specified by:

onMessage in interface WebSocketProtocol

Parameters:

webSocket - The WebSocket connection

d - The Websocket message

Returns:

A list of AtmosphereResource, or null if the request won't be dispatched.

onMessage

public java.util.List<AtmosphereRequest> onMessage(WebSocket webSocket,
                                          byte[] d,
                                          int offset,
                                          int length)

Parse the WebSocket message, and delegate the processing to the AtmosphereFramework.asyncSupport or to any existing technology. Invoking AtmosphereFramework.asyncSupport will delegate the request processing to the AtmosphereHandler implementation. Returning null means this implementation will handle itself the processing/dispatching of the WebSocket's request;
As an example, this is how Websocket messages are delegated to the Jersey runtime.

Specified by:

onMessage in interface WebSocketProtocol

Parameters:

webSocket - The WebSocket connection

offset - offset message index

length - length of the message.

Returns:

A list of AtmosphereResource, or null if the request won't be dispatched.

onOpen

public void onOpen(WebSocket webSocket)

Invoked when a WebSocket is opened

Specified by:

onOpen in interface WebSocketProtocol

Parameters:

webSocket - WebSocket

onClose

public void onClose(WebSocket webSocket)

Invoked when a WebSocket is closed

Specified by:

onClose in interface WebSocketProtocol

Parameters:

webSocket - WebSocket

onError

public void onError(WebSocket webSocket,
           WebSocketProcessor.WebSocketException t)

Invoked when an error occurs.

Specified by:

onError in interface WebSocketProtocol

Parameters:

webSocket - WebSocket

t - a WebSocketProcessor.WebSocketException