org.jboss.netty.handler.codec.spdy

Class SpdyHttpEncoder

java.lang.Object

org.jboss.netty.handler.codec.spdy.SpdyHttpEncoder

All Implemented Interfaces:

ChannelDownstreamHandler, ChannelHandler

public class SpdyHttpEncoder
extends Object
implements ChannelDownstreamHandler

Encodes HttpRequests, HttpResponses, and HttpChunks into SpdySynStreamFrames and SpdySynReplyFrames.

Request Annotations

SPDY specific headers must be added to HttpRequests:

Header Name	Header Value
"X-SPDY-Stream-ID"	The Stream-ID for this request. Stream-IDs must be odd, positive integers, and must increase monotonically.
"X-SPDY-Priority"	The priority value for this request. The priority should be between 0 and 7 inclusive. 0 represents the highest priority and 7 represents the lowest. This header is optional and defaults to 0.

Response Annotations

SPDY specific headers must be added to HttpResponses:

Header Name	Header Value
"X-SPDY-Stream-ID"	The Stream-ID of the request corresponding to this response.

Pushed Resource Annotations

SPDY specific headers must be added to pushed HttpResponses:

Header Name	Header Value
"X-SPDY-Stream-ID"	The Stream-ID for this resource. Stream-IDs must be even, positive integers, and must increase monotonically.
"X-SPDY-Associated-To-Stream-ID"	The Stream-ID of the request that initiated this pushed resource.
"X-SPDY-Priority"	The priority value for this resource. The priority should be between 0 and 7 inclusive. 0 represents the highest priority and 7 represents the lowest. This header is optional and defaults to 0.
"X-SPDY-URL"	The absolute path for the resource being pushed.

Required Annotations

SPDY requires that all Requests and Pushed Resources contain an HTTP "Host" header.

Optional Annotations

Requests and Pushed Resources must contain a SPDY scheme header. This can be set via the "X-SPDY-Scheme" header but otherwise defaults to "https" as that is the most common SPDY deployment.

Chunked Content

This encoder associates all HttpChunks that it receives with the most recently received 'chunked' HttpRequest or HttpResponse.

Pushed Resources

All pushed resources should be sent before sending the response that corresponds to the initial request.

Nested Class Summary

Nested classes/interfaces inherited from interface org.jboss.netty.channel.ChannelHandler

ChannelHandler.Sharable

Constructor Summary

Constructors

Constructor and Description
SpdyHttpEncoder() Deprecated.
SpdyHttpEncoder(int version) Creates a new instance.

Method Summary

Methods

Modifier and Type	Method and Description
void	handleDownstream(ChannelHandlerContext ctx, ChannelEvent evt) Handles the specified downstream event.

Methods inherited from class java.lang.Object

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

Constructor Detail

SpdyHttpEncoder

@Deprecated
public SpdyHttpEncoder()

Deprecated.

Creates a new instance for the SPDY/2 protocol

SpdyHttpEncoder

public SpdyHttpEncoder(int version)

Creates a new instance.

Parameters:

version - the protocol version

Method Detail

handleDownstream

public void handleDownstream(ChannelHandlerContext ctx,
                    ChannelEvent evt)
                      throws Exception

Description copied from interface: ChannelDownstreamHandler

Handles the specified downstream event.

Specified by:

handleDownstream in interface ChannelDownstreamHandler

Parameters:

ctx - the context object for this handler

evt - the downstream event to process or intercept

Throws:

Exception