Class 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 NameHeader 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 NameHeader 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 NameHeader 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.