io.netty.handler.codec.http

Class HttpObjectEncoder<H extends HttpMessage>

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.handler.codec.MessageToMessageEncoder<Object>

io.netty.handler.codec.http.HttpObjectEncoder<H>

All Implemented Interfaces:

ChannelHandler

Direct Known Subclasses:

HttpRequestEncoder, HttpResponseEncoder, RtspObjectEncoder

public abstract class HttpObjectEncoder<H extends HttpMessage>
extends MessageToMessageEncoder<Object>

Encodes an HttpMessage or an HttpContent into a ByteBuf.

Extensibility

Please note that this encoder is designed to be extended to implement a protocol derived from HTTP, such as RTSP and ICAP. To implement the encoder of such a derived protocol, extend this class and implement all abstract methods properly.

Nested Class Summary

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

ChannelHandler.Sharable, ChannelHandler.Skip

Constructor Summary

Constructors

Constructor and Description
HttpObjectEncoder()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	acceptOutboundMessage(Object msg) Returns true if the given message should be handled.
protected void	encode(ChannelHandlerContext ctx, Object msg, List<Object> out) Encode from one message to an other.
protected void	encodeHeaders(HttpHeaders headers, ByteBuf buf) Encode the HttpHeaders into a ByteBuf.
protected abstract void	encodeInitialLine(ByteBuf buf, H message)

Methods inherited from class io.netty.handler.codec.MessageToMessageEncoder

write

Methods inherited from class io.netty.channel.ChannelHandlerAdapter

bind, channelActive, channelInactive, channelRead, channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged, close, connect, deregister, 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

HttpObjectEncoder

public HttpObjectEncoder()

Method Detail

encode

protected void encode(ChannelHandlerContext ctx,
          Object msg,
          List<Object> out)
               throws Exception

Description copied from class: MessageToMessageEncoder

Encode from one message to an other. This method will be called for each written message that can be handled by this encoder.

Specified by:

encode in class MessageToMessageEncoder<Object>

Parameters:

ctx - the ChannelHandlerContext which this MessageToMessageEncoder belongs to

msg - the message to encode to an other one

out - the List into which the encoded msg should be added needs to do some kind of aggragation

Throws:

Exception - is thrown if an error accour

encodeHeaders

protected void encodeHeaders(HttpHeaders headers,
                 ByteBuf buf)
                      throws Exception

Encode the HttpHeaders into a ByteBuf.

Throws:

Exception

acceptOutboundMessage

public boolean acceptOutboundMessage(Object msg)
                              throws Exception

Description copied from class: MessageToMessageEncoder

Returns true if the given message should be handled. If false it will be passed to the next ChannelHandler in the ChannelPipeline.

Overrides:

acceptOutboundMessage in class MessageToMessageEncoder<Object>

Throws:

Exception

encodeInitialLine

protected abstract void encodeInitialLine(ByteBuf buf,
                     H message)
                                   throws Exception

Throws:

Exception