public abstract class HttpMessageDecoder extends ReplayingDecoder<HttpMessageDecoder.State>
ChannelBuffer
s into HttpMessage
s and
HttpChunk
s.
Name | Meaning |
---|---|
maxInitialLineLength |
The maximum length of the initial line
(e.g. "GET / HTTP/1.0" or "HTTP/1.0 200 OK" )
If the length of the initial line exceeds this value, a
TooLongFrameException will be raised. |
maxHeaderSize |
The maximum length of all headers. If the sum of the length of each
header exceeds this value, a TooLongFrameException will be raised. |
maxChunkSize |
The maximum length of the content or each chunk. If the content length
exceeds this value, the transfer encoding of the decoded message will be
converted to 'chunked' and the content will be split into multiple
HttpChunk s. If the transfer encoding of the HTTP message is
'chunked' already, each chunk will be split into smaller chunks if the
length of the chunk exceeds this value. If you prefer not to handle
HttpChunk s in your handler, insert HttpChunkAggregator
after this decoder in the ChannelPipeline . |
Modifier and Type | Class and Description |
---|---|
protected static class |
HttpMessageDecoder.State
The internal state of
HttpMessageDecoder . |
Modifier and Type | Field and Description |
---|---|
protected HttpMessage |
message |
Modifier | Constructor and Description |
---|---|
protected |
HttpMessageDecoder()
Creates a new instance with the default
maxInitialLineLength (4096 }, maxHeaderSize (8192) , and
maxChunkSize (8192) . |
protected |
HttpMessageDecoder(int maxInitialLineLength,
int maxHeaderSize,
int maxChunkSize)
Creates a new instance with the specified parameters.
|
Modifier and Type | Method and Description |
---|---|
protected abstract HttpMessage |
createMessage(String[] initialLine) |
protected Object |
decode(ChannelHandlerContext ctx,
Channel channel,
ChannelBuffer buffer,
HttpMessageDecoder.State state)
Decodes the received packets so far into a frame.
|
protected boolean |
isContentAlwaysEmpty(HttpMessage msg) |
protected abstract boolean |
isDecodingRequest() |
actualReadableBytes, channelClosed, channelDisconnected, checkpoint, checkpoint, decodeLast, exceptionCaught, getState, messageReceived, setState
channelBound, channelConnected, channelInterestChanged, channelOpen, channelUnbound, childChannelClosed, childChannelOpen, handleUpstream, writeComplete
protected volatile HttpMessage message
protected HttpMessageDecoder()
maxInitialLineLength (4096
}, maxHeaderSize (8192)
, and
maxChunkSize (8192)
.protected HttpMessageDecoder(int maxInitialLineLength, int maxHeaderSize, int maxChunkSize)
protected Object decode(ChannelHandlerContext ctx, Channel channel, ChannelBuffer buffer, HttpMessageDecoder.State state) throws Exception
ReplayingDecoder
decode
in class ReplayingDecoder<HttpMessageDecoder.State>
ctx
- the context of this handlerchannel
- the current channelbuffer
- the cumulative buffer of received packets so far.
Note that the buffer might be empty, which means you
should not make an assumption that the buffer contains
at least one byte in your decoder implementation.state
- the current decoder state (null
if unused)Exception
protected boolean isContentAlwaysEmpty(HttpMessage msg)
protected abstract boolean isDecodingRequest()
protected abstract HttpMessage createMessage(String[] initialLine) throws Exception
Exception
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