public class HttpContentCompressor extends HttpContentEncoder
HttpMessage and an HttpChunk in gzip or
deflate encoding while respecting the "Accept-Encoding" header.
If there is no matching encoding, no compression is done. For more
information on how this handler modifies the message, please refer to
HttpContentEncoder.ChannelHandler.Sharable| Constructor and Description |
|---|
HttpContentCompressor()
Creates a new handler with the default compression level (6), default window size
() and default memory level ().
|
HttpContentCompressor(int compressionLevel)
Creates a new handler with the specified compression level, default window size
() and default memory level ().
|
HttpContentCompressor(int compressionLevel,
int windowBits,
int memLevel)
Creates a new handler with the specified compression level, window size, and memory level.
|
| Modifier and Type | Method and Description |
|---|---|
protected String |
getTargetContentEncoding(String acceptEncoding)
Returns the expected content encoding of the encoded content.
|
protected EncoderEmbedder<ChannelBuffer> |
newContentEncoder(HttpMessage msg,
String acceptEncoding)
Returns a new
EncoderEmbedder that encodes the HTTP message
content. |
afterAdd, afterRemove, beforeAdd, beforeRemove, channelClosed, messageReceived, writeRequestedbindRequested, channelBound, channelConnected, channelDisconnected, channelInterestChanged, channelOpen, channelUnbound, childChannelClosed, childChannelOpen, closeRequested, connectRequested, disconnectRequested, exceptionCaught, handleDownstream, handleUpstream, setInterestOpsRequested, unbindRequested, writeCompletepublic HttpContentCompressor()
public HttpContentCompressor(int compressionLevel)
compressionLevel - 1 yields the fastest compression and 9 yields the
best compression. 0 means no compression. The default
compression level is 6.public HttpContentCompressor(int compressionLevel,
int windowBits,
int memLevel)
compressionLevel - 1 yields the fastest compression and 9 yields the
best compression. 0 means no compression. The default
compression level is 6.windowBits - The base two logarithm of the size of the history buffer. The
value should be in the range 9 to 15 inclusive.
Larger values result in better compression at the expense of
memory usage. The default value is .memLevel - How much memory should be allocated for the internal compression
state. 1 uses minimum memory and 9 uses maximum
memory. Larger values result in better and faster compression
at the expense of memory usage. The default value is .protected EncoderEmbedder<ChannelBuffer> newContentEncoder(HttpMessage msg, String acceptEncoding) throws Exception
HttpContentEncoderEncoderEmbedder that encodes the HTTP message
content.newContentEncoder in class HttpContentEncoderacceptEncoding - the value of the "Accept-Encoding" headerEncoderEmbedder if there is a supported encoding
in acceptEncoding. null otherwise.Exceptionprotected String getTargetContentEncoding(String acceptEncoding) throws Exception
HttpContentEncodergetTargetContentEncoding in class HttpContentEncoderacceptEncoding - the value of the "Accept-Encoding" headerExceptionCopyright © 2008-2015 The Netty Project. All Rights Reserved.