Class SpdyHeaderBlockZlibDecoder

java.lang.Object

io.netty.handler.codec.spdy.SpdyHeaderBlockDecoder

io.netty.handler.codec.spdy.SpdyHeaderBlockRawDecoder

io.netty.handler.codec.spdy.SpdyHeaderBlockZlibDecoder

final class SpdyHeaderBlockZlibDecoder
extends SpdyHeaderBlockRawDecoder

Field Summary

Fields

Modifier and Type	Field	Description
private ByteBuf	decompressed
private final Inflater	decompressor
private static final int	DEFAULT_BUFFER_CAPACITY
private static final SpdyProtocolException	INVALID_HEADER_BLOCK
private static final int	MAX_DECOMPRESSED_SIZE_MULTIPLIER
private final long	maxDecompressedSize
private long	totalInflated

Constructor Summary

Constructors

Constructor	Description
SpdyHeaderBlockZlibDecoder(SpdyVersion spdyVersion, int maxHeaderSize)

Method Summary

Modifier and Type	Method	Description
(package private) static long	calculateMaxDecompressedSizePerBlock(int maxHeaderSize)
(package private) void	decode(ByteBufAllocator alloc, ByteBuf headerBlock, SpdyHeadersFrame frame)	Decodes a SPDY Header Block, adding the Name/Value pairs to the given Headers frame.
private int	decompress(ByteBufAllocator alloc, SpdyHeadersFrame frame)
void	end()
(package private) void	endHeaderBlock(SpdyHeadersFrame frame)
private void	ensureBuffer(ByteBufAllocator alloc)
private void	releaseBuffer()
private int	setInput(ByteBuf compressed)

Methods inherited from class SpdyHeaderBlockRawDecoder

decodeHeaderBlock

Methods inherited from class SpdyHeaderBlockDecoder

newInstance

Methods inherited from class Object

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

Field Details

DEFAULT_BUFFER_CAPACITY

private static final int DEFAULT_BUFFER_CAPACITY

See Also:

• Constant Field Values

INVALID_HEADER_BLOCK

private static final SpdyProtocolException INVALID_HEADER_BLOCK

MAX_DECOMPRESSED_SIZE_MULTIPLIER

private static final int MAX_DECOMPRESSED_SIZE_MULTIPLIER

See Also:

• Constant Field Values

decompressor

private final Inflater decompressor

maxDecompressedSize

private final long maxDecompressedSize

decompressed

private ByteBuf decompressed

totalInflated

private long totalInflated

Constructor Details

SpdyHeaderBlockZlibDecoder

SpdyHeaderBlockZlibDecoder(SpdyVersion spdyVersion,
 int maxHeaderSize)

Method Details

calculateMaxDecompressedSizePerBlock

static long calculateMaxDecompressedSizePerBlock(int maxHeaderSize)

decode

void decode(ByteBufAllocator alloc,
 ByteBuf headerBlock,
 SpdyHeadersFrame frame)
     throws Exception

Description copied from class: SpdyHeaderBlockDecoder

Decodes a SPDY Header Block, adding the Name/Value pairs to the given Headers frame. If the header block is malformed, the Headers frame will be marked as invalid. A stream error with status code PROTOCOL_ERROR must be issued in response to an invalid frame.

Overrides:

decode in class SpdyHeaderBlockRawDecoder

Parameters:

alloc - the ByteBufAllocator which can be used to allocate new ByteBufs

headerBlock - the HeaderBlock to decode

frame - the Headers frame that receives the Name/Value pairs

Throws:

Exception - If the header block is malformed in a way that prevents any future decoding of any other header blocks, an exception will be thrown. A session error with status code PROTOCOL_ERROR must be issued.

setInput

private int setInput(ByteBuf compressed)

decompress

private int decompress(ByteBufAllocator alloc,
 SpdyHeadersFrame frame)
                throws Exception

Throws:

Exception

ensureBuffer

private void ensureBuffer(ByteBufAllocator alloc)

endHeaderBlock

void endHeaderBlock(SpdyHeadersFrame frame)
             throws Exception

Overrides:

endHeaderBlock in class SpdyHeaderBlockRawDecoder

Throws:

Exception

end

public void end()

Overrides:

end in class SpdyHeaderBlockRawDecoder

releaseBuffer

private void releaseBuffer()