public abstract class FixedLengthDecodingState extends Object implements DecodingState
DecodingState
which consumes all received bytes until a configured
number of read bytes has been reached. Please note that this state can
produce a buffer with less data than the configured length if the associated
session has been closed unexpectedly.Constructor and Description |
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FixedLengthDecodingState(int length)
Constructs a new instance using the specified decode length.
|
Modifier and Type | Method and Description |
---|---|
DecodingState |
decode(IoBuffer in,
ProtocolDecoderOutput out)
Invoked when data is available for this state.
|
protected abstract DecodingState |
finishDecode(IoBuffer product,
ProtocolDecoderOutput out)
Invoked when this state has consumed the configured number of bytes.
|
DecodingState |
finishDecode(ProtocolDecoderOutput out)
Invoked when the associated
IoSession is closed. |
public FixedLengthDecodingState(int length)
length
- the number of bytes to read.public DecodingState decode(IoBuffer in, ProtocolDecoderOutput out) throws Exception
decode
in interface DecodingState
in
- the data to be decoded.out
- used to write decoded objects.this
for loop transitions) or null
if
the state machine has reached its end.Exception
- if the read data violated protocol specification.public DecodingState finishDecode(ProtocolDecoderOutput out) throws Exception
IoSession
is closed. This method is
useful when you deal with protocols which don't specify the length of a
message (e.g. HTTP responses without content-length header).
Implement this method to process the remaining data that
DecodingState.decode(IoBuffer, ProtocolDecoderOutput)
method didn't process
completely.finishDecode
in interface DecodingState
out
- used to write decoded objects.this
for loop transitions) or null
if
the state machine has reached its end.Exception
- if the read data violated protocol specification.protected abstract DecodingState finishDecode(IoBuffer product, ProtocolDecoderOutput out) throws Exception
product
- the data.out
- the current ProtocolDecoderOutput
used to write
decoded messages.this
for loop transitions) or null
if
the state machine has reached its end.Exception
- if the read data violated protocol specification.Copyright © 2004–2018 Apache MINA Project. All rights reserved.