public class CompatibleMarshallingDecoder extends ReplayingDecoder<Void>
ReplayingDecoder
which use an Unmarshaller
to read the Object out of the ByteBuf
.
If you can you should use MarshallingDecoder
.ByteToMessageDecoder.Cumulator
ChannelHandler.Sharable
Modifier and Type | Field and Description |
---|---|
protected int |
maxObjectSize |
protected UnmarshallerProvider |
provider |
COMPOSITE_CUMULATOR, MERGE_CUMULATOR
Constructor and Description |
---|
CompatibleMarshallingDecoder(UnmarshallerProvider provider,
int maxObjectSize)
Create a new instance of
CompatibleMarshallingDecoder . |
Modifier and Type | Method and Description |
---|---|
protected void |
decode(ChannelHandlerContext ctx,
ByteBuf buffer,
List<Object> out)
Decode the from one
ByteBuf to an other. |
protected void |
decodeLast(ChannelHandlerContext ctx,
ByteBuf buffer,
List<Object> out)
Is called one last time when the
ChannelHandlerContext goes in-active. |
void |
exceptionCaught(ChannelHandlerContext ctx,
Throwable cause)
Calls
ChannelHandlerContext.fireExceptionCaught(Throwable) to forward
to the next ChannelHandler in the ChannelPipeline . |
callDecode, checkpoint, checkpoint, state, state
actualReadableBytes, channelInactive, channelRead, channelReadComplete, discardSomeReadBytes, handlerRemoved, handlerRemoved0, internalBuffer, isSingleDecode, setCumulator, setDiscardAfterReads, setSingleDecode, userEventTriggered
channelActive, channelRegistered, channelUnregistered, channelWritabilityChanged
ensureNotSharable, handlerAdded, isSharable
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
handlerAdded
protected final UnmarshallerProvider provider
protected final int maxObjectSize
public CompatibleMarshallingDecoder(UnmarshallerProvider provider, int maxObjectSize)
CompatibleMarshallingDecoder
.provider
- the UnmarshallerProvider
which is used to obtain the Unmarshaller
for the Channel
maxObjectSize
- the maximal size (in bytes) of the Object
to unmarshal. Once the size is
exceeded the Channel
will get closed. Use a maxObjectSize of
Integer.MAX_VALUE
to disable this. You should only do this if you are sure
that the received Objects will never be big and the sending side are trusted, as this
opens the possibility for a DOS-Attack due an OutOfMemoryError
.protected void decode(ChannelHandlerContext ctx, ByteBuf buffer, List<Object> out) throws Exception
ByteToMessageDecoder
ByteBuf
to an other. This method will be called till either the input
ByteBuf
has nothing to read when return from this method or till nothing was read from the input
ByteBuf
.decode
in class ByteToMessageDecoder
ctx
- the ChannelHandlerContext
which this ByteToMessageDecoder
belongs tobuffer
- the ByteBuf
from which to read dataout
- the List
to which decoded messages should be addedException
- is thrown if an error occursprotected void decodeLast(ChannelHandlerContext ctx, ByteBuf buffer, List<Object> out) throws Exception
ByteToMessageDecoder
ChannelHandlerContext
goes in-active. Which means the
ByteToMessageDecoder.channelInactive(ChannelHandlerContext)
was triggered.
By default, this will just call ByteToMessageDecoder.decode(ChannelHandlerContext, ByteBuf, List)
but sub-classes may
override this for some special cleanup operation.decodeLast
in class ByteToMessageDecoder
Exception
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception
ChannelInboundHandlerAdapter
ChannelHandlerContext.fireExceptionCaught(Throwable)
to forward
to the next ChannelHandler
in the ChannelPipeline
.
Sub-classes may override this method to change behavior.exceptionCaught
in interface ChannelHandler
exceptionCaught
in interface ChannelInboundHandler
exceptionCaught
in class ChannelInboundHandlerAdapter
Exception
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