com.hazelcast.nio.tcp

Class UnifiedProtocolDecoder

java.lang.Object

com.hazelcast.internal.networking.ChannelHandler<InboundHandler,S,D>

com.hazelcast.internal.networking.InboundHandler<ByteBuffer,Void>

com.hazelcast.nio.tcp.UnifiedProtocolDecoder

public class UnifiedProtocolDecoder
extends InboundHandler<ByteBuffer,Void>

A InboundHandler that reads the protocol bytes Protocols and based on the protocol it creates the appropriate handlers. The ProtocolDecoder doesn't forward to the dst; it replaces itself once the protocol bytes are known. So that is why the Void type for dst.

Field Summary

Fields inherited from class com.hazelcast.internal.networking.ChannelHandler

channel, dst, src

Constructor Summary

Constructors

Constructor and Description
UnifiedProtocolDecoder(IOService ioService, UnifiedProtocolEncoder protocolEncoder)

Method Summary

Modifier and Type	Method and Description
void	handlerAdded() Gets called when this ChannelHandler is added to the pipeline.
HandlerStatus	onRead() A callback to indicate that data is available in the src to be processed.

Methods inherited from class com.hazelcast.internal.networking.InboundHandler

initSrcBuffer, initSrcBuffer

Methods inherited from class com.hazelcast.internal.networking.ChannelHandler

dst, dst, interceptError, setChannel, src, src

Methods inherited from class java.lang.Object

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

Constructor Detail

UnifiedProtocolDecoder

public UnifiedProtocolDecoder(IOService ioService,
                              UnifiedProtocolEncoder protocolEncoder)

Method Detail

handlerAdded

public void handlerAdded()

Description copied from class: ChannelHandler

Gets called when this ChannelHandler is added to the pipeline. This method should execute very quickly because it could be executed on an io thread. Will be called from a thread owning this handler.

Overrides:

handlerAdded in class ChannelHandler<InboundHandler,ByteBuffer,Void>

onRead

public HandlerStatus onRead()
                     throws Exception

Description copied from class: InboundHandler

A callback to indicate that data is available in the src to be processed. InboundHandlers should be able to deal with spurious onReads (so a read even though there is nothing to be processed).

Specified by:

onRead in class InboundHandler<ByteBuffer,Void>

Returns:

HandlerStatus the status of the handler after processing the src.

Throws:

Exception - if something fails while reading data from the src or processing the data (e.g. when a Packet fails to get processed). When an exception is thrown, the ChannelErrorHandler is called.