Package org.apache.nifi.processors.beats.handler

Class BatchDecoder

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelInboundHandlerAdapter

io.netty.handler.codec.ByteToMessageDecoder

org.apache.nifi.processors.beats.handler.BatchDecoder

All Implemented Interfaces:

io.netty.channel.ChannelHandler, io.netty.channel.ChannelInboundHandler

public class BatchDecoder
extends io.netty.handler.codec.ByteToMessageDecoder

Byte Buffer to Batch Decoder parses bytes to batches of Beats messages

Nested Class Summary

Nested classes/interfaces inherited from class io.netty.handler.codec.ByteToMessageDecoder

io.netty.handler.codec.ByteToMessageDecoder.Cumulator

Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler

io.netty.channel.ChannelHandler.Sharable

Field Summary

Fields

Modifier and Type	Field	Description
private Queue<BatchMessage>	batchMessages
private static final int	CODE_READABLE_BYTES
private final AtomicReference<Integer>	compressedSizeRef
private static final ProtocolCodeDecoder<FrameType>	FRAME_TYPE_DECODER
private final AtomicReference<FrameType>	frameTypeRef
private static final int	INITIAL_QUEUE_SIZE
private static final int	INITIAL_WINDOW_SIZE
private static final int	INT_READABLE_BYTES
private final ComponentLog	log
private final AtomicReference<Integer>	payloadSizeRef
private final AtomicReference<Integer>	sequenceNumberRef
private static final ProtocolCodeDecoder<ProtocolVersion>	VERSION_DECODER
private final AtomicReference<ProtocolVersion>	versionRef
private final AtomicInteger	windowSize

Fields inherited from class io.netty.handler.codec.ByteToMessageDecoder

COMPOSITE_CUMULATOR, MERGE_CUMULATOR

Constructor Summary

Constructors

Constructor	Description
BatchDecoder(ComponentLog log)	Beats Batch Decoder with required arguments

Method Summary

Modifier and Type	Method	Description
protected void	decode(io.netty.channel.ChannelHandlerContext context, io.netty.buffer.ByteBuf buffer, List<Object> objects)	Decode Batch of Beats Messages from Byte Buffer
private void	decodeFrameType(FrameType frameType, io.netty.channel.ChannelHandlerContext context, io.netty.buffer.ByteBuf buffer, List<Object> batches)
private String	getRemoteHostAddress(io.netty.channel.Channel channel)
private void	processBatchMessage(BatchMessage batchMessage, List<Object> batches)
private void	processCompressed(io.netty.channel.ChannelHandlerContext context, io.netty.buffer.ByteBuf buffer, int compressedSize, List<Object> batches)
private void	processCompressed(io.netty.channel.ChannelHandlerContext context, io.netty.buffer.ByteBuf buffer, List<Object> batches)
private void	processJson(int sequenceNumber, int payloadSize, io.netty.channel.ChannelHandlerContext context, io.netty.buffer.ByteBuf buffer, List<Object> batches)
private void	processJson(io.netty.channel.ChannelHandlerContext context, io.netty.buffer.ByteBuf buffer, List<Object> batches)
private void	processWindowSize(io.netty.channel.ChannelHandlerContext context, io.netty.buffer.ByteBuf buffer)
private void	readCompressedBuffer(io.netty.buffer.ByteBuf compressedBuffer, io.netty.buffer.ByteBuf inflated, int compressedSize)
private Integer	readCompressedSize(io.netty.buffer.ByteBuf buffer)
private FrameType	readFrameType(io.netty.buffer.ByteBuf buffer)
private BatchMessage	readJsonMessage(io.netty.channel.ChannelHandlerContext context, int sequenceNumber, int payloadSize, io.netty.buffer.ByteBuf buffer)
private Integer	readPayloadSize(io.netty.buffer.ByteBuf buffer)
private Integer	readSequenceNumber(io.netty.buffer.ByteBuf buffer)
private Integer	readUnsignedInteger(io.netty.buffer.ByteBuf buffer)
private ProtocolVersion	readVersion(io.netty.buffer.ByteBuf buffer)
private void	resetFrameTypeVersion()
private void	resetSequenceVersionPayloadSize()
private void	resetWindowSize()

Methods inherited from class io.netty.handler.codec.ByteToMessageDecoder

actualReadableBytes, callDecode, channelInactive, channelRead, channelReadComplete, decodeLast, discardSomeReadBytes, handlerRemoved, handlerRemoved0, internalBuffer, isSingleDecode, setCumulator, setDiscardAfterReads, setSingleDecode, userEventTriggered

Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

channelActive, channelRegistered, channelUnregistered, channelWritabilityChanged, exceptionCaught

Methods inherited from class io.netty.channel.ChannelHandlerAdapter

ensureNotSharable, handlerAdded, isSharable

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.netty.channel.ChannelHandler

handlerAdded

Field Details

INITIAL_WINDOW_SIZE

private static final int INITIAL_WINDOW_SIZE

See Also:

• Constant Field Values

INITIAL_QUEUE_SIZE

private static final int INITIAL_QUEUE_SIZE

See Also:

• Constant Field Values

CODE_READABLE_BYTES

private static final int CODE_READABLE_BYTES

See Also:

• Constant Field Values

INT_READABLE_BYTES

private static final int INT_READABLE_BYTES

See Also:

• Constant Field Values

VERSION_DECODER

private static final ProtocolCodeDecoder<ProtocolVersion> VERSION_DECODER

FRAME_TYPE_DECODER

private static final ProtocolCodeDecoder<FrameType> FRAME_TYPE_DECODER

log

private final ComponentLog log

versionRef

private final AtomicReference<ProtocolVersion> versionRef

frameTypeRef

private final AtomicReference<FrameType> frameTypeRef

windowSize

private final AtomicInteger windowSize

sequenceNumberRef

private final AtomicReference<Integer> sequenceNumberRef

payloadSizeRef

private final AtomicReference<Integer> payloadSizeRef

compressedSizeRef

private final AtomicReference<Integer> compressedSizeRef

batchMessages

private Queue<BatchMessage> batchMessages

Constructor Details

BatchDecoder

public BatchDecoder(ComponentLog log)

Beats Batch Decoder with required arguments

Parameters:

log - Processor Log

Method Details

decode

protected void decode(io.netty.channel.ChannelHandlerContext context,
 io.netty.buffer.ByteBuf buffer,
 List<Object> objects)

Decode Batch of Beats Messages from Byte Buffer

Specified by:

decode in class io.netty.handler.codec.ByteToMessageDecoder

Parameters:

context - Channel Handler Context

buffer - Byte Buffer

objects - List of Batch objects

decodeFrameType

private void decodeFrameType(FrameType frameType,
 io.netty.channel.ChannelHandlerContext context,
 io.netty.buffer.ByteBuf buffer,
 List<Object> batches)

processWindowSize

private void processWindowSize(io.netty.channel.ChannelHandlerContext context,
 io.netty.buffer.ByteBuf buffer)

processCompressed

private void processCompressed(io.netty.channel.ChannelHandlerContext context,
 io.netty.buffer.ByteBuf buffer,
 List<Object> batches)

processCompressed

private void processCompressed(io.netty.channel.ChannelHandlerContext context,
 io.netty.buffer.ByteBuf buffer,
 int compressedSize,
 List<Object> batches)

processJson

private void processJson(io.netty.channel.ChannelHandlerContext context,
 io.netty.buffer.ByteBuf buffer,
 List<Object> batches)

processJson

private void processJson(int sequenceNumber,
 int payloadSize,
 io.netty.channel.ChannelHandlerContext context,
 io.netty.buffer.ByteBuf buffer,
 List<Object> batches)

readJsonMessage

private BatchMessage readJsonMessage(io.netty.channel.ChannelHandlerContext context,
 int sequenceNumber,
 int payloadSize,
 io.netty.buffer.ByteBuf buffer)

getRemoteHostAddress

private String getRemoteHostAddress(io.netty.channel.Channel channel)

processBatchMessage

private void processBatchMessage(BatchMessage batchMessage,
 List<Object> batches)

readCompressedBuffer

private void readCompressedBuffer(io.netty.buffer.ByteBuf compressedBuffer,
 io.netty.buffer.ByteBuf inflated,
 int compressedSize)

readSequenceNumber

private Integer readSequenceNumber(io.netty.buffer.ByteBuf buffer)

readPayloadSize

private Integer readPayloadSize(io.netty.buffer.ByteBuf buffer)

readCompressedSize

private Integer readCompressedSize(io.netty.buffer.ByteBuf buffer)

readUnsignedInteger

private Integer readUnsignedInteger(io.netty.buffer.ByteBuf buffer)

readFrameType

private FrameType readFrameType(io.netty.buffer.ByteBuf buffer)

readVersion

private ProtocolVersion readVersion(io.netty.buffer.ByteBuf buffer)

resetSequenceVersionPayloadSize

private void resetSequenceVersionPayloadSize()

resetFrameTypeVersion

private void resetFrameTypeVersion()

resetWindowSize

private void resetWindowSize()