Struct kf_protocol_transport::KfCodec

pub struct KfCodec {}

Implement Kafka codec as in https://kafka.apache.org/protocol#The_Messages_ListOffsets First 4 bytes are size of the message. Then total buffer = 4 + message content

Implementations

impl KfCodec

pub fn new() -> Self

Trait Implementations

impl Debug for KfCodec

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Decoder for KfCodec

type Item = BytesMut

The type of decoded frames.

type Error = IoError

The type of unrecoverable frame decoding errors.

fn decode(
    &mut self,
    bytes: &mut BytesMut
) -> Result<Option<BytesMut>, Self::Error>

Attempts to decode a frame from the provided buffer of bytes.

fn decode_eof(
    &mut self,
    buf: &mut BytesMut
) -> Result<Option<Self::Item>, Self::Error>

A default method available to be called when there are no more bytes available to be read from the underlying I/O.

fn framed<T>(self, io: T) -> Framed<T, Self> where
    T: AsyncRead + AsyncWrite, 

Provides a [Stream] and [Sink] interface for reading and writing to this Io object, using Decode and Encode to read and write the raw data.

impl Default for KfCodec

fn default() -> KfCodec

Returns the "default value" for a type.

impl Encoder<Bytes> for KfCodec

Implement encoder for Kafka Codec We don't write buffer length because of file slice. The buffer length is encoded in the

type Error = IoError

The type of encoding errors.

fn encode(&mut self, data: Bytes, buf: &mut BytesMut) -> Result<(), IoError>

Encodes a frame into the buffer provided.