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

Methods

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 items returned by decode

type Error = IoError

The type of decoding errors.

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

Decode an item from the src BytesMut into an item

impl Default for KfCodec

fn default() -> KfCodec

Returns the "default value" for a type.

impl Encoder 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 Item = Bytes

The type of items consumed by encode

type Error = IoError

The type of encoding errors.

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

Encodes an item into the BytesMut provided by dst.