use std::convert::TryInto;
use std::io::Error as IoError;
use std::fmt;
use tracing::trace;
use fluvio_protocol::bytes::Buf;
use fluvio_protocol::{Encoder, Decoder};
use fluvio_protocol::api::ApiMessage;
use fluvio_protocol::api::api_decode;
use fluvio_protocol::api::RequestHeader;
use fluvio_protocol::api::RequestMessage;
use crate::produce::DefaultProduceRequest;
use crate::fetch::FileFetchRequest;
use crate::ApiVersionsRequest;
use super::SpuServerApiKey;
use super::fetch_offset::FetchOffsetsRequest;
use super::stream_fetch::FileStreamFetchRequest;
use super::update_offset::UpdateOffsetsRequest;
#[allow(clippy::large_enum_variant)]
#[derive(Debug, Encoder)]
pub enum SpuServerRequest {
ApiVersionsRequest(RequestMessage<ApiVersionsRequest>),
ProduceRequest(RequestMessage<DefaultProduceRequest>),
FileFetchRequest(RequestMessage<FileFetchRequest>),
FetchOffsetsRequest(RequestMessage<FetchOffsetsRequest>),
FileStreamFetchRequest(RequestMessage<FileStreamFetchRequest>),
UpdateOffsetsRequest(RequestMessage<UpdateOffsetsRequest>),
}
impl fmt::Display for SpuServerRequest {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
Self::ApiVersionsRequest(_) => write!(f, "ApiVersionsRequest"),
Self::ProduceRequest(_) => write!(f, "ProduceRequest"),
Self::FileFetchRequest(_) => write!(f, "FileFetchRequest"),
Self::FetchOffsetsRequest(_) => write!(f, "FetchOffsetsRequest"),
Self::FileStreamFetchRequest(_) => write!(f, "FileStreamFetchRequest"),
Self::UpdateOffsetsRequest(_) => write!(f, "UpdateOffsetsRequest"),
}
}
}
impl Default for SpuServerRequest {
fn default() -> Self {
Self::ApiVersionsRequest(RequestMessage::<ApiVersionsRequest>::default())
}
}
impl ApiMessage for SpuServerRequest {
type ApiKey = SpuServerApiKey;
fn decode_with_header<T>(src: &mut T, header: RequestHeader) -> Result<Self, IoError>
where
Self: Default + Sized,
Self::ApiKey: Sized,
T: Buf,
{
trace!("decoding with header: {:#?}", header);
match header.api_key().try_into()? {
SpuServerApiKey::ApiVersion => api_decode!(Self, ApiVersionsRequest, src, header),
SpuServerApiKey::Produce => {
let request = DefaultProduceRequest::decode_from(src, header.api_version())?;
Ok(Self::ProduceRequest(RequestMessage::new(header, request)))
}
SpuServerApiKey::Fetch => api_decode!(Self, FileFetchRequest, src, header),
SpuServerApiKey::FetchOffsets => api_decode!(Self, FetchOffsetsRequest, src, header),
SpuServerApiKey::StreamFetch => api_decode!(Self, FileStreamFetchRequest, src, header),
SpuServerApiKey::UpdateOffsets => api_decode!(Self, UpdateOffsetsRequest, src, header),
}
}
}