use bytes::BufMut;
use crate::primitives::fixed::{
get_i16, get_i32, get_i64, get_u16, put_i16, put_i32, put_i64, put_u16,
};
use crate::primitives::string_bytes::{
compact_string_len, put_compact_string, put_string, string_len,
};
use crate::primitives::string_bytes::{put_bytes, put_compact_bytes};
use crate::primitives::string_bytes_borrowed::{get_bytes_borrowed, get_compact_bytes_borrowed};
use crate::primitives::string_bytes_borrowed::{get_compact_string_borrowed, get_string_borrowed};
use crate::tagged_fields::{
WriteTaggedFields, encode_to_bytes, read_tagged_fields, tagged_fields_len,
};
use crate::{Decode, DecodeBorrow, Encode, ProtocolError, UnknownTaggedFields};
pub const API_KEY: i16 = 59;
pub const MIN_VERSION: i16 = 0;
pub const MAX_VERSION: i16 = 1;
pub const FLEXIBLE_MIN: i16 = 0;
#[inline]
fn is_flexible(version: i16) -> bool {
version >= FLEXIBLE_MIN
}
#[derive(Debug, Clone, PartialEq, Eq, Default)]
pub struct FetchSnapshotResponse<'a> {
pub throttle_time_ms: i32,
pub error_code: i16,
pub topics: Vec<TopicSnapshot<'a>>,
pub node_endpoints: Vec<crate::owned::fetch_snapshot_response::NodeEndpoint>,
pub unknown_tagged_fields: UnknownTaggedFields,
}
impl FetchSnapshotResponse<'_> {
pub fn to_owned(&self) -> crate::owned::fetch_snapshot_response::FetchSnapshotResponse {
crate::owned::fetch_snapshot_response::FetchSnapshotResponse {
throttle_time_ms: (self.throttle_time_ms),
error_code: (self.error_code),
topics: (self.topics).iter().map(TopicSnapshot::to_owned).collect(),
node_endpoints: self.node_endpoints.clone(),
unknown_tagged_fields: self.unknown_tagged_fields.clone(),
}
}
}
impl Encode for FetchSnapshotResponse<'_> {
fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
if !(MIN_VERSION..=MAX_VERSION).contains(&version) {
return Err(ProtocolError::UnsupportedVersion {
api_key: API_KEY,
version,
});
}
let flex = is_flexible(version);
if version >= 0 {
put_i32(buf, self.throttle_time_ms);
}
if version >= 0 {
put_i16(buf, self.error_code);
}
if version >= 0 {
{
crate::primitives::array::put_array_len(buf, (self.topics).len(), flex);
for it in &self.topics {
it.encode(buf, version)?;
}
}
}
if flex {
let mut tagged = WriteTaggedFields::new();
if !(crate::codegen_helpers::is_default(&self.node_endpoints)) {
let payload = encode_to_bytes(
{
let prefix = crate::primitives::array::array_len_prefix_len(
(self.node_endpoints).len(),
flex,
);
let body: usize = (self.node_endpoints)
.iter()
.map(|it| it.encoded_len(version))
.sum();
prefix + body
},
|b| {
{
crate::primitives::array::put_array_len(
b,
(self.node_endpoints).len(),
flex,
);
for it in &self.node_endpoints {
it.encode(b, version)?;
}
};
Ok(())
},
);
tagged.add(0, payload);
}
tagged.write(buf, &self.unknown_tagged_fields);
}
Ok(())
}
fn encoded_len(&self, version: i16) -> usize {
let flex = is_flexible(version);
let mut n: usize = 0;
if version >= 0 {
n += 4;
}
if version >= 0 {
n += 2;
}
if version >= 0 {
n += {
let prefix =
crate::primitives::array::array_len_prefix_len((self.topics).len(), flex);
let body: usize = (self.topics).iter().map(|it| it.encoded_len(version)).sum();
prefix + body
};
}
if flex {
let mut known_pairs: Vec<(u32, usize)> = Vec::new();
if !(crate::codegen_helpers::is_default(&self.node_endpoints)) {
known_pairs.push((0, {
let prefix = crate::primitives::array::array_len_prefix_len(
(self.node_endpoints).len(),
flex,
);
let body: usize = (self.node_endpoints)
.iter()
.map(|it| it.encoded_len(version))
.sum();
prefix + body
}));
}
n += tagged_fields_len(&known_pairs, &self.unknown_tagged_fields);
}
n
}
}
impl<'de> DecodeBorrow<'de> for FetchSnapshotResponse<'de> {
fn decode_borrow(buf: &mut &'de [u8], version: i16) -> Result<Self, ProtocolError> {
if !(MIN_VERSION..=MAX_VERSION).contains(&version) {
return Err(ProtocolError::UnsupportedVersion {
api_key: API_KEY,
version,
});
}
let flex = is_flexible(version);
let mut out = Self::default();
if version >= 0 {
out.throttle_time_ms = get_i32(buf)?;
}
if version >= 0 {
out.error_code = get_i16(buf)?;
}
if version >= 0 {
out.topics = {
let n = crate::primitives::array::get_array_len(buf, flex)?;
let mut v = Vec::with_capacity(n);
for _ in 0..n {
v.push(TopicSnapshot::decode_borrow(buf, version)?);
}
v
};
}
if flex {
let mut tag_node_endpoints = None;
out.unknown_tagged_fields = read_tagged_fields(buf, |tag, payload| match tag {
0 => {
tag_node_endpoints = Some({
let b: &mut &[u8] = payload;
{
let n = crate::primitives::array::get_array_len(b, flex)?;
let mut v = Vec::with_capacity(n);
for _ in 0..n {
v.push(
crate::owned::fetch_snapshot_response::NodeEndpoint::decode(
b, version,
)?,
);
}
v
}
});
Ok(true)
}
_ => Ok(false),
})?;
if let Some(v) = tag_node_endpoints {
out.node_endpoints = v;
}
}
Ok(out)
}
}
#[cfg(test)]
impl FetchSnapshotResponse<'_> {
#[must_use]
pub fn populated(version: i16) -> Self {
let mut m = Self::default();
if version >= 0 {
m.throttle_time_ms = 1i32;
}
if version >= 0 {
m.error_code = 1i16;
}
if version >= 0 {
m.topics = vec![TopicSnapshot::populated(version)];
}
if version >= 1 {
m.node_endpoints =
vec![crate::owned::fetch_snapshot_response::NodeEndpoint::populated(version)];
}
m
}
}
#[derive(Debug, Clone, PartialEq, Eq, Default)]
pub struct TopicSnapshot<'a> {
pub name: &'a str,
pub partitions: Vec<PartitionSnapshot<'a>>,
pub unknown_tagged_fields: UnknownTaggedFields,
}
impl TopicSnapshot<'_> {
pub fn to_owned(&self) -> crate::owned::fetch_snapshot_response::TopicSnapshot {
crate::owned::fetch_snapshot_response::TopicSnapshot {
name: (self.name).to_string(),
partitions: (self.partitions)
.iter()
.map(PartitionSnapshot::to_owned)
.collect(),
unknown_tagged_fields: self.unknown_tagged_fields.clone(),
}
}
}
impl Encode for TopicSnapshot<'_> {
fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
let flex = version >= 0;
if version >= 0 {
if flex {
put_compact_string(buf, self.name);
} else {
put_string(buf, self.name);
}
}
if version >= 0 {
{
crate::primitives::array::put_array_len(buf, (self.partitions).len(), flex);
for it in &self.partitions {
it.encode(buf, version)?;
}
}
}
if flex {
let tagged = WriteTaggedFields::new();
tagged.write(buf, &self.unknown_tagged_fields);
}
Ok(())
}
fn encoded_len(&self, version: i16) -> usize {
let flex = version >= 0;
let mut n: usize = 0;
if version >= 0 {
n += if flex {
compact_string_len(self.name)
} else {
string_len(self.name)
};
}
if version >= 0 {
n += {
let prefix =
crate::primitives::array::array_len_prefix_len((self.partitions).len(), flex);
let body: usize = (self.partitions)
.iter()
.map(|it| it.encoded_len(version))
.sum();
prefix + body
};
}
if flex {
let known_pairs: Vec<(u32, usize)> = Vec::new();
n += tagged_fields_len(&known_pairs, &self.unknown_tagged_fields);
}
n
}
}
impl<'de> DecodeBorrow<'de> for TopicSnapshot<'de> {
fn decode_borrow(buf: &mut &'de [u8], version: i16) -> Result<Self, ProtocolError> {
let flex = version >= 0;
let mut out = Self::default();
if version >= 0 {
out.name = if flex {
get_compact_string_borrowed(buf)?
} else {
get_string_borrowed(buf)?
};
}
if version >= 0 {
out.partitions = {
let n = crate::primitives::array::get_array_len(buf, flex)?;
let mut v = Vec::with_capacity(n);
for _ in 0..n {
v.push(PartitionSnapshot::decode_borrow(buf, version)?);
}
v
};
}
if flex {
out.unknown_tagged_fields = read_tagged_fields(buf, |_tag, _payload| Ok(false))?;
}
Ok(out)
}
}
#[cfg(test)]
impl TopicSnapshot<'_> {
#[must_use]
pub fn populated(version: i16) -> Self {
let mut m = Self::default();
if version >= 0 {
m.name = "x";
}
if version >= 0 {
m.partitions = vec![PartitionSnapshot::populated(version)];
}
m
}
}
#[derive(Debug, Clone, PartialEq, Eq, Default)]
pub struct PartitionSnapshot<'a> {
pub index: i32,
pub error_code: i16,
pub snapshot_id: SnapshotId,
pub size: i64,
pub position: i64,
pub unaligned_records: crate::records::RecordsPayloadBorrowed<'a>,
pub current_leader: LeaderIdAndEpoch,
pub unknown_tagged_fields: UnknownTaggedFields,
}
impl PartitionSnapshot<'_> {
pub fn to_owned(&self) -> crate::owned::fetch_snapshot_response::PartitionSnapshot {
crate::owned::fetch_snapshot_response::PartitionSnapshot {
index: (self.index),
error_code: (self.error_code),
snapshot_id: (self.snapshot_id).to_owned(),
size: (self.size),
position: (self.position),
unaligned_records: (self.unaligned_records)
.to_owned()
.expect("records to_owned"),
current_leader: (self.current_leader).to_owned(),
unknown_tagged_fields: self.unknown_tagged_fields.clone(),
}
}
}
impl Encode for PartitionSnapshot<'_> {
fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
let flex = version >= 0;
if version >= 0 {
put_i32(buf, self.index);
}
if version >= 0 {
put_i16(buf, self.error_code);
}
if version >= 0 {
self.snapshot_id.encode(buf, version)?;
}
if version >= 0 {
put_i64(buf, self.size);
}
if version >= 0 {
put_i64(buf, self.position);
}
if version >= 0 {
{
let mut __rb_buf = bytes::BytesMut::new();
<crate::records::RecordsPayloadBorrowed as crate::Encode>::encode(
&self.unaligned_records,
&mut __rb_buf,
version,
)?;
if flex {
put_compact_bytes(buf, &__rb_buf);
} else {
put_bytes(buf, &__rb_buf);
}
}
}
if flex {
let mut tagged = WriteTaggedFields::new();
if !(crate::codegen_helpers::is_default(&self.current_leader)) {
let payload = encode_to_bytes(self.current_leader.encoded_len(version), |b| {
self.current_leader.encode(b, version)?;
Ok(())
});
tagged.add(0, payload);
}
tagged.write(buf, &self.unknown_tagged_fields);
}
Ok(())
}
fn encoded_len(&self, version: i16) -> usize {
let flex = version >= 0;
let mut n: usize = 0;
if version >= 0 {
n += 4;
}
if version >= 0 {
n += 2;
}
if version >= 0 {
n += self.snapshot_id.encoded_len(version);
}
if version >= 0 {
n += 8;
}
if version >= 0 {
n += 8;
}
if version >= 0 {
n += {
let __rb_len =
<crate::records::RecordsPayloadBorrowed as crate::Encode>::encoded_len(
&(self.unaligned_records),
version,
);
if flex {
crate::primitives::string_bytes::compact_bytes_len_from_size(__rb_len)
} else {
4 + __rb_len
}
};
}
if flex {
let mut known_pairs: Vec<(u32, usize)> = Vec::new();
if !(crate::codegen_helpers::is_default(&self.current_leader)) {
known_pairs.push((0, self.current_leader.encoded_len(version)));
}
n += tagged_fields_len(&known_pairs, &self.unknown_tagged_fields);
}
n
}
}
impl<'de> DecodeBorrow<'de> for PartitionSnapshot<'de> {
fn decode_borrow(buf: &mut &'de [u8], version: i16) -> Result<Self, ProtocolError> {
let flex = version >= 0;
let mut out = Self::default();
if version >= 0 {
out.index = get_i32(buf)?;
}
if version >= 0 {
out.error_code = get_i16(buf)?;
}
if version >= 0 {
out.snapshot_id = SnapshotId::decode_borrow(buf, version)?;
}
if version >= 0 {
out.size = get_i64(buf)?;
}
if version >= 0 {
out.position = get_i64(buf)?;
}
if version >= 0 {
out.unaligned_records = {
let __rb_slice = if flex {
get_compact_bytes_borrowed(buf)?
} else {
get_bytes_borrowed(buf)?
};
let mut __rb_cur = __rb_slice;
<crate::records::RecordsPayloadBorrowed as crate::DecodeBorrow>::decode_borrow(
&mut __rb_cur,
version,
)?
};
}
if flex {
let mut tag_current_leader = None;
out.unknown_tagged_fields = read_tagged_fields(buf, |tag, payload| match tag {
0 => {
tag_current_leader = Some({
let b: &mut &[u8] = payload;
LeaderIdAndEpoch::decode_borrow(b, version)?
});
Ok(true)
}
_ => Ok(false),
})?;
if let Some(v) = tag_current_leader {
out.current_leader = v;
}
}
Ok(out)
}
}
#[cfg(test)]
impl PartitionSnapshot<'_> {
#[must_use]
pub fn populated(version: i16) -> Self {
let mut m = Self::default();
if version >= 0 {
m.index = 1i32;
}
if version >= 0 {
m.error_code = 1i16;
}
if version >= 0 {
m.snapshot_id = SnapshotId::populated(version);
}
if version >= 0 {
m.size = 1i64;
}
if version >= 0 {
m.position = 1i64;
}
if version >= 0 {
m.current_leader = LeaderIdAndEpoch::populated(version);
}
m
}
}
#[derive(Debug, Clone, PartialEq, Eq, Default)]
pub struct SnapshotId {
pub end_offset: i64,
pub epoch: i32,
pub unknown_tagged_fields: UnknownTaggedFields,
}
impl SnapshotId {
pub fn to_owned(&self) -> crate::owned::fetch_snapshot_response::SnapshotId {
crate::owned::fetch_snapshot_response::SnapshotId {
end_offset: (self.end_offset),
epoch: (self.epoch),
unknown_tagged_fields: self.unknown_tagged_fields.clone(),
}
}
}
impl Encode for SnapshotId {
fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
let flex = version >= 0;
if version >= 0 {
put_i64(buf, self.end_offset);
}
if version >= 0 {
put_i32(buf, self.epoch);
}
if flex {
let tagged = WriteTaggedFields::new();
tagged.write(buf, &self.unknown_tagged_fields);
}
Ok(())
}
fn encoded_len(&self, version: i16) -> usize {
let flex = version >= 0;
let mut n: usize = 0;
if version >= 0 {
n += 8;
}
if version >= 0 {
n += 4;
}
if flex {
let known_pairs: Vec<(u32, usize)> = Vec::new();
n += tagged_fields_len(&known_pairs, &self.unknown_tagged_fields);
}
n
}
}
impl<'de> DecodeBorrow<'de> for SnapshotId {
fn decode_borrow(buf: &mut &'de [u8], version: i16) -> Result<Self, ProtocolError> {
let flex = version >= 0;
let mut out = Self::default();
if version >= 0 {
out.end_offset = get_i64(buf)?;
}
if version >= 0 {
out.epoch = get_i32(buf)?;
}
if flex {
out.unknown_tagged_fields = read_tagged_fields(buf, |_tag, _payload| Ok(false))?;
}
Ok(out)
}
}
#[cfg(test)]
impl SnapshotId {
#[must_use]
pub fn populated(version: i16) -> Self {
let mut m = Self::default();
if version >= 0 {
m.end_offset = 1i64;
}
if version >= 0 {
m.epoch = 1i32;
}
m
}
}
#[derive(Debug, Clone, PartialEq, Eq, Default)]
pub struct LeaderIdAndEpoch {
pub leader_id: i32,
pub leader_epoch: i32,
pub unknown_tagged_fields: UnknownTaggedFields,
}
impl LeaderIdAndEpoch {
pub fn to_owned(&self) -> crate::owned::fetch_snapshot_response::LeaderIdAndEpoch {
crate::owned::fetch_snapshot_response::LeaderIdAndEpoch {
leader_id: (self.leader_id),
leader_epoch: (self.leader_epoch),
unknown_tagged_fields: self.unknown_tagged_fields.clone(),
}
}
}
impl Encode for LeaderIdAndEpoch {
fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
let flex = version >= 0;
if version >= 0 {
put_i32(buf, self.leader_id);
}
if version >= 0 {
put_i32(buf, self.leader_epoch);
}
if flex {
let tagged = WriteTaggedFields::new();
tagged.write(buf, &self.unknown_tagged_fields);
}
Ok(())
}
fn encoded_len(&self, version: i16) -> usize {
let flex = version >= 0;
let mut n: usize = 0;
if version >= 0 {
n += 4;
}
if version >= 0 {
n += 4;
}
if flex {
let known_pairs: Vec<(u32, usize)> = Vec::new();
n += tagged_fields_len(&known_pairs, &self.unknown_tagged_fields);
}
n
}
}
impl<'de> DecodeBorrow<'de> for LeaderIdAndEpoch {
fn decode_borrow(buf: &mut &'de [u8], version: i16) -> Result<Self, ProtocolError> {
let flex = version >= 0;
let mut out = Self::default();
if version >= 0 {
out.leader_id = get_i32(buf)?;
}
if version >= 0 {
out.leader_epoch = get_i32(buf)?;
}
if flex {
out.unknown_tagged_fields = read_tagged_fields(buf, |_tag, _payload| Ok(false))?;
}
Ok(out)
}
}
#[cfg(test)]
impl LeaderIdAndEpoch {
#[must_use]
pub fn populated(version: i16) -> Self {
let mut m = Self::default();
if version >= 0 {
m.leader_id = 1i32;
}
if version >= 0 {
m.leader_epoch = 1i32;
}
m
}
}
#[derive(Debug, Clone, PartialEq, Eq, Default)]
pub struct NodeEndpoint<'a> {
pub node_id: i32,
pub host: &'a str,
pub port: u16,
pub unknown_tagged_fields: UnknownTaggedFields,
}
impl NodeEndpoint<'_> {
pub fn to_owned(&self) -> crate::owned::fetch_snapshot_response::NodeEndpoint {
crate::owned::fetch_snapshot_response::NodeEndpoint {
node_id: (self.node_id),
host: (self.host).to_string(),
port: (self.port),
unknown_tagged_fields: self.unknown_tagged_fields.clone(),
}
}
}
impl Encode for NodeEndpoint<'_> {
fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
let flex = version >= 0;
if version >= 1 {
put_i32(buf, self.node_id);
}
if version >= 1 {
if flex {
put_compact_string(buf, self.host);
} else {
put_string(buf, self.host);
}
}
if version >= 1 {
put_u16(buf, self.port);
}
if flex {
let tagged = WriteTaggedFields::new();
tagged.write(buf, &self.unknown_tagged_fields);
}
Ok(())
}
fn encoded_len(&self, version: i16) -> usize {
let flex = version >= 0;
let mut n: usize = 0;
if version >= 1 {
n += 4;
}
if version >= 1 {
n += if flex {
compact_string_len(self.host)
} else {
string_len(self.host)
};
}
if version >= 1 {
n += 2;
}
if flex {
let known_pairs: Vec<(u32, usize)> = Vec::new();
n += tagged_fields_len(&known_pairs, &self.unknown_tagged_fields);
}
n
}
}
impl<'de> DecodeBorrow<'de> for NodeEndpoint<'de> {
fn decode_borrow(buf: &mut &'de [u8], version: i16) -> Result<Self, ProtocolError> {
let flex = version >= 0;
let mut out = Self::default();
if version >= 1 {
out.node_id = get_i32(buf)?;
}
if version >= 1 {
out.host = if flex {
get_compact_string_borrowed(buf)?
} else {
get_string_borrowed(buf)?
};
}
if version >= 1 {
out.port = get_u16(buf)?;
}
if flex {
out.unknown_tagged_fields = read_tagged_fields(buf, |_tag, _payload| Ok(false))?;
}
Ok(out)
}
}
#[cfg(test)]
impl NodeEndpoint<'_> {
#[must_use]
pub fn populated(version: i16) -> Self {
let mut m = Self::default();
if version >= 1 {
m.node_id = 1i32;
}
if version >= 1 {
m.host = "x";
}
if version >= 1 {
m.port = 1u16;
}
m
}
}