use bytes::BufMut;
use crate::primitives::fixed::{get_bool, get_i32, put_bool, put_i32};
use crate::primitives::string_bytes::{
compact_nullable_string_len, compact_string_len, nullable_string_len,
put_compact_nullable_string, put_compact_string, put_nullable_string, put_string, string_len,
};
use crate::primitives::string_bytes_borrowed::{
get_compact_nullable_string_borrowed, get_compact_string_borrowed,
get_nullable_string_borrowed, get_string_borrowed,
};
use crate::tagged_fields::{WriteTaggedFields, read_tagged_fields, tagged_fields_len};
use crate::{DecodeBorrow, Encode, ProtocolError, UnknownTaggedFields};
pub const API_KEY: i16 = 9;
pub const MIN_VERSION: i16 = 1;
pub const MAX_VERSION: i16 = 10;
pub const FLEXIBLE_MIN: i16 = 6;
#[inline]
fn is_flexible(version: i16) -> bool {
version >= FLEXIBLE_MIN
}
#[derive(Debug, Clone, PartialEq, Eq, Default)]
pub struct OffsetFetchRequest<'a> {
pub group_id: &'a str,
pub topics: Option<Vec<OffsetFetchRequestTopic<'a>>>,
pub groups: Vec<OffsetFetchRequestGroup<'a>>,
pub require_stable: bool,
pub unknown_tagged_fields: UnknownTaggedFields,
}
impl OffsetFetchRequest<'_> {
pub fn to_owned(&self) -> crate::owned::offset_fetch_request::OffsetFetchRequest {
crate::owned::offset_fetch_request::OffsetFetchRequest {
group_id: (self.group_id).to_string(),
topics: (self.topics)
.as_ref()
.map(|v| v.iter().map(OffsetFetchRequestTopic::to_owned).collect()),
groups: (self.groups)
.iter()
.map(OffsetFetchRequestGroup::to_owned)
.collect(),
require_stable: (self.require_stable),
unknown_tagged_fields: self.unknown_tagged_fields.clone(),
}
}
}
impl Encode for OffsetFetchRequest<'_> {
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 (0..=7).contains(&version) {
if flex {
put_compact_string(buf, self.group_id);
} else {
put_string(buf, self.group_id);
}
}
if (0..=7).contains(&version) {
if version >= 2 {
{
let len = (self.topics).as_ref().map(Vec::len);
crate::primitives::array::put_nullable_array_len(buf, len, flex);
if let Some(v) = &self.topics {
for it in v {
it.encode(buf, version)?;
}
}
}
} else {
{
let v = (self.topics).as_deref().unwrap_or(&[]);
crate::primitives::array::put_array_len(buf, v.len(), flex);
for it in v {
it.encode(buf, version)?;
}
}
}
}
if version >= 8 {
{
crate::primitives::array::put_array_len(buf, (self.groups).len(), flex);
for it in &self.groups {
it.encode(buf, version)?;
}
}
}
if version >= 7 {
put_bool(buf, self.require_stable);
}
if flex {
let tagged = WriteTaggedFields::new();
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 (0..=7).contains(&version) {
n += if flex {
compact_string_len(self.group_id)
} else {
string_len(self.group_id)
};
}
if (0..=7).contains(&version) {
n += if version >= 2 {
{
let opt: Option<&Vec<_>> = (self.topics).as_ref();
let prefix = crate::primitives::array::nullable_array_len_prefix_len(
opt.map(std::vec::Vec::len),
flex,
);
let body: usize =
opt.map_or(0, |v| v.iter().map(|it| it.encoded_len(version)).sum());
prefix + body
}
} else {
{
let v = (self.topics).as_deref().unwrap_or(&[]);
let prefix = crate::primitives::array::array_len_prefix_len(v.len(), flex);
let body: usize = v.iter().map(|it| it.encoded_len(version)).sum();
prefix + body
}
};
}
if version >= 8 {
n += {
let prefix =
crate::primitives::array::array_len_prefix_len((self.groups).len(), flex);
let body: usize = (self.groups).iter().map(|it| it.encoded_len(version)).sum();
prefix + body
};
}
if version >= 7 {
n += 1;
}
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 OffsetFetchRequest<'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 (0..=7).contains(&version) {
out.group_id = if flex {
get_compact_string_borrowed(buf)?
} else {
get_string_borrowed(buf)?
};
}
if (0..=7).contains(&version) {
out.topics = if version >= 2 {
{
let opt = crate::primitives::array::get_nullable_array_len(buf, flex)?;
match opt {
None => None,
Some(n) => {
let mut v = Vec::with_capacity(n);
for _ in 0..n {
v.push(OffsetFetchRequestTopic::decode_borrow(buf, version)?);
}
Some(v)
}
}
}
} else {
Some({
let n = crate::primitives::array::get_array_len(buf, flex)?;
let mut v = Vec::with_capacity(n);
for _ in 0..n {
v.push(OffsetFetchRequestTopic::decode_borrow(buf, version)?);
}
v
})
};
}
if version >= 8 {
out.groups = {
let n = crate::primitives::array::get_array_len(buf, flex)?;
let mut v = Vec::with_capacity(n);
for _ in 0..n {
v.push(OffsetFetchRequestGroup::decode_borrow(buf, version)?);
}
v
};
}
if version >= 7 {
out.require_stable = get_bool(buf)?;
}
if flex {
out.unknown_tagged_fields = read_tagged_fields(buf, |_tag, _payload| Ok(false))?;
}
Ok(out)
}
}
#[cfg(test)]
impl OffsetFetchRequest<'_> {
#[must_use]
pub fn populated(version: i16) -> Self {
let mut m = Self::default();
if (0..=7).contains(&version) {
m.group_id = "x";
}
if (0..=7).contains(&version) {
m.topics = Some(vec![OffsetFetchRequestTopic::populated(version)]);
}
if version >= 8 {
m.groups = vec![OffsetFetchRequestGroup::populated(version)];
}
if version >= 7 {
m.require_stable = true;
}
m
}
}
#[derive(Debug, Clone, PartialEq, Eq, Default)]
pub struct OffsetFetchRequestTopic<'a> {
pub name: &'a str,
pub partition_indexes: Vec<i32>,
pub unknown_tagged_fields: UnknownTaggedFields,
}
impl OffsetFetchRequestTopic<'_> {
pub fn to_owned(&self) -> crate::owned::offset_fetch_request::OffsetFetchRequestTopic {
crate::owned::offset_fetch_request::OffsetFetchRequestTopic {
name: (self.name).to_string(),
partition_indexes: (self.partition_indexes).clone(),
unknown_tagged_fields: self.unknown_tagged_fields.clone(),
}
}
}
impl Encode for OffsetFetchRequestTopic<'_> {
fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
let flex = version >= 6;
if (0..=7).contains(&version) {
if flex {
put_compact_string(buf, self.name);
} else {
put_string(buf, self.name);
}
}
if (0..=7).contains(&version) {
{
crate::primitives::array::put_array_len(buf, (self.partition_indexes).len(), flex);
for it in &self.partition_indexes {
put_i32(buf, *it);
}
}
}
if flex {
let tagged = WriteTaggedFields::new();
tagged.write(buf, &self.unknown_tagged_fields);
}
Ok(())
}
fn encoded_len(&self, version: i16) -> usize {
let flex = version >= 6;
let mut n: usize = 0;
if (0..=7).contains(&version) {
n += if flex {
compact_string_len(self.name)
} else {
string_len(self.name)
};
}
if (0..=7).contains(&version) {
n += {
let prefix = crate::primitives::array::array_len_prefix_len(
(self.partition_indexes).len(),
flex,
);
let body: usize = (self.partition_indexes).iter().map(|_| 4).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 OffsetFetchRequestTopic<'de> {
fn decode_borrow(buf: &mut &'de [u8], version: i16) -> Result<Self, ProtocolError> {
let flex = version >= 6;
let mut out = Self::default();
if (0..=7).contains(&version) {
out.name = if flex {
get_compact_string_borrowed(buf)?
} else {
get_string_borrowed(buf)?
};
}
if (0..=7).contains(&version) {
out.partition_indexes = {
let n = crate::primitives::array::get_array_len(buf, flex)?;
let mut v = Vec::with_capacity(n);
for _ in 0..n {
v.push(get_i32(buf)?);
}
v
};
}
if flex {
out.unknown_tagged_fields = read_tagged_fields(buf, |_tag, _payload| Ok(false))?;
}
Ok(out)
}
}
#[cfg(test)]
impl OffsetFetchRequestTopic<'_> {
#[must_use]
pub fn populated(version: i16) -> Self {
let mut m = Self::default();
if (0..=7).contains(&version) {
m.name = "x";
}
if (0..=7).contains(&version) {
m.partition_indexes = vec![1i32];
}
m
}
}
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct OffsetFetchRequestGroup<'a> {
pub group_id: &'a str,
pub member_id: Option<&'a str>,
pub member_epoch: i32,
pub topics: Option<Vec<OffsetFetchRequestTopics<'a>>>,
pub unknown_tagged_fields: UnknownTaggedFields,
}
impl Default for OffsetFetchRequestGroup<'_> {
fn default() -> Self {
Self {
group_id: "",
member_id: None,
member_epoch: -1i32,
topics: None,
unknown_tagged_fields: Default::default(),
}
}
}
impl OffsetFetchRequestGroup<'_> {
pub fn to_owned(&self) -> crate::owned::offset_fetch_request::OffsetFetchRequestGroup {
crate::owned::offset_fetch_request::OffsetFetchRequestGroup {
group_id: (self.group_id).to_string(),
member_id: (self.member_id).map(std::string::ToString::to_string),
member_epoch: (self.member_epoch),
topics: (self.topics)
.as_ref()
.map(|v| v.iter().map(OffsetFetchRequestTopics::to_owned).collect()),
unknown_tagged_fields: self.unknown_tagged_fields.clone(),
}
}
}
impl Encode for OffsetFetchRequestGroup<'_> {
fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
let flex = version >= 6;
if version >= 8 {
if flex {
put_compact_string(buf, self.group_id);
} else {
put_string(buf, self.group_id);
}
}
if version >= 9 {
if flex {
put_compact_nullable_string(buf, self.member_id);
} else {
put_nullable_string(buf, self.member_id);
}
}
if version >= 9 {
put_i32(buf, self.member_epoch);
}
if version >= 8 {
{
let len = (self.topics).as_ref().map(Vec::len);
crate::primitives::array::put_nullable_array_len(buf, len, flex);
if let Some(v) = &self.topics {
for it in v {
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 >= 6;
let mut n: usize = 0;
if version >= 8 {
n += if flex {
compact_string_len(self.group_id)
} else {
string_len(self.group_id)
};
}
if version >= 9 {
n += if flex {
compact_nullable_string_len(self.member_id)
} else {
nullable_string_len(self.member_id)
};
}
if version >= 9 {
n += 4;
}
if version >= 8 {
n += {
let opt: Option<&Vec<_>> = (self.topics).as_ref();
let prefix = crate::primitives::array::nullable_array_len_prefix_len(
opt.map(std::vec::Vec::len),
flex,
);
let body: usize =
opt.map_or(0, |v| v.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 OffsetFetchRequestGroup<'de> {
fn decode_borrow(buf: &mut &'de [u8], version: i16) -> Result<Self, ProtocolError> {
let flex = version >= 6;
let mut out = Self::default();
if version >= 8 {
out.group_id = if flex {
get_compact_string_borrowed(buf)?
} else {
get_string_borrowed(buf)?
};
}
if version >= 9 {
out.member_id = if flex {
get_compact_nullable_string_borrowed(buf)?
} else {
get_nullable_string_borrowed(buf)?
};
}
if version >= 9 {
out.member_epoch = get_i32(buf)?;
}
if version >= 8 {
out.topics = {
let opt = crate::primitives::array::get_nullable_array_len(buf, flex)?;
match opt {
None => None,
Some(n) => {
let mut v = Vec::with_capacity(n);
for _ in 0..n {
v.push(OffsetFetchRequestTopics::decode_borrow(buf, version)?);
}
Some(v)
}
}
};
}
if flex {
out.unknown_tagged_fields = read_tagged_fields(buf, |_tag, _payload| Ok(false))?;
}
Ok(out)
}
}
#[cfg(test)]
impl OffsetFetchRequestGroup<'_> {
#[must_use]
pub fn populated(version: i16) -> Self {
let mut m = Self::default();
if version >= 8 {
m.group_id = "x";
}
if version >= 9 {
m.member_id = Some("x");
}
if version >= 9 {
m.member_epoch = 1i32;
}
if version >= 8 {
m.topics = Some(vec![OffsetFetchRequestTopics::populated(version)]);
}
m
}
}
#[derive(Debug, Clone, PartialEq, Eq, Default)]
pub struct OffsetFetchRequestTopics<'a> {
pub name: &'a str,
pub topic_id: crate::primitives::uuid::Uuid,
pub partition_indexes: Vec<i32>,
pub unknown_tagged_fields: UnknownTaggedFields,
}
impl OffsetFetchRequestTopics<'_> {
pub fn to_owned(&self) -> crate::owned::offset_fetch_request::OffsetFetchRequestTopics {
crate::owned::offset_fetch_request::OffsetFetchRequestTopics {
name: (self.name).to_string(),
topic_id: (self.topic_id),
partition_indexes: (self.partition_indexes).clone(),
unknown_tagged_fields: self.unknown_tagged_fields.clone(),
}
}
}
impl Encode for OffsetFetchRequestTopics<'_> {
fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
let flex = version >= 6;
if (8..=9).contains(&version) {
if flex {
put_compact_string(buf, self.name);
} else {
put_string(buf, self.name);
}
}
if version >= 10 {
crate::primitives::uuid::put_uuid(buf, self.topic_id);
}
if version >= 8 {
{
crate::primitives::array::put_array_len(buf, (self.partition_indexes).len(), flex);
for it in &self.partition_indexes {
put_i32(buf, *it);
}
}
}
if flex {
let tagged = WriteTaggedFields::new();
tagged.write(buf, &self.unknown_tagged_fields);
}
Ok(())
}
fn encoded_len(&self, version: i16) -> usize {
let flex = version >= 6;
let mut n: usize = 0;
if (8..=9).contains(&version) {
n += if flex {
compact_string_len(self.name)
} else {
string_len(self.name)
};
}
if version >= 10 {
n += 16;
}
if version >= 8 {
n += {
let prefix = crate::primitives::array::array_len_prefix_len(
(self.partition_indexes).len(),
flex,
);
let body: usize = (self.partition_indexes).iter().map(|_| 4).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 OffsetFetchRequestTopics<'de> {
fn decode_borrow(buf: &mut &'de [u8], version: i16) -> Result<Self, ProtocolError> {
let flex = version >= 6;
let mut out = Self::default();
if (8..=9).contains(&version) {
out.name = if flex {
get_compact_string_borrowed(buf)?
} else {
get_string_borrowed(buf)?
};
}
if version >= 10 {
out.topic_id = crate::primitives::uuid::get_uuid(buf)?;
}
if version >= 8 {
out.partition_indexes = {
let n = crate::primitives::array::get_array_len(buf, flex)?;
let mut v = Vec::with_capacity(n);
for _ in 0..n {
v.push(get_i32(buf)?);
}
v
};
}
if flex {
out.unknown_tagged_fields = read_tagged_fields(buf, |_tag, _payload| Ok(false))?;
}
Ok(out)
}
}
#[cfg(test)]
impl OffsetFetchRequestTopics<'_> {
#[must_use]
pub fn populated(version: i16) -> Self {
let mut m = Self::default();
if (8..=9).contains(&version) {
m.name = "x";
}
if version >= 10 {
m.topic_id = crate::primitives::uuid::Uuid([1u8; 16]);
}
if version >= 8 {
m.partition_indexes = vec![1i32];
}
m
}
}