use bytes::BufMut;
use crate::{
DecodeBorrow, Encode, ProtocolError, UnknownTaggedFields,
primitives::fixed::{get_i8, get_i32, put_i8, put_i32},
tagged_fields::{WriteTaggedFields, encode_to_bytes, read_tagged_fields, tagged_fields_len},
};
pub const MIN_VERSION: i16 = 0;
pub const MAX_VERSION: i16 = 2;
pub const FLEXIBLE_MIN: i16 = 0;
#[inline]
#[must_use]
pub fn is_flexible(version: i16) -> bool {
version >= FLEXIBLE_MIN
}
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct PartitionChangeRecord {
pub partition_id: i32,
pub topic_id: crate::primitives::uuid::Uuid,
pub isr: Option<Vec<i32>>,
pub leader: i32,
pub replicas: Option<Vec<i32>>,
pub removing_replicas: Option<Vec<i32>>,
pub adding_replicas: Option<Vec<i32>>,
pub leader_recovery_state: i8,
pub directories: Option<Vec<crate::primitives::uuid::Uuid>>,
pub eligible_leader_replicas: Option<Vec<i32>>,
pub last_known_elr: Option<Vec<i32>>,
pub unknown_tagged_fields: UnknownTaggedFields,
}
impl Default for PartitionChangeRecord {
fn default() -> Self {
Self {
partition_id: -1i32,
topic_id: crate::primitives::uuid::Uuid::default(),
isr: None,
leader: -2i32,
replicas: None,
removing_replicas: None,
adding_replicas: None,
leader_recovery_state: -1i8,
directories: None,
eligible_leader_replicas: None,
last_known_elr: None,
unknown_tagged_fields: UnknownTaggedFields::default(),
}
}
}
impl PartitionChangeRecord {
#[must_use]
pub fn to_owned(&self) -> crate::owned::partition_change_record::PartitionChangeRecord {
crate::owned::partition_change_record::PartitionChangeRecord {
partition_id: (self.partition_id),
topic_id: (self.topic_id),
isr: (self.isr).clone(),
leader: (self.leader),
replicas: (self.replicas).clone(),
removing_replicas: (self.removing_replicas).clone(),
adding_replicas: (self.adding_replicas).clone(),
leader_recovery_state: (self.leader_recovery_state),
directories: (self.directories).clone(),
eligible_leader_replicas: (self.eligible_leader_replicas).clone(),
last_known_elr: (self.last_known_elr).clone(),
unknown_tagged_fields: self.unknown_tagged_fields.clone(),
}
}
fn encode_field_0<B: BufMut>(&self, buf: &mut B, version: i16, _flex: bool) {
if version >= 0 {
put_i32(buf, self.partition_id);
}
}
fn encode_field_1<B: BufMut>(&self, buf: &mut B, version: i16, _flex: bool) {
if version >= 0 {
crate::primitives::uuid::put_uuid(buf, self.topic_id);
}
}
fn encode_tagged_fields<B: BufMut>(&self, buf: &mut B, version: i16, flex: bool) {
if flex {
let mut tagged = WriteTaggedFields::new();
if self.isr.is_some() {
let payload = encode_to_bytes(
{
let opt: Option<&Vec<_>> = (self.isr).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(|_| 4).sum());
prefix + body
},
|b| {
{
let len = (self.isr).as_ref().map(Vec::len);
crate::primitives::array::put_nullable_array_len(b, len, flex);
if let Some(v) = &self.isr {
for it in v {
put_i32(b, *it);
}
}
};
Ok(())
},
);
tagged.add(0, payload);
}
if self.leader != -2i32 {
let payload = encode_to_bytes(4, |b| {
put_i32(b, self.leader);
Ok(())
});
tagged.add(1, payload);
}
if self.replicas.is_some() {
let payload = encode_to_bytes(
{
let opt: Option<&Vec<_>> = (self.replicas).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(|_| 4).sum());
prefix + body
},
|b| {
{
let len = (self.replicas).as_ref().map(Vec::len);
crate::primitives::array::put_nullable_array_len(b, len, flex);
if let Some(v) = &self.replicas {
for it in v {
put_i32(b, *it);
}
}
};
Ok(())
},
);
tagged.add(2, payload);
}
if self.removing_replicas.is_some() {
let payload = encode_to_bytes(
{
let opt: Option<&Vec<_>> = (self.removing_replicas).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(|_| 4).sum());
prefix + body
},
|b| {
{
let len = (self.removing_replicas).as_ref().map(Vec::len);
crate::primitives::array::put_nullable_array_len(b, len, flex);
if let Some(v) = &self.removing_replicas {
for it in v {
put_i32(b, *it);
}
}
};
Ok(())
},
);
tagged.add(3, payload);
}
if self.adding_replicas.is_some() {
let payload = encode_to_bytes(
{
let opt: Option<&Vec<_>> = (self.adding_replicas).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(|_| 4).sum());
prefix + body
},
|b| {
{
let len = (self.adding_replicas).as_ref().map(Vec::len);
crate::primitives::array::put_nullable_array_len(b, len, flex);
if let Some(v) = &self.adding_replicas {
for it in v {
put_i32(b, *it);
}
}
};
Ok(())
},
);
tagged.add(4, payload);
}
if self.leader_recovery_state != -1i8 {
let payload = encode_to_bytes(1, |b| {
put_i8(b, self.leader_recovery_state);
Ok(())
});
tagged.add(5, payload);
}
if version >= 1 && self.directories.is_some() {
let payload = encode_to_bytes(
{
let opt: Option<&Vec<_>> = (self.directories).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(|_| 16).sum());
prefix + body
},
|b| {
{
let len = (self.directories).as_ref().map(Vec::len);
crate::primitives::array::put_nullable_array_len(b, len, flex);
if let Some(v) = &self.directories {
for it in v {
crate::primitives::uuid::put_uuid(b, *it);
}
}
};
Ok(())
},
);
tagged.add(8, payload);
}
if version >= 2 && self.eligible_leader_replicas.is_some() {
let payload = encode_to_bytes(
{
let opt: Option<&Vec<_>> = (self.eligible_leader_replicas).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(|_| 4).sum());
prefix + body
},
|b| {
{
let len = (self.eligible_leader_replicas).as_ref().map(Vec::len);
crate::primitives::array::put_nullable_array_len(b, len, flex);
if let Some(v) = &self.eligible_leader_replicas {
for it in v {
put_i32(b, *it);
}
}
};
Ok(())
},
);
tagged.add(6, payload);
}
if version >= 2 && self.last_known_elr.is_some() {
let payload = encode_to_bytes(
{
let opt: Option<&Vec<_>> = (self.last_known_elr).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(|_| 4).sum());
prefix + body
},
|b| {
{
let len = (self.last_known_elr).as_ref().map(Vec::len);
crate::primitives::array::put_nullable_array_len(b, len, flex);
if let Some(v) = &self.last_known_elr {
for it in v {
put_i32(b, *it);
}
}
};
Ok(())
},
);
tagged.add(7, payload);
}
tagged.write(buf, &self.unknown_tagged_fields);
}
}
fn decode_field_0(
out: &mut Self,
buf: &mut &[u8],
version: i16,
_flex: bool,
) -> Result<(), ProtocolError> {
if version >= 0 {
out.partition_id = get_i32(buf)?;
}
Ok(())
}
fn decode_field_1(
out: &mut Self,
buf: &mut &[u8],
version: i16,
_flex: bool,
) -> Result<(), ProtocolError> {
if version >= 0 {
out.topic_id = crate::primitives::uuid::get_uuid(buf)?;
}
Ok(())
}
fn decode_tagged_fields(
out: &mut Self,
buf: &mut &[u8],
version: i16,
flex: bool,
) -> Result<(), ProtocolError> {
if flex {
let mut tag_isr = None;
let mut tag_leader = None;
let mut tag_replicas = None;
let mut tag_removing_replicas = None;
let mut tag_adding_replicas = None;
let mut tag_leader_recovery_state = None;
let mut tag_directories = None;
let mut tag_eligible_leader_replicas = None;
let mut tag_last_known_elr = None;
out.unknown_tagged_fields = read_tagged_fields(buf, |tag, payload| match tag {
0 => {
tag_isr = Some({
let b: &mut &[u8] = payload;
{
let opt = crate::primitives::array::get_nullable_array_len(b, flex)?;
match opt {
None => None,
Some(n) => {
let mut v = Vec::with_capacity(n);
for _ in 0..n {
v.push(get_i32(b)?);
}
Some(v)
}
}
}
});
Ok(true)
}
1 => {
tag_leader = Some({
let b: &mut &[u8] = payload;
get_i32(b)?
});
Ok(true)
}
2 => {
tag_replicas = Some({
let b: &mut &[u8] = payload;
{
let opt = crate::primitives::array::get_nullable_array_len(b, flex)?;
match opt {
None => None,
Some(n) => {
let mut v = Vec::with_capacity(n);
for _ in 0..n {
v.push(get_i32(b)?);
}
Some(v)
}
}
}
});
Ok(true)
}
3 => {
tag_removing_replicas = Some({
let b: &mut &[u8] = payload;
{
let opt = crate::primitives::array::get_nullable_array_len(b, flex)?;
match opt {
None => None,
Some(n) => {
let mut v = Vec::with_capacity(n);
for _ in 0..n {
v.push(get_i32(b)?);
}
Some(v)
}
}
}
});
Ok(true)
}
4 => {
tag_adding_replicas = Some({
let b: &mut &[u8] = payload;
{
let opt = crate::primitives::array::get_nullable_array_len(b, flex)?;
match opt {
None => None,
Some(n) => {
let mut v = Vec::with_capacity(n);
for _ in 0..n {
v.push(get_i32(b)?);
}
Some(v)
}
}
}
});
Ok(true)
}
5 => {
tag_leader_recovery_state = Some({
let b: &mut &[u8] = payload;
get_i8(b)?
});
Ok(true)
}
8 if version >= 1 => {
tag_directories = Some({
let b: &mut &[u8] = payload;
{
let opt = crate::primitives::array::get_nullable_array_len(b, flex)?;
match opt {
None => None,
Some(n) => {
let mut v = Vec::with_capacity(n);
for _ in 0..n {
v.push(crate::primitives::uuid::get_uuid(b)?);
}
Some(v)
}
}
}
});
Ok(true)
}
8 => Err(ProtocolError::TagNotValidForVersion { tag: 8, version }),
6 if version >= 2 => {
tag_eligible_leader_replicas = Some({
let b: &mut &[u8] = payload;
{
let opt = crate::primitives::array::get_nullable_array_len(b, flex)?;
match opt {
None => None,
Some(n) => {
let mut v = Vec::with_capacity(n);
for _ in 0..n {
v.push(get_i32(b)?);
}
Some(v)
}
}
}
});
Ok(true)
}
6 => Err(ProtocolError::TagNotValidForVersion { tag: 6, version }),
7 if version >= 2 => {
tag_last_known_elr = Some({
let b: &mut &[u8] = payload;
{
let opt = crate::primitives::array::get_nullable_array_len(b, flex)?;
match opt {
None => None,
Some(n) => {
let mut v = Vec::with_capacity(n);
for _ in 0..n {
v.push(get_i32(b)?);
}
Some(v)
}
}
}
});
Ok(true)
}
7 => Err(ProtocolError::TagNotValidForVersion { tag: 7, version }),
_ => Ok(false),
})?;
if let Some(v) = tag_isr {
out.isr = v;
}
if let Some(v) = tag_leader {
out.leader = v;
}
if let Some(v) = tag_replicas {
out.replicas = v;
}
if let Some(v) = tag_removing_replicas {
out.removing_replicas = v;
}
if let Some(v) = tag_adding_replicas {
out.adding_replicas = v;
}
if let Some(v) = tag_leader_recovery_state {
out.leader_recovery_state = v;
}
if let Some(v) = tag_directories {
out.directories = v;
}
if let Some(v) = tag_eligible_leader_replicas {
out.eligible_leader_replicas = v;
}
if let Some(v) = tag_last_known_elr {
out.last_known_elr = v;
}
}
Ok(())
}
}
impl Encode for PartitionChangeRecord {
fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
if !(MIN_VERSION..=MAX_VERSION).contains(&version) {
return Err(ProtocolError::SchemaMismatch(
"PartitionChangeRecord version out of range",
));
}
let flex = is_flexible(version);
self.encode_field_0(buf, version, flex);
self.encode_field_1(buf, version, flex);
self.encode_tagged_fields(buf, version, flex);
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 += 16;
}
if flex {
let mut known_pairs: Vec<(u32, usize)> = Vec::new();
if self.isr.is_some() {
known_pairs.push((0, {
let opt: Option<&Vec<_>> = (self.isr).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(|_| 4).sum());
prefix + body
}));
}
if self.leader != -2i32 {
known_pairs.push((1, 4));
}
if self.replicas.is_some() {
known_pairs.push((2, {
let opt: Option<&Vec<_>> = (self.replicas).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(|_| 4).sum());
prefix + body
}));
}
if self.removing_replicas.is_some() {
known_pairs.push((3, {
let opt: Option<&Vec<_>> = (self.removing_replicas).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(|_| 4).sum());
prefix + body
}));
}
if self.adding_replicas.is_some() {
known_pairs.push((4, {
let opt: Option<&Vec<_>> = (self.adding_replicas).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(|_| 4).sum());
prefix + body
}));
}
if self.leader_recovery_state != -1i8 {
known_pairs.push((5, 1));
}
if version >= 1 && self.directories.is_some() {
known_pairs.push((8, {
let opt: Option<&Vec<_>> = (self.directories).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(|_| 16).sum());
prefix + body
}));
}
if version >= 2 && self.eligible_leader_replicas.is_some() {
known_pairs.push((6, {
let opt: Option<&Vec<_>> = (self.eligible_leader_replicas).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(|_| 4).sum());
prefix + body
}));
}
if version >= 2 && self.last_known_elr.is_some() {
known_pairs.push((7, {
let opt: Option<&Vec<_>> = (self.last_known_elr).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(|_| 4).sum());
prefix + body
}));
}
n += tagged_fields_len(&known_pairs, &self.unknown_tagged_fields);
}
n
}
}
impl<'de> DecodeBorrow<'de> for PartitionChangeRecord {
fn decode_borrow(buf: &mut &'de [u8], version: i16) -> Result<Self, ProtocolError> {
if !(MIN_VERSION..=MAX_VERSION).contains(&version) {
return Err(ProtocolError::SchemaMismatch(
"PartitionChangeRecord version out of range",
));
}
let flex = is_flexible(version);
let mut out = Self::default();
Self::decode_field_0(&mut out, buf, version, flex)?;
Self::decode_field_1(&mut out, buf, version, flex)?;
Self::decode_tagged_fields(&mut out, buf, version, flex)?;
Ok(out)
}
}
#[cfg(test)]
impl PartitionChangeRecord {
#[must_use]
pub fn populated(version: i16) -> Self {
let mut m = Self::default();
if version >= 0 {
m.partition_id = 1i32;
}
if version >= 0 {
m.topic_id = crate::primitives::uuid::Uuid([1u8; 16]);
}
if version >= 0 {
m.isr = Some(vec![1i32]);
}
if version >= 0 {
m.leader = 1i32;
}
if version >= 0 {
m.replicas = Some(vec![1i32]);
}
if version >= 0 {
m.removing_replicas = Some(vec![1i32]);
}
if version >= 0 {
m.adding_replicas = Some(vec![1i32]);
}
if version >= 0 {
m.leader_recovery_state = 1i8;
}
if version >= 1 {
m.directories = Some(vec![crate::primitives::uuid::Uuid([1u8; 16])]);
}
if version >= 2 {
m.eligible_leader_replicas = Some(vec![1i32]);
}
if version >= 2 {
m.last_known_elr = Some(vec![1i32]);
}
m
}
}