use bytes::{Buf, BufMut};
use crate::primitives::fixed::{get_i16, get_i32, put_i16, put_i32};
use crate::tagged_fields::{WriteTaggedFields, read_tagged_fields, tagged_fields_len};
use crate::{Decode, Encode, ProtocolError, UnknownTaggedFields};
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 LeaderChangeMessage {
pub version: i16,
pub leader_id: i32,
pub voters: Vec<super::common::leader_change_message::voter::Voter>,
pub granting_voters: Vec<super::common::leader_change_message::voter::Voter>,
pub unknown_tagged_fields: UnknownTaggedFields,
}
impl Encode for LeaderChangeMessage {
fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
if !(MIN_VERSION..=MAX_VERSION).contains(&version) {
return Err(ProtocolError::SchemaMismatch(
"LeaderChangeMessage version out of range",
));
}
let flex = is_flexible(version);
if version >= 0 {
put_i16(buf, self.version);
}
if version >= 0 {
put_i32(buf, self.leader_id);
}
if version >= 0 {
{
crate::primitives::array::put_array_len(buf, (self.voters).len(), flex);
for it in &self.voters {
it.encode(buf, version)?;
}
}
}
if version >= 0 {
{
crate::primitives::array::put_array_len(buf, (self.granting_voters).len(), flex);
for it in &self.granting_voters {
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 = is_flexible(version);
let mut n: usize = 0;
if version >= 0 {
n += 2;
}
if version >= 0 {
n += 4;
}
if version >= 0 {
n += {
let prefix =
crate::primitives::array::array_len_prefix_len((self.voters).len(), flex);
let body: usize = (self.voters).iter().map(|it| it.encoded_len(version)).sum();
prefix + body
};
}
if version >= 0 {
n += {
let prefix = crate::primitives::array::array_len_prefix_len(
(self.granting_voters).len(),
flex,
);
let body: usize = (self.granting_voters)
.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 Decode<'_> for LeaderChangeMessage {
fn decode<B: Buf>(buf: &mut B, version: i16) -> Result<Self, ProtocolError> {
if !(MIN_VERSION..=MAX_VERSION).contains(&version) {
return Err(ProtocolError::SchemaMismatch(
"LeaderChangeMessage version out of range",
));
}
let flex = is_flexible(version);
let mut out = Self::default();
if version >= 0 {
out.version = get_i16(buf)?;
}
if version >= 0 {
out.leader_id = get_i32(buf)?;
}
if version >= 0 {
out.voters = {
let n = crate::primitives::array::get_array_len(buf, flex)?;
let mut v = Vec::with_capacity(n);
for _ in 0..n {
v.push(super::common::leader_change_message::voter::Voter::decode(
buf, version,
)?);
}
v
};
}
if version >= 0 {
out.granting_voters = {
let n = crate::primitives::array::get_array_len(buf, flex)?;
let mut v = Vec::with_capacity(n);
for _ in 0..n {
v.push(super::common::leader_change_message::voter::Voter::decode(
buf, version,
)?);
}
v
};
}
if flex {
out.unknown_tagged_fields = read_tagged_fields(buf, |_tag, _payload| Ok(false))?;
}
Ok(out)
}
}
#[cfg(test)]
impl LeaderChangeMessage {
#[must_use]
pub fn populated(version: i16) -> Self {
let mut m = Self::default();
if version >= 0 {
m.version = 1i16;
}
if version >= 0 {
m.leader_id = 1i32;
}
if version >= 0 {
m.voters = vec![super::common::leader_change_message::voter::Voter::populated(version)];
}
if version >= 0 {
m.granting_voters =
vec![super::common::leader_change_message::voter::Voter::populated(version)];
}
m
}
}
#[must_use]
#[allow(unused_comparisons)]
pub fn default_json(version: i16) -> ::serde_json::Value {
let mut obj = ::serde_json::Map::new();
obj.insert("version".to_string(), ::serde_json::json!(0));
obj.insert("leaderId".to_string(), ::serde_json::json!(0));
obj.insert("voters".to_string(), ::serde_json::Value::Array(vec![]));
obj.insert(
"grantingVoters".to_string(),
::serde_json::Value::Array(vec![]),
);
::serde_json::Value::Object(obj)
}