use bytes::{Buf, BufMut};
use crate::primitives::fixed::{get_bool, put_bool};
use crate::primitives::string_bytes::{
compact_nullable_string_len, compact_string_len, get_compact_nullable_string_owned,
get_compact_string_owned, get_nullable_string_owned, get_string_owned, nullable_string_len,
put_compact_nullable_string, put_compact_string, put_nullable_string, put_string, string_len,
};
use crate::tagged_fields::{WriteTaggedFields, read_tagged_fields, tagged_fields_len};
use crate::{Decode, Encode, ProtocolError, UnknownTaggedFields};
pub const API_KEY: i16 = 3;
pub const MIN_VERSION: i16 = 0;
pub const MAX_VERSION: i16 = 13;
pub const FLEXIBLE_MIN: i16 = 9;
#[inline]
fn is_flexible(version: i16) -> bool {
version >= FLEXIBLE_MIN
}
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct MetadataRequest {
pub topics: Option<Vec<MetadataRequestTopic>>,
pub allow_auto_topic_creation: bool,
pub include_cluster_authorized_operations: bool,
pub include_topic_authorized_operations: bool,
pub unknown_tagged_fields: UnknownTaggedFields,
}
impl Default for MetadataRequest {
fn default() -> Self {
Self {
topics: None,
allow_auto_topic_creation: true,
include_cluster_authorized_operations: false,
include_topic_authorized_operations: false,
unknown_tagged_fields: Default::default(),
}
}
}
impl Encode for MetadataRequest {
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 {
if version >= 1 {
{
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 >= 4 {
put_bool(buf, self.allow_auto_topic_creation);
}
if (8..=10).contains(&version) {
put_bool(buf, self.include_cluster_authorized_operations);
}
if version >= 8 {
put_bool(buf, self.include_topic_authorized_operations);
}
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 += if version >= 1 {
{
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 >= 4 {
n += 1;
}
if (8..=10).contains(&version) {
n += 1;
}
if version >= 8 {
n += 1;
}
if flex {
let known_pairs: Vec<(u32, usize)> = Vec::new();
n += tagged_fields_len(&known_pairs, &self.unknown_tagged_fields);
}
n
}
}
impl Decode<'_> for MetadataRequest {
fn decode<B: Buf>(buf: &mut B, 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.topics = if version >= 1 {
{
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(MetadataRequestTopic::decode(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(MetadataRequestTopic::decode(buf, version)?);
}
v
})
};
}
if version >= 4 {
out.allow_auto_topic_creation = get_bool(buf)?;
}
if (8..=10).contains(&version) {
out.include_cluster_authorized_operations = get_bool(buf)?;
}
if version >= 8 {
out.include_topic_authorized_operations = get_bool(buf)?;
}
if flex {
out.unknown_tagged_fields = read_tagged_fields(buf, |_tag, _payload| Ok(false))?;
}
Ok(out)
}
}
#[cfg(test)]
impl MetadataRequest {
#[must_use]
pub fn populated(version: i16) -> Self {
let mut m = Self::default();
if version >= 0 {
m.topics = Some(vec![MetadataRequestTopic::populated(version)]);
}
if version >= 4 {
m.allow_auto_topic_creation = true;
}
if (8..=10).contains(&version) {
m.include_cluster_authorized_operations = true;
}
if version >= 8 {
m.include_topic_authorized_operations = true;
}
m
}
}
#[derive(Debug, Clone, PartialEq, Eq, Default)]
pub struct MetadataRequestTopic {
pub topic_id: crate::primitives::uuid::Uuid,
pub name: Option<String>,
pub unknown_tagged_fields: UnknownTaggedFields,
}
impl Encode for MetadataRequestTopic {
fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
let flex = version >= 9;
if version >= 10 {
crate::primitives::uuid::put_uuid(buf, self.topic_id);
}
if version >= 0 {
if version >= 10 {
if flex {
put_compact_nullable_string(buf, self.name.as_deref());
} else {
put_nullable_string(buf, self.name.as_deref());
}
} else {
if flex {
put_compact_string(buf, (self.name).as_deref().unwrap_or(""));
} else {
put_string(buf, (self.name).as_deref().unwrap_or(""));
}
}
}
if flex {
let tagged = WriteTaggedFields::new();
tagged.write(buf, &self.unknown_tagged_fields);
}
Ok(())
}
fn encoded_len(&self, version: i16) -> usize {
let flex = version >= 9;
let mut n: usize = 0;
if version >= 10 {
n += 16;
}
if version >= 0 {
n += if version >= 10 {
if flex {
compact_nullable_string_len(self.name.as_deref())
} else {
nullable_string_len(self.name.as_deref())
}
} else {
if flex {
compact_string_len((self.name).as_deref().unwrap_or(""))
} else {
string_len((self.name).as_deref().unwrap_or(""))
}
};
}
if flex {
let known_pairs: Vec<(u32, usize)> = Vec::new();
n += tagged_fields_len(&known_pairs, &self.unknown_tagged_fields);
}
n
}
}
impl Decode<'_> for MetadataRequestTopic {
fn decode<B: Buf>(buf: &mut B, version: i16) -> Result<Self, ProtocolError> {
let flex = version >= 9;
let mut out = Self::default();
if version >= 10 {
out.topic_id = crate::primitives::uuid::get_uuid(buf)?;
}
if version >= 0 {
out.name = if version >= 10 {
if flex {
get_compact_nullable_string_owned(buf)?
} else {
get_nullable_string_owned(buf)?
}
} else {
Some(if flex {
get_compact_string_owned(buf)?
} else {
get_string_owned(buf)?
})
};
}
if flex {
out.unknown_tagged_fields = read_tagged_fields(buf, |_tag, _payload| Ok(false))?;
}
Ok(out)
}
}
#[cfg(test)]
impl MetadataRequestTopic {
#[must_use]
pub fn populated(version: i16) -> Self {
let mut m = Self::default();
if version >= 10 {
m.topic_id = crate::primitives::uuid::Uuid([1u8; 16]);
}
if version >= 0 {
m.name = Some("x".to_string());
}
m
}
}
#[must_use]
#[allow(unused_comparisons)]
pub fn default_json(version: i16) -> ::serde_json::Value {
let mut obj = ::serde_json::Map::new();
obj.insert(
"topics".to_string(),
if version >= 1 {
::serde_json::Value::Null
} else {
::serde_json::Value::Array(vec![])
},
);
if version >= 4 {
obj.insert(
"allowAutoTopicCreation".to_string(),
::serde_json::Value::Bool(true),
);
}
if (8..=10).contains(&version) {
obj.insert(
"includeClusterAuthorizedOperations".to_string(),
::serde_json::Value::Bool(false),
);
}
if version >= 8 {
obj.insert(
"includeTopicAuthorizedOperations".to_string(),
::serde_json::Value::Bool(false),
);
}
::serde_json::Value::Object(obj)
}
impl crate::ProtocolRequest for MetadataRequest {
const API_KEY: i16 = API_KEY;
const MIN_VERSION: i16 = MIN_VERSION;
const MAX_VERSION: i16 = MAX_VERSION;
const FLEXIBLE_MIN: i16 = FLEXIBLE_MIN;
type Response = super::metadata_response::MetadataResponse;
}