crabka-protocol 0.1.2

Apache Kafka wire-protocol codec (4.3.0), with typed RecordBatch and zero-copy borrowed decode
Documentation
// AUTO-GENERATED by crabka-protocol-codegen against a9ce3221537b8653448750697915607dc7936cf3. Do not edit.

use bytes::{Buf, BufMut};

use crate::primitives::fixed::{get_bool, get_i16, get_i32, put_bool, put_i16, put_i32};
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::{read_tagged_fields, tagged_fields_len, WriteTaggedFields};
use crate::{Decode, Encode, ProtocolError, UnknownTaggedFields};

pub const API_KEY: i16 = 19;
pub const MIN_VERSION: i16 = 2;
pub const MAX_VERSION: i16 = 7;
pub const FLEXIBLE_MIN: i16 = 5;

#[inline]
fn is_flexible(version: i16) -> bool { version >= FLEXIBLE_MIN }

#[derive(Debug, Clone, PartialEq, Eq)]
pub struct CreateTopicsRequest {
    pub topics: Vec<CreatableTopic>,
    pub timeout_ms: i32,
    pub validate_only: bool,
    pub unknown_tagged_fields: UnknownTaggedFields,
}

impl Default for CreateTopicsRequest {
    fn default() -> Self {
        Self {
            topics: Vec::new(),
            timeout_ms: 60_000i32,
            validate_only: false,
            unknown_tagged_fields: Default::default(),
        }
    }
}

impl Encode for CreateTopicsRequest {
    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 { { crate::primitives::array::put_array_len(buf, (self.topics).len(), flex); for it in &self.topics { it.encode(buf, version)?; } } }
        if version >= 0 { put_i32(buf, self.timeout_ms) }
        if version >= 1 { put_bool(buf, self.validate_only) }
        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 += { 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 version >= 0 { n += 4; }
        if version >= 1 { 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> Decode<'de> for CreateTopicsRequest {
    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 = { let n = crate::primitives::array::get_array_len(buf, flex)?; let mut v = Vec::with_capacity(n); for _ in 0..n { v.push(CreatableTopic::decode(buf, version)?); } v }; }
        if version >= 0 { out.timeout_ms = get_i32(buf)?; }
        if version >= 1 { out.validate_only = get_bool(buf)?; }
        if flex {
            out.unknown_tagged_fields = read_tagged_fields(buf, |_tag, _payload| {
                Ok(false)
            })?;
        }
        Ok(out)
    }
}

#[derive(Debug, Clone, PartialEq, Eq, Default)]
pub struct CreatableTopic {
    pub name: String,
    pub num_partitions: i32,
    pub replication_factor: i16,
    pub assignments: Vec<CreatableReplicaAssignment>,
    pub configs: Vec<CreatableTopicConfig>,
    pub unknown_tagged_fields: UnknownTaggedFields,
}

impl Encode for CreatableTopic {
    fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
        let flex = version >= 5;
        if version >= 0 { if flex { put_compact_string(buf, &self.name) } else { put_string(buf, &self.name) } }
        if version >= 0 { put_i32(buf, self.num_partitions) }
        if version >= 0 { put_i16(buf, self.replication_factor) }
        if version >= 0 { { crate::primitives::array::put_array_len(buf, (self.assignments).len(), flex); for it in &self.assignments { it.encode(buf, version)?; } } }
        if version >= 0 { { crate::primitives::array::put_array_len(buf, (self.configs).len(), flex); for it in &self.configs { 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 >= 5;
        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 += 4; }
        if version >= 0 { n += 2; }
        if version >= 0 { n += { let prefix = crate::primitives::array::array_len_prefix_len((self.assignments).len(), flex); let body: usize = (self.assignments).iter().map(|it| it.encoded_len(version)).sum(); prefix + body }; }
        if version >= 0 { n += { let prefix = crate::primitives::array::array_len_prefix_len((self.configs).len(), flex); let body: usize = (self.configs).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> Decode<'de> for CreatableTopic {
    fn decode<B: Buf>(buf: &mut B, version: i16) -> Result<Self, ProtocolError> {
        let flex = version >= 5;
        let mut out = Self::default();
        if version >= 0 { out.name = if flex { get_compact_string_owned(buf)? } else { get_string_owned(buf)? }; }
        if version >= 0 { out.num_partitions = get_i32(buf)?; }
        if version >= 0 { out.replication_factor = get_i16(buf)?; }
        if version >= 0 { out.assignments = { let n = crate::primitives::array::get_array_len(buf, flex)?; let mut v = Vec::with_capacity(n); for _ in 0..n { v.push(CreatableReplicaAssignment::decode(buf, version)?); } v }; }
        if version >= 0 { out.configs = { let n = crate::primitives::array::get_array_len(buf, flex)?; let mut v = Vec::with_capacity(n); for _ in 0..n { v.push(CreatableTopicConfig::decode(buf, version)?); } v }; }
        if flex {
            out.unknown_tagged_fields = read_tagged_fields(buf, |_tag, _payload| {
                Ok(false)
            })?;
        }
        Ok(out)
    }
}

#[derive(Debug, Clone, PartialEq, Eq, Default)]
pub struct CreatableReplicaAssignment {
    pub partition_index: i32,
    pub broker_ids: Vec<i32>,
    pub unknown_tagged_fields: UnknownTaggedFields,
}

impl Encode for CreatableReplicaAssignment {
    fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
        let flex = version >= 5;
        if version >= 0 { put_i32(buf, self.partition_index) }
        if version >= 0 { { crate::primitives::array::put_array_len(buf, (self.broker_ids).len(), flex); for it in &self.broker_ids { 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 >= 5;
        let mut n: usize = 0;
        if version >= 0 { n += 4; }
        if version >= 0 { n += { let prefix = crate::primitives::array::array_len_prefix_len((self.broker_ids).len(), flex); let body: usize = (self.broker_ids).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> Decode<'de> for CreatableReplicaAssignment {
    fn decode<B: Buf>(buf: &mut B, version: i16) -> Result<Self, ProtocolError> {
        let flex = version >= 5;
        let mut out = Self::default();
        if version >= 0 { out.partition_index = get_i32(buf)?; }
        if version >= 0 { out.broker_ids = { 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)
    }
}

#[derive(Debug, Clone, PartialEq, Eq, Default)]
pub struct CreatableTopicConfig {
    pub name: String,
    pub value: Option<String>,
    pub unknown_tagged_fields: UnknownTaggedFields,
}

impl Encode for CreatableTopicConfig {
    fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
        let flex = version >= 5;
        if version >= 0 { if flex { put_compact_string(buf, &self.name) } else { put_string(buf, &self.name) } }
        if version >= 0 { if flex { put_compact_nullable_string(buf, self.value.as_deref()) } else { put_nullable_string(buf, self.value.as_deref()) } }
        if flex {
            let tagged = WriteTaggedFields::new();
            tagged.write(buf, &self.unknown_tagged_fields);
        }
        Ok(())
    }
    fn encoded_len(&self, version: i16) -> usize {
        let flex = version >= 5;
        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 += if flex { compact_nullable_string_len(self.value.as_deref()) } else { nullable_string_len(self.value.as_deref()) }; }
        if flex {
            let known_pairs: Vec<(u32, usize)> = Vec::new();
            n += tagged_fields_len(&known_pairs, &self.unknown_tagged_fields);
        }
        n
    }
}

impl<'de> Decode<'de> for CreatableTopicConfig {
    fn decode<B: Buf>(buf: &mut B, version: i16) -> Result<Self, ProtocolError> {
        let flex = version >= 5;
        let mut out = Self::default();
        if version >= 0 { out.name = if flex { get_compact_string_owned(buf)? } else { get_string_owned(buf)? }; }
        if version >= 0 { out.value = if flex { get_compact_nullable_string_owned(buf)? } else { get_nullable_string_owned(buf)? }; }
        if flex {
            out.unknown_tagged_fields = read_tagged_fields(buf, |_tag, _payload| {
                Ok(false)
            })?;
        }
        Ok(out)
    }
}

/// Default JSON payload matching `Self::default()` for JVM oracle differential testing.
/// Only includes fields valid for the given version.
#[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(), ::serde_json::Value::Array(vec![]));
    obj.insert("timeoutMs".to_string(), ::serde_json::json!(60000));
    if version >= 1 {
        obj.insert("validateOnly".to_string(), ::serde_json::Value::Bool(false));
    }
    ::serde_json::Value::Object(obj)
}

impl crate::ProtocolRequest for CreateTopicsRequest {
    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::create_topics_response::CreateTopicsResponse;
}