crabka-protocol 0.1.2

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

use bytes::{Buf, BufMut};

use crate::primitives::fixed::{get_i16, get_i64, put_i16, put_i64};
use crate::primitives::string_bytes::{
    compact_string_len, get_compact_string_owned, get_string_owned,
    put_compact_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 = 25;
pub const MIN_VERSION: i16 = 0;
pub const MAX_VERSION: i16 = 4;
pub const FLEXIBLE_MIN: i16 = 3;

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

#[derive(Debug, Clone, PartialEq, Eq, Default)]
pub struct AddOffsetsToTxnRequest {
    pub transactional_id: String,
    pub producer_id: i64,
    pub producer_epoch: i16,
    pub group_id: String,
    pub unknown_tagged_fields: UnknownTaggedFields,
}

impl Encode for AddOffsetsToTxnRequest {
    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 flex { put_compact_string(buf, &self.transactional_id) } else { put_string(buf, &self.transactional_id) } }
        if version >= 0 { put_i64(buf, self.producer_id) }
        if version >= 0 { put_i16(buf, self.producer_epoch) }
        if version >= 0 { if flex { put_compact_string(buf, &self.group_id) } else { put_string(buf, &self.group_id) } }
        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 flex { compact_string_len(&self.transactional_id) } else { string_len(&self.transactional_id) }; }
        if version >= 0 { n += 8; }
        if version >= 0 { n += 2; }
        if version >= 0 { n += if flex { compact_string_len(&self.group_id) } else { string_len(&self.group_id) }; }
        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 AddOffsetsToTxnRequest {
    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.transactional_id = if flex { get_compact_string_owned(buf)? } else { get_string_owned(buf)? }; }
        if version >= 0 { out.producer_id = get_i64(buf)?; }
        if version >= 0 { out.producer_epoch = get_i16(buf)?; }
        if version >= 0 { out.group_id = 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)
    }
}

/// 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("transactionalId".to_string(), ::serde_json::Value::String(String::new()));
    obj.insert("producerId".to_string(), ::serde_json::json!(0));
    obj.insert("producerEpoch".to_string(), ::serde_json::json!(0));
    obj.insert("groupId".to_string(), ::serde_json::Value::String(String::new()));
    ::serde_json::Value::Object(obj)
}

impl crate::ProtocolRequest for AddOffsetsToTxnRequest {
    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::add_offsets_to_txn_response::AddOffsetsToTxnResponse;
}