crabka-protocol 0.3.4

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::{BufMut, Bytes};

use crate::primitives::fixed::{
    get_bool, get_i8, get_i32, get_i64, put_bool, put_i8, put_i32, put_i64,
};
use crate::primitives::string_bytes::{put_compact_nullable_bytes, put_nullable_bytes};
use crate::primitives::string_bytes_borrowed::{
    get_compact_nullable_bytes_borrowed, get_nullable_bytes_borrowed,
};
use crate::tagged_fields::{
    WriteTaggedFields, encode_to_bytes, read_tagged_fields, tagged_fields_len,
};
use crate::{DecodeBorrow, Encode, ProtocolError, UnknownTaggedFields};
pub const MIN_VERSION: i16 = 0;
pub const MAX_VERSION: i16 = 0;
pub const FLEXIBLE_MIN: i16 = 0;

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

#[derive(Debug, Clone, PartialEq, Eq, Default)]
pub struct RemoteLogSegmentMetadataSnapshotRecord<'a> {
    pub segment_id: crate::primitives::uuid::Uuid,
    pub start_offset: i64,
    pub end_offset: i64,
    pub broker_id: i32,
    pub max_timestamp_ms: i64,
    pub event_timestamp_ms: i64,
    pub segment_leader_epochs: Vec<SegmentLeaderEpochEntry>,
    pub segment_size_in_bytes: i32,
    pub custom_metadata: Option<&'a [u8]>,
    pub remote_log_segment_state: i8,
    pub txn_index_empty: bool,
    pub unknown_tagged_fields: UnknownTaggedFields,
}
impl RemoteLogSegmentMetadataSnapshotRecord<'_> {
    pub fn to_owned (& self) -> crate :: owned :: remote_log_segment_metadata_snapshot_record :: RemoteLogSegmentMetadataSnapshotRecord{
        crate :: owned :: remote_log_segment_metadata_snapshot_record :: RemoteLogSegmentMetadataSnapshotRecord { segment_id : (self . segment_id) , start_offset : (self . start_offset) , end_offset : (self . end_offset) , broker_id : (self . broker_id) , max_timestamp_ms : (self . max_timestamp_ms) , event_timestamp_ms : (self . event_timestamp_ms) , segment_leader_epochs : (self . segment_leader_epochs) . iter () . map (SegmentLeaderEpochEntry::to_owned) . collect () , segment_size_in_bytes : (self . segment_size_in_bytes) , custom_metadata : (self . custom_metadata) . map (Bytes :: copy_from_slice) , remote_log_segment_state : (self . remote_log_segment_state) , txn_index_empty : (self . txn_index_empty) , unknown_tagged_fields : self . unknown_tagged_fields . clone () , }
    }
}
impl Encode for RemoteLogSegmentMetadataSnapshotRecord<'_> {
    fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
        if !(MIN_VERSION..=MAX_VERSION).contains(&version) {
            return Err(ProtocolError::SchemaMismatch(
                "RemoteLogSegmentMetadataSnapshotRecord version out of range",
            ));
        }
        let flex = is_flexible(version);
        if version >= 0 {
            crate::primitives::uuid::put_uuid(buf, self.segment_id);
        }
        if version >= 0 {
            put_i64(buf, self.start_offset);
        }
        if version >= 0 {
            put_i64(buf, self.end_offset);
        }
        if version >= 0 {
            put_i32(buf, self.broker_id);
        }
        if version >= 0 {
            put_i64(buf, self.max_timestamp_ms);
        }
        if version >= 0 {
            put_i64(buf, self.event_timestamp_ms);
        }
        if version >= 0 {
            {
                crate::primitives::array::put_array_len(
                    buf,
                    (self.segment_leader_epochs).len(),
                    flex,
                );
                for it in &self.segment_leader_epochs {
                    it.encode(buf, version)?;
                }
            }
        }
        if version >= 0 {
            put_i32(buf, self.segment_size_in_bytes);
        }
        if version >= 0 {
            if flex {
                put_compact_nullable_bytes(buf, self.custom_metadata);
            } else {
                put_nullable_bytes(buf, self.custom_metadata);
            }
        }
        if version >= 0 {
            put_i8(buf, self.remote_log_segment_state);
        }
        if flex {
            let mut tagged = WriteTaggedFields::new();
            if !(crate::codegen_helpers::is_default(&self.txn_index_empty)) {
                let payload = encode_to_bytes(1, |b| {
                    put_bool(b, self.txn_index_empty);
                    Ok(())
                });
                tagged.add(0, payload);
            }
            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 += 16;
        }
        if version >= 0 {
            n += 8;
        }
        if version >= 0 {
            n += 8;
        }
        if version >= 0 {
            n += 4;
        }
        if version >= 0 {
            n += 8;
        }
        if version >= 0 {
            n += 8;
        }
        if version >= 0 {
            n += {
                let prefix = crate::primitives::array::array_len_prefix_len(
                    (self.segment_leader_epochs).len(),
                    flex,
                );
                let body: usize = (self.segment_leader_epochs)
                    .iter()
                    .map(|it| it.encoded_len(version))
                    .sum();
                prefix + body
            };
        }
        if version >= 0 {
            n += 4;
        }
        if version >= 0 {
            n += match self.custom_metadata {
                None => {
                    if flex {
                        1
                    } else {
                        4
                    }
                }
                Some(b) => {
                    if flex {
                        crate::primitives::varint::uvarint_len(u32::try_from(b.len() + 1).unwrap())
                            + b.len()
                    } else {
                        4 + b.len()
                    }
                }
            };
        }
        if version >= 0 {
            n += 1;
        }
        if flex {
            let mut known_pairs: Vec<(u32, usize)> = Vec::new();
            if !(crate::codegen_helpers::is_default(&self.txn_index_empty)) {
                known_pairs.push((0, 1));
            }
            n += tagged_fields_len(&known_pairs, &self.unknown_tagged_fields);
        }
        n
    }
}
impl<'de> DecodeBorrow<'de> for RemoteLogSegmentMetadataSnapshotRecord<'de> {
    fn decode_borrow(buf: &mut &'de [u8], version: i16) -> Result<Self, ProtocolError> {
        if !(MIN_VERSION..=MAX_VERSION).contains(&version) {
            return Err(ProtocolError::SchemaMismatch(
                "RemoteLogSegmentMetadataSnapshotRecord version out of range",
            ));
        }
        let flex = is_flexible(version);
        let mut out = Self::default();
        if version >= 0 {
            out.segment_id = crate::primitives::uuid::get_uuid(buf)?;
        }
        if version >= 0 {
            out.start_offset = get_i64(buf)?;
        }
        if version >= 0 {
            out.end_offset = get_i64(buf)?;
        }
        if version >= 0 {
            out.broker_id = get_i32(buf)?;
        }
        if version >= 0 {
            out.max_timestamp_ms = get_i64(buf)?;
        }
        if version >= 0 {
            out.event_timestamp_ms = get_i64(buf)?;
        }
        if version >= 0 {
            out.segment_leader_epochs = {
                let n = crate::primitives::array::get_array_len(buf, flex)?;
                let mut v = Vec::with_capacity(n);
                for _ in 0..n {
                    v.push(SegmentLeaderEpochEntry::decode_borrow(buf, version)?);
                }
                v
            };
        }
        if version >= 0 {
            out.segment_size_in_bytes = get_i32(buf)?;
        }
        if version >= 0 {
            out.custom_metadata = if flex {
                get_compact_nullable_bytes_borrowed(buf)?
            } else {
                get_nullable_bytes_borrowed(buf)?
            };
        }
        if version >= 0 {
            out.remote_log_segment_state = get_i8(buf)?;
        }
        if flex {
            let mut tag_txn_index_empty = None;
            out.unknown_tagged_fields = read_tagged_fields(buf, |tag, payload| match tag {
                0 => {
                    tag_txn_index_empty = Some({
                        let b: &mut &[u8] = payload;
                        get_bool(b)?
                    });
                    Ok(true)
                }
                _ => Ok(false),
            })?;
            if let Some(v) = tag_txn_index_empty {
                out.txn_index_empty = v;
            }
        }
        Ok(out)
    }
}
#[cfg(test)]
impl RemoteLogSegmentMetadataSnapshotRecord<'_> {
    #[must_use]
    pub fn populated(version: i16) -> Self {
        let mut m = Self::default();
        if version >= 0 {
            m.segment_id = crate::primitives::uuid::Uuid([1u8; 16]);
        }
        if version >= 0 {
            m.start_offset = 1i64;
        }
        if version >= 0 {
            m.end_offset = 1i64;
        }
        if version >= 0 {
            m.broker_id = 1i32;
        }
        if version >= 0 {
            m.max_timestamp_ms = 1i64;
        }
        if version >= 0 {
            m.event_timestamp_ms = 1i64;
        }
        if version >= 0 {
            m.segment_leader_epochs = vec![SegmentLeaderEpochEntry::populated(version)];
        }
        if version >= 0 {
            m.segment_size_in_bytes = 1i32;
        }
        if version >= 0 {
            m.custom_metadata = Some(&b"x"[..]);
        }
        if version >= 0 {
            m.remote_log_segment_state = 1i8;
        }
        if version >= 0 {
            m.txn_index_empty = true;
        }
        m
    }
}
#[derive(Debug, Clone, PartialEq, Eq, Default)]
pub struct SegmentLeaderEpochEntry {
    pub leader_epoch: i32,
    pub offset: i64,
    pub unknown_tagged_fields: UnknownTaggedFields,
}
impl SegmentLeaderEpochEntry {
    pub fn to_owned(
        &self,
    ) -> crate::owned::remote_log_segment_metadata_snapshot_record::SegmentLeaderEpochEntry {
        crate::owned::remote_log_segment_metadata_snapshot_record::SegmentLeaderEpochEntry {
            leader_epoch: (self.leader_epoch),
            offset: (self.offset),
            unknown_tagged_fields: self.unknown_tagged_fields.clone(),
        }
    }
}
impl Encode for SegmentLeaderEpochEntry {
    fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
        let flex = version >= 0;
        if version >= 0 {
            put_i32(buf, self.leader_epoch);
        }
        if version >= 0 {
            put_i64(buf, self.offset);
        }
        if flex {
            let tagged = WriteTaggedFields::new();
            tagged.write(buf, &self.unknown_tagged_fields);
        }
        Ok(())
    }
    fn encoded_len(&self, version: i16) -> usize {
        let flex = version >= 0;
        let mut n: usize = 0;
        if version >= 0 {
            n += 4;
        }
        if version >= 0 {
            n += 8;
        }
        if flex {
            let known_pairs: Vec<(u32, usize)> = Vec::new();
            n += tagged_fields_len(&known_pairs, &self.unknown_tagged_fields);
        }
        n
    }
}
impl<'de> DecodeBorrow<'de> for SegmentLeaderEpochEntry {
    fn decode_borrow(buf: &mut &'de [u8], version: i16) -> Result<Self, ProtocolError> {
        let flex = version >= 0;
        let mut out = Self::default();
        if version >= 0 {
            out.leader_epoch = get_i32(buf)?;
        }
        if version >= 0 {
            out.offset = get_i64(buf)?;
        }
        if flex {
            out.unknown_tagged_fields = read_tagged_fields(buf, |_tag, _payload| Ok(false))?;
        }
        Ok(out)
    }
}
#[cfg(test)]
impl SegmentLeaderEpochEntry {
    #[must_use]
    pub fn populated(version: i16) -> Self {
        let mut m = Self::default();
        if version >= 0 {
            m.leader_epoch = 1i32;
        }
        if version >= 0 {
            m.offset = 1i64;
        }
        m
    }
}