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Fix encoding bugs in facet databases

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Loïc Lecrenier 2022-09-05 12:50:31 +02:00 committed by Loïc Lecrenier
parent 079ed4a992
commit 982efab88f
1 changed files with 8 additions and 39 deletions
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47
milli/src/heed_codec/facet/new/mod.rs
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@ -5,6 +5,8 @@ use std::marker::PhantomData;
use heed::{BytesDecode, BytesEncode};
use roaring::RoaringBitmap;
use crate::CboRoaringBitmapCodec;
pub mod ordered_f64_codec;
pub mod str_ref;
// TODO: these codecs were quickly written and not fast/resilient enough
@ -35,6 +37,7 @@ impl<'a> FacetKey<Vec<u8>> {
}
}
#[derive(Debug)]
pub struct FacetGroupValue {
pub size: u8,
pub bitmap: RoaringBitmap,
@ -56,7 +59,7 @@ where
v.extend_from_slice(&value.field_id.to_be_bytes());
v.extend_from_slice(&[value.level]);
let bound = T::bytes_encode(&value.left_bound).unwrap();
let bound = T::bytes_encode(&value.left_bound)?;
v.extend_from_slice(&bound);
Some(Cow::Owned(v))
@ -69,9 +72,9 @@ where
type DItem = FacetKey<T::DItem>;
fn bytes_decode(bytes: &'a [u8]) -> Option<Self::DItem> {
let fid = u16::from_be_bytes(<[u8; 2]>::try_from(&bytes[0..=1]).unwrap());
let fid = u16::from_be_bytes(<[u8; 2]>::try_from(&bytes[0..=1]).ok()?);
let level = bytes[2];
let bound = T::bytes_decode(&bytes[3..]).unwrap();
let bound = T::bytes_decode(&bytes[3..])?;
Some(FacetKey { field_id: fid, level, left_bound: bound })
}
}
@ -83,7 +86,7 @@ impl<'a> heed::BytesEncode<'a> for FacetGroupValueCodec {
fn bytes_encode(value: &'a Self::EItem) -> Option<Cow<'a, [u8]>> {
let mut v = vec![];
v.push(value.size);
value.bitmap.serialize_into(&mut v).unwrap();
CboRoaringBitmapCodec::serialize_into(&value.bitmap, &mut v);
Some(Cow::Owned(v))
}
}
@ -91,7 +94,7 @@ impl<'a> heed::BytesDecode<'a> for FacetGroupValueCodec {
type DItem = FacetGroupValue;
fn bytes_decode(bytes: &'a [u8]) -> Option<Self::DItem> {
let size = bytes[0];
let bitmap = RoaringBitmap::deserialize_from(&bytes[1..]).unwrap();
let bitmap = CboRoaringBitmapCodec::deserialize_from(&bytes[1..]).ok()?;
Some(FacetGroupValue { size, bitmap })
}
}
@ -115,37 +118,3 @@ impl<'a> BytesDecode<'a> for MyByteSlice {
Some(bytes)
}
}
// I won't need these ones anymore
// pub struct U16Codec;
// impl<'a> BytesEncode<'a> for U16Codec {
// type EItem = u16;
// fn bytes_encode(item: &'a Self::EItem) -> Option<Cow<'a, [u8]>> {
// Some(Cow::Owned(item.to_be_bytes().to_vec()))
// }
// }
// impl<'a> BytesDecode<'a> for U16Codec {
// type DItem = u16;
// fn bytes_decode(bytes: &'a [u8]) -> Option<Self::DItem> {
// Some(u16::from_be_bytes(bytes[0..=1].try_into().unwrap()))
// }
// }
// pub struct StrCodec;
// impl<'a> BytesEncode<'a> for StrCodec {
// type EItem = &'a str;
// fn bytes_encode(item: &'a &'a str) -> Option<Cow<'a, [u8]>> {
// Some(Cow::Borrowed(item.as_bytes()))
// }
// }
// impl<'a> BytesDecode<'a> for StrCodec {
// type DItem = &'a str;
// fn bytes_decode(bytes: &'a [u8]) -> Option<Self::DItem> {
// let s = std::str::from_utf8(bytes).unwrap();
// Some(s)
// }
// }