321 lines
13 KiB
Rust
321 lines
13 KiB
Rust
use std::borrow::Cow;
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use std::collections::BTreeMap;
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use chrono::{DateTime, Utc};
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use heed::types::{ByteSlice, OwnedType, SerdeBincode, Str, CowSlice};
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use meilisearch_schema::{FieldId, Schema};
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use meilisearch_types::DocumentId;
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use sdset::Set;
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use crate::database::MainT;
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use crate::{RankedMap, MResult};
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use crate::settings::RankingRule;
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use crate::{FstSetCow, FstMapCow};
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use super::{CowSet, DocumentsIds};
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const ATTRIBUTES_FOR_FACETING_KEY: &str = "attributes-for-faceting";
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const CREATED_AT_KEY: &str = "created-at";
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const CUSTOMS_KEY: &str = "customs";
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const DISTINCT_ATTRIBUTE_KEY: &str = "distinct-attribute";
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const EXTERNAL_DOCIDS_KEY: &str = "external-docids";
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const FIELDS_DISTRIBUTION_KEY: &str = "fields-distribution";
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const INTERNAL_DOCIDS_KEY: &str = "internal-docids";
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const NAME_KEY: &str = "name";
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const NUMBER_OF_DOCUMENTS_KEY: &str = "number-of-documents";
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const RANKED_MAP_KEY: &str = "ranked-map";
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const RANKING_RULES_KEY: &str = "ranking-rules";
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const SCHEMA_KEY: &str = "schema";
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const SORTED_DOCUMENT_IDS_CACHE_KEY: &str = "sorted-document-ids-cache";
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const STOP_WORDS_KEY: &str = "stop-words";
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const SYNONYMS_KEY: &str = "synonyms";
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const UPDATED_AT_KEY: &str = "updated-at";
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const WORDS_KEY: &str = "words";
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pub type FreqsMap = BTreeMap<String, usize>;
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type SerdeFreqsMap = SerdeBincode<FreqsMap>;
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type SerdeDatetime = SerdeBincode<DateTime<Utc>>;
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#[derive(Copy, Clone)]
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pub struct Main {
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pub(crate) main: heed::PolyDatabase,
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}
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impl Main {
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pub fn clear(self, writer: &mut heed::RwTxn<MainT>) -> MResult<()> {
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Ok(self.main.clear(writer)?)
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}
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pub fn put_name(self, writer: &mut heed::RwTxn<MainT>, name: &str) -> MResult<()> {
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Ok(self.main.put::<_, Str, Str>(writer, NAME_KEY, name)?)
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}
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pub fn name(self, reader: &heed::RoTxn<MainT>) -> MResult<Option<String>> {
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Ok(self
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.main
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.get::<_, Str, Str>(reader, NAME_KEY)?
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.map(|name| name.to_owned()))
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}
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pub fn put_created_at(self, writer: &mut heed::RwTxn<MainT>) -> MResult<()> {
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Ok(self.main.put::<_, Str, SerdeDatetime>(writer, CREATED_AT_KEY, &Utc::now())?)
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}
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pub fn created_at(self, reader: &heed::RoTxn<MainT>) -> MResult<Option<DateTime<Utc>>> {
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Ok(self.main.get::<_, Str, SerdeDatetime>(reader, CREATED_AT_KEY)?)
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}
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pub fn put_updated_at(self, writer: &mut heed::RwTxn<MainT>) -> MResult<()> {
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Ok(self.main.put::<_, Str, SerdeDatetime>(writer, UPDATED_AT_KEY, &Utc::now())?)
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}
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pub fn updated_at(self, reader: &heed::RoTxn<MainT>) -> MResult<Option<DateTime<Utc>>> {
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Ok(self.main.get::<_, Str, SerdeDatetime>(reader, UPDATED_AT_KEY)?)
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}
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pub fn put_internal_docids(self, writer: &mut heed::RwTxn<MainT>, ids: &sdset::Set<DocumentId>) -> MResult<()> {
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Ok(self.main.put::<_, Str, DocumentsIds>(writer, INTERNAL_DOCIDS_KEY, ids)?)
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}
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pub fn internal_docids<'txn>(self, reader: &'txn heed::RoTxn<MainT>) -> MResult<Cow<'txn, sdset::Set<DocumentId>>> {
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match self.main.get::<_, Str, DocumentsIds>(reader, INTERNAL_DOCIDS_KEY)? {
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Some(ids) => Ok(ids),
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None => Ok(Cow::default()),
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}
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}
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pub fn merge_internal_docids(self, writer: &mut heed::RwTxn<MainT>, new_ids: &sdset::Set<DocumentId>) -> MResult<()> {
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use sdset::SetOperation;
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// We do an union of the old and new internal ids.
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let internal_docids = self.internal_docids(writer)?;
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let internal_docids = sdset::duo::Union::new(&internal_docids, new_ids).into_set_buf();
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Ok(self.put_internal_docids(writer, &internal_docids)?)
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}
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pub fn remove_internal_docids(self, writer: &mut heed::RwTxn<MainT>, ids: &sdset::Set<DocumentId>) -> MResult<()> {
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use sdset::SetOperation;
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// We do a difference of the old and new internal ids.
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let internal_docids = self.internal_docids(writer)?;
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let internal_docids = sdset::duo::Difference::new(&internal_docids, ids).into_set_buf();
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Ok(self.put_internal_docids(writer, &internal_docids)?)
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}
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pub fn put_external_docids<A>(self, writer: &mut heed::RwTxn<MainT>, ids: &fst::Map<A>) -> MResult<()>
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where A: AsRef<[u8]>,
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{
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Ok(self.main.put::<_, Str, ByteSlice>(writer, EXTERNAL_DOCIDS_KEY, ids.as_fst().as_bytes())?)
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}
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pub fn merge_external_docids<A>(self, writer: &mut heed::RwTxn<MainT>, new_docids: &fst::Map<A>) -> MResult<()>
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where A: AsRef<[u8]>,
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{
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use fst::{Streamer, IntoStreamer};
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// Do an union of the old and the new set of external docids.
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let external_docids = self.external_docids(writer)?;
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let mut op = external_docids.op().add(new_docids.into_stream()).r#union();
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let mut build = fst::MapBuilder::memory();
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while let Some((docid, values)) = op.next() {
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build.insert(docid, values[0].value).unwrap();
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}
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drop(op);
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let external_docids = build.into_map();
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Ok(self.put_external_docids(writer, &external_docids)?)
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}
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pub fn remove_external_docids<A>(self, writer: &mut heed::RwTxn<MainT>, ids: &fst::Map<A>) -> MResult<()>
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where A: AsRef<[u8]>,
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{
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use fst::{Streamer, IntoStreamer};
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// Do an union of the old and the new set of external docids.
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let external_docids = self.external_docids(writer)?;
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let mut op = external_docids.op().add(ids.into_stream()).difference();
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let mut build = fst::MapBuilder::memory();
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while let Some((docid, values)) = op.next() {
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build.insert(docid, values[0].value).unwrap();
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}
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drop(op);
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let external_docids = build.into_map();
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self.put_external_docids(writer, &external_docids)
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}
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pub fn external_docids<'a>(self, reader: &'a heed::RoTxn<'a, MainT>) -> MResult<FstMapCow> {
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match self.main.get::<_, Str, ByteSlice>(reader, EXTERNAL_DOCIDS_KEY)? {
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Some(bytes) => Ok(fst::Map::new(bytes).unwrap().map_data(Cow::Borrowed).unwrap()),
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None => Ok(fst::Map::default().map_data(Cow::Owned).unwrap()),
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}
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}
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pub fn external_to_internal_docid(self, reader: &heed::RoTxn<MainT>, external_docid: &str) -> MResult<Option<DocumentId>> {
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let external_ids = self.external_docids(reader)?;
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Ok(external_ids.get(external_docid).map(|id| DocumentId(id as u32)))
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}
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pub fn words_fst<'a>(self, reader: &'a heed::RoTxn<'a, MainT>) -> MResult<FstSetCow> {
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match self.main.get::<_, Str, ByteSlice>(reader, WORDS_KEY)? {
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Some(bytes) => Ok(fst::Set::new(bytes).unwrap().map_data(Cow::Borrowed).unwrap()),
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None => Ok(fst::Set::default().map_data(Cow::Owned).unwrap()),
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}
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}
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pub fn put_words_fst<A: AsRef<[u8]>>(self, writer: &mut heed::RwTxn<MainT>, fst: &fst::Set<A>) -> MResult<()> {
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Ok(self.main.put::<_, Str, ByteSlice>(writer, WORDS_KEY, fst.as_fst().as_bytes())?)
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}
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pub fn put_sorted_document_ids_cache(self, writer: &mut heed::RwTxn<MainT>, documents_ids: &[DocumentId]) -> MResult<()> {
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Ok(self.main.put::<_, Str, CowSlice<DocumentId>>(writer, SORTED_DOCUMENT_IDS_CACHE_KEY, documents_ids)?)
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}
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pub fn sorted_document_ids_cache<'a>(self, reader: &'a heed::RoTxn<'a, MainT>) -> MResult<Option<Cow<[DocumentId]>>> {
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Ok(self.main.get::<_, Str, CowSlice<DocumentId>>(reader, SORTED_DOCUMENT_IDS_CACHE_KEY)?)
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}
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pub fn put_schema(self, writer: &mut heed::RwTxn<MainT>, schema: &Schema) -> MResult<()> {
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Ok(self.main.put::<_, Str, SerdeBincode<Schema>>(writer, SCHEMA_KEY, schema)?)
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}
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pub fn schema(self, reader: &heed::RoTxn<MainT>) -> MResult<Option<Schema>> {
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Ok(self.main.get::<_, Str, SerdeBincode<Schema>>(reader, SCHEMA_KEY)?)
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}
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pub fn delete_schema(self, writer: &mut heed::RwTxn<MainT>) -> MResult<bool> {
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Ok(self.main.delete::<_, Str>(writer, SCHEMA_KEY)?)
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}
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pub fn put_ranked_map(self, writer: &mut heed::RwTxn<MainT>, ranked_map: &RankedMap) -> MResult<()> {
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Ok(self.main.put::<_, Str, SerdeBincode<RankedMap>>(writer, RANKED_MAP_KEY, &ranked_map)?)
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}
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pub fn ranked_map(self, reader: &heed::RoTxn<MainT>) -> MResult<Option<RankedMap>> {
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Ok(self.main.get::<_, Str, SerdeBincode<RankedMap>>(reader, RANKED_MAP_KEY)?)
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}
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pub fn put_synonyms_fst<A: AsRef<[u8]>>(self, writer: &mut heed::RwTxn<MainT>, fst: &fst::Set<A>) -> MResult<()> {
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let bytes = fst.as_fst().as_bytes();
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Ok(self.main.put::<_, Str, ByteSlice>(writer, SYNONYMS_KEY, bytes)?)
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}
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pub(crate) fn synonyms_fst<'a>(self, reader: &'a heed::RoTxn<'a, MainT>) -> MResult<FstSetCow> {
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match self.main.get::<_, Str, ByteSlice>(reader, SYNONYMS_KEY)? {
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Some(bytes) => Ok(fst::Set::new(bytes).unwrap().map_data(Cow::Borrowed).unwrap()),
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None => Ok(fst::Set::default().map_data(Cow::Owned).unwrap()),
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}
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}
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pub fn synonyms(self, reader: &heed::RoTxn<MainT>) -> MResult<Vec<String>> {
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let synonyms = self
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.synonyms_fst(&reader)?
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.stream()
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.into_strs()?;
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Ok(synonyms)
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}
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pub fn put_stop_words_fst<A: AsRef<[u8]>>(self, writer: &mut heed::RwTxn<MainT>, fst: &fst::Set<A>) -> MResult<()> {
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let bytes = fst.as_fst().as_bytes();
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Ok(self.main.put::<_, Str, ByteSlice>(writer, STOP_WORDS_KEY, bytes)?)
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}
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pub(crate) fn stop_words_fst<'a>(self, reader: &'a heed::RoTxn<'a, MainT>) -> MResult<FstSetCow> {
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match self.main.get::<_, Str, ByteSlice>(reader, STOP_WORDS_KEY)? {
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Some(bytes) => Ok(fst::Set::new(bytes).unwrap().map_data(Cow::Borrowed).unwrap()),
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None => Ok(fst::Set::default().map_data(Cow::Owned).unwrap()),
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}
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}
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pub fn stop_words(self, reader: &heed::RoTxn<MainT>) -> MResult<Vec<String>> {
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let stop_word_list = self
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.stop_words_fst(reader)?
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.stream()
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.into_strs()?;
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Ok(stop_word_list)
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}
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pub fn put_number_of_documents<F>(self, writer: &mut heed::RwTxn<MainT>, f: F) -> MResult<u64>
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where
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F: Fn(u64) -> u64,
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{
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let new = self.number_of_documents(&*writer).map(f)?;
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self.main
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.put::<_, Str, OwnedType<u64>>(writer, NUMBER_OF_DOCUMENTS_KEY, &new)?;
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Ok(new)
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}
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pub fn number_of_documents(self, reader: &heed::RoTxn<MainT>) -> MResult<u64> {
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match self
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.main
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.get::<_, Str, OwnedType<u64>>(reader, NUMBER_OF_DOCUMENTS_KEY)? {
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Some(value) => Ok(value),
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None => Ok(0),
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}
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}
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pub fn put_fields_distribution(
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self,
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writer: &mut heed::RwTxn<MainT>,
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fields_frequency: &FreqsMap,
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) -> MResult<()> {
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Ok(self.main.put::<_, Str, SerdeFreqsMap>(writer, FIELDS_DISTRIBUTION_KEY, fields_frequency)?)
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}
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pub fn fields_distribution(&self, reader: &heed::RoTxn<MainT>) -> MResult<Option<FreqsMap>> {
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match self
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.main
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.get::<_, Str, SerdeFreqsMap>(reader, FIELDS_DISTRIBUTION_KEY)?
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{
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Some(freqs) => Ok(Some(freqs)),
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None => Ok(None),
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}
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}
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pub fn attributes_for_faceting<'txn>(&self, reader: &'txn heed::RoTxn<MainT>) -> MResult<Option<Cow<'txn, Set<FieldId>>>> {
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Ok(self.main.get::<_, Str, CowSet<FieldId>>(reader, ATTRIBUTES_FOR_FACETING_KEY)?)
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}
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pub fn put_attributes_for_faceting(self, writer: &mut heed::RwTxn<MainT>, attributes: &Set<FieldId>) -> MResult<()> {
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Ok(self.main.put::<_, Str, CowSet<FieldId>>(writer, ATTRIBUTES_FOR_FACETING_KEY, attributes)?)
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}
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pub fn delete_attributes_for_faceting(self, writer: &mut heed::RwTxn<MainT>) -> MResult<bool> {
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Ok(self.main.delete::<_, Str>(writer, ATTRIBUTES_FOR_FACETING_KEY)?)
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}
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pub fn ranking_rules(&self, reader: &heed::RoTxn<MainT>) -> MResult<Option<Vec<RankingRule>>> {
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Ok(self.main.get::<_, Str, SerdeBincode<Vec<RankingRule>>>(reader, RANKING_RULES_KEY)?)
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}
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pub fn put_ranking_rules(self, writer: &mut heed::RwTxn<MainT>, value: &[RankingRule]) -> MResult<()> {
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Ok(self.main.put::<_, Str, SerdeBincode<Vec<RankingRule>>>(writer, RANKING_RULES_KEY, &value.to_vec())?)
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}
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pub fn delete_ranking_rules(self, writer: &mut heed::RwTxn<MainT>) -> MResult<bool> {
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Ok(self.main.delete::<_, Str>(writer, RANKING_RULES_KEY)?)
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}
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pub fn distinct_attribute(&self, reader: &heed::RoTxn<MainT>) -> MResult<Option<FieldId>> {
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match self.main.get::<_, Str, OwnedType<u16>>(reader, DISTINCT_ATTRIBUTE_KEY)? {
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Some(value) => Ok(Some(FieldId(value.to_owned()))),
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None => Ok(None),
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}
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}
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pub fn put_distinct_attribute(self, writer: &mut heed::RwTxn<MainT>, value: FieldId) -> MResult<()> {
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Ok(self.main.put::<_, Str, OwnedType<u16>>(writer, DISTINCT_ATTRIBUTE_KEY, &value.0)?)
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}
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pub fn delete_distinct_attribute(self, writer: &mut heed::RwTxn<MainT>) -> MResult<bool> {
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Ok(self.main.delete::<_, Str>(writer, DISTINCT_ATTRIBUTE_KEY)?)
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}
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pub fn put_customs(self, writer: &mut heed::RwTxn<MainT>, customs: &[u8]) -> MResult<()> {
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Ok(self.main.put::<_, Str, ByteSlice>(writer, CUSTOMS_KEY, customs)?)
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}
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pub fn customs<'txn>(self, reader: &'txn heed::RoTxn<MainT>) -> MResult<Option<&'txn [u8]>> {
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Ok(self.main.get::<_, Str, ByteSlice>(reader, CUSTOMS_KEY)?)
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}
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}
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