50 lines
1.4 KiB
Rust
50 lines
1.4 KiB
Rust
use super::BEU64;
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use crate::DocumentId;
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use heed::types::{ByteSlice, OwnedType};
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use heed::Result as ZResult;
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use std::sync::Arc;
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#[derive(Copy, Clone)]
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pub struct DocsWords {
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pub(crate) docs_words: heed::Database<OwnedType<BEU64>, ByteSlice>,
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}
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impl DocsWords {
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pub fn put_doc_words(
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self,
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writer: &mut heed::RwTxn,
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document_id: DocumentId,
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words: &fst::Set,
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) -> ZResult<()> {
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let document_id = BEU64::new(document_id.0);
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let bytes = words.as_fst().as_bytes();
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self.docs_words.put(writer, &document_id, bytes)
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}
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pub fn del_doc_words(self, writer: &mut heed::RwTxn, document_id: DocumentId) -> ZResult<bool> {
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let document_id = BEU64::new(document_id.0);
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self.docs_words.delete(writer, &document_id)
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}
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pub fn clear(self, writer: &mut heed::RwTxn) -> ZResult<()> {
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self.docs_words.clear(writer)
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}
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pub fn doc_words(
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self,
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reader: &heed::RoTxn,
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document_id: DocumentId,
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) -> ZResult<Option<fst::Set>> {
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let document_id = BEU64::new(document_id.0);
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match self.docs_words.get(reader, &document_id)? {
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Some(bytes) => {
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let len = bytes.len();
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let bytes = Arc::new(bytes.to_owned());
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let fst = fst::raw::Fst::from_shared_bytes(bytes, 0, len).unwrap();
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Ok(Some(fst::Set::from(fst)))
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}
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None => Ok(None),
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}
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}
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}
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