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remove milli/src/update/new/extract/extract_word_docids.rs

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ManyTheFish 2024-09-04 10:28:31 +02:00
parent 6a399556b5
commit 781a186f75
1 changed files with 0 additions and 168 deletions
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168
milli/src/update/new/extract/extract_word_docids.rs
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@ -1,168 +0,0 @@
use std::fs::File;
use charabia::TokenizerBuilder;
use grenad::Merger;
use heed::RoTxn;
use rayon::iter::{IntoParallelIterator, ParallelIterator};
use super::cache::CachedSorter;
use super::tokenize_document::DocumentTokenizer;
use crate::update::new::{DocumentChange, ItemsPool};
use crate::update::{create_sorter, GrenadParameters, MergeDeladdCboRoaringBitmaps};
use crate::{GlobalFieldsIdsMap, Index, Result, MAX_POSITION_PER_ATTRIBUTE};
pub trait SearchableExtractor {
fn run_extraction(
index: &Index,
fields_ids_map: &GlobalFieldsIdsMap,
indexer: GrenadParameters,
document_changes: impl IntoParallelIterator<Item = Result<DocumentChange>>,
) -> Result<Merger<File, MergeDeladdCboRoaringBitmaps>> {
let max_memory = indexer.max_memory_by_thread();
let rtxn = index.read_txn()?;
let stop_words = index.stop_words(&rtxn)?;
let allowed_separators = index.allowed_separators(&rtxn)?;
let allowed_separators: Option<Vec<_>> =
allowed_separators.as_ref().map(|s| s.iter().map(String::as_str).collect());
let dictionary = index.dictionary(&rtxn)?;
let dictionary: Option<Vec<_>> =
dictionary.as_ref().map(|s| s.iter().map(String::as_str).collect());
let builder = tokenizer_builder(
stop_words.as_ref(),
allowed_separators.as_deref(),
dictionary.as_deref(),
);
let tokenizer = builder.into_tokenizer();
let user_defined_searchable_fields = index.user_defined_searchable_fields(&rtxn)?;
let localized_attributes_rules =
index.localized_attributes_rules(&rtxn)?.unwrap_or_default();
let document_tokenizer = DocumentTokenizer {
tokenizer: &tokenizer,
searchable_attributes: user_defined_searchable_fields.as_deref(),
localized_attributes_rules: &localized_attributes_rules,
max_positions_per_attributes: MAX_POSITION_PER_ATTRIBUTE,
};
let context_pool = ItemsPool::new(|| {
Ok((
index.read_txn()?,
&document_tokenizer,
fields_ids_map.clone(),
CachedSorter::new(
// TODO use a better value
100.try_into().unwrap(),
create_sorter(
grenad::SortAlgorithm::Stable,
MergeDeladdCboRoaringBitmaps,
indexer.chunk_compression_type,
indexer.chunk_compression_level,
indexer.max_nb_chunks,
max_memory,
),
),
))
});
document_changes.into_par_iter().try_for_each(|document_change| {
context_pool.with(|(rtxn, document_tokenizer, fields_ids_map, cached_sorter)| {
Self::extract_document_change(
&*rtxn,
index,
document_tokenizer,
fields_ids_map,
cached_sorter,
document_change?,
)
})
})?;
let mut builder = grenad::MergerBuilder::new(MergeDeladdCboRoaringBitmaps);
for (_rtxn, _tokenizer, _fields_ids_map, cache) in context_pool.into_items() {
let sorter = cache.into_sorter()?;
let readers = sorter.into_reader_cursors()?;
builder.extend(readers);
}
Ok(builder.build())
}
fn extract_document_change(
rtxn: &RoTxn,
index: &Index,
document_tokenizer: &DocumentTokenizer,
fields_ids_map: &mut GlobalFieldsIdsMap,
cached_sorter: &mut CachedSorter<MergeDeladdCboRoaringBitmaps>,
document_change: DocumentChange,
) -> Result<()>;
}
pub struct WordDocidsExtractor;
impl SearchableExtractor for WordDocidsExtractor {
fn extract_document_change(
rtxn: &RoTxn,
index: &Index,
document_tokenizer: &DocumentTokenizer,
fields_ids_map: &mut GlobalFieldsIdsMap,
cached_sorter: &mut CachedSorter<MergeDeladdCboRoaringBitmaps>,
document_change: DocumentChange,
) -> crate::Result<()> {
match document_change {
DocumentChange::Deletion(inner) => {
let mut token_fn = |_fid, _pos: u16, word: &str| {
cached_sorter.insert_del_u32(word.as_bytes(), inner.docid()).unwrap();
};
document_tokenizer.tokenize_document(
inner.current(rtxn, index)?.unwrap(),
fields_ids_map,
&mut token_fn,
)?;
}
DocumentChange::Update(inner) => {
let mut token_fn = |_fid, _pos, word: &str| {
cached_sorter.insert_del_u32(word.as_bytes(), inner.docid()).unwrap();
};
document_tokenizer.tokenize_document(
inner.current(rtxn, index)?.unwrap(),
fields_ids_map,
&mut token_fn,
)?;
let mut token_fn = |_fid, _pos, word: &str| {
cached_sorter.insert_add_u32(word.as_bytes(), inner.docid()).unwrap();
};
document_tokenizer.tokenize_document(inner.new(), fields_ids_map, &mut token_fn)?;
}
DocumentChange::Insertion(inner) => {
let mut token_fn = |_fid, _pos, word: &str| {
cached_sorter.insert_add_u32(word.as_bytes(), inner.docid()).unwrap();
};
document_tokenizer.tokenize_document(inner.new(), fields_ids_map, &mut token_fn)?;
}
}
Ok(())
}
}
/// Factorize tokenizer building.
fn tokenizer_builder<'a>(
stop_words: Option<&'a fst::Set<&'a [u8]>>,
allowed_separators: Option<&'a [&str]>,
dictionary: Option<&'a [&str]>,
) -> TokenizerBuilder<'a, &'a [u8]> {
let mut tokenizer_builder = TokenizerBuilder::new();
if let Some(stop_words) = stop_words {
tokenizer_builder.stop_words(stop_words);
}
if let Some(dictionary) = dictionary {
tokenizer_builder.words_dict(dictionary);
}
if let Some(separators) = allowed_separators {
tokenizer_builder.separators(separators);
}
tokenizer_builder
}