mirror of
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89 lines
2.7 KiB
Python
89 lines
2.7 KiB
Python
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import datetime
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import logging
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import time
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import click
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from celery import shared_task
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from llama_index.data_structs import Node
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from llama_index.data_structs.node_v2 import DocumentRelationship
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from werkzeug.exceptions import NotFound
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from core.index.keyword_table_index import KeywordTableIndex
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from core.index.vector_index import VectorIndex
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from extensions.ext_database import db
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from extensions.ext_redis import redis_client
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from models.dataset import DocumentSegment
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@shared_task
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def add_segment_to_index_task(segment_id: str):
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"""
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Async Add segment to index
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:param segment_id:
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Usage: add_segment_to_index.delay(segment_id)
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"""
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logging.info(click.style('Start add segment to index: {}'.format(segment_id), fg='green'))
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start_at = time.perf_counter()
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segment = db.session.query(DocumentSegment).filter(DocumentSegment.id == segment_id).first()
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if not segment:
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raise NotFound('Segment not found')
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if segment.status != 'completed':
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return
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indexing_cache_key = 'segment_{}_indexing'.format(segment.id)
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try:
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relationships = {
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DocumentRelationship.SOURCE: segment.document_id,
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}
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previous_segment = segment.previous_segment
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if previous_segment:
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relationships[DocumentRelationship.PREVIOUS] = previous_segment.index_node_id
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next_segment = segment.next_segment
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if next_segment:
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relationships[DocumentRelationship.NEXT] = next_segment.index_node_id
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node = Node(
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doc_id=segment.index_node_id,
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doc_hash=segment.index_node_hash,
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text=segment.content,
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extra_info=None,
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node_info=None,
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relationships=relationships
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)
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dataset = segment.dataset
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if not dataset:
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raise Exception('Segment has no dataset')
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vector_index = VectorIndex(dataset=dataset)
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keyword_table_index = KeywordTableIndex(dataset=dataset)
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# save vector index
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if dataset.indexing_technique == "high_quality":
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vector_index.add_nodes(
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nodes=[node],
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duplicate_check=True
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)
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# save keyword index
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keyword_table_index.add_nodes([node])
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end_at = time.perf_counter()
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logging.info(click.style('Segment added to index: {} latency: {}'.format(segment.id, end_at - start_at), fg='green'))
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except Exception as e:
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logging.exception("add segment to index failed")
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segment.enabled = False
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segment.disabled_at = datetime.datetime.utcnow()
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segment.status = 'error'
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segment.error = str(e)
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db.session.commit()
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finally:
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redis_client.delete(indexing_cache_key)
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