dify/api/tasks/enable_segment_to_index_task.py

99 lines
3.7 KiB
Python

import datetime
import logging
import time
import click
from celery import shared_task # type: ignore
from core.rag.index_processor.constant.index_type import IndexType
from core.rag.index_processor.index_processor_factory import IndexProcessorFactory
from core.rag.models.document import ChildDocument, Document
from extensions.ext_database import db
from extensions.ext_redis import redis_client
from models.dataset import DocumentSegment
@shared_task(queue="dataset")
def enable_segment_to_index_task(segment_id: str):
"""
Async enable segment to index
:param segment_id:
Usage: enable_segment_to_index_task.delay(segment_id)
"""
logging.info(click.style(f"Start enable segment to index: {segment_id}", fg="green"))
start_at = time.perf_counter()
segment = db.session.query(DocumentSegment).where(DocumentSegment.id == segment_id).first()
if not segment:
logging.info(click.style(f"Segment not found: {segment_id}", fg="red"))
db.session.close()
return
if segment.status != "completed":
logging.info(click.style(f"Segment is not completed, enable is not allowed: {segment_id}", fg="red"))
db.session.close()
return
indexing_cache_key = f"segment_{segment.id}_indexing"
try:
document = Document(
page_content=segment.content,
metadata={
"doc_id": segment.index_node_id,
"doc_hash": segment.index_node_hash,
"document_id": segment.document_id,
"dataset_id": segment.dataset_id,
},
)
dataset = segment.dataset
if not dataset:
logging.info(click.style(f"Segment {segment.id} has no dataset, pass.", fg="cyan"))
return
dataset_document = segment.document
if not dataset_document:
logging.info(click.style(f"Segment {segment.id} has no document, pass.", fg="cyan"))
return
if not dataset_document.enabled or dataset_document.archived or dataset_document.indexing_status != "completed":
logging.info(click.style(f"Segment {segment.id} document status is invalid, pass.", fg="cyan"))
return
index_processor = IndexProcessorFactory(dataset_document.doc_form).init_index_processor()
if dataset_document.doc_form == IndexType.PARENT_CHILD_INDEX:
child_chunks = segment.get_child_chunks()
if child_chunks:
child_documents = []
for child_chunk in child_chunks:
child_document = ChildDocument(
page_content=child_chunk.content,
metadata={
"doc_id": child_chunk.index_node_id,
"doc_hash": child_chunk.index_node_hash,
"document_id": segment.document_id,
"dataset_id": segment.dataset_id,
},
)
child_documents.append(child_document)
document.children = child_documents
# save vector index
index_processor.load(dataset, [document])
end_at = time.perf_counter()
logging.info(click.style(f"Segment enabled to index: {segment.id} latency: {end_at - start_at}", fg="green"))
except Exception as e:
logging.exception("enable segment to index failed")
segment.enabled = False
segment.disabled_at = datetime.datetime.now(datetime.UTC).replace(tzinfo=None)
segment.status = "error"
segment.error = str(e)
db.session.commit()
finally:
redis_client.delete(indexing_cache_key)
db.session.close()