modify rerank and splitter code directory (#4924)

api/core/indexing_runner.py

@@ -12,7 +12,6 @@ from flask import Flask, current_app
 from flask_login import current_user
 from sqlalchemy.orm.exc import ObjectDeletedError
 
-from core.docstore.dataset_docstore import DatasetDocumentStore
 from core.errors.error import ProviderTokenNotInitError
 from core.llm_generator.llm_generator import LLMGenerator
 from core.model_manager import ModelInstance, ModelManager
@@ -20,12 +19,16 @@ from core.model_runtime.entities.model_entities import ModelType, PriceType
 from core.model_runtime.model_providers.__base.large_language_model import LargeLanguageModel
 from core.model_runtime.model_providers.__base.text_embedding_model import TextEmbeddingModel
 from core.rag.datasource.keyword.keyword_factory import Keyword
+from core.rag.docstore.dataset_docstore import DatasetDocumentStore
 from core.rag.extractor.entity.extract_setting import ExtractSetting
 from core.rag.index_processor.index_processor_base import BaseIndexProcessor
 from core.rag.index_processor.index_processor_factory import IndexProcessorFactory
 from core.rag.models.document import Document
-from core.splitter.fixed_text_splitter import EnhanceRecursiveCharacterTextSplitter, FixedRecursiveCharacterTextSplitter
-from core.splitter.text_splitter import TextSplitter
+from core.rag.splitter.fixed_text_splitter import (
+    EnhanceRecursiveCharacterTextSplitter,
+    FixedRecursiveCharacterTextSplitter,
+)
+from core.rag.splitter.text_splitter import TextSplitter
 from extensions.ext_database import db
 from extensions.ext_redis import redis_client
 from extensions.ext_storage import storage