app/components/node_store/component.py

import logging

from llama_index.storage.docstore import BaseDocumentStore, SimpleDocumentStore
from llama_index.storage.index_store import SimpleIndexStore
from llama_index.storage.index_store.types import BaseIndexStore

from app.paths import local_data_path

logger = logging.getLogger(__name__)


class NodeStoreComponent:
    index_store: BaseIndexStore
    doc_store: BaseDocumentStore

    def __init__(self) -> None:
        try:
            self.index_store = SimpleIndexStore.from_persist_dir(
                persist_dir=str(local_data_path)
            )
        except FileNotFoundError:
            logger.debug("Local index store not found, creating a new one")
            self.index_store = SimpleIndexStore()

        try:
            self.doc_store = SimpleDocumentStore.from_persist_dir(
                persist_dir=str(local_data_path)
            )
        except FileNotFoundError:
            logger.debug("Local document store not found, creating a new one")
            self.doc_store = SimpleDocumentStore()