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import logging
import os
import yaml
from langchain.vectorstores import FAISS
try:
from modules.embedding_model_loader import EmbeddingModelLoader
from modules.data_loader import DataLoader
from modules.constants import *
from modules.helpers import *
except:
from embedding_model_loader import EmbeddingModelLoader
from data_loader import DataLoader
from constants import *
from helpers import *
class VectorDB:
def __init__(self, config, logger=None):
self.config = config
self.db_option = config["embedding_options"]["db_option"]
self.document_names = None
self.webpage_crawler = WebpageCrawler()
# Set up logging to both console and a file
if logger is None:
self.logger = logging.getLogger(__name__)
self.logger.setLevel(logging.INFO)
# Console Handler
console_handler = logging.StreamHandler()
console_handler.setLevel(logging.INFO)
formatter = logging.Formatter("%(asctime)s - %(levelname)s - %(message)s")
console_handler.setFormatter(formatter)
self.logger.addHandler(console_handler)
# File Handler
log_file_path = "vector_db.log" # Change this to your desired log file path
file_handler = logging.FileHandler(log_file_path, mode="w")
file_handler.setLevel(logging.INFO)
file_handler.setFormatter(formatter)
self.logger.addHandler(file_handler)
else:
self.logger = logger
self.logger.info("VectorDB instance instantiated")
def load_files(self):
files = os.listdir(self.config["embedding_options"]["data_path"])
files = [
os.path.join(self.config["embedding_options"]["data_path"], file)
for file in files
]
urls = get_urls_from_file(self.config["embedding_options"]["url_file_path"])
if self.config["embedding_options"]["expand_urls"]:
all_urls = []
for url in urls:
base_url = get_base_url(url)
all_urls.extend(self.webpage_crawler.get_all_pages(url, base_url))
urls = all_urls
return files, urls
def create_embedding_model(self):
self.logger.info("Creating embedding function")
self.embedding_model_loader = EmbeddingModelLoader(self.config)
self.embedding_model = self.embedding_model_loader.load_embedding_model()
def initialize_database(self, document_chunks: list, document_names: list):
# Track token usage
self.logger.info("Initializing vector_db")
self.logger.info("\tUsing {} as db_option".format(self.db_option))
if self.db_option == "FAISS":
self.vector_db = FAISS.from_documents(
documents=document_chunks, embedding=self.embedding_model
)
self.logger.info("Completed initializing vector_db")
def create_database(self):
data_loader = DataLoader(self.config)
self.logger.info("Loading data")
files, urls = self.load_files()
document_chunks, document_names = data_loader.get_chunks(files, urls)
self.logger.info("Completed loading data")
self.create_embedding_model()
self.initialize_database(document_chunks, document_names)
def save_database(self):
self.vector_db.save_local(
os.path.join(
self.config["embedding_options"]["db_path"],
"db_"
+ self.config["embedding_options"]["db_option"]
+ "_"
+ self.config["embedding_options"]["model"],
)
)
self.logger.info("Saved database")
def load_database(self):
self.create_embedding_model()
self.vector_db = FAISS.load_local(
os.path.join(
self.config["embedding_options"]["db_path"],
"db_"
+ self.config["embedding_options"]["db_option"]
+ "_"
+ self.config["embedding_options"]["model"],
),
self.embedding_model,
)
self.logger.info("Loaded database")
return self.vector_db
if __name__ == "__main__":
with open("code/config.yml", "r") as f:
config = yaml.safe_load(f)
print(config)
vector_db = VectorDB(config)
vector_db.create_database()
vector_db.save_database()
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