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import streamlit as st
from dotenv import load_dotenv
# from langchain.text_splitter import CharacterTextSplitter, RecursiveCharacterTextSplitter
# from langchain.vectorstores import FAISS
# from langchain.embeddings import HuggingFaceEmbeddings # General embeddings from HuggingFace models.
from langchain.memory import ConversationBufferMemory
from langchain.chains import ConversationalRetrievalChain
from htmlTemplates import css, bot_template, user_template
# from langchain.llms import LlamaCpp # For loading transformer models.
# from langchain.document_loaders import PyPDFLoader, TextLoader, JSONLoader, CSVLoader
# ํ
์คํธ ์คํ๋ฆฌํฐ
from langchain_text_splitters import CharacterTextSplitter, RecursiveCharacterTextSplitter
# ๋ฒกํฐ์คํ ์ด/์๋ฒ ๋ฉ/LLM
from langchain_community.vectorstores import FAISS
from langchain_community.embeddings import HuggingFaceEmbeddings
# ๋ก๋๋ค (pebblo/pwd ๋๋ ค์ค์ง ์๊ฒ ์๋ธ๋ชจ๋๋ก)
from langchain_community.document_loaders.pdf import PyPDFLoader
from langchain_community.document_loaders.text import TextLoader
from langchain_community.document_loaders.csv_loader import CSVLoader
from langchain_community.document_loaders.json_loader import JSONLoader
import tempfile # ์์ ํ์ผ์ ์์ฑํ๊ธฐ ์ํ ๋ผ์ด๋ธ๋ฌ๋ฆฌ์
๋๋ค.
import os
import json
from langchain.docstore.document import Document
from langchain_groq import ChatGroq
# PDF ๋ฌธ์๋ก๋ถํฐ ํ
์คํธ๋ฅผ ์ถ์ถํ๋ ํจ์
def get_pdf_text(pdf_docs):
temp_dir = tempfile.TemporaryDirectory()
temp_filepath = os.path.join(temp_dir.name, pdf_docs.name)
with open(temp_filepath, "wb") as f:
f.write(pdf_docs.getvalue())
pdf_loader = PyPDFLoader(temp_filepath)
pdf_doc = pdf_loader.load()
return pdf_doc
# txt ํ์ผ๋ก๋ถํฐ text ์ถ์ถ
def get_text_file(txt_docs):
temp_dir = tempfile.TemporaryDirectory()
temp_filepath = os.path.join(temp_dir.name, txt_docs.name)
with open(temp_filepath, "wb") as f:
f.write(txt_docs.getvalue())
text_loader = TextLoader(temp_filepath)
text_doc = text_loader.load()
return text_doc
# csv ํ์ผ๋ก๋ถํฐ text ์ถ์ถ
def get_csv_file(csv_docs):
temp_dir = tempfile.TemporaryDirectory()
temp_filepath = os.path.join(temp_dir.name, csv_docs.name)
with open(temp_filepath,"wb") as f:
f.write(csv_docs.getvalue())
csv_loader = CSVLoader(temp_filepath)
csv_doc = csv_loader.load()
return csv_doc
# def get_json_file(docs):
# temp_dir = tempfile.TemporaryDirectory()
# temp_filepath = os.path.join(temp_dir.name, docs.name)
# with open(temp_filepath, "wb") as f:
# f.write(docs.getvalue())
# json_loader = JSONLoader(temp_filepath,
# jq_schema='.scans[].relationships',
# text_content=False)
#
# json_doc = json_loader.load()
# # print('json_doc = ',json_doc)
# return json_doc
def get_json_file(file) -> list[Document]:
# Streamlit UploadedFile -> str
raw = file.getvalue().decode("utf-8", errors="ignore")
data = json.loads(raw)
docs = []
# ์์ jq ๊ฒฝ๋ก๊ฐ '.scans[].relationships'์๋ค๋ฉด, ๋์ผํ ์๋ฏธ๋ก ํ์ฑ:
# ์กด์ฌํ๋ฉด ๊ทธ๊ฒ๋ง ๋ฝ๊ณ , ์์ผ๋ฉด ํต์ผ๋ก ๋ฌธ์ํ
def add_doc(x):
docs.append(Document(page_content=json.dumps(x, ensure_ascii=False)))
if isinstance(data, dict) and "scans" in data and isinstance(data["scans"], list):
for s in data["scans"]:
rels = s.get("relationships", [])
if isinstance(rels, list) and rels:
for r in rels:
add_doc(r)
if not docs: # ๊ทธ๋๋ ๋ชป ๋ฝ์์ผ๋ฉด ์ ์ฒด๋ฅผ ํ๋๋ก
add_doc(data)
elif isinstance(data, list):
for item in data:
add_doc(item)
else:
add_doc(data)
return docs
# ๋ฌธ์๋ค์ ์ฒ๋ฆฌํ์ฌ ํ
์คํธ ์ฒญํฌ๋ก ๋๋๋ ํจ์์
๋๋ค.
def get_text_chunks(documents):
text_splitter = RecursiveCharacterTextSplitter(
chunk_size=1000, # ์ฒญํฌ์ ํฌ๊ธฐ๋ฅผ ์ง์ ํฉ๋๋ค.
chunk_overlap=200, # ์ฒญํฌ ์ฌ์ด์ ์ค๋ณต์ ์ง์ ํฉ๋๋ค.
length_function=len # ํ
์คํธ์ ๊ธธ์ด๋ฅผ ์ธก์ ํ๋ ํจ์๋ฅผ ์ง์ ํฉ๋๋ค.
)
documents = text_splitter.split_documents(documents) # ๋ฌธ์๋ค์ ์ฒญํฌ๋ก ๋๋๋๋ค.
return documents # ๋๋ ์ฒญํฌ๋ฅผ ๋ฐํํฉ๋๋ค.
# ํ
์คํธ ์ฒญํฌ๋ค๋ก๋ถํฐ ๋ฒกํฐ ์คํ ์ด๋ฅผ ์์ฑํ๋ ํจ์์
๋๋ค.
def get_vectorstore(text_chunks):
# ์ํ๋ ์๋ฒ ๋ฉ ๋ชจ๋ธ์ ๋ก๋ํฉ๋๋ค.
embeddings = HuggingFaceEmbeddings(model_name='sentence-transformers/clip-ViT-B-32-multilingual-v1',
model_kwargs={'device': 'cpu'}) # ์๋ฒ ๋ฉ ๋ชจ๋ธ์ ์ค์ ํฉ๋๋ค.
vectorstore = FAISS.from_documents(text_chunks, embeddings) # FAISS ๋ฒกํฐ ์คํ ์ด๋ฅผ ์์ฑํฉ๋๋ค.
return vectorstore # ์์ฑ๋ ๋ฒกํฐ ์คํ ์ด๋ฅผ ๋ฐํํฉ๋๋ค.
def get_conversation_chain(vectorstore):
# Groq LLM
llm = ChatGroq(
groq_api_key=os.environ.get("GROQ_API_KEY"),
model_name="llama-3.1-8b-instant",
temperature=0.75, # ํ์์ ๋ง๊ฒ ํ๋
max_tokens=512 # ์ปจํ
์คํธ ์ด๊ณผ ๋ฐฉ์ง์ฉ (ํ์์ ์กฐ์ )
)
memory = ConversationBufferMemory(
memory_key="chat_history",
return_messages=True
)
retriever = vectorstore.as_retriever(search_kwargs={"k": 3})
conversation_chain = ConversationalRetrievalChain.from_llm(
llm=llm,
retriever=retriever,
memory=memory,
)
return conversation_chain
# ์ฌ์ฉ์ ์
๋ ฅ์ ์ฒ๋ฆฌํ๋ ํจ์์
๋๋ค.
def handle_userinput(user_question):
print('user_question => ', user_question)
# ๋ํ ์ฒด์ธ์ ์ฌ์ฉํ์ฌ ์ฌ์ฉ์ ์ง๋ฌธ์ ๋ํ ์๋ต์ ์์ฑํฉ๋๋ค.
response = st.session_state.conversation({'question': user_question})
# ๋ํ ๊ธฐ๋ก์ ์ ์ฅํฉ๋๋ค.
st.session_state.chat_history = response['chat_history']
for i, message in enumerate(st.session_state.chat_history):
if i % 2 == 0:
st.write(user_template.replace(
"{{MSG}}", message.content), unsafe_allow_html=True)
else:
st.write(bot_template.replace(
"{{MSG}}", message.content), unsafe_allow_html=True)
def main():
load_dotenv()
st.set_page_config(page_title="Basic_RAG_AI_Chatbot_with_Llama",
page_icon=":books:")
st.write(css, unsafe_allow_html=True)
if "conversation" not in st.session_state:
st.session_state.conversation = None
if "chat_history" not in st.session_state:
st.session_state.chat_history = None
st.header("Basic_RAG_AI_Chatbot_with_Llama3 :books:")
user_question = st.text_input("Ask a question about your documents:")
if user_question:
handle_userinput(user_question)
with st.sidebar:
st.subheader("Your documents")
docs = st.file_uploader(
"Upload your Files here and click on 'Process'", accept_multiple_files=True)
if st.button("Process[PDF]"):
with st.spinner("Processing"):
# get pdf text
doc_list = []
for file in docs:
print('file - type : ', file.type)
if file.type in ['application/octet-stream', 'application/pdf']:
# file is .pdf
doc_list.extend(get_pdf_text(file))
else:
st.error("PDF ํ์ผ์ด ์๋๋๋ค.")
if not doc_list:
st.error("์ฒ๋ฆฌ ๊ฐ๋ฅํ ๋ฌธ์๋ฅผ ์ฐพ์ง ๋ชปํ์ต๋๋ค.")
st.stop()
text_chunks = get_text_chunks(doc_list)
vectorstore = get_vectorstore(text_chunks)
st.session_state.conversation = get_conversation_chain(vectorstore)
################## TXT, CSV ๋ฒํผ ๊ตฌํ
# TXT ๋ฒํผ ๊ตฌํ ์ฐธ๊ณ : if file.type == 'text/plain':
# CSV ๋ฒํผ ๊ตฌํ ์ฐธ๊ณ : if file.type == 'text/csv':
if st.button("Process[JSON]"):
with st.spinner("Processing"):
doc_list = []
for file in docs:
print('file - type : ', file.type)
if file.type == 'application/json':
# file is .json
doc_list.extend(get_json_file(file))
else:
st.error("JSON ํ์ผ์ด ์๋๋๋ค.")
if not doc_list:
st.error("์ฒ๋ฆฌ ๊ฐ๋ฅํ ๋ฌธ์๋ฅผ ์ฐพ์ง ๋ชปํ์ต๋๋ค.")
st.stop()
text_chunks = get_text_chunks(doc_list)
vectorstore = get_vectorstore(text_chunks)
st.session_state.conversation = get_conversation_chain(vectorstore)
if st.button("Process[TXT]"):
with st.spinner("Processing"):
# get txt text
doc_list = []
for file in docs:
print('file - type : ', file.type)
if file.type == 'text/plain':
doc_list.extend(get_text_file(file))
else:
st.error("TXT ํ์ผ์ด ์๋๋๋ค.")
if not doc_list:
st.error("์ฒ๋ฆฌ ๊ฐ๋ฅํ ๋ฌธ์๋ฅผ ์ฐพ์ง ๋ชปํ์ต๋๋ค.")
st.stop()
text_chunks = get_text_chunks(doc_list)
vectorstore = get_vectorstore(text_chunks)
st.session_state.conversation = get_conversation_chain(vectorstore)
if st.button("Process[CSV]"):
with st.spinner("Processing"):
# get csv text
doc_list = []
for file in docs:
print('file - type : ', file.type)
if file.type == 'text/csv':
doc_list.extend(get_csv_file(file))
else:
st.error("csv ํ์ผ์ด ์๋๋๋ค.")
if not doc_list:
st.error("์ฒ๋ฆฌ ๊ฐ๋ฅํ ๋ฌธ์๋ฅผ ์ฐพ์ง ๋ชปํ์ต๋๋ค.")
st.stop()
text_chunks = get_text_chunks(doc_list)
vectorstore = get_vectorstore(text_chunks)
st.session_state.conversation = get_conversation_chain(vectorstore)
if __name__ == '__main__':
main() |