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test.py
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import json
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import os
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import streamlit as st
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from cassandra.auth import PlainTextAuthProvider
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from cassandra.cluster import Cluster
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from llama_index import ServiceContext
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from llama_index import set_global_service_context
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from llama_index import VectorStoreIndex, SimpleDirectoryReader, StorageContext
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from llama_index.embeddings import GradientEmbedding
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from llama_index.llms import GradientBaseModelLLM
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from llama_index.vector_stores import CassandraVectorStore
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from copy import deepcopy
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from tempfile import NamedTemporaryFile
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os.environ['GRADIENT_ACCESS_TOKEN'] = "sevG6Rqb0ztaquM4xjr83SBNSYj91cux"
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os.environ['GRADIENT_WORKSPACE_ID'] = "4de36c1f-5ee6-41da-8f95-9d2fb1ded33a_workspace"
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@st.cache_resource
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def create_datastax_connection():
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cloud_config= {'secure_connect_bundle': 'secure-connect-temp-db.zip'}
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with open("temp_db-token.json") as f:
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secrets = json.load(f)
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CLIENT_ID = secrets["clientId"]
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CLIENT_SECRET = secrets["secret"]
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auth_provider = PlainTextAuthProvider(CLIENT_ID, CLIENT_SECRET)
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cluster = Cluster(cloud=cloud_config, auth_provider=auth_provider)
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astra_session = cluster.connect()
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return astra_session
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def main():
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index_placeholder = None
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st.set_page_config(page_title = "NyayMitra", page_icon="π¦")
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st.header('NyayMitra')
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if "conversation" not in st.session_state:
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st.session_state.conversation = None
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if "activate_chat" not in st.session_state:
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st.session_state.activate_chat = False
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if "messages" not in st.session_state:
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st.session_state.messages = []
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for message in st.session_state.messages:
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with st.chat_message(message["role"], avatar = message['avatar']):
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st.markdown(message["content"])
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session = create_datastax_connection()
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os.environ['GRADIENT_ACCESS_TOKEN'] = "sevG6Rqb0ztaquM4xjr83SBNSYj91cux"
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os.environ['GRADIENT_WORKSPACE_ID'] = "4de36c1f-5ee6-41da-8f95-9d2fb1ded33a_workspace"
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llm = GradientBaseModelLLM(base_model_slug="llama2-7b-chat", max_tokens=400)
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embed_model = GradientEmbedding(
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gradient_access_token = os.environ["GRADIENT_ACCESS_TOKEN"],
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gradient_workspace_id = os.environ["GRADIENT_WORKSPACE_ID"],
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gradient_model_slug="bge-large")
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service_context = ServiceContext.from_defaults(
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llm = llm,
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embed_model = embed_model,
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chunk_size=256)
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set_global_service_context(service_context)
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with st.sidebar:
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st.subheader('Start your chat here')
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if st.button('Process'):
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with st.spinner('Processing'):
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reader = 'data'
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documents = SimpleDirectoryReader(reader).load_data()
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index = VectorStoreIndex.from_documents(documents,
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service_context=service_context)
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query_engine = index.as_query_engine()
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if "query_engine" not in st.session_state:
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st.session_state.query_engine = query_engine
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st.session_state.activate_chat = True
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if st.session_state.activate_chat == True:
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if prompt := st.chat_input("Ask your question"):
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with st.chat_message("user", avatar = 'π¨π»'):
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st.markdown(prompt)
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st.session_state.messages.append({"role": "user",
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"avatar" :'π¨π»',
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"content": prompt})
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query_index_placeholder = st.session_state.query_engine
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pdf_response = query_index_placeholder.query(prompt)
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cleaned_response = pdf_response.response
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with st.chat_message("assistant", avatar='π€'):
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st.markdown(cleaned_response)
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st.session_state.messages.append({"role": "assistant",
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"avatar" :'π€',
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"content": cleaned_response})
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else:
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st.markdown(
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' '
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)
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if __name__ == '__main__':
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main()
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