mirror of
https://github.com/hwchase17/langchain
synced 2024-11-18 09:25:54 +00:00
50 lines
1.5 KiB
Python
50 lines
1.5 KiB
Python
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import os
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from langchain.text_splitter import RecursiveCharacterTextSplitter
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from langchain_community.document_loaders import UnstructuredFileLoader
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from langchain_community.embeddings import HuggingFaceEmbeddings
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from langchain_community.vectorstores import Chroma
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from langchain_core.documents import Document
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def ingest_documents():
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"""
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Ingest PDF to Redis from the data/ directory that
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contains Edgar 10k filings data for Nike.
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"""
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# Load list of pdfs
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data_path = "data/"
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doc = [os.path.join(data_path, file) for file in os.listdir(data_path)][0]
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print("Parsing 10k filing doc for NIKE", doc)
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text_splitter = RecursiveCharacterTextSplitter(
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chunk_size=1500, chunk_overlap=100, add_start_index=True
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)
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loader = UnstructuredFileLoader(doc, mode="single", strategy="fast")
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chunks = loader.load_and_split(text_splitter)
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print("Done preprocessing. Created", len(chunks), "chunks of the original pdf")
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# Create vectorstore
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embedder = HuggingFaceEmbeddings(
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model_name="sentence-transformers/all-MiniLM-L6-v2"
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)
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documents = []
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for chunk in chunks:
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doc = Document(page_content=chunk.page_content, metadata=chunk.metadata)
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documents.append(doc)
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# Add to vectorDB
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_ = Chroma.from_documents(
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documents=documents,
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collection_name="xeon-rag",
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embedding=embedder,
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persist_directory="/tmp/xeon_rag_db",
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)
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if __name__ == "__main__":
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ingest_documents()
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