From 541314da514654e0fb74ad089f9c5d65c181c8d0 Mon Sep 17 00:00:00 2001 From: julio Almeida Date: Thu, 3 Oct 2024 11:46:35 +0100 Subject: [PATCH] Pdfpumbler added --- extract_thinker/__init__.py | 2 + .../document_loader_pdfplumber.py | 55 ++++++ poetry.lock | 187 +++++++++++++++++- pyproject.toml | 3 +- tests/test_document_loader_pdfplumber.py | 30 +++ 5 files changed, 270 insertions(+), 7 deletions(-) create mode 100644 extract_thinker/document_loader/document_loader_pdfplumber.py create mode 100644 tests/test_document_loader_pdfplumber.py diff --git a/extract_thinker/__init__.py b/extract_thinker/__init__.py index c2b786a..df0168d 100644 --- a/extract_thinker/__init__.py +++ b/extract_thinker/__init__.py @@ -6,6 +6,7 @@ from .document_loader.document_loader_spreadsheet import DocumentLoaderSpreadSheet from .document_loader.document_loader_azure_document_intelligence import DocumentLoaderAzureForm from .document_loader.document_loader_pypdf import DocumentLoaderPyPdf +from .document_loader.document_loader_pdfplumber import DocumentLoaderPdfPlumber from .models import classification, classification_response from .process import Process, ClassificationStrategy from .splitter import Splitter @@ -23,6 +24,7 @@ 'DocumentLoaderSpreadSheet', 'DocumentLoaderAzureForm', 'DocumentLoaderPyPdf', + 'DocumentLoaderPdfPlumber', 'classification', 'classification_response', 'Process', diff --git a/extract_thinker/document_loader/document_loader_pdfplumber.py b/extract_thinker/document_loader/document_loader_pdfplumber.py new file mode 100644 index 0000000..5d2c4d4 --- /dev/null +++ b/extract_thinker/document_loader/document_loader_pdfplumber.py @@ -0,0 +1,55 @@ +import io +from typing import Any, Dict, List, Union + +import pdfplumber + +from extract_thinker.document_loader.cached_document_loader import CachedDocumentLoader +from extract_thinker.utils import get_file_extension + +SUPPORTED_FORMATS = ['pdf'] + +class DocumentLoaderPdfPlumber(CachedDocumentLoader): + def __init__(self, content: Any = None, cache_ttl: int = 300): + super().__init__(content, cache_ttl) + + def load_content_from_file(self, file_path: str) -> Union[str, Dict[str, Any]]: + try: + if get_file_extension(file_path).lower() not in SUPPORTED_FORMATS: + raise Exception(f"Unsupported file type: {file_path}") + + with pdfplumber.open(file_path) as pdf: + return self.extract_data_from_pdf(pdf) + except Exception as e: + raise Exception(f"Error processing file: {e}") from e + + def load_content_from_stream(self, stream: io.BytesIO) -> Union[str, Dict[str, Any]]: + try: + with pdfplumber.open(stream) as pdf: + return self.extract_data_from_pdf(pdf) + except Exception as e: + raise Exception(f"Error processing stream: {e}") from e + + def extract_data_from_pdf(self, pdf: pdfplumber.PDF) -> Dict[str, Any]: + document_data = { + "text": [], + "tables": [] + } + + for page in pdf.pages: + # Extract text + page_text = page.extract_text() + if page_text: + document_data["text"].extend(page_text.split('\n')) + + # Extract tables + tables = page.extract_tables() + for table in tables: + document_data["tables"].append(table) + + return document_data + + def load_content_from_file_list(self, file_paths: List[str]) -> List[Dict[str, Any]]: + return [self.load_content_from_file(file_path) for file_path in file_paths] + + def load_content_from_stream_list(self, streams: List[io.BytesIO]) -> List[Dict[str, Any]]: + return [self.load_content_from_stream(stream) for stream in streams] \ No newline at end of file diff --git a/poetry.lock b/poetry.lock index ab877a3..f4cb55a 100644 --- a/poetry.lock +++ b/poetry.lock @@ -1,4 +1,4 @@ -# This file is automatically @generated by Poetry 1.8.2 and should not be changed by hand. +# This file is automatically @generated by Poetry 1.8.3 and should not be changed by hand. 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google-cloud-documentai = "^2.29.1" boto3 = "^1.34.161" +pdfplumber = "^0.11.4" [tool.poetry.dev-dependencies] flake8 = "^3.9.2" diff --git a/tests/test_document_loader_pdfplumber.py b/tests/test_document_loader_pdfplumber.py new file mode 100644 index 0000000..8d50849 --- /dev/null +++ b/tests/test_document_loader_pdfplumber.py @@ -0,0 +1,30 @@ +import os +import io +import pytest +from dotenv import load_dotenv + +from extract_thinker.document_loader.document_loader_pdfplumber import DocumentLoaderPdfPlumber + +load_dotenv() + +def test_load_content_from_pdf(): + # Arrange + loader = DocumentLoaderPdfPlumber() + + current_dir = os.path.dirname(os.path.abspath(__file__)) + pdf_path = os.path.join(current_dir, 'files', 'invoice.pdf') + + # Act + result = loader.load_content_from_file(pdf_path) + + # Assert + assert isinstance(result, dict) + assert "text" in result + assert "tables" in result + assert isinstance(result["text"], list) + assert isinstance(result["tables"], list) + assert len(result["text"]) > 0 + assert len(result["tables"]) > 0 # Assuming the invoice has at least one table + +if __name__ == "__main__": + test_load_content_from_pdf() \ No newline at end of file