Add multi-threading

DocLayNet-base.py

@@ -28,6 +28,7 @@ import os
 # import base64
 from PIL import Image
 import datasets
+from concurrent.futures import ThreadPoolExecutor, as_completed
 
 # Find for instance the citation on arxiv or on the dataset repo/website
 _CITATION = """\
@@ -190,51 +191,55 @@ class DocLayNet(datasets.GeneratorBasedBuilder):
 
 
     def _generate_examples(self, filepath, split):
-            logger.info("⏳ Generating examples from = %s", filepath)
-            ann_dir = os.path.join(filepath, "annotations")
-            img_dir = os.path.join(filepath, "images")
-            # pdf_dir = os.path.join(filepath, "pdfs")
-        
-            for guid, file in enumerate(sorted(os.listdir(ann_dir))):
-                texts = []
-                bboxes_block = []
-                bboxes_line = []
-                categories = []
-        
-                # get json
-                file_path = os.path.join(ann_dir, file)
-                with open(file_path, "r", encoding="utf8") as f:
-                    data = json.load(f)
-                    
-                # get image
-                image_path = os.path.join(img_dir, file)
-                image_path = image_path.replace("json", "png")
-                image, size = load_image(image_path)
-                
-                # # get pdf
-                # pdf_path = os.path.join(pdf_dir, file)
-                # pdf_path = pdf_path.replace("json", "pdf")
-                # with open(pdf_path, "rb") as pdf_file:
-                #     pdf_bytes = pdf_file.read()
-                #     pdf_encoded_string = base64.b64encode(pdf_bytes)
-
-                for item in data["form"]:
-                    text_example, category_example, bbox_block_example, bbox_line_example = item["text"], item["category"], item["box"], item["box_line"]
-                    texts.append(text_example)
-                    categories.append(category_example)
-                    bboxes_block.append(bbox_block_example)
-                    bboxes_line.append(bbox_line_example)
-
-                # get all metadadata
-                page_hash = data["metadata"]["page_hash"]
-                original_filename = data["metadata"]["original_filename"]
-                page_no = data["metadata"]["page_no"]
-                num_pages = data["metadata"]["num_pages"]
-                original_width = data["metadata"]["original_width"]
-                original_height = data["metadata"]["original_height"]
-                coco_width = data["metadata"]["coco_width"]
-                coco_height = data["metadata"]["coco_height"]
-                collection = data["metadata"]["collection"]
-                doc_category = data["metadata"]["doc_category"]
-
-                yield guid, {"id": str(guid), "texts": texts, "bboxes_block": bboxes_block, "bboxes_line": bboxes_line, "categories": categories, "image": image, "page_hash": page_hash, "original_filename": original_filename, "page_no": page_no, "num_pages": num_pages, "original_width": original_width, "original_height": original_height, "coco_width": coco_width, "coco_height": coco_height, "collection": collection, "doc_category": doc_category}
+        logger.info("⏳ Generating examples from = %s", filepath)
+        ann_dir = os.path.join(filepath, "annotations")
+        img_dir = os.path.join(filepath, "images")
+
+        def process_file(file):
+            texts = []
+            bboxes_block = []
+            bboxes_line = []
+            categories = []
+
+            file_path = os.path.join(ann_dir, file)
+            with open(file_path, "r", encoding="utf8") as f:
+                data = json.load(f)
+            
+            image_path = os.path.join(img_dir, file.replace("json", "png"))
+            image, size = load_image(image_path)
+
+            for item in data["form"]:
+                text_example, category_example, bbox_block_example, bbox_line_example = item["text"], item["category"], item["box"], item["box_line"]
+                texts.append(text_example)
+                categories.append(category_example)
+                bboxes_block.append(bbox_block_example)
+                bboxes_line.append(bbox_line_example)
+
+            metadata = data["metadata"]
+            return {
+                "texts": texts,
+                "bboxes_block": bboxes_block,
+                "bboxes_line": bboxes_line,
+                "categories": categories,
+                "image": image,
+                "page_hash": metadata["page_hash"],
+                "original_filename": metadata["original_filename"],
+                "page_no": metadata["page_no"],
+                "num_pages": metadata["num_pages"],
+                "original_width": metadata["original_width"],
+                "original_height": metadata["original_height"],
+                "coco_width": metadata["coco_width"],
+                "coco_height": metadata["coco_height"],
+                "collection": metadata["collection"],
+                "doc_category": metadata["doc_category"]
+            }
+
+        with ThreadPoolExecutor(max_workers=os.cpu_count()) as executor:
+            future_to_file = {executor.submit(process_file, file): file for file in sorted(os.listdir(ann_dir))}
+            for guid, future in enumerate(as_completed(future_to_file)):
+                file = future_to_file[future]
+                try:
+                    result = future.result()
+                    yield guid, {"id": str(guid), **result}
+                except Exception as exc:
+                    logger.error(f"Error processing {file}: {exc}")