Update utils/build_dataset.py

utils/build_dataset.py

@@ -1,4 +1,26 @@
+import os
 from fleet_beam_search_3.dataloader import VRP_Dataset
 
 
-VRP_Dataset(dataset_size=1000)
+def build_and_save_dataset(save_path: str, dataset_size: int = 1000):
+    """
+    Builds a VRP dataset and saves it to the given path.
+
+    Args:
+        save_path (str): Destination file path to save dataset.
+        dataset_size (int): Number of samples in the dataset.
+    """
+    dataset = VRP_Dataset(dataset_size=dataset_size)
+
+    # Check if dataset has a save method or export function
+    if hasattr(dataset, "save") and callable(dataset.save):
+        dataset.save(save_path)
+        print(f"Dataset saved to: {save_path}")
+    else:
+        raise NotImplementedError("Dataset object lacks a save() method.")
+
+        
+if __name__ == "__main__":
+    output_path = "data/generated_vrp_dataset.pkl"
+    os.makedirs(os.path.dirname(output_path), exist_ok=True)
+    build_and_save_dataset(save_path=output_path, dataset_size=1000)