Files
AstrAI/astrai/preprocessing/writer.py
T
ViperEkura 115192c67c refactor: remove H5 storage backend in favor of mmap bin
- Remove H5Store, H5Writer, save_h5/load_h5 and h5py dependency
- MmapStore (bin) is the sole pre-tokenized storage backend
- Move setup_logging after imports to fix E402 in __init__.py
- Clean up unused imports across test files
- Move inline test imports to file top
2026-07-29 12:50:27 +08:00

57 lines
1.5 KiB
Python

"""Storage writer strategies for pipeline output.
The :class:`StoreWriter` abstraction decouples the pipeline from the
concrete storage format (bin). The pipeline builds a ``{key:
List[Tensor]}`` dict and delegates the write to the writer selected
by ``output.storage_format``.
"""
import logging
import os
import shutil
from abc import ABC, abstractmethod
from typing import Dict, List
import torch
from astrai.factory import BaseFactory
from astrai.serialization import save_bin
logger = logging.getLogger(__name__)
class StoreWriter(ABC):
"""Write pre-tokenized tensors to disk in a format-specific way."""
@abstractmethod
def save(
self,
output_dir: str,
domain: str,
shard_idx: int,
tensors: Dict[str, List[torch.Tensor]],
) -> None: ...
class StoreWriterFactory(BaseFactory["StoreWriter"]):
pass
@StoreWriterFactory.register("bin")
class BinWriter(StoreWriter):
def save(self, output_dir, domain, shard_idx, tensors):
shard_path = os.path.join(output_dir, domain, f"shard_{shard_idx:04d}")
try:
save_bin(shard_path, tensors)
except Exception:
if os.path.exists(shard_path):
shutil.rmtree(shard_path, ignore_errors=True)
logger.error(
"Failed to write shard %s/%s_%04d, cleaned up partial output",
domain,
"shard",
shard_idx,
exc_info=True,
)
raise