strepsiades
202 lines
6.8 KiB
Python
202 lines
6.8 KiB
Python
from __future__ import annotations
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import asyncio
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import logging
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from collections import deque
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from dataclasses import dataclass
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from datetime import datetime
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from pathlib import Path
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from typing import Any, Deque, Dict, List, Optional, Tuple
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import sync_state_machine.domain # noqa: F401
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from sync_state_machine.pipeline import (
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FullSyncPipeline,
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create_pipeline_from_config,
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)
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from sync_state_machine.config import (
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PipelineRunConfig,
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JsonlDataSourceConfig,
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ApiDataSourceConfig,
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apply_config_overrides,
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)
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from sync_state_machine.logging import clear_app_logger_handlers, configure_app_logging
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from .config_models import PipelineUiConfig, default_ui_config
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@dataclass
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class RunnerStatus:
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running: bool = False
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started_at: Optional[str] = None
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ended_at: Optional[str] = None
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last_error: str = ""
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last_stats: Optional[Dict[str, Any]] = None
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current_log_file: str = ""
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class _UiLogHandler(logging.Handler):
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def __init__(self, callback):
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super().__init__(level=logging.INFO)
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self._callback = callback
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def emit(self, record: logging.LogRecord) -> None:
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try:
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self._callback(self.format(record) + "\n")
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except Exception:
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return
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class PipelineRunnerService:
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def __init__(self) -> None:
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self._status = RunnerStatus(last_stats={})
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self._config = default_ui_config()
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self._task: Optional[asyncio.Task] = None
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self._log_chunks: Deque[str] = deque(maxlen=5000)
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self._lock = asyncio.Lock()
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def get_default_config(self) -> PipelineUiConfig:
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return default_ui_config()
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def get_config(self) -> PipelineUiConfig:
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return self._config
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def set_config(self, cfg: PipelineUiConfig) -> PipelineUiConfig:
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self._config = cfg
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return self._config
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def get_status(self) -> RunnerStatus:
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return self._status
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def get_logs(self, since: int = 0) -> Tuple[List[str], int]:
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chunks = list(self._log_chunks)
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if since < 0:
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since = 0
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if since >= len(chunks):
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return [], len(chunks)
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return chunks[since:], len(chunks)
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async def start(self, cfg: Optional[PipelineUiConfig] = None) -> RunnerStatus:
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async with self._lock:
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if self._task and not self._task.done():
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raise RuntimeError("Pipeline is already running")
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if cfg is not None:
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self._config = cfg
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self._log_chunks.clear()
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self._status = RunnerStatus(
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running=True,
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started_at=datetime.now().isoformat(timespec="seconds"),
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ended_at=None,
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last_error="",
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last_stats={},
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current_log_file="",
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)
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self._task = asyncio.create_task(self._run(self._config))
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return self._status
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async def stop(self) -> RunnerStatus:
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async with self._lock:
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task = self._task
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if not task or task.done():
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return self._status
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task.cancel()
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try:
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await task
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except asyncio.CancelledError:
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pass
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return self._status
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def _append_log(self, data: str) -> int:
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self._log_chunks.append(data)
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return len(data)
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def _append_log_callback(self, data: str) -> None:
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self._append_log(data)
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def write(self, data: str) -> int:
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return self._append_log(data)
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def flush(self) -> None:
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return None
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async def _run(self, cfg: PipelineUiConfig) -> None:
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pipeline = None
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ui_handler = None
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app_logger = None
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log_cfg = cfg.logging.model_copy(deep=True)
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app_logger = None
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try:
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app_logger = configure_app_logging(log_cfg, replace_handlers=True)
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self._status.current_log_file = str(log_cfg.file_path or "")
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ui_handler = _UiLogHandler(self._append_log_callback)
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ui_handler.setFormatter(logging.Formatter("%(message)s"))
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app_logger.addHandler(ui_handler)
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if cfg.mode == "jsonl_to_api":
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pipeline = await self._create_jsonl_to_api_pipeline(cfg)
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else:
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pipeline = await self._create_jsonl_to_jsonl_pipeline(cfg)
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stats = await pipeline.run()
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self._status.last_stats = stats
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self._status.last_error = ""
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except asyncio.CancelledError:
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self._status.last_error = "cancelled"
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raise
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except Exception as exc:
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self._status.last_error = f"{type(exc).__name__}: {exc}"
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finally:
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try:
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if pipeline is not None:
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await pipeline.close()
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finally:
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if app_logger is not None and ui_handler is not None:
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app_logger.removeHandler(ui_handler)
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try:
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ui_handler.close()
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except Exception:
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pass
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clear_app_logger_handlers(app_logger)
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self._status.running = False
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self._status.ended_at = datetime.now().isoformat(timespec="seconds")
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async def _create_jsonl_to_api_pipeline(self, cfg: PipelineUiConfig) -> FullSyncPipeline:
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local_ds = cfg.local_datasource.model_copy(deep=True)
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remote_ds = cfg.remote_datasource.model_copy(deep=True)
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local_ds = JsonlDataSourceConfig.model_validate(local_ds.model_dump())
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remote_ds = ApiDataSourceConfig.model_validate(remote_ds.model_dump())
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run_cfg = PipelineRunConfig(
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node_types=list(cfg.node_types),
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local_datasource=local_ds,
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remote_datasource=remote_ds,
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strategies=[],
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persist=cfg.persist.model_copy(deep=True),
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logging=cfg.logging.model_copy(deep=True),
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)
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if cfg.strategies:
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run_cfg = apply_config_overrides(run_cfg, {"strategies": dict(cfg.strategies)})
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return await create_pipeline_from_config(run_cfg)
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async def _create_jsonl_to_jsonl_pipeline(self, cfg: PipelineUiConfig) -> FullSyncPipeline:
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local_ds = cfg.local_datasource.model_copy(deep=True)
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remote_ds = cfg.remote_datasource.model_copy(deep=True)
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local_ds = JsonlDataSourceConfig.model_validate(local_ds.model_dump())
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remote_ds = JsonlDataSourceConfig.model_validate(remote_ds.model_dump())
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run_cfg = PipelineRunConfig(
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node_types=list(cfg.node_types),
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local_datasource=local_ds,
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remote_datasource=remote_ds,
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strategies=[],
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persist=cfg.persist.model_copy(deep=True),
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logging=cfg.logging.model_copy(deep=True),
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)
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if cfg.strategies:
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run_cfg = apply_config_overrides(run_cfg, {"strategies": dict(cfg.strategies)})
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return await create_pipeline_from_config(run_cfg)
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