279 lines
9.0 KiB
Python
279 lines
9.0 KiB
Python
from __future__ import annotations
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import json
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from dataclasses import asdict
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from datetime import datetime
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from typing import Any
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from sqlalchemy import Engine, delete, func, select
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from sqlalchemy.orm import Session, sessionmaker
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from cloud.db_models import (
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Base,
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HostRow,
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PluginRow,
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PooledDeviceRow,
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ScheduledTaskRow,
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)
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from core.models import utc_now
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class SQLAlchemyCloudRepository:
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"""SQLAlchemy adapter preserving the existing CloudStore CRUD surface."""
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def __init__(self, engine: Engine, *, create_schema: bool = True) -> None:
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self.engine = engine
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self._sessions = sessionmaker(bind=engine, expire_on_commit=False)
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if create_schema:
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Base.metadata.create_all(engine)
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def upsert_host(
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self,
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host_id: str,
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*,
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address: str | None,
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last_seen_at: datetime,
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) -> None:
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with self._sessions.begin() as session:
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row = session.get(HostRow, host_id)
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if row is None:
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session.add(
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HostRow(
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host_id=host_id,
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address=address,
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last_seen_at=_iso(last_seen_at),
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)
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)
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return
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if address is not None:
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row.address = address
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row.last_seen_at = _iso(last_seen_at)
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def replace_host_devices(
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self,
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host_id: str,
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devices: list[Any],
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) -> None:
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with self._sessions.begin() as session:
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session.execute(
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delete(PooledDeviceRow).where(PooledDeviceRow.host_id == host_id)
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)
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session.add_all(
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[
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PooledDeviceRow(
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device_id=device.device_id,
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host_id=device.host_id,
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driver_type=device.driver_type,
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status=device.status,
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capability_tags_json=json.dumps(
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list(device.capability_tags),
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ensure_ascii=False,
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),
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synced_at=_iso(device.synced_at) if device.synced_at else None,
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)
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for device in devices
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]
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)
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def list_hosts(self) -> list[Any]:
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with self._sessions() as session:
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rows = session.scalars(select(HostRow).order_by(HostRow.host_id)).all()
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return [_host_from_row(row) for row in rows]
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def get_host(self, host_id: str) -> Any | None:
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with self._sessions() as session:
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row = session.get(HostRow, host_id)
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return _host_from_row(row) if row else None
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def list_devices(self) -> list[Any]:
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with self._sessions() as session:
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rows = session.scalars(
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select(PooledDeviceRow).order_by(
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PooledDeviceRow.host_id,
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PooledDeviceRow.device_id,
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)
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).all()
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return [_device_from_row(row) for row in rows]
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def get_device(self, device_id: str) -> Any | None:
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with self._sessions() as session:
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row = session.scalars(
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select(PooledDeviceRow)
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.where(PooledDeviceRow.device_id == device_id)
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.order_by(PooledDeviceRow.host_id)
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.limit(1)
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).first()
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return _device_from_row(row) if row else None
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def enqueue_task(self, task: Any) -> None:
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with self._sessions.begin() as session:
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session.add(
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ScheduledTaskRow(
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id=task.id,
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goal=task.goal,
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workflow_definition_id=task.workflow_definition_id,
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constraints_json=json.dumps(
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asdict(task.constraints),
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ensure_ascii=False,
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),
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status=task.status,
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assigned_device_id=task.assigned_device_id,
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assigned_host_id=task.assigned_host_id,
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created_at=_iso(task.created_at),
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)
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)
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def list_queued_tasks(self) -> list[Any]:
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with self._sessions() as session:
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rows = session.scalars(
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select(ScheduledTaskRow)
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.where(ScheduledTaskRow.status == "queued")
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.order_by(ScheduledTaskRow.created_at, ScheduledTaskRow.id)
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).all()
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return [_task_from_row(row) for row in rows]
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def get_task(self, task_id: str) -> Any | None:
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with self._sessions() as session:
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row = session.get(ScheduledTaskRow, task_id)
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return _task_from_row(row) if row else None
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def update_task(
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self,
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task_id: str,
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*,
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status: str | None = None,
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assigned_device_id: str | None = None,
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assigned_host_id: str | None = None,
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) -> None:
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with self._sessions.begin() as session:
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row = session.get(ScheduledTaskRow, task_id)
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if row is None:
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return
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if status is not None:
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row.status = status
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if assigned_device_id is not None:
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row.assigned_device_id = assigned_device_id
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if assigned_host_id is not None:
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row.assigned_host_id = assigned_host_id
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def count_queued_tasks(self) -> int:
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with self._sessions() as session:
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count = session.scalar(
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select(func.count())
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.select_from(ScheduledTaskRow)
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.where(ScheduledTaskRow.status == "queued")
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)
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return int(count or 0)
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def save_plugin(self, manifest: Any, *, wired: bool) -> None:
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with self._sessions.begin() as session:
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row = session.get(PluginRow, manifest.name)
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if row is None:
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session.add(
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PluginRow(
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name=manifest.name,
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version=manifest.version,
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entry_point_kind=manifest.entry_point_kind,
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target=manifest.target,
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wired=1 if wired else 0,
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)
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)
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return
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row.version = manifest.version
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row.entry_point_kind = manifest.entry_point_kind
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row.target = manifest.target
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row.wired = 1 if wired else 0
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def list_plugins(self) -> list[tuple[Any, bool]]:
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with self._sessions() as session:
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rows = session.scalars(select(PluginRow).order_by(PluginRow.name)).all()
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return [_plugin_from_row(row) for row in rows]
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def get_plugin(self, name: str) -> tuple[Any, bool] | None:
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with self._sessions() as session:
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row = session.get(PluginRow, name)
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return _plugin_from_row(row) if row else None
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def health_check(self) -> None:
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with self._sessions() as session:
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session.execute(select(1))
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def close(self) -> None:
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self.engine.dispose()
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def _iso(value: datetime) -> str:
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return value.isoformat()
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def _parse_dt(value: str | None) -> datetime | None:
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if not value:
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return None
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try:
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return datetime.fromisoformat(value)
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except ValueError:
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return None
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def _host_from_row(row: HostRow) -> Any:
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from cloud.pool import HostRegistration
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return HostRegistration(
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host_id=row.host_id,
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address=row.address,
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last_seen_at=_parse_dt(row.last_seen_at) or utc_now(),
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)
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def _device_from_row(row: PooledDeviceRow) -> Any:
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from cloud.pool import PooledDevice
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try:
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tags = list(json.loads(row.capability_tags_json))
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except (TypeError, ValueError):
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tags = []
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return PooledDevice(
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device_id=row.device_id,
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host_id=row.host_id,
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driver_type=row.driver_type,
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status=row.status,
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capability_tags=tags,
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synced_at=_parse_dt(row.synced_at),
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)
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def _task_from_row(row: ScheduledTaskRow) -> Any:
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from cloud.scheduler import ScheduledTask, TaskConstraints
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try:
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constraints_data = json.loads(row.constraints_json)
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except (TypeError, ValueError):
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constraints_data = {}
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return ScheduledTask(
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id=row.id,
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goal=row.goal,
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workflow_definition_id=row.workflow_definition_id,
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constraints=TaskConstraints(
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driver_type=constraints_data.get("driver_type"),
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capability_tags=list(constraints_data.get("capability_tags") or []),
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),
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status=row.status,
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assigned_device_id=row.assigned_device_id,
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assigned_host_id=row.assigned_host_id,
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created_at=_parse_dt(row.created_at) or utc_now(),
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)
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def _plugin_from_row(row: PluginRow) -> tuple[Any, bool]:
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from cloud.plugins import PluginManifest
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return (
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PluginManifest(
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name=row.name,
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version=row.version,
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entry_point_kind=row.entry_point_kind,
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target=row.target,
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),
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bool(row.wired),
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)
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