96 lines
3.3 KiB
Python
96 lines
3.3 KiB
Python
from __future__ import annotations
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from collections.abc import Callable
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from dataclasses import dataclass, field
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from typing import Any
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from cloud.internal_api.models import AssignmentModel
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from core.models import Task
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from host_agent.execution import ExecutionFactories
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@dataclass(frozen=True)
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class AssignmentExecutionResult:
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status: str
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failure_reason: str | None = None
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metadata: dict[str, Any] = field(default_factory=dict)
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class AssignmentExecutor:
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def __init__(self, factories: ExecutionFactories) -> None:
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self.factories = factories
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def execute(
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self,
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assignment: AssignmentModel,
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*,
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should_stop: Callable[[], bool] | None = None,
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) -> AssignmentExecutionResult:
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if should_stop is not None and should_stop():
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return AssignmentExecutionResult(
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status="failed",
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failure_reason="execution interrupted",
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)
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if assignment.workflow_definition_id is not None:
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return self._execute_workflow(assignment, should_stop=should_stop)
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if assignment.goal is not None:
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return self._execute_goal(assignment, should_stop=should_stop)
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return AssignmentExecutionResult(
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status="failed",
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failure_reason="assignment has neither goal nor workflow definition",
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)
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def _execute_goal(
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self,
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assignment: AssignmentModel,
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*,
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should_stop: Callable[[], bool] | None,
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) -> AssignmentExecutionResult:
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task = Task(goal=assignment.goal or "", device_id=assignment.device_id)
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runner = self.factories.task_runner_factory()
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if should_stop is None:
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completed = runner.run(task)
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else:
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completed = runner.run(task, should_stop=should_stop)
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return AssignmentExecutionResult(
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status="done" if completed.status == "completed" else "failed",
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failure_reason=completed.failure_reason,
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metadata={
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"runtime_task_id": completed.id,
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"runtime_status": completed.status,
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},
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)
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def _execute_workflow(
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self,
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assignment: AssignmentModel,
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*,
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should_stop: Callable[[], bool] | None,
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) -> AssignmentExecutionResult:
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definition_id = assignment.workflow_definition_id or ""
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definition = self.factories.workflow_store.get_definition(definition_id)
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if definition is None:
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return AssignmentExecutionResult(
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status="failed",
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failure_reason=f"unknown workflow definition {definition_id!r}",
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)
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runner = self.factories.workflow_runner_factory()
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if should_stop is None:
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run = runner.run(definition, device_id=assignment.device_id)
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else:
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run = runner.run(
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definition,
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device_id=assignment.device_id,
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should_stop=should_stop,
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)
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return AssignmentExecutionResult(
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status="done" if run.status == "completed" else "failed",
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failure_reason=(
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None if run.status == "completed" else f"workflow ended as {run.status}"
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),
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metadata={
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"workflow_run_id": run.id,
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"workflow_status": run.status,
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},
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)
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