# Copyright 2019-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"). You
# may not use this file except in compliance with the License. A copy of
# the License is located at
#
# http://aws.amazon.com/apache2.0/
#
# or in the "license" file accompanying this file. This file is
# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
# ANY KIND, either express or implied. See the License for the specific
# language governing permissions and limitations under the License.
import asyncio
import uuid
from typing import Union
from braket.tasks import AnnealingQuantumTaskResult, GateModelQuantumTaskResult, QuantumTask
[docs]class LocalQuantumTask(QuantumTask):
""" A task containing the results of a local simulation.
Since this class is instantiated with the results, cancel() and run_async() are unsupported.
"""
def __init__(self, result: Union[GateModelQuantumTaskResult, AnnealingQuantumTaskResult]):
self._id = uuid.uuid4()
self._result = result
@property
def id(self) -> str:
return str(self._id)
[docs] def cancel(self) -> None:
raise NotImplementedError("Cannot cancel completed local task")
[docs] def state(self) -> str:
return "COMPLETED"
[docs] def result(self) -> Union[GateModelQuantumTaskResult, AnnealingQuantumTaskResult]:
return self._result
[docs] def async_result(self) -> asyncio.Task:
# TODO: Allow for asynchronous simulation
raise NotImplementedError("Asynchronous local simulation unsupported")