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# Copyright (c) 2023 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License 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.
"""Module defining DiscreteResult class."""
from __future__ import annotations
from dataclasses import dataclass
from .discrete_load import DiscreteLoad
from .trial_measurement import MeasurementResult
@dataclass
class DiscreteResult(MeasurementResult):
"""A measurement result where intended load is also given as discrete load.
The discrete load has to be round and has to match the intended load.
"""
# Must have default as superclass has fields with default values.
discrete_load: DiscreteLoad = None
"""Intended load [tps]; discrete, round and equal to intended load."""
def __post_init__(self) -> None:
"""Call super, verify intended and discrete loads are the same.
:raises TypeError: If discrete load is not DiscreteLoad.
:raises ValueError: If the discrete load is not round.
:raises ValueError: If the load does not match intended load.
"""
super().__post_init__()
if not isinstance(self.discrete_load, DiscreteLoad):
raise TypeError(f"Not a discrete load: {self.discrete_load!r}")
if not self.discrete_load.is_round:
raise ValueError(f"Discrete load not round: {self.discrete_load!r}")
if float(self.discrete_load) != self.intended_load:
raise ValueError(f"Load mismatch: {self!r}")
@staticmethod
def with_load(
result: MeasurementResult, load: DiscreteLoad
) -> DiscreteResult:
"""Return result with added load.
:param result: A result, possibly without discrete load.
:param load: Discrete load to add.
:type result: MeasurementResult
:type load: DiscreteLoad
:returns: Equivalent result with matching discrete load.
:rtype: DiscreteResult
:raises TypeError: If discrete load is not DiscreteLoad.
:raises ValueError: If the discrete load is not round.
:raises ValueError: If the load does not match intended load.
"""
return DiscreteResult(
intended_duration=result.intended_duration,
intended_load=result.intended_load,
offered_count=result.offered_count,
loss_count=result.loss_count,
forwarding_count=result.forwarding_count,
offered_duration=result.offered_duration,
duration_with_overheads=result.duration_with_overheads,
intended_count=result.intended_count,
discrete_load=load,
)
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