1# Copyright 2015 ARM Limited 2# 3# Licensed under the Apache License, Version 2.0 (the "License"); 4# you may not use this file except in compliance with the License. 5# You may obtain a copy of the License at 6# 7# http://www.apache.org/licenses/LICENSE-2.0 8# 9# Unless required by applicable law or agreed to in writing, software 10# distributed under the License is distributed on an "AS IS" BASIS, 11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12# See the License for the specific language governing permissions and 13# limitations under the License. 14# 15 16from devlib.instrument import MeasurementType, MEASUREMENT_TYPES 17 18 19class DerivedMetric(object): 20 21 __slots__ = ['name', 'value', 'measurement_type'] 22 23 @property 24 def units(self): 25 return self.measurement_type.units 26 27 def __init__(self, name, value, measurement_type): 28 self.name = name 29 self.value = value 30 if isinstance(measurement_type, MeasurementType): 31 self.measurement_type = measurement_type 32 else: 33 try: 34 self.measurement_type = MEASUREMENT_TYPES[measurement_type] 35 except KeyError: 36 msg = 'Unknown measurement type: {}' 37 raise ValueError(msg.format(measurement_type)) 38 39 def __cmp__(self, other): 40 if hasattr(other, 'value'): 41 return cmp(self.value, other.value) 42 else: 43 return cmp(self.value, other) 44 45 def __str__(self): 46 if self.units: 47 return '{}: {} {}'.format(self.name, self.value, self.units) 48 else: 49 return '{}: {}'.format(self.name, self.value) 50 51 __repr__ = __str__ 52 53 54class DerivedMeasurements(object): 55 56 def process(self, measurements_csv): 57 return [] 58 59 def process_raw(self, *args): 60 return [] 61