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70 lines
2.3 KiB
70 lines
2.3 KiB
#
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# Copyright (C) 2017 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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import logging
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import time
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def GetTimestamp():
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"""Returns the current UTC time (unit: microseconds)."""
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return int(time.time() * 1000000)
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class Feature(object):
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"""Configuration object for a feature.
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Stores configuration parameters and metadata.
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Attributes:
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enabled: boolean, True if the feature is enabled, False otherwise
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"""
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enabled = False
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def ParseParameters(self,
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toggle_param_name=None,
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required_param_names=[],
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optional_param_names=[],
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user_params={}):
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"""Creates a feature configuration object.
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Args:
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toggle_param_name: String, The name of the parameter used to toggle the feature
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required_param_names: list, The list of parameter names that are required
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optional_param_names: list, The list of parameter names that are optional
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"""
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self.enabled = False
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if toggle_param_name:
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if toggle_param_name not in user_params:
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logging.debug("Missing toggle parameter in configuration: %s",
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toggle_param_name)
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return
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if not user_params[toggle_param_name]:
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logging.debug("Feature disabled in configuration: %s=False",
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toggle_param_name)
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return
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for name in required_param_names:
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if name not in user_params:
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return
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else:
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setattr(self, name, user_params[name])
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self.enabled = True
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for name in optional_param_names:
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if name in user_params:
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setattr(self, name, user_params[name])
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