| #!/usr/bin/env python |
| # Copyright 2016 The Fuchsia Authors |
| # |
| # 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. |
| |
| import randomizer |
| import utils.file_util as file_util |
| |
| |
| class ModuleNameRandomizer: |
| """ A Randomizer that extracts module name from |Entry| and applies |
| randomized response algorithms to it to emit noised reports. Additionally, |
| it uses user_id from |Entry| to setup the secret in the RAPPOR encoder. |
| (The secret is irrelevant for the purposes of this demo.) |
| """ |
| |
| def randomize(self, entries, for_private_release=False): |
| """ A Randomizer that extracts module name from |Entry| and applies |
| randomized response algorithms to it to emit noised reports. |
| |
| This function does not return anything but it writes a file |
| into the "r_to_s" output directory containing the randomizer output. |
| |
| Args: |
| entries {list of Entry}: The entries to be randomized. |
| for_private_release {bool}: Will the extracted data be analyzed using |
| differentially private release? If True then very weak RAPPOR params |
| will be used. |
| """ |
| config_file = (file_util.RAPPOR_MODULE_NAME_PR_CONFIG if |
| for_private_release else file_util.RAPPOR_MODULE_NAME_CONFIG) |
| output_file = (file_util.MODULE_NAME_PR_RANDOMIZER_OUTPUT_FILE_NAME if |
| for_private_release else |
| file_util.MODULE_NAME_RANDOMIZER_OUTPUT_FILE_NAME) |
| randomizer.randomizeUsingRappor(entries, |
| [(1, # module name index in |Entry| |
| True, #use bloom filters |
| config_file, |
| )], |
| output_file, |
| ); |