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/*
* Copyright 2019 Google Inc.
* 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
*
* https://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.
*/
// Tool to generate dummy data for the client and server in Private Join and
// Compute.
#include "gflags/gflags.h"
#include "glog/logging.h"
#include "data_util.h"
// Flags defining the size of data to generate for the client and server, bounds
// on the associated values, and where the write the outputs.
DEFINE_int64(server_data_size, 100,
"Number of dummy identifiers in server database.");
DEFINE_int64(
client_data_size, 100,
"Number of dummy identifiers and associated values in client database.");
DEFINE_int64(intersection_size, 50,
"Number of items in the intersection. Must be less than the "
"server and client data sizes.");
DEFINE_int64(max_associated_value, 100,
"Dummy associated values for the client will be between 0 and "
"this. Must be nonnegative.");
DEFINE_string(server_data_file, "",
"The file to which to write the server database.");
DEFINE_string(client_data_file, "",
"The file to which to write the client database.");
int main(int argc, char** argv) {
google::InitGoogleLogging(argv[0]);
gflags::ParseCommandLineFlags(&argc, &argv, true);
auto maybe_dummy_data = private_join_and_compute::GenerateRandomDatabases(
FLAGS_server_data_size, FLAGS_client_data_size, FLAGS_intersection_size,
FLAGS_max_associated_value);
if (!maybe_dummy_data.ok()) {
std::cerr << "GenerateDummyData: Error generating the dummy data: "
<< maybe_dummy_data.status() << std::endl;
return 1;
}
auto dummy_data = std::move(maybe_dummy_data.value());
auto& server_identifiers = std::get<0>(dummy_data);
auto& client_identifiers_and_associated_values = std::get<1>(dummy_data);
int64_t intersection_sum = std::get<2>(dummy_data);
auto server_write_status = private_join_and_compute::WriteServerDatasetToFile(
server_identifiers, FLAGS_server_data_file);
if (!server_write_status.ok()) {
std::cerr << "GenerateDummyData: Error writing server dataset: "
<< server_write_status << std::endl;
return 1;
}
auto client_write_status = private_join_and_compute::WriteClientDatasetToFile(
client_identifiers_and_associated_values.first,
client_identifiers_and_associated_values.second, FLAGS_client_data_file);
if (!client_write_status.ok()) {
std::cerr << "GenerateDummyData: Error writing client dataset: "
<< client_write_status << std::endl;
return 1;
}
std::cout << "Generated Server dataset of size " << FLAGS_client_data_size
<< ", Client dataset of size " << FLAGS_client_data_size
<< std::endl;
std::cout << "Intersection size = " << FLAGS_intersection_size << std::endl;
std::cout << "Intersection sum = " << intersection_sum << std::endl;
return 0;
}
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