Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
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75 lines
2.7 KiB
75 lines
2.7 KiB
7 years ago
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#include "benchmarks.pb.h"
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#include "datasets/google_message1/proto2/benchmark_message1_proto2.pb.h"
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#include "datasets/google_message1/proto3/benchmark_message1_proto3.pb.h"
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#include "datasets/google_message2/benchmark_message2.pb.h"
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#include "datasets/google_message3/benchmark_message3.pb.h"
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#include "datasets/google_message4/benchmark_message4.pb.h"
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#include "data_proto2_to_proto3_util.h"
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#include <fstream>
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using google::protobuf::util::Proto3DataStripper;
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std::string ReadFile(const std::string& name) {
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std::ifstream file(name.c_str());
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GOOGLE_CHECK(file.is_open()) << "Couldn't find file '"
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<< name
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<< "', please make sure you are running this command from the benchmarks"
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<< " directory.\n";
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return std::string((std::istreambuf_iterator<char>(file)),
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std::istreambuf_iterator<char>());
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}
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int main(int argc, char *argv[]) {
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if (argc % 2 == 0 || argc == 1) {
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std::cerr << "Usage: [input_files] [output_file_names] where " <<
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"input_files are one to one mapping to output_file_names." <<
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std::endl;
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return 1;
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}
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for (int i = argc / 2; i > 0; i--) {
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const std::string &input_file = argv[i];
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const std::string &output_file = argv[i + argc / 2];
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std::cerr << "Generating " << input_file
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<< " to " << output_file << std::endl;
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benchmarks::BenchmarkDataset dataset;
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Message* message;
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std::string dataset_payload = ReadFile(input_file);
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GOOGLE_CHECK(dataset.ParseFromString(dataset_payload))
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<< "Can' t parse data file " << input_file;
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if (dataset.message_name() == "benchmarks.proto3.GoogleMessage1") {
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message = new benchmarks::proto3::GoogleMessage1;
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} else if (dataset.message_name() == "benchmarks.proto2.GoogleMessage1") {
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message = new benchmarks::proto2::GoogleMessage1;
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} else if (dataset.message_name() == "benchmarks.proto2.GoogleMessage2") {
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message = new benchmarks::proto2::GoogleMessage2;
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} else if (dataset.message_name() ==
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"benchmarks.google_message3.GoogleMessage3") {
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message = new benchmarks::google_message3::GoogleMessage3;
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} else if (dataset.message_name() ==
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"benchmarks.google_message4.GoogleMessage4") {
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message = new benchmarks::google_message4::GoogleMessage4;
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} else {
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std::cerr << "Unknown message type: " << dataset.message_name();
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exit(1);
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}
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for (int i = 0; i < dataset.payload_size(); i++) {
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message->ParseFromString(dataset.payload(i));
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Proto3DataStripper stripper;
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stripper.StripMessage(message);
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dataset.set_payload(i, message->SerializeAsString());
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}
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std::ofstream ofs(output_file);
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ofs << dataset.SerializeAsString();
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ofs.close();
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}
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return 0;
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}
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