87 lines
2.9 KiB
C++
87 lines
2.9 KiB
C++
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#include <experimental/filesystem>
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#include <iostream>
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#include <limits>
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#include <gflags/gflags.h>
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#include <glog/logging.h>
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#include "database/state_delta.hpp"
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#include "durability/hashed_file_reader.hpp"
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#include "durability/recovery.hpp"
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#include "durability/wal.hpp"
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#include "transactions/type.hpp"
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DEFINE_string(wal_file, "", "WAL file location");
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using communication::bolt::Value;
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namespace fs = std::experimental::filesystem;
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std::string StateDeltaTypeToString(database::StateDelta::Type type) {
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switch (type) {
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case database::StateDelta::Type::TRANSACTION_BEGIN:
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return "TRANSACTION_BEGIN";
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case database::StateDelta::Type::TRANSACTION_COMMIT:
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return "TRANSACTION_COMMIT";
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case database::StateDelta::Type::TRANSACTION_ABORT:
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return "TRANSACTION_ABORT";
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case database::StateDelta::Type::CREATE_VERTEX:
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return "CREATE_VERTEX";
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case database::StateDelta::Type::CREATE_EDGE:
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return "CREATE_EDGE";
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case database::StateDelta::Type::ADD_OUT_EDGE:
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return "ADD_OUT_EDGE";
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case database::StateDelta::Type::REMOVE_OUT_EDGE:
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return "REMOVE_OUT_EDGE";
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case database::StateDelta::Type::ADD_IN_EDGE:
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return "ADD_IN_EDGE";
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case database::StateDelta::Type::REMOVE_IN_EDGE:
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return "REMOVE_IN_EDGE";
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case database::StateDelta::Type::SET_PROPERTY_VERTEX:
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return "SET_PROPERTY_VERTEX";
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case database::StateDelta::Type::SET_PROPERTY_EDGE:
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return "SET_PROPERTY_EDGE";
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case database::StateDelta::Type::ADD_LABEL:
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return "ADD_LABEL";
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case database::StateDelta::Type::REMOVE_LABEL:
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return "REMOVE_LABEL";
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case database::StateDelta::Type::REMOVE_VERTEX:
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return "REMOVE_VERTEX";
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case database::StateDelta::Type::REMOVE_EDGE:
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return "REMOVE_EDGE";
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case database::StateDelta::Type::BUILD_INDEX:
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return "BUILD_INDEX";
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}
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}
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int main(int argc, char *argv[]) {
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gflags::ParseCommandLineFlags(&argc, &argv, true);
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google::InitGoogleLogging(argv[0]);
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fs::path wal_path(FLAGS_wal_file);
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CHECK(fs::exists(wal_path)) << "File doesn't exist!";
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HashedFileReader wal_reader;
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CHECK(wal_reader.Open(wal_path)) << "Couldn't open wal file!";
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communication::bolt::Decoder<HashedFileReader> decoder(wal_reader);
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tx::TransactionId max_observed_tx_id{0};
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tx::TransactionId min_observed_tx_id{std::numeric_limits<uint64_t>::max()};
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std::vector<std::string> wal_entries;
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while (true) {
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auto delta = database::StateDelta::Decode(wal_reader, decoder);
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if (!delta) break;
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max_observed_tx_id = std::max(max_observed_tx_id, delta->transaction_id);
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min_observed_tx_id = std::min(min_observed_tx_id, delta->transaction_id);
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LOG(INFO) << "Found tx: " << delta->transaction_id << " "
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<< StateDeltaTypeToString(delta->type);
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}
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LOG(INFO) << "Min tx " << min_observed_tx_id;
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LOG(INFO) << "Max tx " << max_observed_tx_id;
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return 0;
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}
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