Method LoadDsn

cpp/src/arrow/flight/sql/odbc/odbc_impl/config/configuration.cc:137–178

}

void Configuration::LoadDsn(const std::string& dsn) {
  // Read keys before reading DSN to minimized unexpected behavior from ODBC driver
  // managers.
  auto customKeys = ReadAllKeys(dsn);

  Set(FlightSqlConnection::DSN, dsn);
  Set(FlightSqlConnection::HOST, ReadDsnString(dsn, FlightSqlConnection::HOST));
  Set(FlightSqlConnection::PORT, ReadDsnString(dsn, FlightSqlConnection::PORT));
  Set(FlightSqlConnection::TOKEN, ReadDsnString(dsn, FlightSqlConnection::TOKEN));
  Set(FlightSqlConnection::UID, ReadDsnString(dsn, FlightSqlConnection::UID));
  Set(FlightSqlConnection::PWD, ReadDsnString(dsn, FlightSqlConnection::PWD));
  Set(FlightSqlConnection::TRUSTED_CERTS,
      ReadDsnString(dsn, FlightSqlConnection::TRUSTED_CERTS));

#ifdef __APPLE__
  // macOS iODBC treats non-empty defaults as the real values when reading from system
  // DSN, so we don't pass defaults on macOS.
  // GH-49387 TODO: enable default values on macOS
  Set(FlightSqlConnection::USE_ENCRYPTION,
      ReadDsnString(dsn, FlightSqlConnection::USE_ENCRYPTION));
  Set(FlightSqlConnection::USE_SYSTEM_TRUST_STORE,
      ReadDsnString(dsn, FlightSqlConnection::USE_SYSTEM_TRUST_STORE));
  Set(FlightSqlConnection::DISABLE_CERTIFICATE_VERIFICATION,
      ReadDsnString(dsn, FlightSqlConnection::DISABLE_CERTIFICATE_VERIFICATION));
#else
  // Windows and Linux
  Set(FlightSqlConnection::USE_ENCRYPTION,
      ReadDsnString(dsn, FlightSqlConnection::USE_ENCRYPTION, DEFAULT_ENABLE_ENCRYPTION));
  Set(FlightSqlConnection::USE_SYSTEM_TRUST_STORE,
      ReadDsnString(dsn, FlightSqlConnection::USE_SYSTEM_TRUST_STORE,
                    DEFAULT_USE_CERT_STORE));
  Set(FlightSqlConnection::DISABLE_CERTIFICATE_VERIFICATION,
      ReadDsnString(dsn, FlightSqlConnection::DISABLE_CERTIFICATE_VERIFICATION,
                    DEFAULT_DISABLE_CERT_VERIFICATION));
#endif  // __APPLE__

  RemoveAllKnownKeys(customKeys);
  for (auto key : customKeys) {
    std::string_view key_sv(key);
    Set(key, ReadDsnString(dsn, key_sv));
  }
}

void Configuration::Clear() { this->properties_.clear(); }