public virtual async Task ConfigureAsync()

in MySQL.Data/src/Driver.cs [212:289]
57 lines of code
17 McCabe index (conditional complexity)

    public virtual async Task ConfigureAsync(MySqlConnection connection, bool execAsync, CancellationToken cancellationToken)
    {
      bool firstConfigure = false;

      // if we have not already configured our server variables
      // then do so now
      if (serverProps == null)
      {
        firstConfigure = true;

        // if we are in a pool and the user has said it's ok to cache the
        // properties, then grab it from the pool
        try
        {
          if (Pool != null && Settings.CacheServerProperties)
          {
            if (Pool.ServerProperties == null)
              Pool.ServerProperties = await LoadServerPropertiesAsync(connection, execAsync, cancellationToken).ConfigureAwait(false);
            serverProps = Pool.ServerProperties;
          }
          else
            serverProps = await LoadServerPropertiesAsync(connection, execAsync, cancellationToken).ConfigureAwait(false);

          await LoadCharacterSetsAsync(connection, execAsync, cancellationToken).ConfigureAwait(false);
        }
        catch (MySqlException ex)
        {
          // expired password capability
          if (ex.Number == 1820)
          {
            IsPasswordExpired = true;
            return;
          }
          throw;
        }
      }

      // if the user has indicated that we are not to reset
      // the connection and this is not our first time through,
      // then we are done.
      if (!Settings.ConnectionReset && !firstConfigure) return;

      string charSet = ConnectionString.CharacterSet;
      if (string.IsNullOrEmpty(charSet))
      {
        if (ConnectionCharSetIndex >= 0 && CharacterSets.ContainsKey(ConnectionCharSetIndex))
          charSet = CharacterSets[ConnectionCharSetIndex];
        else
          charSet = serverCharSet;
      }

      if (serverProps.ContainsKey("max_allowed_packet"))
        MaxPacketSize = Convert.ToInt64(serverProps["max_allowed_packet"]);

      // now tell the server which character set we will send queries in and which charset we
      // want results in
      MySqlCommand charSetCmd = new MySqlCommand("SET character_set_results=NULL",
        connection)
      { InternallyCreated = true };

      string clientCharSet;
      serverProps.TryGetValue("character_set_client", out clientCharSet);
      string connCharSet;
      serverProps.TryGetValue("character_set_connection", out connCharSet);
      if ((clientCharSet != null && clientCharSet.ToString() != charSet) ||
        (connCharSet != null && connCharSet.ToString() != charSet))
      {
        using MySqlCommand setNamesCmd = new MySqlCommand("SET NAMES " + charSet, connection);
        setNamesCmd.InternallyCreated = true;
        await setNamesCmd.ExecuteNonQueryAsync(execAsync, cancellationToken).ConfigureAwait(false);
      }
      // sets character_set_results to null to return values in their original character set
      await charSetCmd.ExecuteNonQueryAsync(execAsync, cancellationToken).ConfigureAwait(false);

      Encoding = CharSetMap.GetEncoding(charSet ?? "utf-8");

      handler.Configure();
    }