public MySqlTriggerListener()

in src/TriggersBinding/MySqlTriggerListener.cs [56:78]
20 lines of code
6 McCabe index (conditional complexity)

        public MySqlTriggerListener(string connectionString, string tableName, string userDefinedLeasesTableName, string userFunctionId, ITriggeredFunctionExecutor executor, MySqlOptions mysqlOptions, ILogger logger, IConfiguration configuration)
        {
            this._connectionString = !string.IsNullOrEmpty(connectionString) ? connectionString : throw new ArgumentNullException(nameof(connectionString));
            this._userTable = !string.IsNullOrEmpty(tableName) ? new MySqlObject(tableName) : throw new ArgumentNullException(nameof(tableName));
            this._userDefinedLeasesTableName = !string.IsNullOrEmpty(userDefinedLeasesTableName) ? new MySqlObject(userDefinedLeasesTableName).Name : userDefinedLeasesTableName;
            this._userFunctionId = !string.IsNullOrEmpty(userFunctionId) ? userFunctionId : throw new ArgumentNullException(nameof(userFunctionId));
            this._executor = executor ?? throw new ArgumentNullException(nameof(executor));
            this._mysqlOptions = mysqlOptions ?? throw new ArgumentNullException(nameof(mysqlOptions));
            this._logger = logger ?? throw new ArgumentNullException(nameof(logger));
            this._configuration = configuration ?? throw new ArgumentNullException(nameof(configuration));

            int? configuredMaxChangesPerWorker;
            // TODO: when we move to reading them exclusively from the host options, remove reading from settings.
            configuredMaxChangesPerWorker = configuration.GetValue<int?>(ConfigKey_MySqlTrigger_MaxChangesPerWorker);
            this._maxChangesPerWorker = configuredMaxChangesPerWorker ?? this._mysqlOptions.MaxChangesPerWorker;
            if (this._maxChangesPerWorker <= 0)
            {
                throw new InvalidOperationException($"Invalid value for configuration setting '{ConfigKey_MySqlTrigger_MaxChangesPerWorker}'. Ensure that the value is a positive integer.");
            }

            this._scaleMonitor = new MySqlTriggerScaleMonitor(this._userFunctionId, this._userTable, this._userDefinedLeasesTableName, this._connectionString, this._maxChangesPerWorker, this._logger);
            this._targetScaler = new MySqlTriggerTargetScaler(this._userFunctionId, this._userTable, this._userDefinedLeasesTableName, this._connectionString, this._maxChangesPerWorker, this._logger);
        }