/// <summary>
/// Private helper to get metric value.
/// </summary>
/// <param name="sqlDal">The SQL data access layer that will communicate with the SQL database.</param>
/// <param name="testName">The name of test for logging purposes.</param>
/// <param name="cmdType">The type of the commmand (text, stored procedure, or table direct).</param>
/// <param name="cmdText">command to run.</param>
/// <param name="date">The date of the metric.</param>
/// <param name="cmdTimeoutInSeconds">The command timeout in seconds.</param>
/// <returns>Task<System.Double>.</returns>
/// <exception cref="ArgumentException"></exception>
private static async Task <double> GetMetricValueAsDouble(ISqlDataAccessLayer sqlDal, string testName, CommandType cmdType,
string cmdText, DateTime date, int cmdTimeoutInSeconds)
{
var dateParam = new SqlParameter("@Date", SqlDbType.DateTime)
{
Value = date
};
var sqlCommand = sqlDal.CreateSqlCommand(cmdType, cmdText, new List <SqlParameter> {
dateParam
}, cmdTimeoutInSeconds);
var metricValue = await sqlDal.GetQueryResultAsDouble(sqlCommand, "MetricValue");
//var metricValue = await sqlDal.GetQueryResult(sqlCommand, "MetricValue", false);
//var metricValue = await sqlDal.GetQueryResult(sqlCommand, "MetricValue", Double.NaN);
// Throw an exception when either of the dates returns no metric value (Double.NaN)
if (Double.IsNaN(metricValue))
{
var msg = $"The database does not have metrics for the test {testName} for date {date}.";
throw new Exception(msg);
}
return(metricValue);
}
/// <summary>
/// Private helper to get metric value.
/// </summary>
/// <param name="sqlDal">The SQL data access layer that will communicate with the SQL database.</param>
/// <param name="testName">The name of test for logging purposes.</param>
/// <param name="cmdType">The type of the commmand (text, stored procedure, or table direct).</param>
/// <param name="cmdText">command to run.</param>
/// <param name="date">The date of the metric.</param>
/// <param name="cmdTimeoutInSeconds">The command timeout in seconds.</param>
/// <returns>Task<System.Double>.</returns>
/// <exception cref="ArgumentException"></exception>
private static async Task <bool> GetMetricValueAsBool(ISqlDataAccessLayer sqlDal, string testName, CommandType cmdType,
string cmdText, DateTime date, int cmdTimeoutInSeconds)
{
var dateParam = new SqlParameter("@Date", SqlDbType.DateTime)
{
Value = date
};
var sqlCommand = sqlDal.CreateSqlCommand(cmdType, cmdText, new List <SqlParameter> {
dateParam
}, cmdTimeoutInSeconds);
var metricValue = await sqlDal.GetQueryResultAsBool(sqlCommand, "MetricValue");
return(metricValue);
}