/// <summary>
/// Fetches the feed statistic of a specific feed.
/// </summary>
/// <param name="feed">The feed.</param>
/// <param name="useTableBuilder">If set to <c>true</c> use the feed tableBuilder to build an human readable output.</param>
private void FetchFeedStatisticNoLock(ScheduledStatisticFeed feed, bool useTableBuilder)
{
StatisticFeedDefinition feedDefinition = feed.StatisticFeedDefinition;
try
{
var newValues = new List <string?[]>();
List <object?[]>?statisticValues = feed.Source.GetStatisticFeedValues(feedDefinition.FeedId);
if (statisticValues != null)
{
foreach (object?[] values in statisticValues)
{
newValues.Add(feedDefinition.FieldsDefinition
.Select((field, index) => field.ValueFormatter?.Invoke((value: values[index], widthHint: field.WidthHint)) ?? values[index]?.ToString())
.ToArray()
);
}
}
if (useTableBuilder)
{
_logStringBuilder.AppendLine(feed.GetTabularFeed());
}
feed.SetLastResults(newValues);
}
catch (Exception ex)
{
_logger.LogDebug(ex, "Error generating statistics for {IStatisticFeedsProvider}", feed.Source.GetType().Name);
throw;
}
}
public ScheduledStatisticFeed(IStatisticFeedsProvider source, StatisticFeedDefinition statisticFeedDefinition)
{
Source = source ?? throw new ArgumentNullException(nameof(source));
StatisticFeedDefinition = statisticFeedDefinition ?? throw new ArgumentNullException(nameof(statisticFeedDefinition));
NextPlannedExecution = DateTime.Now + statisticFeedDefinition.FrequencyTarget;
_tableBuilder = CreateTableBuilder();
}
