private DayStackStats CreateBlankDayStackStats(DateTime occurrenceDate, string stackId, string projectId = null)
{
bool hasError = !String.IsNullOrEmpty(projectId);
// store stats in 15 minute buckets
var bucketCounts = new Dictionary <string, int>();
for (int i = 0; i < 1440; i += 15)
{
if (hasError && i == GetTimeBucket(occurrenceDate))
{
bucketCounts.Add(i.ToString("0000"), 1);
}
}
var s = new DayStackStats {
Id = GetDayStackStatsId(stackId, occurrenceDate),
ProjectId = projectId,
StackId = stackId,
Total = hasError ? 1 : 0,
MinuteStats = bucketCounts
};
return(s);
}
public StackStatsResult GetStackStatsByMinuteBlock(string stackId, TimeSpan utcOffset, DateTime?localStartDate = null, DateTime?localEndDate = null, DateTime?retentionStartDate = null)
{
// Round date range to blocks of 15 minutes since stats are per 15 minute block.
var range = GetDateRange(localStartDate, localEndDate, utcOffset, TimeSpan.FromMinutes(15));
if (range.Item1 == range.Item2)
{
return(new StackStatsResult());
}
DateTime utcStartDate = new DateTimeOffset(range.Item1.Ticks, utcOffset).UtcDateTime;
DateTime utcEndDate = new DateTimeOffset(range.Item2.Ticks, utcOffset).UtcDateTime;
var results = _dayStackStats.GetRange(GetDayStackStatsId(stackId, utcStartDate), GetDayStackStatsId(stackId, utcEndDate));
if (results.Count > 0)
{
DayStackStats firstWithOccurrence = results.OrderBy(r => r.Id).FirstOrDefault(r => r.MinuteStats.Any(ds => ds.Value > 0));
if (firstWithOccurrence != null)
{
DateTime firstErrorDate = firstWithOccurrence.GetDateFromMinuteStatKey(firstWithOccurrence.MinuteStats.OrderBy(ds => Int32.Parse(ds.Key)).First(ds => ds.Value > 0).Key);
if (utcStartDate < firstErrorDate)
{
utcStartDate = firstErrorDate;
}
}
}
var dayDocDates = new List <DateTime>();
DateTime currentDay = utcStartDate;
DateTime endOfDayEndDate = utcEndDate.ToEndOfDay();
while (currentDay <= endOfDayEndDate)
{
dayDocDates.Add(currentDay);
currentDay = currentDay.AddDays(1);
}
// add missing day documents
foreach (DateTime dayDocDate in dayDocDates)
{
if (!results.Any(d => d.Id == GetDayStackStatsId(stackId, dayDocDate)))
{
results.Add(CreateBlankDayStackStats(dayDocDate, stackId));
}
}
// fill out missing minute blocks with blank stats
foreach (DayStackStats r in results)
{
const int minuteBlocksInDay = 96;
for (int i = 0; i <= minuteBlocksInDay - 1; i++)
{
int minuteBlock = i * 15;
if (!r.MinuteStats.ContainsKey(minuteBlock.ToString("0000")))
{
r.MinuteStats.Add(minuteBlock.ToString("0000"), 0);
}
}
}
if (retentionStartDate.HasValue)
{
retentionStartDate = retentionStartDate.Value.Floor(TimeSpan.FromMinutes(15));
}
var minuteBlocks = new List <KeyValuePair <DateTime, int> >();
minuteBlocks = results.Aggregate(minuteBlocks, (current, result) => current.Concat(result.MinuteStats.ToDictionary(kvp => result.GetDateFromMinuteStatKey(kvp.Key), kvp => kvp.Value)).ToList())
.Where(kvp => kvp.Key >= utcStartDate && kvp.Key <= utcEndDate).OrderBy(kvp => kvp.Key).ToList();
int totalLimitedByPlan = retentionStartDate != null && utcStartDate < retentionStartDate?minuteBlocks.Count(kvp => kvp.Key < retentionStartDate) : 0;
if (totalLimitedByPlan > 0)
{
minuteBlocks = minuteBlocks.Where(kvp => kvp.Key >= retentionStartDate).ToList();
}
// group data points by a timespan to limit the number of returned data points
TimeSpan groupTimeSpan = TimeSpan.FromMinutes(15);
if (minuteBlocks.Count > 50)
{
DateTime first = minuteBlocks.Min(m => m.Key);
DateTime last = minuteBlocks.Max(m => m.Key);
TimeSpan span = last - first;
groupTimeSpan = TimeSpan.FromMinutes(((int)Math.Round(span.TotalMinutes / 50 / 15.0)) * 15);
}
var stats = new StackStatsResult {
TotalLimitedByPlan = totalLimitedByPlan,
StartDate = utcStartDate,
EndDate = utcEndDate,
Total = minuteBlocks.Sum(kvp => kvp.Value),
Stats = minuteBlocks.GroupBy(s => s.Key.Floor(groupTimeSpan)).Select(kvp => new DateStackStatsResult {
Date = kvp.Key,
Total = kvp.Sum(b => b.Value)
}).ToList()
};
stats.ApplyTimeOffset(utcOffset);
return(stats);
}