public async Task<EventStatsResult> GetOccurrenceStatsAsync(DateTime utcStart, DateTime utcEnd, string systemFilter, string userFilter = null, TimeSpan? displayTimeOffset = null, int desiredDataPoints = 100) {
if (!displayTimeOffset.HasValue)
displayTimeOffset = TimeSpan.Zero;
var filter = new ElasticQuery()
.WithSystemFilter(systemFilter)
.WithFilter(userFilter)
.WithDateRange(utcStart, utcEnd, EventIndex.Fields.PersistentEvent.Date)
.WithIndices(utcStart, utcEnd, $"'{_eventIndex.VersionedName}-'yyyyMM");
// if no start date then figure out first event date
if (!filter.DateRanges.First().UseStartDate) {
// TODO: Cache this to save an extra search request when a date range isn't filtered.
var result = await _elasticClient.SearchAsync<PersistentEvent>(s => s
.IgnoreUnavailable().Index(filter.Indices.Count > 0 ? String.Join(",", filter.Indices) : _eventIndex.AliasName)
.Query(d => _queryBuilder.BuildQuery<PersistentEvent>(filter))
.SortAscending(ev => ev.Date)
.Take(1)).AnyContext();
var firstEvent = result.Hits.FirstOrDefault();
if (firstEvent != null) {
utcStart = firstEvent.Source.Date.UtcDateTime;
filter.DateRanges.Clear();
filter.WithDateRange(utcStart, utcEnd, EventIndex.Fields.PersistentEvent.Date);
filter.Indices.Clear();
filter.WithIndices(utcStart, utcEnd, $"'{_eventIndex.VersionedName}-'yyyyMM");
}
}
utcStart = filter.DateRanges.First().GetStartDate();
utcEnd = filter.DateRanges.First().GetEndDate();
var interval = GetInterval(utcStart, utcEnd, desiredDataPoints);
var res = await _elasticClient.SearchAsync<PersistentEvent>(s => s
.SearchType(SearchType.Count)
.IgnoreUnavailable()
.Index(filter.Indices.Count > 0 ? String.Join(",", filter.Indices) : _eventIndex.AliasName)
.Query(_queryBuilder.BuildQuery<PersistentEvent>(filter))
.Aggregations(agg => agg
.DateHistogram("timelime", t => t
.Field(ev => ev.Date)
.MinimumDocumentCount(0)
.Interval(interval.Item1)
.Aggregations(agg2 => agg2
.Cardinality("tl_unique", u => u
.Field(ev => ev.StackId)
.PrecisionThreshold(100)
)
.Terms("tl_new", u => u
.Field(ev => ev.IsFirstOccurrence)
.Exclude("F")
)
)
.TimeZone(HoursAndMinutes(displayTimeOffset.Value))
)
.Cardinality("unique", u => u
.Field(ev => ev.StackId)
.PrecisionThreshold(100)
)
.Terms("new", u => u
.Field(ev => ev.IsFirstOccurrence)
.Exclude("F")
)
.Min("first_occurrence", t => t.Field(ev => ev.Date))
.Max("last_occurrence", t => t.Field(ev => ev.Date))
)
).AnyContext();
if (!res.IsValid) {
Logger.Error().Message("Retrieving stats failed: {0}", res.ServerError.Error).Write();
throw new ApplicationException("Retrieving stats failed.");
}
var newTerms = res.Aggs.Terms("new");
var stats = new EventStatsResult {
Total = res.Total,
New = newTerms != null && newTerms.Items.Count > 0 ? newTerms.Items[0].DocCount : 0
};
var unique = res.Aggs.Cardinality("unique");
if (unique?.Value != null)
stats.Unique = (long)unique.Value;
var timeline = res.Aggs.DateHistogram("timelime");
if (timeline != null) {
stats.Timeline.AddRange(timeline.Items.Select(i => {
long count = 0;
var timelineUnique = i.Cardinality("tl_unique");
if (timelineUnique?.Value != null)
count = (long)timelineUnique.Value;
var timelineNew = i.Terms("tl_new");
return new TimelineItem {
Date = i.Date,
Total = i.DocCount,
Unique = count,
New = timelineNew != null && timelineNew.Items.Count > 0 ? timelineNew.Items[0].DocCount : 0
};
}));
}
stats.Start = stats.Timeline.Count > 0 ? stats.Timeline.Min(tl => tl.Date).SafeAdd(displayTimeOffset.Value) : utcStart.SafeAdd(displayTimeOffset.Value);
stats.End = utcEnd.SafeAdd(displayTimeOffset.Value);
var totalHours = stats.End.Subtract(stats.Start).TotalHours;
if (totalHours > 0.0)
stats.AvgPerHour = stats.Total / totalHours;
if (stats.Timeline.Count <= 0)
return stats;
var firstOccurrence = res.Aggs.Min("first_occurrence");
if (firstOccurrence?.Value != null)
stats.FirstOccurrence = firstOccurrence.Value.Value.ToDateTime().SafeAdd(displayTimeOffset.Value);
var lastOccurrence = res.Aggs.Max("last_occurrence");
if (lastOccurrence?.Value != null)
stats.LastOccurrence = lastOccurrence.Value.Value.ToDateTime().SafeAdd(displayTimeOffset.Value);
return stats;
}
public EventStatsResult GetOccurrenceStats(DateTime utcStart, DateTime utcEnd, string systemFilter, string userFilter = null, TimeSpan? displayTimeOffset = null, int desiredDataPoints = 100) {
if (!displayTimeOffset.HasValue)
displayTimeOffset = TimeSpan.Zero;
var filter = new ElasticSearchOptions<PersistentEvent>()
.WithFilter(!String.IsNullOrEmpty(systemFilter) ? Filter<PersistentEvent>.Query(q => q.QueryString(qs => qs.DefaultOperator(Operator.And).Query(systemFilter))) : null)
.WithQuery(userFilter)
.WithDateRange(utcStart, utcEnd, "date")
.WithIndicesFromDateRange(String.Format("'{0}-'yyyyMM", _eventIndex.VersionedName));
// if no start date then figure out first event date
if (!filter.UseStartDate) {
// TODO: Cache this to save an extra search request when a date range isn't filtered.
_elasticClient.EnableTrace();
var result = _elasticClient.Search<PersistentEvent>(s => s
.IgnoreUnavailable().Index(filter.Indices.Count > 0 ? String.Join(",", filter.Indices) : _eventIndex.Name)
.Filter(d => filter.GetElasticSearchFilter())
.SortAscending(ev => ev.Date)
.Take(1));
_elasticClient.DisableTrace();
var firstEvent = result.Hits.FirstOrDefault();
if (firstEvent != null) {
utcStart = firstEvent.Source.Date.UtcDateTime;
filter.WithDateRange(utcStart, utcEnd, "date");
filter.WithIndicesFromDateRange(String.Format("'{0}-'yyyyMM", _eventIndex.VersionedName));
}
}
utcStart = filter.GetStartDate();
utcEnd = filter.GetEndDate();
var interval = GetInterval(utcStart, utcEnd, desiredDataPoints);
_elasticClient.EnableTrace();
var res = _elasticClient.Search<PersistentEvent>(s => s
.SearchType(SearchType.Count)
.IgnoreUnavailable()
.Index(filter.Indices.Count > 0 ? String.Join(",", filter.Indices) : _eventIndex.Name)
.Aggregations(agg => agg
.Filter("filtered", f => f
.Filter(d => filter.GetElasticSearchFilter())
.Aggregations(filteredAgg => filteredAgg
.DateHistogram("timelime", t => t
.Field(ev => ev.Date)
.MinimumDocumentCount(0)
.Interval(interval.Item1)
.Aggregations(agg2 => agg2
.Cardinality("tl_unique", u => u
.Field(ev => ev.StackId)
.PrecisionThreshold(100)
)
.Terms("tl_new", u => u
.Field(ev => ev.IsFirstOccurrence)
.Exclude("F")
)
)
.TimeZone(HoursAndMinutes(displayTimeOffset.Value))
)
.Cardinality("unique", u => u
.Field(ev => ev.StackId)
.PrecisionThreshold(100)
)
.Terms("new", u => u
.Field(ev => ev.IsFirstOccurrence)
.Exclude("F")
)
.Min("first_occurrence", t => t.Field(ev => ev.Date))
.Max("last_occurrence", t => t.Field(ev => ev.Date))
)
)
)
);
_elasticClient.DisableTrace();
if (!res.IsValid) {
Log.Error().Message("Retrieving stats failed: {0}", res.ServerError.Error).Write();
throw new ApplicationException("Retrieving stats failed.");
}
var filtered = res.Aggs.Filter("filtered");
if (filtered == null)
return new EventStatsResult();
var newTerms = filtered.Terms("new");
var stats = new EventStatsResult {
Total = filtered.DocCount,
New = newTerms != null && newTerms.Items.Count > 0 ? newTerms.Items[0].DocCount : 0
};
var unique = filtered.Cardinality("unique");
if (unique != null && unique.Value.HasValue)
stats.Unique = (long)unique.Value;
var timeline = filtered.DateHistogram("timelime");
if (timeline != null) {
stats.Timeline.AddRange(timeline.Items.Select(i => {
long count = 0;
var timelineUnique = i.Cardinality("tl_unique");
if (timelineUnique != null && timelineUnique.Value.HasValue)
count = (long)timelineUnique.Value;
var timelineNew = i.Terms("tl_new");
return new TimelineItem {
Date = i.Date,
Total = i.DocCount,
Unique = count,
New = timelineNew != null && timelineNew.Items.Count > 0 ? timelineNew.Items[0].DocCount : 0
};
}));
}
stats.Start = stats.Timeline.Count > 0 ? stats.Timeline.Min(tl => tl.Date).SafeAdd(displayTimeOffset.Value) : utcStart.SafeAdd(displayTimeOffset.Value);
stats.End = utcEnd.SafeAdd(displayTimeOffset.Value);
var totalHours = stats.End.Subtract(stats.Start).TotalHours;
if (totalHours > 0.0)
stats.AvgPerHour = stats.Total / totalHours;
if (stats.Timeline.Count <= 0)
return stats;
var firstOccurrence = filtered.Min("first_occurrence");
if (firstOccurrence != null && firstOccurrence.Value.HasValue)
stats.FirstOccurrence = firstOccurrence.Value.Value.ToDateTime().SafeAdd(displayTimeOffset.Value);
var lastOccurrence = filtered.Max("last_occurrence");
if (lastOccurrence != null && lastOccurrence.Value.HasValue)
stats.LastOccurrence = lastOccurrence.Value.Value.ToDateTime().SafeAdd(displayTimeOffset.Value);
return stats;
}
