private void Validate(IEnumerable <Facet> facets)
{
foreach (var facet in facets)
{
if (FacetedQueryHelper.IsAggregationNumerical(facet.Aggregation) && FacetedQueryHelper.IsAggregationTypeNumerical(facet.AggregationType) && FacetedQueryHelper.GetSortOptionsForFacet(facet.AggregationField, _fields) == SortOptions.None)
{
throw new InvalidOperationException(string.Format("Index '{0}' does not have sorting enabled for a numerical field '{1}'.", _indexName, facet.AggregationField));
}
}
}
private void ApplyAggregation(Facet facet, FacetValue value, ArraySegment <int> docsInQuery, IndexReader indexReader, int docBase)
{
var sortOptionsForFacet = FacetedQueryHelper.GetSortOptionsForFacet(facet.AggregationField, _fields);
switch (sortOptionsForFacet)
{
case SortOptions.String:
case SortOptions.StringVal:
//case SortOptions.Custom: // TODO arek
case SortOptions.None:
throw new InvalidOperationException(string.Format("Cannot perform numeric aggregation on index field '{0}'. You must set the Sort mode of the field to Int, Float, Long or Double.", FacetedQueryHelper.TryTrimRangeSuffix(facet.AggregationField)));
case SortOptions.NumericLong:
var longs = FieldCache_Fields.DEFAULT.GetLongs(indexReader, facet.AggregationField);
for (int index = 0; index < docsInQuery.Count; index++)
{
var doc = docsInQuery.Array[index];
var currentVal = longs[doc - docBase];
if (facet.Aggregation.HasFlag(FacetAggregation.Max))
{
value.Max = Math.Max(value.Max ?? double.MinValue, currentVal);
}
if (facet.Aggregation.HasFlag(FacetAggregation.Min))
{
value.Min = Math.Min(value.Min ?? double.MaxValue, currentVal);
}
if (facet.Aggregation.HasFlag(FacetAggregation.Sum))
{
value.Sum = currentVal + (value.Sum ?? 0d);
}
if (facet.Aggregation.HasFlag(FacetAggregation.Average))
{
value.Average = currentVal + (value.Average ?? 0d);
}
}
break;
case SortOptions.NumericDouble:
var doubles = FieldCache_Fields.DEFAULT.GetDoubles(indexReader, facet.AggregationField);
for (int index = 0; index < docsInQuery.Count; index++)
{
var doc = docsInQuery.Array[index];
var currentVal = doubles[doc - docBase];
if (facet.Aggregation.HasFlag(FacetAggregation.Max))
{
value.Max = Math.Max(value.Max ?? double.MinValue, currentVal);
}
if (facet.Aggregation.HasFlag(FacetAggregation.Min))
{
value.Min = Math.Min(value.Min ?? double.MaxValue, currentVal);
}
if (facet.Aggregation.HasFlag(FacetAggregation.Sum))
{
value.Sum = currentVal + (value.Sum ?? 0d);
}
if (facet.Aggregation.HasFlag(FacetAggregation.Average))
{
value.Average = currentVal + (value.Average ?? 0d);
}
}
break;
default:
throw new ArgumentOutOfRangeException($"Not supported sort option for aggregation: {sortOptionsForFacet}");
}
}
