private Aggragtion[] MaxAggregation <T>(string field, SearchFilter[] filters = null, string indexName = "")
where T : class
{
indexName = CurrentIndexName(indexName);
var request = new SearchRequest <T>
{
Size = 0,
Aggregations = new MaxAggregation("agg_" + field, field)
};
AppendFilters <T>(request, filters);
var result = _client.Search <T>(request);
var aggHelper = result.Aggs.Average("agg_" + field);
List <Aggragtion> ret = new List <Aggragtion>();
var aggregation = new Aggragtion()
{
Field = field,
Result = aggHelper.Value != null ? (double)aggHelper.Value : 0,
Element = new Dictionary <string, object>()
};
aggregation.Element.Add(field, aggHelper.Value);
ret.Add(aggregation);
return(ret.ToArray());
}
private Aggragtion[] CountAggregation <T>(string field, SearchFilter[] filters = null, string indexName = "")
where T : class
{
indexName = CurrentIndexName(indexName);
var request = new SearchRequest <T>
{
Size = 0,
Aggregations = new TermsAggregation("agg_" + field)
{
Field = field, Size = 1000
}
};
AppendFilters <T>(request, filters);
var result = _client.Search <T>(request);
var aggHelper = result.Aggs.Terms("agg_" + field);
List <Aggragtion> ret = new List <Aggragtion>();
foreach (var bucket in aggHelper.Buckets)
{
var aggregation = new Aggragtion()
{
Field = field,
Result = bucket.DocCount != null ? (long)bucket.DocCount : 0,
Element = new Dictionary <string, object>()
};
aggregation.Element.Add(field, bucket.Key);
ret.Add(aggregation);
}
return(ret.ToArray());
}
