Initial commit

src/Gos.Services/Search/Aggregations/BaseAggregationProvider.cs

@@ -0,0 +1,36 @@
+using System.Collections.Generic;
+using Gos.Core.Search.Aggregations;
+using Gos.Core.Search.Queries;
+using Gos.ServiceModel.Enums;
+using Gos.ServiceModel.Types;
+
+namespace Gos.Services.Search.Aggregations
+{
+    public abstract class BaseAggregationProvider : IAggregationProvider
+    {
+        private readonly IAggregatorFactory aggregatorFactory;
+
+        protected BaseAggregationProvider(IAggregatorFactory aggregatorFactory)
+        {
+            this.aggregatorFactory = aggregatorFactory;
+        }
+
+        public abstract AggregationType Type { get; }
+
+        public Aggregation Get<TQuery>(TQuery query)
+            where TQuery : Query
+        {
+            // Run aggregator
+            var aggregator = aggregatorFactory.GetAggregator(Type);
+            var items = aggregator.Get(query);
+
+            return new Aggregation()
+            {
+                Items = GetItems(items),
+                Type = Type,
+            };
+        }
+
+        protected abstract List<AggregationItem> GetItems(IDictionary<string, int> items);
+    }
+}