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TopHitsAggregate.cs
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TopHitsAggregate.cs
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/* SPDX-License-Identifier: Apache-2.0
*
* The OpenSearch Contributors require contributions made to
* this file be licensed under the Apache-2.0 license or a
* compatible open source license.
*/
/*
* Modifications Copyright OpenSearch Contributors. See
* GitHub history for details.
*
* Licensed to Elasticsearch B.V. under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch B.V. licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
using System.Collections.Generic;
using System.Linq;
using OpenSearch.Net.Utf8Json;
namespace OpenSearch.Client
{
public class TopHitsAggregate : MetricAggregateBase
{
private readonly IJsonFormatterResolver _formatterResolver;
private readonly IList<LazyDocument> _hits;
public TopHitsAggregate() { }
internal TopHitsAggregate(IList<LazyDocument> hits, IJsonFormatterResolver formatterResolver)
{
_hits = hits;
_formatterResolver = formatterResolver;
}
public double? MaxScore { get; set; }
public TotalHits Total { get; set; }
private IEnumerable<IHit<TDocument>> ConvertHits<TDocument>()
where TDocument : class
{
var formatter = _formatterResolver.GetFormatter<IHit<TDocument>>();
return _hits.Select(h =>
{
var reader = new JsonReader(h.Bytes);
return formatter.Deserialize(ref reader, _formatterResolver);
});
}
public IReadOnlyCollection<IHit<TDocument>> Hits<TDocument>()
where TDocument : class =>
ConvertHits<TDocument>().ToList().AsReadOnly();
public IReadOnlyCollection<TDocument> Documents<TDocument>() where TDocument : class =>
ConvertHits<TDocument>().Select(h => h.Source).ToList().AsReadOnly();
}
}