| using Lucene.Net.Diagnostics; |
| using Lucene.Net.Index; |
| using Lucene.Net.Util; |
| using System; |
| |
| namespace Lucene.Net.Search |
| { |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF 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. |
| */ |
| |
| /// <summary> |
| /// Wraps a <see cref="Scorer"/> with additional checks. </summary> |
| public class AssertingBulkScorer : BulkScorer |
| { |
| private static readonly VirtualMethod SCORE_COLLECTOR = new VirtualMethod(typeof(BulkScorer), "Score", typeof(ICollector)); |
| private static readonly VirtualMethod SCORE_COLLECTOR_RANGE = new VirtualMethod(typeof(BulkScorer), "Score", typeof(ICollector), typeof(int)); |
| |
| public static BulkScorer Wrap(Random random, BulkScorer other) |
| { |
| if (other == null || other is AssertingBulkScorer) |
| { |
| return other; |
| } |
| return new AssertingBulkScorer(random, other); |
| } |
| |
| public static bool ShouldWrap(BulkScorer inScorer) |
| { |
| return SCORE_COLLECTOR.IsOverriddenAsOf(inScorer.GetType()) || SCORE_COLLECTOR_RANGE.IsOverriddenAsOf(inScorer.GetType()); |
| } |
| |
| internal readonly Random random; |
| internal readonly BulkScorer @in; |
| |
| private AssertingBulkScorer(Random random, BulkScorer @in) |
| { |
| this.random = random; |
| this.@in = @in; |
| } |
| |
| public virtual BulkScorer In => @in; |
| |
| public override void Score(ICollector collector) |
| { |
| if (random.NextBoolean()) |
| { |
| try |
| { |
| bool remaining = @in.Score(collector, DocsEnum.NO_MORE_DOCS); |
| if (Debugging.AssertsEnabled) Debugging.Assert(!remaining); |
| } |
| #pragma warning disable 168 |
| catch (NotSupportedException e) |
| #pragma warning restore 168 |
| { |
| @in.Score(collector); |
| } |
| } |
| else |
| { |
| @in.Score(collector); |
| } |
| } |
| |
| public override bool Score(ICollector collector, int max) |
| { |
| return @in.Score(collector, max); |
| } |
| |
| public override string ToString() |
| { |
| return "AssertingBulkScorer(" + @in + ")"; |
| } |
| } |
| } |