| using J2N.Threading.Atomic; |
| using Lucene.Net.Analysis; |
| using Lucene.Net.Documents; |
| using Lucene.Net.Index.Extensions; |
| using Lucene.Net.Store; |
| using Lucene.Net.Util; |
| using System; |
| |
| #if TESTFRAMEWORK_MSTEST |
| using Test = Microsoft.VisualStudio.TestTools.UnitTesting.TestMethodAttribute; |
| #elif TESTFRAMEWORK_NUNIT |
| using Test = NUnit.Framework.TestAttribute; |
| #elif TESTFRAMEWORK_XUNIT |
| using Test = Lucene.Net.TestFramework.SkippableFactAttribute; |
| #endif |
| |
| namespace Lucene.Net.Index |
| { |
| /* |
| * 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> |
| /// Base test case for <see cref="Index.MergePolicy"/>. |
| /// </summary> |
| public abstract class BaseMergePolicyTestCase : LuceneTestCase |
| #if TESTFRAMEWORK_XUNIT |
| , Xunit.IClassFixture<BeforeAfterClass> |
| { |
| public BaseMergePolicyTestCase(BeforeAfterClass beforeAfter) |
| : base(beforeAfter) |
| { |
| } |
| #else |
| { |
| #endif |
| /// <summary> |
| /// Create a new <see cref="Index.MergePolicy"/> instance. </summary> |
| new protected abstract MergePolicy NewMergePolicy(); // LUCENENET specific - renamed from MergePolicy() to be consistent |
| |
| [Test] |
| public virtual void TestForceMergeNotNeeded() |
| { |
| using Directory dir = NewDirectory(); |
| AtomicBoolean mayMerge = new AtomicBoolean(true); |
| MergeScheduler mergeScheduler = new SerialMergeSchedulerAnonymousInnerClassHelper(mayMerge); |
| using IndexWriter writer = new IndexWriter(dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random)).SetMergeScheduler(mergeScheduler).SetMergePolicy(NewMergePolicy())); |
| writer.Config.MergePolicy.NoCFSRatio = Random.NextBoolean() ? 0 : 1; |
| int numSegments = TestUtil.NextInt32(Random, 2, 20); |
| for (int i = 0; i < numSegments; ++i) |
| { |
| int numDocs = TestUtil.NextInt32(Random, 1, 5); |
| for (int j = 0; j < numDocs; ++j) |
| { |
| writer.AddDocument(new Document()); |
| } |
| writer.GetReader().Dispose(); |
| } |
| for (int i = 5; i >= 0; --i) |
| { |
| int segmentCount = writer.SegmentCount; |
| int maxNumSegments = i == 0 ? 1 : TestUtil.NextInt32(Random, 1, 10); |
| mayMerge.Value = (segmentCount > maxNumSegments); |
| writer.ForceMerge(maxNumSegments); |
| } |
| } |
| |
| private class SerialMergeSchedulerAnonymousInnerClassHelper : SerialMergeScheduler |
| { |
| private readonly AtomicBoolean mayMerge; |
| |
| public SerialMergeSchedulerAnonymousInnerClassHelper(AtomicBoolean mayMerge) |
| { |
| this.mayMerge = mayMerge; |
| } |
| |
| public override void Merge(IndexWriter writer, MergeTrigger trigger, bool newMergesFound) |
| { |
| lock (this) |
| { |
| if (!mayMerge.Value && writer.NextMerge() != null) |
| { |
| throw new InvalidOperationException(); |
| } |
| base.Merge(writer, trigger, newMergesFound); |
| } |
| } |
| } |
| } |
| } |