| using Lucene.Net.Attributes; |
| using Lucene.Net.Documents; |
| using Lucene.Net.Index.Extensions; |
| using Lucene.Net.Store; |
| using Lucene.Net.Util; |
| using NUnit.Framework; |
| using System; |
| using System.IO; |
| using Console = Lucene.Net.Util.SystemConsole; |
| |
| 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. |
| */ |
| |
| using Directory = Lucene.Net.Store.Directory; |
| using Document = Documents.Document; |
| using Field = Field; |
| using LuceneTestCase = Lucene.Net.Util.LuceneTestCase; |
| using MockAnalyzer = Lucene.Net.Analysis.MockAnalyzer; |
| using MockDirectoryWrapper = Lucene.Net.Store.MockDirectoryWrapper; |
| using RAMDirectory = Lucene.Net.Store.RAMDirectory; |
| |
| /// <summary> |
| /// Holds tests cases to verify external APIs are accessible |
| /// while not being in Lucene.Net.Index package. |
| /// </summary> |
| public class TestTaskMergeScheduler : LuceneTestCase |
| { |
| internal volatile bool mergeCalled; |
| internal volatile bool excCalled; |
| |
| private class MyMergeScheduler : TaskMergeScheduler |
| { |
| private readonly TestTaskMergeScheduler outerInstance; |
| |
| public MyMergeScheduler(TestTaskMergeScheduler outerInstance) |
| { |
| this.outerInstance = outerInstance; |
| } |
| |
| protected override void HandleMergeException(Exception t) |
| { |
| outerInstance.excCalled = true; |
| } |
| |
| public override void Merge(IndexWriter writer, MergeTrigger trigger, bool newMergesFound) |
| { |
| outerInstance.mergeCalled = true; |
| base.Merge(writer, trigger, newMergesFound); |
| } |
| } |
| |
| private class FailOnlyOnMerge : Failure |
| { |
| public override void Eval(MockDirectoryWrapper dir) |
| { |
| // LUCENENET specific: for these to work in release mode, we have added [MethodImpl(MethodImplOptions.NoInlining)] |
| // to each possible target of the StackTraceHelper. If these change, so must the attribute on the target methods. |
| if (StackTraceHelper.DoesStackTraceContainMethod("DoMerge")) |
| { |
| throw new IOException("now failing during merge"); |
| } |
| } |
| } |
| |
| [Test] |
| public void TestSubclassTaskMergeScheduler() |
| { |
| MockDirectoryWrapper dir = NewMockDirectory(); |
| dir.FailOn(new FailOnlyOnMerge()); |
| |
| Document doc = new Document(); |
| Field idField = NewStringField("id", "", Field.Store.YES); |
| doc.Add(idField); |
| |
| IndexWriter writer = new IndexWriter(dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random)).SetMergeScheduler(new MyMergeScheduler(this)).SetMaxBufferedDocs(2).SetRAMBufferSizeMB(IndexWriterConfig.DISABLE_AUTO_FLUSH).SetMergePolicy(NewLogMergePolicy())); |
| LogMergePolicy logMP = (LogMergePolicy)writer.Config.MergePolicy; |
| logMP.MergeFactor = 10; |
| for (int i = 0; i < 20; i++) |
| { |
| writer.AddDocument(doc); |
| } |
| |
| ((MyMergeScheduler)writer.Config.MergeScheduler).Sync(); |
| writer.Dispose(); |
| |
| assertTrue(mergeCalled); |
| dir.Dispose(); |
| } |
| |
| private class ReportingMergeScheduler : MergeScheduler |
| { |
| public override void Merge(IndexWriter writer, MergeTrigger trigger, bool newMergesFound) |
| { |
| MergePolicy.OneMerge merge = null; |
| while ((merge = writer.NextMerge()) != null) |
| { |
| if (Verbose) |
| { |
| Console.WriteLine("executing merge " + merge.SegString(writer.Directory)); |
| } |
| writer.Merge(merge); |
| } |
| } |
| |
| protected override void Dispose(bool disposing) |
| { |
| } |
| } |
| |
| [Test] |
| public void TestCustomMergeScheduler() |
| { |
| // we don't really need to execute anything, just to make sure the custom MS |
| // compiles. But ensure that it can be used as well, e.g., no other hidden |
| // dependencies or something. Therefore, don't use any random API ! |
| Directory dir = new RAMDirectory(); |
| IndexWriterConfig conf = new IndexWriterConfig(TEST_VERSION_CURRENT, null); |
| conf.SetMergeScheduler(new ReportingMergeScheduler()); |
| IndexWriter writer = new IndexWriter(dir, conf); |
| writer.AddDocument(new Document()); |
| writer.Commit(); // trigger flush |
| writer.AddDocument(new Document()); |
| writer.Commit(); // trigger flush |
| writer.ForceMerge(1); |
| writer.Dispose(); |
| dir.Dispose(); |
| } |
| |
| // LUCENENET-603 |
| [Test, LuceneNetSpecific] |
| public void TestExceptionOnBackgroundThreadIsPropagatedToCallingThread() |
| { |
| using MockDirectoryWrapper dir = NewMockDirectory(); |
| dir.FailOn(new FailOnlyOnMerge()); |
| |
| Document doc = new Document(); |
| Field idField = NewStringField("id", "", Field.Store.YES); |
| doc.Add(idField); |
| |
| var mergeScheduler = new TaskMergeScheduler(); |
| using IndexWriter writer = new IndexWriter(dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random)).SetMergeScheduler(mergeScheduler).SetMaxBufferedDocs(2).SetRAMBufferSizeMB(IndexWriterConfig.DISABLE_AUTO_FLUSH).SetMergePolicy(NewLogMergePolicy())); |
| LogMergePolicy logMP = (LogMergePolicy)writer.Config.MergePolicy; |
| logMP.MergeFactor = 10; |
| for (int i = 0; i < 20; i++) |
| { |
| writer.AddDocument(doc); |
| } |
| |
| bool exceptionHit = false; |
| try |
| { |
| mergeScheduler.Sync(); |
| } |
| catch (MergePolicy.MergeException) |
| { |
| exceptionHit = true; |
| } |
| |
| assertTrue(exceptionHit); |
| } |
| } |
| } |