108 lines
3.4 KiB
C#
108 lines
3.4 KiB
C#
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System;
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using NUnit.Framework;
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using StandardAnalyzer = Lucene.Net.Analysis.Standard.StandardAnalyzer;
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using Document = Lucene.Net.Documents.Document;
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using Field = Lucene.Net.Documents.Field;
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using Directory = Lucene.Net.Store.Directory;
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using MockRAMDirectory = Lucene.Net.Store.MockRAMDirectory;
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using LuceneTestCase = Lucene.Net.Util.LuceneTestCase;
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namespace Lucene.Net.Index
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{
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[TestFixture]
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public class TestIndexWriterMerging:LuceneTestCase
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{
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/// <summary> Tests that index merging (specifically AddIndexesNoOptimize()) doesn't
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/// change the index order of documents.
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/// </summary>
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[Test]
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public virtual void TestLucene()
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{
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int num = 100;
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Directory indexA = new MockRAMDirectory();
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Directory indexB = new MockRAMDirectory();
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FillIndex(indexA, 0, num);
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Assert.IsFalse(VerifyIndex(indexA, 0), "Index a is invalid");
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FillIndex(indexB, num, num);
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Assert.IsFalse(VerifyIndex(indexB, num), "Index b is invalid");
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Directory merged = new MockRAMDirectory();
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IndexWriter writer = new IndexWriter(merged, new StandardAnalyzer(Util.Version.LUCENE_CURRENT), true, IndexWriter.MaxFieldLength.LIMITED);
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writer.MergeFactor = 2;
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writer.AddIndexesNoOptimize(new []{indexA, indexB});
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writer.Optimize();
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writer.Close();
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var fail = VerifyIndex(merged, 0);
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merged.Close();
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Assert.IsFalse(fail, "The merged index is invalid");
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}
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private bool VerifyIndex(Directory directory, int startAt)
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{
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bool fail = false;
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IndexReader reader = IndexReader.Open(directory, true);
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int max = reader.MaxDoc;
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for (int i = 0; i < max; i++)
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{
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Document temp = reader.Document(i);
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//System.out.println("doc "+i+"="+temp.getField("count").stringValue());
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//compare the index doc number to the value that it should be
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if (!temp.GetField("count").StringValue.Equals((i + startAt) + ""))
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{
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fail = true;
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System.Console.Out.WriteLine("Document " + (i + startAt) + " is returning document " + temp.GetField("count").StringValue);
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}
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}
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reader.Close();
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return fail;
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}
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private void FillIndex(Directory dir, int start, int numDocs)
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{
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IndexWriter writer = new IndexWriter(dir, new StandardAnalyzer(Util.Version.LUCENE_CURRENT), true, IndexWriter.MaxFieldLength.LIMITED);
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writer.MergeFactor = 2;
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writer.SetMaxBufferedDocs(2);
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for (int i = start; i < (start + numDocs); i++)
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{
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Document temp = new Document();
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temp.Add(new Field("count", ("" + i), Field.Store.YES, Field.Index.NOT_ANALYZED));
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writer.AddDocument(temp);
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}
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writer.Close();
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}
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}
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} |