102 lines
3.7 KiB
C#
102 lines
3.7 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 SimpleAnalyzer = Lucene.Net.Analysis.SimpleAnalyzer;
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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 IndexReader = Lucene.Net.Index.IndexReader;
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using IndexWriter = Lucene.Net.Index.IndexWriter;
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using Term = Lucene.Net.Index.Term;
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using TermEnum = Lucene.Net.Index.TermEnum;
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using RAMDirectory = Lucene.Net.Store.RAMDirectory;
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using LuceneTestCase = Lucene.Net.Util.LuceneTestCase;
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namespace Lucene.Net.Search
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{
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/// <summary>This class tests PhrasePrefixQuery class.</summary>
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[TestFixture]
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public class TestPhrasePrefixQuery:LuceneTestCase
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{
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/*public TestPhrasePrefixQuery(System.String name):base(name)
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{
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}*/
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/// <summary> </summary>
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[Test]
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public virtual void TestPhrasePrefix()
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{
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RAMDirectory indexStore = new RAMDirectory();
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IndexWriter writer = new IndexWriter(indexStore, new SimpleAnalyzer(), true, IndexWriter.MaxFieldLength.LIMITED);
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Document doc1 = new Document();
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Document doc2 = new Document();
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Document doc3 = new Document();
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Document doc4 = new Document();
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Document doc5 = new Document();
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doc1.Add(new Field("body", "blueberry pie", Field.Store.YES, Field.Index.ANALYZED));
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doc2.Add(new Field("body", "blueberry strudel", Field.Store.YES, Field.Index.ANALYZED));
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doc3.Add(new Field("body", "blueberry pizza", Field.Store.YES, Field.Index.ANALYZED));
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doc4.Add(new Field("body", "blueberry chewing gum", Field.Store.YES, Field.Index.ANALYZED));
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doc5.Add(new Field("body", "piccadilly circus", Field.Store.YES, Field.Index.ANALYZED));
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writer.AddDocument(doc1);
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writer.AddDocument(doc2);
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writer.AddDocument(doc3);
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writer.AddDocument(doc4);
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writer.AddDocument(doc5);
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writer.Optimize();
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writer.Close();
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IndexSearcher searcher = new IndexSearcher(indexStore, true);
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//PhrasePrefixQuery query1 = new PhrasePrefixQuery();
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MultiPhraseQuery query1 = new MultiPhraseQuery();
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//PhrasePrefixQuery query2 = new PhrasePrefixQuery();
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MultiPhraseQuery query2 = new MultiPhraseQuery();
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query1.Add(new Term("body", "blueberry"));
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query2.Add(new Term("body", "strawberry"));
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System.Collections.ArrayList termsWithPrefix = new System.Collections.ArrayList();
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IndexReader ir = IndexReader.Open(indexStore, true);
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// this TermEnum gives "piccadilly", "pie" and "pizza".
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System.String prefix = "pi";
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TermEnum te = ir.Terms(new Term("body", prefix + "*"));
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do
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{
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if (te.Term.Text.StartsWith(prefix))
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{
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termsWithPrefix.Add(te.Term);
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}
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}
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while (te.Next());
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query1.Add((Term[]) termsWithPrefix.ToArray(typeof(Term)));
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query2.Add((Term[]) termsWithPrefix.ToArray(typeof(Term)));
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ScoreDoc[] result;
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result = searcher.Search(query1, null, 1000).ScoreDocs;
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Assert.AreEqual(2, result.Length);
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result = searcher.Search(query2, null, 1000).ScoreDocs;
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Assert.AreEqual(0, result.Length);
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}
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}
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} |