| using Lucene.Net.Analysis; |
| using Lucene.Net.Analysis.TokenAttributes; |
| using Lucene.Net.Index; |
| using Lucene.Net.Search; |
| using Lucene.Net.Util; |
| using NUnit.Framework; |
| |
| namespace Lucene.Net.QueryParsers.Classic |
| { |
| /* |
| * 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. |
| */ |
| |
| [TestFixture] |
| public class TestMultiPhraseQueryParsing_ : LuceneTestCase |
| { |
| private class TokenAndPos |
| { |
| public readonly string token; |
| public readonly int pos; |
| public TokenAndPos(string token, int pos) |
| { |
| this.token = token; |
| this.pos = pos; |
| } |
| } |
| |
| private class CannedAnalyzer : Analyzer |
| { |
| private readonly TokenAndPos[] tokens; |
| |
| public CannedAnalyzer(TokenAndPos[] tokens) |
| { |
| this.tokens = tokens; |
| } |
| |
| protected internal override TokenStreamComponents CreateComponents(string fieldName, System.IO.TextReader reader) |
| { |
| return new TokenStreamComponents(new CannedTokenizer(reader, tokens)); |
| } |
| } |
| |
| private class CannedTokenizer : Tokenizer |
| { |
| private readonly TokenAndPos[] tokens; |
| private int upto = 0; |
| private int lastPos = 0; |
| private readonly ICharTermAttribute termAtt; |
| private readonly IPositionIncrementAttribute posIncrAtt; |
| |
| public CannedTokenizer(System.IO.TextReader reader, TokenAndPos[] tokens) |
| : base(reader) |
| { |
| this.tokens = tokens; |
| this.termAtt = AddAttribute<ICharTermAttribute>(); |
| this.posIncrAtt = AddAttribute<IPositionIncrementAttribute>(); |
| } |
| |
| public override sealed bool IncrementToken() |
| { |
| ClearAttributes(); |
| if (upto < tokens.Length) |
| { |
| TokenAndPos token = tokens[upto++]; |
| termAtt.SetEmpty(); |
| termAtt.Append(token.token); |
| posIncrAtt.PositionIncrement = (token.pos - lastPos); |
| lastPos = token.pos; |
| return true; |
| } |
| else |
| { |
| return false; |
| } |
| } |
| public override void Reset() |
| { |
| base.Reset(); |
| this.upto = 0; |
| this.lastPos = 0; |
| } |
| } |
| |
| [Test] |
| public virtual void TestMultiPhraseQueryParsing() |
| { |
| TokenAndPos[] INCR_0_QUERY_TOKENS_AND = new TokenAndPos[] |
| { |
| new TokenAndPos("a", 0), |
| new TokenAndPos("1", 0), |
| new TokenAndPos("b", 1), |
| new TokenAndPos("1", 1), |
| new TokenAndPos("c", 2) |
| }; |
| |
| QueryParser qp = new QueryParser(TEST_VERSION_CURRENT, "field", new CannedAnalyzer(INCR_0_QUERY_TOKENS_AND)); |
| Query q = qp.Parse("\"this text is acually ignored\""); |
| assertTrue("wrong query type!", q is MultiPhraseQuery); |
| |
| MultiPhraseQuery multiPhraseQuery = new MultiPhraseQuery(); |
| multiPhraseQuery.Add(new Term[] { new Term("field", "a"), new Term("field", "1") }, -1); |
| multiPhraseQuery.Add(new Term[] { new Term("field", "b"), new Term("field", "1") }, 0); |
| multiPhraseQuery.Add(new Term[] { new Term("field", "c") }, 1); |
| |
| assertEquals(multiPhraseQuery, q); |
| } |
| } |
| } |