| /* |
| * 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. |
| */ |
| package org.apache.lucene.queryparser.classic; |
| |
| import org.apache.lucene.analysis.Analyzer; |
| import org.apache.lucene.analysis.Tokenizer; |
| import org.apache.lucene.analysis.tokenattributes.CharTermAttribute; |
| import org.apache.lucene.analysis.tokenattributes.PositionIncrementAttribute; |
| import org.apache.lucene.index.Term; |
| import org.apache.lucene.search.MultiPhraseQuery; |
| import org.apache.lucene.search.Query; |
| import org.apache.lucene.util.LuceneTestCase; |
| |
| import java.io.IOException; |
| |
| public class TestMultiPhraseQueryParsing extends LuceneTestCase { |
| |
| private static class TokenAndPos { |
| public final String token; |
| public final int pos; |
| public TokenAndPos(String token, int pos) { |
| this.token = token; |
| this.pos = pos; |
| } |
| } |
| |
| private static class CannedAnalyzer extends Analyzer { |
| private final TokenAndPos[] tokens; |
| |
| public CannedAnalyzer(TokenAndPos[] tokens) { |
| this.tokens = tokens; |
| } |
| |
| @Override |
| public TokenStreamComponents createComponents(String fieldName) { |
| return new TokenStreamComponents(new CannedTokenizer(tokens)); |
| } |
| } |
| |
| private static class CannedTokenizer extends Tokenizer { |
| private final TokenAndPos[] tokens; |
| private int upto = 0; |
| private int lastPos = 0; |
| private final CharTermAttribute termAtt = addAttribute(CharTermAttribute.class); |
| private final PositionIncrementAttribute posIncrAtt = addAttribute(PositionIncrementAttribute.class); |
| |
| public CannedTokenizer(TokenAndPos[] tokens) { |
| super(); |
| this.tokens = tokens; |
| } |
| |
| @Override |
| public final boolean incrementToken() { |
| clearAttributes(); |
| if (upto < tokens.length) { |
| final TokenAndPos token = tokens[upto++]; |
| termAtt.setEmpty(); |
| termAtt.append(token.token); |
| posIncrAtt.setPositionIncrement(token.pos - lastPos); |
| lastPos = token.pos; |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| @Override |
| public void reset() throws IOException { |
| super.reset(); |
| this.upto = 0; |
| this.lastPos = 0; |
| } |
| } |
| |
| public void testMultiPhraseQueryParsing() throws Exception { |
| 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("field", new CannedAnalyzer(INCR_0_QUERY_TOKENS_AND)); |
| Query q = qp.parse("\"this text is acually ignored\""); |
| assertTrue("wrong query type!", q instanceof MultiPhraseQuery); |
| |
| MultiPhraseQuery.Builder multiPhraseQueryBuilder = new MultiPhraseQuery.Builder(); |
| multiPhraseQueryBuilder.add(new Term[]{ new Term("field", "a"), new Term("field", "1") }, -1); |
| multiPhraseQueryBuilder.add(new Term[]{ new Term("field", "b"), new Term("field", "1") }, 0); |
| multiPhraseQueryBuilder.add(new Term[]{ new Term("field", "c") }, 1); |
| |
| assertEquals(multiPhraseQueryBuilder.build(), q); |
| } |
| |
| } |