| /* |
| * 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.benchmark.quality.utils; |
| |
| import org.apache.lucene.analysis.standard.StandardAnalyzer; |
| import org.apache.lucene.benchmark.quality.QualityQuery; |
| import org.apache.lucene.benchmark.quality.QualityQueryParser; |
| import org.apache.lucene.queryparser.classic.ParseException; |
| import org.apache.lucene.queryparser.classic.QueryParser; |
| import org.apache.lucene.queryparser.classic.QueryParserBase; |
| import org.apache.lucene.search.BooleanClause; |
| import org.apache.lucene.search.BooleanQuery; |
| import org.apache.lucene.search.Query; |
| |
| /** |
| * Simplistic quality query parser. A Lucene query is created by passing the value of the specified |
| * QualityQuery name-value pair(s) into a Lucene's QueryParser using StandardAnalyzer. |
| */ |
| public class SimpleQQParser implements QualityQueryParser { |
| |
| private String qqNames[]; |
| private String indexField; |
| ThreadLocal<QueryParser> queryParser = new ThreadLocal<>(); |
| |
| /** |
| * Constructor of a simple qq parser. |
| * |
| * @param qqNames name-value pairs of quality query to use for creating the query |
| * @param indexField corresponding index field |
| */ |
| public SimpleQQParser(String qqNames[], String indexField) { |
| this.qqNames = qqNames; |
| this.indexField = indexField; |
| } |
| |
| /** |
| * Constructor of a simple qq parser. |
| * |
| * @param qqName name-value pair of quality query to use for creating the query |
| * @param indexField corresponding index field |
| */ |
| public SimpleQQParser(String qqName, String indexField) { |
| this(new String[] {qqName}, indexField); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.apache.lucene.benchmark.quality.QualityQueryParser#parse(org.apache.lucene.benchmark.quality.QualityQuery) |
| */ |
| @Override |
| public Query parse(QualityQuery qq) throws ParseException { |
| QueryParser qp = queryParser.get(); |
| if (qp == null) { |
| qp = new QueryParser(indexField, new StandardAnalyzer()); |
| queryParser.set(qp); |
| } |
| BooleanQuery.Builder bq = new BooleanQuery.Builder(); |
| for (int i = 0; i < qqNames.length; i++) |
| bq.add(qp.parse(QueryParserBase.escape(qq.getValue(qqNames[i]))), BooleanClause.Occur.SHOULD); |
| |
| return bq.build(); |
| } |
| } |