| /* |
| * 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.trec; |
| |
| import java.io.BufferedReader; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| |
| import org.apache.lucene.benchmark.quality.QualityQuery; |
| |
| /** |
| * Read topics of TREC 1MQ track. |
| * <p> |
| * Expects this topic format - |
| * <pre> |
| * qnum:qtext |
| * </pre> |
| * Comment lines starting with '#' are ignored. |
| * <p> |
| * All topics will have a single name value pair. |
| */ |
| public class Trec1MQReader { |
| |
| private String name; |
| |
| /** |
| * Constructor for Trec's 1MQ TopicsReader |
| * @param name name of name-value pair to set for all queries. |
| */ |
| public Trec1MQReader(String name) { |
| super(); |
| this.name = name; |
| } |
| |
| /** |
| * Read quality queries from trec 1MQ format topics file. |
| * @param reader where queries are read from. |
| * @return the result quality queries. |
| * @throws IOException if cannot read the queries. |
| */ |
| public QualityQuery[] readQueries(BufferedReader reader) throws IOException { |
| ArrayList<QualityQuery> res = new ArrayList<>(); |
| String line; |
| try { |
| while (null!=(line=reader.readLine())) { |
| line = line.trim(); |
| if (line.startsWith("#")) { |
| continue; |
| } |
| // id |
| int k = line.indexOf(":"); |
| String id = line.substring(0,k).trim(); |
| // qtext |
| String qtext = line.substring(k+1).trim(); |
| // we got a topic! |
| HashMap<String,String> fields = new HashMap<>(); |
| fields.put(name,qtext); |
| //System.out.println("id: "+id+" qtext: "+qtext+" line: "+line); |
| QualityQuery topic = new QualityQuery(id,fields); |
| res.add(topic); |
| } |
| } finally { |
| reader.close(); |
| } |
| // sort result array (by ID) |
| QualityQuery qq[] = res.toArray(new QualityQuery[0]); |
| Arrays.sort(qq); |
| return qq; |
| } |
| |
| } |