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package org.apache.lucene.benchmark.byTask.feeds;
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import org.apache.lucene.analysis.Analyzer;
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import org.apache.lucene.queryParser.QueryParser;
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import org.apache.lucene.queryParser.ParseException;
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import org.apache.lucene.search.Query;
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import org.apache.lucene.benchmark.byTask.tasks.NewAnalyzerTask;
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import org.apache.lucene.util.Version;
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import java.util.ArrayList;
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import java.util.List;
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* Copyright 2004 The Apache Software Foundation
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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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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* Create queries from a FileReader. One per line, pass them through the
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* QueryParser. Lines beginning with # are treated as comments
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* File can be specified as a absolute, relative or resource.
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* Two properties can be set:
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* file.query.maker.file=<Full path to file containing queries>
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* file.query.maker.default.field=<Name of default field - Default value is "body">
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* file.query.maker.file=c:/myqueries.txt
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* file.query.maker.default.field=body
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public class FileBasedQueryMaker extends AbstractQueryMaker {
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protected Query[] prepareQueries() throws Exception {
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Analyzer anlzr = NewAnalyzerTask.createAnalyzer(config.get("analyzer",
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"org.apache.lucene.analysis.standard.StandardAnalyzer"));
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String defaultField = config.get("file.query.maker.default.field", DocMaker.BODY_FIELD);
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QueryParser qp = new QueryParser(Version.LUCENE_CURRENT, defaultField, anlzr);
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qp.setAllowLeadingWildcard(true);
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List<Query> qq = new ArrayList<Query>();
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String fileName = config.get("file.query.maker.file", null);
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File file = new File(fileName);
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reader = new FileReader(file);
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//see if we can find it as a resource
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InputStream asStream = FileBasedQueryMaker.class.getClassLoader().getResourceAsStream(fileName);
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if (asStream != null) {
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reader = new InputStreamReader(asStream);
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BufferedReader buffered = new BufferedReader(reader);
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while ((line = buffered.readLine()) != null) {
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if (line.length() != 0 && !line.startsWith("#")) {
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qq.add(qp.parse(line));
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} catch (ParseException e) {
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System.err.println("Exception: " + e.getMessage() + " occurred while parsing line: " + lineNum + " Text: " + line);
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System.err.println("No Reader available for: " + fileName);
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return qq.toArray(new Query[qq.size()]) ;