| package org.apache.lucene.benchmark.byTask.tasks; |
| |
| /** |
| * 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. |
| */ |
| |
| import org.apache.lucene.analysis.Analyzer; |
| import org.apache.lucene.benchmark.byTask.PerfRunData; |
| import org.apache.lucene.document.Document; |
| import org.apache.lucene.index.IndexReader; |
| import org.apache.lucene.search.Query; |
| import org.apache.lucene.search.vectorhighlight.FastVectorHighlighter; |
| import org.apache.lucene.search.vectorhighlight.FieldQuery; |
| |
| import java.util.Set; |
| import java.util.Collection; |
| import java.util.HashSet; |
| import java.util.Collections; |
| |
| /** |
| * Search and Traverse and Retrieve docs task. Highlight the fields in the retrieved documents by using FastVectorHighlighter. |
| * |
| * <p>Note: This task reuses the reader if it is already open. |
| * Otherwise a reader is opened at start and closed at the end. |
| * </p> |
| * |
| * <p>Takes optional multivalued, comma separated param string as: size[<traversal size>],highlight[<int>],maxFrags[<int>],mergeContiguous[<boolean>],fields[name1;name2;...]</p> |
| * <ul> |
| * <li>traversal size - The number of hits to traverse, otherwise all will be traversed</li> |
| * <li>highlight - The number of the hits to highlight. Will always be less than or equal to traversal size. Default is Integer.MAX_VALUE (i.e. hits.length())</li> |
| * <li>maxFrags - The maximum number of fragments to score by the highlighter</li> |
| * <li>fragSize - The length of fragments</li> |
| * <li>fields - The fields to highlight. If not specified all fields will be highlighted (or at least attempted)</li> |
| * </ul> |
| * Example: |
| * <pre>"SearchVecHlgtSameRdr" SearchTravRetVectorHighlight(size[10],highlight[10],maxFrags[3],fields[body]) > : 1000 |
| * </pre> |
| * |
| * Fields must be stored and term vector offsets and positions in order must be true for this task to work. |
| * |
| * <p>Other side effects: counts additional 1 (record) for each traversed hit, |
| * and 1 more for each retrieved (non null) document and 1 for each fragment returned.</p> |
| */ |
| public class SearchTravRetVectorHighlightTask extends SearchTravTask { |
| |
| protected int numToHighlight = Integer.MAX_VALUE; |
| protected int maxFrags = 2; |
| protected int fragSize = 100; |
| protected Set<String> paramFields = Collections.emptySet(); |
| protected FastVectorHighlighter highlighter; |
| |
| public SearchTravRetVectorHighlightTask(PerfRunData runData) { |
| super(runData); |
| } |
| |
| @Override |
| public void setup() throws Exception { |
| super.setup(); |
| //check to make sure either the doc is being stored |
| PerfRunData data = getRunData(); |
| if (data.getConfig().get("doc.stored", false) == false){ |
| throw new Exception("doc.stored must be set to true"); |
| } |
| if (data.getConfig().get("doc.term.vector.offsets", false) == false){ |
| throw new Exception("doc.term.vector.offsets must be set to true"); |
| } |
| if (data.getConfig().get("doc.term.vector.positions", false) == false){ |
| throw new Exception("doc.term.vector.positions must be set to true"); |
| } |
| } |
| |
| @Override |
| public boolean withRetrieve() { |
| return true; |
| } |
| |
| @Override |
| public int numToHighlight() { |
| return numToHighlight; |
| } |
| |
| @Override |
| protected BenchmarkHighlighter getBenchmarkHighlighter(Query q){ |
| highlighter = new FastVectorHighlighter( false, false ); |
| final FieldQuery fq = highlighter.getFieldQuery( q ); |
| return new BenchmarkHighlighter(){ |
| @Override |
| public int doHighlight(IndexReader reader, int doc, String field, |
| Document document, Analyzer analyzer, String text) throws Exception { |
| String[] fragments = highlighter.getBestFragments(fq, reader, doc, field, fragSize, maxFrags); |
| return fragments != null ? fragments.length : 0; |
| } |
| }; |
| } |
| |
| @Override |
| protected Collection<String> getFieldsToHighlight(Document document) { |
| Collection<String> result = super.getFieldsToHighlight(document); |
| //if stored is false, then result will be empty, in which case just get all the param fields |
| if (paramFields.isEmpty() == false && result.isEmpty() == false) { |
| result.retainAll(paramFields); |
| } else { |
| result = paramFields; |
| } |
| return result; |
| } |
| |
| @Override |
| public void setParams(String params) { |
| // can't call super because super doesn't understand our |
| // params syntax |
| final String [] splits = params.split(","); |
| for (int i = 0; i < splits.length; i++) { |
| if (splits[i].startsWith("size[") == true){ |
| traversalSize = (int)Float.parseFloat(splits[i].substring("size[".length(),splits[i].length() - 1)); |
| } else if (splits[i].startsWith("highlight[") == true){ |
| numToHighlight = (int)Float.parseFloat(splits[i].substring("highlight[".length(),splits[i].length() - 1)); |
| } else if (splits[i].startsWith("maxFrags[") == true){ |
| maxFrags = (int)Float.parseFloat(splits[i].substring("maxFrags[".length(),splits[i].length() - 1)); |
| } else if (splits[i].startsWith("fragSize[") == true){ |
| fragSize = (int)Float.parseFloat(splits[i].substring("fragSize[".length(),splits[i].length() - 1)); |
| } else if (splits[i].startsWith("fields[") == true){ |
| paramFields = new HashSet<String>(); |
| String fieldNames = splits[i].substring("fields[".length(), splits[i].length() - 1); |
| String [] fieldSplits = fieldNames.split(";"); |
| for (int j = 0; j < fieldSplits.length; j++) { |
| paramFields.add(fieldSplits[j]); |
| } |
| |
| } |
| } |
| } |
| } |