+++ /dev/null
-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.analysis.TokenStream;
-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.highlight.Highlighter;
-import org.apache.lucene.search.highlight.QueryScorer;
-import org.apache.lucene.search.highlight.SimpleHTMLFormatter;
-import org.apache.lucene.search.highlight.TextFragment;
-import org.apache.lucene.search.highlight.TokenSources;
-
-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.
- *
- * Uses the {@link org.apache.lucene.search.highlight.SimpleHTMLFormatter} for formatting.
- *
- * <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>mergeContiguous - true if contiguous fragments should be merged.</li>
- * <li>fields - The fields to highlight. If not specified all fields will be highlighted (or at least attempted)</li>
- * </ul>
- * Example:
- * <pre>"SearchHlgtSameRdr" SearchTravRetHighlight(size[10],highlight[10],mergeContiguous[true],maxFrags[3],fields[body]) > : 1000
- * </pre>
- *
- * Documents must be stored in order for this task to work. Additionally, term vector positions can be used as well.
- *
- * <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 SearchTravRetHighlightTask extends SearchTravTask {
-
- protected int numToHighlight = Integer.MAX_VALUE;
- protected boolean mergeContiguous;
- protected int maxFrags = 2;
- protected Set<String> paramFields = Collections.emptySet();
- protected Highlighter highlighter;
- protected int maxDocCharsToAnalyze;
-
- public SearchTravRetHighlightTask(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");
- }
- maxDocCharsToAnalyze = data.getConfig().get("highlighter.maxDocCharsToAnalyze", Highlighter.DEFAULT_MAX_CHARS_TO_ANALYZE);
- }
-
- @Override
- public boolean withRetrieve() {
- return true;
- }
-
- @Override
- public int numToHighlight() {
- return numToHighlight;
- }
-
- @Override
- protected BenchmarkHighlighter getBenchmarkHighlighter(Query q){
- highlighter = new Highlighter(new SimpleHTMLFormatter(), new QueryScorer(q));
- highlighter.setMaxDocCharsToAnalyze(maxDocCharsToAnalyze);
- return new BenchmarkHighlighter(){
- @Override
- public int doHighlight(IndexReader reader, int doc, String field,
- Document document, Analyzer analyzer, String text) throws Exception {
- TokenStream ts = TokenSources.getAnyTokenStream(reader, doc, field, document, analyzer);
- TextFragment[] frag = highlighter.getBestTextFragments(ts, text, mergeContiguous, maxFrags);
- return frag != null ? frag.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
- this.params = params;
- 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("mergeContiguous[") == true){
- mergeContiguous = Boolean.valueOf(splits[i].substring("mergeContiguous[".length(),splits[i].length() - 1)).booleanValue();
- } 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]);
- }
-
- }
- }
- }
-
-
-}
\ No newline at end of file
fnp / pylucene.git / blobdiff