| /* |
| * 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.jackrabbit.oak.plugins.index.lucene.writer; |
| |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.jackrabbit.oak.plugins.index.lucene.LuceneIndexConstants; |
| import org.apache.jackrabbit.oak.plugins.index.lucene.LuceneIndexDefinition; |
| import org.apache.jackrabbit.oak.plugins.index.lucene.util.SuggestHelper; |
| import org.apache.jackrabbit.oak.plugins.index.lucene.util.fv.LSHAnalyzer; |
| import org.apache.jackrabbit.oak.plugins.index.search.FieldNames; |
| import org.apache.jackrabbit.oak.plugins.index.search.IndexDefinition; |
| import org.apache.jackrabbit.oak.plugins.index.search.PropertyDefinition; |
| import org.apache.lucene.analysis.Analyzer; |
| import org.apache.lucene.analysis.miscellaneous.PerFieldAnalyzerWrapper; |
| import org.apache.lucene.analysis.shingle.ShingleAnalyzerWrapper; |
| import org.apache.lucene.index.IndexWriterConfig; |
| import org.apache.lucene.index.SerialMergeScheduler; |
| |
| import static org.apache.jackrabbit.oak.plugins.index.lucene.LuceneIndexConstants.VERSION; |
| |
| public class IndexWriterUtils { |
| |
| public static IndexWriterConfig getIndexWriterConfig(LuceneIndexDefinition definition, boolean remoteDir){ |
| return getIndexWriterConfig(definition, remoteDir, new LuceneIndexWriterConfig()); |
| } |
| |
| public static IndexWriterConfig getIndexWriterConfig(LuceneIndexDefinition definition, boolean remoteDir, |
| LuceneIndexWriterConfig writerConfig) { |
| // FIXME: Hack needed to make Lucene work in an OSGi environment |
| Thread thread = Thread.currentThread(); |
| ClassLoader loader = thread.getContextClassLoader(); |
| thread.setContextClassLoader(IndexWriterConfig.class.getClassLoader()); |
| try { |
| Analyzer definitionAnalyzer = definition.getAnalyzer(); |
| Map<String, Analyzer> analyzers = new HashMap<String, Analyzer>(); |
| analyzers.put(FieldNames.SPELLCHECK, new ShingleAnalyzerWrapper(LuceneIndexConstants.ANALYZER, 3)); |
| for (IndexDefinition.IndexingRule r : definition.getDefinedRules()) { |
| List<PropertyDefinition> similarityProperties = r.getSimilarityProperties(); |
| for (PropertyDefinition pd : similarityProperties) { |
| if (pd.useInSimilarity) { |
| analyzers.put(FieldNames.createSimilarityFieldName(pd.name), new LSHAnalyzer()); |
| } |
| } |
| } |
| |
| if (!definition.isSuggestAnalyzed()) { |
| analyzers.put(FieldNames.SUGGEST, SuggestHelper.getAnalyzer()); |
| } |
| Analyzer analyzer = new PerFieldAnalyzerWrapper(definitionAnalyzer, analyzers); |
| IndexWriterConfig config = new IndexWriterConfig(VERSION, analyzer); |
| if (remoteDir) { |
| config.setMergeScheduler(new SerialMergeScheduler()); |
| } |
| if (definition.getCodec() != null) { |
| config.setCodec(definition.getCodec()); |
| } |
| config.setRAMBufferSizeMB(writerConfig.getRamBufferSizeMB()); |
| return config; |
| } finally { |
| thread.setContextClassLoader(loader); |
| } |
| } |
| } |