| /* |
| * 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; |
| |
| import java.io.Closeable; |
| import java.util.List; |
| |
| import com.google.common.collect.ImmutableList; |
| import org.apache.jackrabbit.oak.plugins.index.aggregate.AggregateIndex; |
| import org.apache.jackrabbit.oak.plugins.index.lucene.score.ScorerProviderFactory; |
| import org.apache.jackrabbit.oak.spi.commit.CommitInfo; |
| import org.apache.jackrabbit.oak.spi.commit.Observer; |
| import org.apache.jackrabbit.oak.spi.query.QueryIndex; |
| import org.apache.jackrabbit.oak.spi.query.QueryIndexProvider; |
| import org.apache.jackrabbit.oak.spi.state.NodeState; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * A provider for Lucene indexes. |
| * |
| * @see LuceneIndex |
| */ |
| public class LuceneIndexProvider implements QueryIndexProvider, Observer, Closeable { |
| |
| protected final IndexTracker tracker; |
| |
| protected volatile QueryIndex.NodeAggregator aggregator = null; |
| |
| ScorerProviderFactory scorerFactory; |
| |
| IndexAugmentorFactory augmentorFactory; |
| |
| public LuceneIndexProvider() { |
| this(new IndexTracker()); |
| } |
| |
| public LuceneIndexProvider(IndexCopier indexCopier) { |
| this(new IndexTracker(indexCopier)); |
| } |
| |
| public LuceneIndexProvider(IndexTracker tracker) { |
| this(tracker, ScorerProviderFactory.DEFAULT, null); |
| } |
| |
| public LuceneIndexProvider(IndexTracker tracker, ScorerProviderFactory scorerFactory, IndexAugmentorFactory augmentorFactory) { |
| this.tracker = tracker; |
| this.scorerFactory = scorerFactory; |
| this.augmentorFactory = augmentorFactory; |
| } |
| |
| public void close() { |
| tracker.close(); |
| } |
| |
| //----------------------------------------------------------< Observer >-- |
| |
| @Override |
| public void contentChanged(@NotNull NodeState root, @NotNull CommitInfo info) { |
| tracker.update(root); |
| } |
| |
| //------------------------------------------------< QueryIndexProvider >-- |
| |
| @Override @NotNull |
| public List<QueryIndex> getQueryIndexes(NodeState nodeState) { |
| return ImmutableList.<QueryIndex> of(new AggregateIndex(newLuceneIndex()), newLucenePropertyIndex()); |
| } |
| |
| protected LuceneIndex newLuceneIndex() { |
| return new LuceneIndex(tracker, aggregator); |
| } |
| |
| protected LucenePropertyIndex newLucenePropertyIndex() { |
| return new LucenePropertyIndex(tracker, scorerFactory, augmentorFactory); |
| } |
| |
| /** |
| * sets the default node aggregator that will be used at query time |
| * |
| * @param aggregator the node aggregator |
| */ |
| public void setAggregator(QueryIndex.NodeAggregator aggregator) { |
| this.aggregator = aggregator; |
| } |
| |
| // ----- helper builder method |
| |
| public LuceneIndexProvider with(QueryIndex.NodeAggregator analyzer) { |
| this.setAggregator(analyzer); |
| return this; |
| } |
| |
| IndexTracker getTracker() { |
| return tracker; |
| } |
| } |