| /* |
| * 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.geode.cache.lucene.internal; |
| |
| import java.io.IOException; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.apache.logging.log4j.Logger; |
| import org.apache.lucene.store.AlreadyClosedException; |
| |
| import org.apache.geode.InternalGemFireError; |
| import org.apache.geode.cache.CacheClosedException; |
| import org.apache.geode.cache.EntryDestroyedException; |
| import org.apache.geode.cache.Region; |
| import org.apache.geode.cache.RegionDestroyedException; |
| import org.apache.geode.cache.asyncqueue.AsyncEvent; |
| import org.apache.geode.cache.asyncqueue.AsyncEventListener; |
| import org.apache.geode.cache.lucene.internal.repository.IndexRepository; |
| import org.apache.geode.cache.lucene.internal.repository.RepositoryManager; |
| import org.apache.geode.internal.cache.BucketNotFoundException; |
| import org.apache.geode.internal.cache.EntrySnapshot; |
| import org.apache.geode.internal.cache.InternalCache; |
| import org.apache.geode.internal.cache.PrimaryBucketException; |
| import org.apache.geode.internal.logging.LogService; |
| |
| /** |
| * An Async event queue listener that writes all of the events in batches to Lucene |
| */ |
| public class LuceneEventListener implements AsyncEventListener { |
| |
| private static LuceneExceptionObserver exceptionObserver = exception -> { |
| }; |
| private InternalCache cache; |
| |
| private static final Logger logger = LogService.getLogger(); |
| |
| private final RepositoryManager repositoryManager; |
| |
| public LuceneEventListener(InternalCache cache, RepositoryManager repositoryManager) { |
| this.repositoryManager = repositoryManager; |
| this.cache = cache; |
| } |
| |
| @Override |
| public void close() {} |
| |
| void logDebugMessage(String msg, Exception e) { |
| logger.debug(msg, e); |
| } |
| |
| @Override |
| public boolean processEvents(List<AsyncEvent> events) { |
| try { |
| return process(events); |
| } catch (RuntimeException e) { |
| exceptionObserver.onException(e); |
| throw e; |
| } catch (Error e) { |
| exceptionObserver.onException(e); |
| throw e; |
| } |
| } |
| |
| protected boolean process(final List<AsyncEvent> events) { |
| // Try to get a PDX instance if possible, rather than a deserialized object |
| Boolean initialPdxReadSerialized = this.cache.getPdxReadSerializedOverride(); |
| cache.setPdxReadSerializedOverride(true); |
| |
| Set<IndexRepository> affectedRepos = new HashSet<>(); |
| |
| try { |
| for (AsyncEvent event : events) { |
| |
| Region region = event.getRegion(); |
| Object key = event.getKey(); |
| Object callbackArgument = event.getCallbackArgument(); |
| |
| IndexRepository repository = repositoryManager.getRepository(region, key, callbackArgument); |
| |
| Object value = getValue(region.getEntry(key)); |
| if (value != null) { |
| repository.update(key, value); |
| } else { |
| repository.delete(key); |
| } |
| |
| affectedRepos.add(repository); |
| } |
| |
| for (IndexRepository repo : affectedRepos) { |
| repo.commit(); |
| } |
| return true; |
| } catch (BucketNotFoundException | RegionDestroyedException | PrimaryBucketException e) { |
| logDebugMessage("Bucket not found while saving to lucene index: " + e.getMessage(), e); |
| return false; |
| } catch (CacheClosedException e) { |
| logDebugMessage("Unable to save to lucene index, cache has been closed", e); |
| return false; |
| } catch (AlreadyClosedException e) { |
| logDebugMessage("Unable to commit, the lucene index is already closed", e); |
| return false; |
| } catch (IOException e) { |
| throw new InternalGemFireError("Unable to save to lucene index", e); |
| } finally { |
| cache.setPdxReadSerializedOverride(initialPdxReadSerialized); |
| } |
| } |
| |
| private Object getValue(Region.Entry entry) { |
| final EntrySnapshot es = (EntrySnapshot) entry; |
| Object value; |
| try { |
| value = es == null ? null : es.getRawValue(true); |
| } catch (EntryDestroyedException e) { |
| value = null; |
| } |
| return value; |
| } |
| |
| public static void setExceptionObserver(LuceneExceptionObserver observer) { |
| if (observer == null) { |
| observer = exception -> { |
| }; |
| } |
| |
| exceptionObserver = observer; |
| } |
| |
| public static LuceneExceptionObserver getExceptionObserver() { |
| return exceptionObserver; |
| } |
| } |