| /* |
| * 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.pulsar.compaction; |
| |
| import com.google.common.annotations.VisibleForTesting; |
| import java.util.Objects; |
| import java.util.concurrent.CompletableFuture; |
| import java.util.concurrent.CompletionException; |
| import javax.annotation.Nonnull; |
| import javax.annotation.Nullable; |
| import lombok.AccessLevel; |
| import lombok.Getter; |
| import org.apache.pulsar.broker.PulsarServerException; |
| import org.apache.pulsar.broker.PulsarService; |
| |
| public class PulsarCompactionServiceFactory implements CompactionServiceFactory { |
| |
| @Getter(AccessLevel.PROTECTED) |
| private PulsarService pulsarService; |
| |
| private volatile Compactor compactor; |
| |
| @VisibleForTesting |
| public Compactor getCompactor() throws PulsarServerException { |
| if (compactor == null) { |
| synchronized (this) { |
| if (compactor == null) { |
| compactor = newCompactor(); |
| } |
| } |
| } |
| return compactor; |
| } |
| |
| @Nullable |
| public Compactor getNullableCompactor() { |
| return compactor; |
| } |
| |
| protected Compactor newCompactor() throws PulsarServerException { |
| return new TwoPhaseCompactor(pulsarService.getConfiguration(), |
| pulsarService.getClient(), pulsarService.getBookKeeperClient(), |
| pulsarService.getCompactorExecutor()); |
| } |
| |
| @Override |
| public CompletableFuture<Void> initialize(@Nonnull PulsarService pulsarService) { |
| Objects.requireNonNull(pulsarService); |
| this.pulsarService = pulsarService; |
| return CompletableFuture.completedFuture(null); |
| } |
| |
| @Override |
| public CompletableFuture<TopicCompactionService> newTopicCompactionService(@Nonnull String topic) { |
| Objects.requireNonNull(topic); |
| PulsarTopicCompactionService pulsarTopicCompactionService = |
| new PulsarTopicCompactionService(topic, pulsarService.getBookKeeperClient(), () -> { |
| try { |
| return this.getCompactor(); |
| } catch (Throwable e) { |
| throw new CompletionException(e); |
| } |
| }); |
| return CompletableFuture.completedFuture(pulsarTopicCompactionService); |
| } |
| |
| @Override |
| public void close() throws Exception { |
| // noop |
| } |
| } |