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[feat][broker][PIP-278] Support pluggable topic compaction service - …
…part1 (apache#20645)
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48 changes: 48 additions & 0 deletions
48
pulsar-broker/src/main/java/org/apache/pulsar/compaction/CompactionServiceFactory.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,48 @@ | ||
| /* | ||
| * 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; | ||
|
|
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| import com.google.common.annotations.Beta; | ||
| import java.util.concurrent.CompletableFuture; | ||
| import javax.annotation.Nonnull; | ||
| import org.apache.pulsar.broker.PulsarService; | ||
| import org.apache.pulsar.common.classification.InterfaceAudience; | ||
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| @Beta | ||
| @InterfaceAudience.Public | ||
| public interface CompactionServiceFactory extends AutoCloseable { | ||
|
|
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| /** | ||
| * Initialize the compaction service factory. | ||
| * | ||
| * @param pulsarService | ||
| * the pulsar service instance | ||
| * @return a future represents the initialization result | ||
| */ | ||
| CompletableFuture<Void> initialize(@Nonnull PulsarService pulsarService); | ||
|
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| /** | ||
| * Create a new topic compaction service for topic. | ||
| * | ||
| * @param topic | ||
| * the topic name | ||
| * @return a future represents the topic compaction service | ||
| */ | ||
| CompletableFuture<TopicCompactionService> newTopicCompactionService(@Nonnull String topic); | ||
| } |
84 changes: 84 additions & 0 deletions
84
pulsar-broker/src/main/java/org/apache/pulsar/compaction/PulsarCompactionServiceFactory.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| /* | ||
| * 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; | ||
|
|
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| 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 org.apache.pulsar.broker.PulsarServerException; | ||
| import org.apache.pulsar.broker.PulsarService; | ||
|
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| public class PulsarCompactionServiceFactory implements CompactionServiceFactory { | ||
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| private PulsarService pulsarService; | ||
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| private volatile Compactor compactor; | ||
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| @VisibleForTesting | ||
| public Compactor getCompactor() throws PulsarServerException { | ||
| if (compactor == null) { | ||
| synchronized (this) { | ||
| if (compactor == null) { | ||
| compactor = newCompactor(); | ||
| } | ||
| } | ||
| } | ||
| return compactor; | ||
| } | ||
|
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| @Nullable | ||
| public Compactor getNullableCompactor() { | ||
| return compactor; | ||
| } | ||
|
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| protected Compactor newCompactor() throws PulsarServerException { | ||
| return new TwoPhaseCompactor(pulsarService.getConfiguration(), | ||
| pulsarService.getClient(), pulsarService.getBookKeeperClient(), | ||
| pulsarService.getCompactorExecutor()); | ||
| } | ||
|
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| @Override | ||
| public CompletableFuture<Void> initialize(@Nonnull PulsarService pulsarService) { | ||
| Objects.requireNonNull(pulsarService); | ||
| this.pulsarService = pulsarService; | ||
| return CompletableFuture.completedFuture(null); | ||
| } | ||
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| @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); | ||
| } | ||
|
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| @Override | ||
| public void close() throws Exception { | ||
| // noop | ||
| } | ||
| } |
111 changes: 111 additions & 0 deletions
111
pulsar-broker/src/main/java/org/apache/pulsar/compaction/PulsarTopicCompactionService.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,111 @@ | ||
| /* | ||
| * 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; | ||
|
|
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| import static com.google.common.base.Preconditions.checkArgument; | ||
| import static org.apache.pulsar.compaction.CompactedTopicImpl.COMPACT_LEDGER_EMPTY; | ||
| import static org.apache.pulsar.compaction.CompactedTopicImpl.NEWER_THAN_COMPACTED; | ||
| import static org.apache.pulsar.compaction.CompactedTopicImpl.findStartPoint; | ||
| import java.util.Collections; | ||
| import java.util.List; | ||
| import java.util.NoSuchElementException; | ||
| import java.util.Objects; | ||
| import java.util.concurrent.CompletableFuture; | ||
| import java.util.function.Supplier; | ||
| import javax.annotation.Nonnull; | ||
| import org.apache.bookkeeper.client.BookKeeper; | ||
| import org.apache.bookkeeper.mledger.Entry; | ||
| import org.apache.bookkeeper.mledger.Position; | ||
| import org.apache.bookkeeper.mledger.impl.PositionImpl; | ||
| import org.apache.pulsar.common.util.FutureUtil; | ||
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| public class PulsarTopicCompactionService implements TopicCompactionService { | ||
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| private final String topic; | ||
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| private final CompactedTopicImpl compactedTopic; | ||
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| private final Supplier<Compactor> compactorSupplier; | ||
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| public PulsarTopicCompactionService(String topic, BookKeeper bookKeeper, | ||
| Supplier<Compactor> compactorSupplier) { | ||
| this.topic = topic; | ||
| this.compactedTopic = new CompactedTopicImpl(bookKeeper); | ||
| this.compactorSupplier = compactorSupplier; | ||
| } | ||
|
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| @Override | ||
| public CompletableFuture<Void> compact() { | ||
| Compactor compactor; | ||
| try { | ||
| compactor = compactorSupplier.get(); | ||
| } catch (Throwable e) { | ||
| return CompletableFuture.failedFuture(e); | ||
| } | ||
| return compactor.compact(topic).thenApply(x -> null); | ||
| } | ||
|
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| @Override | ||
| public CompletableFuture<List<Entry>> readCompactedEntries(@Nonnull Position startPosition, | ||
| int numberOfEntriesToRead) { | ||
| Objects.requireNonNull(startPosition); | ||
| checkArgument(numberOfEntriesToRead > 0); | ||
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| CompletableFuture<List<Entry>> resultFuture = new CompletableFuture<>(); | ||
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| Objects.requireNonNull(compactedTopic.getCompactedTopicContextFuture()).thenCompose( | ||
| (context) -> findStartPoint((PositionImpl) startPosition, context.ledger.getLastAddConfirmed(), | ||
| context.cache).thenCompose((startPoint) -> { | ||
| if (startPoint == COMPACT_LEDGER_EMPTY || startPoint == NEWER_THAN_COMPACTED) { | ||
| return CompletableFuture.completedFuture(Collections.emptyList()); | ||
| } | ||
| long endPoint = | ||
| Math.min(context.ledger.getLastAddConfirmed(), startPoint + numberOfEntriesToRead); | ||
| return CompactedTopicImpl.readEntries(context.ledger, startPoint, endPoint); | ||
| })).whenComplete((result, ex) -> { | ||
| if (ex == null) { | ||
| resultFuture.complete(result); | ||
| } else { | ||
| ex = FutureUtil.unwrapCompletionException(ex); | ||
| if (ex instanceof NoSuchElementException) { | ||
| resultFuture.complete(Collections.emptyList()); | ||
| } else { | ||
| resultFuture.completeExceptionally(ex); | ||
| } | ||
| } | ||
| }); | ||
|
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| return resultFuture; | ||
| } | ||
|
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| @Override | ||
| public CompletableFuture<Entry> readLastCompactedEntry() { | ||
| return compactedTopic.readLastEntryOfCompactedLedger(); | ||
| } | ||
|
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| @Override | ||
| public CompletableFuture<Position> getLastCompactedPosition() { | ||
| return CompletableFuture.completedFuture(compactedTopic.getCompactionHorizon().orElse(null)); | ||
| } | ||
|
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| public CompactedTopicImpl getCompactedTopic() { | ||
| return compactedTopic; | ||
| } | ||
| } |
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