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Implement BookkeeperBucketSnapshotStorage
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...roker/src/main/java/org/apache/pulsar/broker/delayed/BookkeeperBucketSnapshotStorage.java
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| /** | ||
| * 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.broker.delayed; | ||
|
|
||
| import java.io.IOException; | ||
| import java.util.ArrayList; | ||
| import java.util.Enumeration; | ||
| import java.util.List; | ||
| import java.util.Optional; | ||
| import java.util.concurrent.CompletableFuture; | ||
| import javax.validation.constraints.NotNull; | ||
| import org.apache.bookkeeper.client.BKException; | ||
| import org.apache.bookkeeper.client.BookKeeper; | ||
| import org.apache.bookkeeper.client.LedgerEntry; | ||
| import org.apache.bookkeeper.client.LedgerHandle; | ||
| import org.apache.pulsar.broker.PulsarService; | ||
| import org.apache.pulsar.broker.ServiceConfiguration; | ||
| import org.apache.pulsar.broker.delayed.proto.DelayedMessageIndexBucketSnapshotFormat.SnapshotMetadata; | ||
| import org.apache.pulsar.broker.delayed.proto.DelayedMessageIndexBucketSnapshotFormat.SnapshotSegment; | ||
| import org.apache.pulsar.common.util.FutureUtil; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
|
||
| public class BookkeeperBucketSnapshotStorage implements BucketSnapshotStorage { | ||
|
|
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| private static final Logger log = LoggerFactory.getLogger(BookkeeperBucketSnapshotStorage.class); | ||
| private static final byte[] LedgerPassword = "".getBytes(); | ||
|
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| private final PulsarService pulsar; | ||
| private final ServiceConfiguration config; | ||
| private BookKeeper bookKeeper; | ||
|
|
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| public BookkeeperBucketSnapshotStorage(PulsarService pulsar) { | ||
| this.pulsar = pulsar; | ||
| this.config = pulsar.getConfig(); | ||
| } | ||
|
|
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| @Override | ||
| public CompletableFuture<Long> createBucketSnapshot(SnapshotMetadata snapshotMetadata, | ||
| List<SnapshotSegment> bucketSnapshotSegments) { | ||
| return createLedger() | ||
| .thenCompose(ledgerHandle -> addEntry(ledgerHandle, snapshotMetadata.toByteArray()) | ||
| .thenApply(__ -> ledgerHandle)) | ||
| .thenCompose(ledgerHandle -> addSnapshotSegments(ledgerHandle, bucketSnapshotSegments) | ||
| .thenApply(__ -> ledgerHandle)) | ||
| .thenCompose(ledgerHandle -> closeLedger(ledgerHandle) | ||
| .thenApply(__ -> ledgerHandle.getId())); | ||
| } | ||
|
|
||
| @Override | ||
| public CompletableFuture<SnapshotMetadata> getBucketSnapshotMetadata(long bucketId) { | ||
| return openLedger(bucketId).thenCompose( | ||
| ledgerHandle -> getLedgerEntry(ledgerHandle, 0, 0). | ||
| thenCompose( | ||
| entryEnumeration -> parseSnapshotMetadataEntry(entryEnumeration.nextElement()))); | ||
| } | ||
|
|
||
| @Override | ||
| public CompletableFuture<List<SnapshotSegment>> getBucketSnapshotSegment(long bucketId, long firstSegmentEntryId, | ||
| long lastSegmentEntryId) { | ||
| return openLedger(bucketId).thenCompose( | ||
| ledgerHandle -> getLedgerEntry(ledgerHandle, firstSegmentEntryId, lastSegmentEntryId).thenCompose( | ||
| this::parseSnapshotSegmentEntries)); | ||
| } | ||
|
|
||
| @Override | ||
| public CompletableFuture<Long> getBucketSnapshotLength(long bucketId) { | ||
| return openLedger(bucketId).thenApply(ledgerHandle -> { | ||
| long length = ledgerHandle.getLength(); | ||
| closeLedger(ledgerHandle); | ||
| return length; | ||
| }); | ||
| } | ||
|
|
||
| @Override | ||
| public CompletableFuture<Void> deleteBucketSnapshot(long bucketId) { | ||
| return deleteLedger(bucketId); | ||
| } | ||
|
|
||
| @Override | ||
| public void start() throws Exception { | ||
| this.bookKeeper = pulsar.getBookKeeperClientFactory().create( | ||
| pulsar.getConfiguration(), | ||
| pulsar.getLocalMetadataStore(), | ||
| pulsar.getIoEventLoopGroup(), | ||
| Optional.empty(), | ||
| null | ||
| ); | ||
| } | ||
|
|
||
| @Override | ||
| public void close() throws Exception { | ||
| if (bookKeeper != null) { | ||
| bookKeeper.close(); | ||
| } | ||
| } | ||
|
|
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| private CompletableFuture<Void> addSnapshotSegments(LedgerHandle ledgerHandle, | ||
| List<SnapshotSegment> bucketSnapshotSegments) { | ||
| List<CompletableFuture<Void>> addFutures = new ArrayList<>(); | ||
| for (SnapshotSegment bucketSnapshotSegment : bucketSnapshotSegments) { | ||
| addFutures.add(addEntry(ledgerHandle, bucketSnapshotSegment.toByteArray())); | ||
| } | ||
|
|
||
| return FutureUtil.waitForAll(addFutures); | ||
| } | ||
|
|
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| private CompletableFuture<SnapshotMetadata> parseSnapshotMetadataEntry(LedgerEntry ledgerEntry) { | ||
| CompletableFuture<SnapshotMetadata> result = new CompletableFuture<>(); | ||
| try { | ||
| result.complete(SnapshotMetadata.parseFrom(ledgerEntry.getEntry())); | ||
| } catch (IOException e) { | ||
| result.completeExceptionally(e); | ||
| } | ||
| return result; | ||
| } | ||
|
|
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| private CompletableFuture<List<SnapshotSegment>> parseSnapshotSegmentEntries( | ||
| Enumeration<LedgerEntry> entryEnumeration) { | ||
| CompletableFuture<List<SnapshotSegment>> result = new CompletableFuture<>(); | ||
| List<SnapshotSegment> snapshotMetadataList = new ArrayList<>(); | ||
| try { | ||
| while (entryEnumeration.hasMoreElements()) { | ||
| LedgerEntry ledgerEntry = entryEnumeration.nextElement(); | ||
| snapshotMetadataList.add(SnapshotSegment.parseFrom(ledgerEntry.getEntry())); | ||
| } | ||
| result.complete(snapshotMetadataList); | ||
| } catch (IOException e) { | ||
| result.completeExceptionally(e); | ||
| } | ||
| return result; | ||
| } | ||
|
|
||
| @NotNull | ||
| private CompletableFuture<LedgerHandle> createLedger() { | ||
| CompletableFuture<LedgerHandle> future = new CompletableFuture<>(); | ||
| bookKeeper.asyncCreateLedger( | ||
| config.getManagedLedgerDefaultEnsembleSize(), | ||
| config.getManagedLedgerDefaultWriteQuorum(), | ||
| config.getManagedLedgerDefaultAckQuorum(), | ||
| BookKeeper.DigestType.fromApiDigestType(config.getManagedLedgerDigestType()), | ||
| LedgerPassword, | ||
| (rc, handle, ctx) -> { | ||
| if (rc != BKException.Code.OK) { | ||
| future.completeExceptionally(bkException("Failed to create ledger", rc, -1)); | ||
| } else { | ||
| future.complete(handle); | ||
| } | ||
| }, null, null); | ||
| return future; | ||
| } | ||
|
|
||
| private CompletableFuture<LedgerHandle> openLedger(Long ledgerId) { | ||
| final CompletableFuture<LedgerHandle> future = new CompletableFuture<>(); | ||
| bookKeeper.asyncOpenLedger( | ||
| ledgerId, | ||
| BookKeeper.DigestType.fromApiDigestType(config.getManagedLedgerDigestType()), | ||
| LedgerPassword, | ||
| (rc, handle, ctx) -> { | ||
| if (rc != BKException.Code.OK) { | ||
| future.completeExceptionally(bkException("Failed to open ledger", rc, ledgerId)); | ||
| } else { | ||
| future.complete(handle); | ||
| } | ||
| }, null | ||
| ); | ||
| return future; | ||
| } | ||
|
|
||
| private CompletableFuture<Void> closeLedger(LedgerHandle ledgerHandle) { | ||
| CompletableFuture<Void> future = new CompletableFuture<>(); | ||
| ledgerHandle.asyncClose((rc, handle, ctx) -> { | ||
| if (rc != BKException.Code.OK) { | ||
| log.warn("Failed to close a Ledger Handle: {}", ledgerHandle.getId()); | ||
| future.completeExceptionally(bkException("Failed to close ledger", rc, ledgerHandle.getId())); | ||
| } else { | ||
| future.complete(null); | ||
| } | ||
| }, null); | ||
| return future; | ||
| } | ||
|
|
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| private CompletableFuture<Void> addEntry(LedgerHandle ledgerHandle, byte[] data) { | ||
| final CompletableFuture<Void> future = new CompletableFuture<>(); | ||
| ledgerHandle.asyncAddEntry(data, | ||
| (rc, handle, entryId, ctx) -> { | ||
| if (rc != BKException.Code.OK) { | ||
| future.completeExceptionally(bkException("Failed to add entry", rc, ledgerHandle.getId())); | ||
| } else { | ||
| future.complete(null); | ||
| } | ||
| }, null | ||
| ); | ||
| return future; | ||
| } | ||
|
|
||
| CompletableFuture<Enumeration<LedgerEntry>> getLedgerEntry(LedgerHandle ledger, | ||
| long firstEntryId, long lastEntryId) { | ||
| final CompletableFuture<Enumeration<LedgerEntry>> future = new CompletableFuture<>(); | ||
| ledger.asyncReadEntries(firstEntryId, lastEntryId, | ||
| (rc, handle, entries, ctx) -> { | ||
| if (rc != BKException.Code.OK) { | ||
| future.completeExceptionally(bkException("Failed to read entry", rc, ledger.getId())); | ||
| } else { | ||
| future.complete(entries); | ||
| } | ||
| closeLedger(handle); | ||
| }, null | ||
| ); | ||
| return future; | ||
| } | ||
|
|
||
| private CompletableFuture<Void> deleteLedger(long ledgerId) { | ||
| CompletableFuture<Void> future = new CompletableFuture<>(); | ||
| bookKeeper.asyncDeleteLedger(ledgerId, (int rc, Object cnx) -> { | ||
| if (rc != BKException.Code.OK) { | ||
| future.completeExceptionally(bkException("Failed to delete ledger", rc, ledgerId)); | ||
| } else { | ||
| future.complete(null); | ||
| } | ||
| }, null); | ||
| return future; | ||
| } | ||
|
|
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| private static BucketSnapshotException bkException(String operation, int rc, long ledgerId) { | ||
| String message = BKException.getMessage(rc) | ||
| + " - ledger=" + ledgerId + " - operation=" + operation; | ||
| return new BucketSnapshotException(message); | ||
| } | ||
| } |
36 changes: 36 additions & 0 deletions
36
pulsar-broker/src/main/java/org/apache/pulsar/broker/delayed/BucketSnapshotException.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| /** | ||
| * 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.broker.delayed; | ||
|
|
||
| import org.apache.pulsar.broker.service.BrokerServiceException; | ||
|
|
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| public class BucketSnapshotException extends BrokerServiceException { | ||
|
|
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| public BucketSnapshotException(String msg) { | ||
| super(msg); | ||
| } | ||
|
|
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| public BucketSnapshotException(Throwable t) { | ||
| super(t); | ||
| } | ||
|
|
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| public BucketSnapshotException(String message, Throwable cause) { | ||
| super(message, cause); | ||
| } | ||
| } |
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