zymap commented on a change in pull request #8744: URL: https://github.com/apache/pulsar/pull/8744#discussion_r534629505
########## File path: pulsar-package-management/bookkeeper-storage/src/main/java/org/apache/pulsar/packages/management/storage/bookkeeper/BookKeeperPackagesStorage.java ########## @@ -0,0 +1,176 @@ +/** + * 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.packages.management.storage.bookkeeper; + +import com.google.common.base.Strings; +import java.io.IOException; +import java.io.InputStream; +import java.io.OutputStream; +import java.net.URI; +import java.util.ArrayList; +import java.util.List; +import java.util.concurrent.CompletableFuture; +import lombok.extern.slf4j.Slf4j; +import org.apache.distributedlog.DistributedLogConfiguration; +import org.apache.distributedlog.DistributedLogConstants; +import org.apache.distributedlog.api.DistributedLogManager; +import org.apache.distributedlog.api.namespace.Namespace; +import org.apache.distributedlog.api.namespace.NamespaceBuilder; +import org.apache.distributedlog.exceptions.ZKException; +import org.apache.distributedlog.impl.metadata.BKDLConfig; +import org.apache.distributedlog.metadata.DLMetadata; +import org.apache.distributedlog.namespace.NamespaceDriver; +import org.apache.pulsar.packages.management.core.PackagesStorage; +import org.apache.pulsar.packages.management.core.PackagesStorageConfiguration; +import org.apache.zookeeper.KeeperException; + + +/** + * Packages management storage implementation with bookkeeper. + */ +@Slf4j +public class BookKeeperPackagesStorage implements PackagesStorage { + + private final static String NS_CLIENT_ID = "packages-management"; + final BookKeeperPackagesStorageConfiguration configuration; + private Namespace namespace; + + BookKeeperPackagesStorage(PackagesStorageConfiguration configuration) { + this.configuration = new BookKeeperPackagesStorageConfiguration(configuration); + } + + @Override + public void initialize() { + DistributedLogConfiguration conf = new DistributedLogConfiguration() + .setImmediateFlushEnabled(true) + .setOutputBufferSize(0) + .setWriteQuorumSize(configuration.getNumReplicas()) + .setEnsembleSize(configuration.getNumReplicas()) + .setAckQuorumSize(configuration.getNumReplicas()) + .setLockTimeout(DistributedLogConstants.LOCK_IMMEDIATE); + if (!Strings.isNullOrEmpty(configuration.getBookkeeperClientAuthenticationPlugin())) { + conf.setProperty("bkc.clientAuthProviderFactoryClass", + configuration.getBookkeeperClientAuthenticationPlugin()); + if (!Strings.isNullOrEmpty(configuration.getBookkeeperClientAuthenticationParametersName())) { + conf.setProperty("bkc." + configuration.getBookkeeperClientAuthenticationParametersName(), + configuration.getBookkeeperClientAuthenticationParameters()); + } + } + try { + this.namespace = NamespaceBuilder.newBuilder() + .conf(conf).clientId(NS_CLIENT_ID).uri(initializeDlogNamespace()).build(); + } catch (IOException e) { + throw new RuntimeException("Initialize distributed log for packages management service failed.", e); + } + log.info("Packages management bookKeeper storage initialized successfully"); + } + + private URI initializeDlogNamespace() throws IOException { + BKDLConfig bkdlConfig = new BKDLConfig(configuration.getZkServers(), configuration.getLedgersRootPath()); + DLMetadata dlMetadata = DLMetadata.create(bkdlConfig); + URI dlogURI = URI.create(String.format("distributedlog://%s/pulsar/packages", configuration.getZkServers())); + try { + dlMetadata.create(dlogURI); + } catch (ZKException e) { + if (e.getKeeperExceptionCode() == KeeperException.Code.NODEEXISTS) { + return dlogURI; + } + } + return dlogURI; + } + + private CompletableFuture<DistributedLogManager> openLogManagerAsync(String path) { + CompletableFuture<DistributedLogManager> logFuture = new CompletableFuture<>(); + CompletableFuture.runAsync(() -> { + try { + logFuture.complete(namespace.openLog(path)); + } catch (IOException e) { + logFuture.completeExceptionally(e); + } + }); + return logFuture; + } + + @Override + public CompletableFuture<Void> writeAsync(String path, InputStream inputStream) { + return openLogManagerAsync(path) + .thenCompose(DLOutputStream::openWriterAsync) + .thenCompose(dlOutputStream -> dlOutputStream.writeAsync(inputStream)) + .thenCompose(DLOutputStream::closeAsync); + } + + @Override + public CompletableFuture<Void> readAsync(String path, OutputStream outputStream) { + return openLogManagerAsync(path) + .thenCompose(DLInputStream::openReaderAsync) + .thenCompose(dlInputStream -> dlInputStream.readAsync(outputStream)) + .thenCompose(DLInputStream::closeAsync); + } + + @Override + public CompletableFuture<Void> deleteAsync(String path) { + return namespace.getNamespaceDriver().getLogMetadataStore().getLogLocation(path) + .thenCompose(uri -> uri.map(value -> namespace.getNamespaceDriver() + .getLogStreamMetadataStore(NamespaceDriver.Role.WRITER).deleteLog(value, path)) + .orElse(null)); + } + + + @Override + public CompletableFuture<List<String>> listAsync(String path) { + return namespace.getNamespaceDriver().getLogMetadataStore().getLogs(path) + .thenApply(logs -> { + ArrayList<String> packages = new ArrayList<>(); + logs.forEachRemaining(packages::add); + return packages; + }); + } + + @Override + public CompletableFuture<Boolean> existAsync(String path) { + CompletableFuture<Boolean> result = new CompletableFuture<>(); + namespace.getNamespaceDriver().getLogMetadataStore().getLogLocation(path) + .whenComplete((uriOptional, throwable) -> { + if (throwable != null) { + result.complete(false); + return; + } + + if (uriOptional.isPresent()) { + namespace.getNamespaceDriver() + .getLogStreamMetadataStore(NamespaceDriver.Role.WRITER) + .logExists(uriOptional.get(), path) + .whenComplete((ignore, e) -> { + if (e != null) { + result.complete(false); + } else { + result.complete(true); + } + }); + } else { + result.complete(false); + } + }); + return result; } + + @Override + public CompletableFuture<Void> closeAsync() { + return CompletableFuture.runAsync(() -> this.namespace.close()); Review comment: It closed at here https://github.com/apache/pulsar/pull/8744/files#diff-eb374311109d385162c647fec67fb23820f28aa8fc11c58dbdff2c859a51639dR118 ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
