| /** |
| * 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.commons.lang3.StringUtils; |
| 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.client.internal.PropertiesUtils; |
| 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 static final String NS_CLIENT_ID = "packages-management"; |
| public static final String ZK_SCHEME_IDENTIFIER = "zk:"; |
| 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.getPackagesReplicas()) |
| .setEnsembleSize(configuration.getPackagesReplicas()) |
| .setAckQuorumSize(configuration.getPackagesReplicas()) |
| .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()); |
| } |
| } |
| // Map arbitrary bookkeeper client configuration into DLog Config. Note that this only configures the |
| // bookie client. |
| PropertiesUtils.filterAndMapProperties(configuration.getProperties(), "bookkeeper_", "bkc.") |
| .forEach((key, value) -> { |
| log.info("Applying DLog BookKeeper client configuration setting {}={}", key, value); |
| conf.setProperty(key, value); |
| }); |
| 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 { |
| String bookkeeperMetadataServiceUri = configuration.getProperty("bookkeeperMetadataServiceUri"); |
| String ledgersRootPath; |
| String ledgersStoreServers; |
| if (StringUtils.isNotBlank(bookkeeperMetadataServiceUri)) { |
| URI metadataServiceUri = URI.create(bookkeeperMetadataServiceUri); |
| ledgersStoreServers = metadataServiceUri.getAuthority().replace(";", ","); |
| ledgersRootPath = metadataServiceUri.getPath(); |
| } else { |
| ledgersRootPath = configuration.getPackagesManagementLedgerRootPath(); |
| if (StringUtils.isNotBlank(configuration.getMetadataStoreUrl())) { |
| ledgersStoreServers = configuration.getMetadataStoreUrl(); |
| if (ledgersStoreServers.startsWith(ZK_SCHEME_IDENTIFIER)) { |
| ledgersStoreServers = ledgersStoreServers.substring(ZK_SCHEME_IDENTIFIER.length()); |
| } |
| } else { |
| ledgersStoreServers = configuration.getZookeeperServers(); |
| } |
| } |
| BKDLConfig bkdlConfig = new BKDLConfig(ledgersStoreServers, ledgersRootPath); |
| DLMetadata dlMetadata = DLMetadata.create(bkdlConfig); |
| URI dlogURI = URI.create(String.format("distributedlog://%s/pulsar/packages", ledgersStoreServers)); |
| 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()); |
| } |
| } |