| /* |
| * 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.bookkeeper.tools.cli.commands.bookies; |
| |
| import static org.apache.bookkeeper.common.concurrent.FutureUtils.result; |
| import static org.apache.bookkeeper.tools.cli.helpers.CommandHelpers.getBookieSocketAddrStringRepresentation; |
| |
| import com.beust.jcommander.Parameter; |
| import java.util.Collection; |
| import java.util.Set; |
| import lombok.Setter; |
| import lombok.experimental.Accessors; |
| import org.apache.bookkeeper.client.DefaultBookieAddressResolver; |
| import org.apache.bookkeeper.discover.RegistrationClient; |
| import org.apache.bookkeeper.net.BookieId; |
| import org.apache.bookkeeper.proto.BookieAddressResolver; |
| import org.apache.bookkeeper.tools.cli.commands.bookies.ListBookiesCommand.Flags; |
| import org.apache.bookkeeper.tools.cli.helpers.DiscoveryCommand; |
| import org.apache.bookkeeper.tools.framework.CliFlags; |
| import org.apache.bookkeeper.tools.framework.CliSpec; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Command to list available bookies. |
| */ |
| public class ListBookiesCommand extends DiscoveryCommand<Flags> { |
| |
| private static final String NAME = "list"; |
| private static final String DESC = "List the bookies, which are running as either readwrite or readonly mode."; |
| private static final Logger LOG = LoggerFactory.getLogger(ListBookiesCommand.class); |
| |
| public ListBookiesCommand() { |
| this(new Flags()); |
| } |
| |
| public ListBookiesCommand(Flags flags) { |
| super(CliSpec.<Flags>newBuilder() |
| .withName(NAME) |
| .withDescription(DESC) |
| .withFlags(flags) |
| .build()); |
| } |
| |
| /** |
| * Flags for list bookies command. |
| */ |
| @Accessors(fluent = true) |
| @Setter |
| public static class Flags extends CliFlags { |
| |
| @Parameter(names = { "-rw", "--readwrite" }, description = "Print readwrite bookies") |
| private boolean readwrite = false; |
| @Parameter(names = { "-ro", "--readonly" }, description = "Print readonly bookies") |
| private boolean readonly = false; |
| @Parameter(names = { "-a", "--all" }, description = "Print all bookies") |
| private boolean all = false; |
| |
| } |
| |
| @Override |
| protected void run(RegistrationClient regClient, Flags flags) throws Exception { |
| if (!flags.readwrite && !flags.readonly && !flags.all) { |
| // case: no args is provided. list all the bookies by default. |
| flags.readwrite = true; |
| flags.readonly = true; |
| flags.all = true; |
| } |
| |
| boolean hasBookies = false; |
| if (flags.readwrite) { |
| Set<BookieId> bookies = result( |
| regClient.getWritableBookies() |
| ).getValue(); |
| if (!bookies.isEmpty()) { |
| LOG.info("ReadWrite Bookies :"); |
| printBookies(bookies, new DefaultBookieAddressResolver(regClient)); |
| hasBookies = true; |
| } |
| } |
| if (flags.readonly) { |
| Set<BookieId> bookies = result( |
| regClient.getReadOnlyBookies() |
| ).getValue(); |
| if (!bookies.isEmpty()) { |
| LOG.info("Readonly Bookies :"); |
| printBookies(bookies, new DefaultBookieAddressResolver(regClient)); |
| hasBookies = true; |
| } |
| } |
| if (flags.all) { |
| Set<BookieId> bookies = result( |
| regClient.getAllBookies() |
| ).getValue(); |
| if (!bookies.isEmpty()) { |
| LOG.info("All Bookies :"); |
| printBookies(bookies, new DefaultBookieAddressResolver(regClient)); |
| hasBookies = true; |
| } |
| } |
| if (!hasBookies) { |
| LOG.error("No bookie exists!"); |
| } |
| } |
| |
| private static void printBookies(Collection<BookieId> bookies, BookieAddressResolver bookieAddressResolver) { |
| for (BookieId b : bookies) { |
| LOG.info(getBookieSocketAddrStringRepresentation(b, bookieAddressResolver)); |
| } |
| } |
| |
| } |