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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.admin.cli;
import com.beust.jcommander.Parameter;
import com.beust.jcommander.ParameterException;
import com.beust.jcommander.Parameters;
import com.google.common.base.Strings;
import java.util.function.Supplier;
import lombok.NonNull;
import org.apache.pulsar.client.admin.PulsarAdmin;
import org.apache.pulsar.common.policies.data.BookieInfo;
@Parameters(commandDescription = "Operations about bookies rack placement")
public class CmdBookies extends CmdBase {
@Parameters(commandDescription = "Gets the rack placement information for all the bookies in the cluster")
private class GetAll extends CliCommand {
@Override
void run() throws Exception {
print(getAdmin().bookies().getBookiesRackInfo());
}
}
@Parameters(commandDescription = "Gets the rack placement information for a specific bookie in the cluster")
private class GetBookie extends CliCommand {
@Parameter(names = { "-b", "--bookie" },
description = "Bookie address (format: `address:port`)", required = true)
private String bookieAddress;
@Override
void run() throws Exception {
print(getAdmin().bookies().getBookieRackInfo(bookieAddress));
}
}
@Parameters(commandDescription = "List bookies")
private class ListBookies extends CliCommand {
@Override
void run() throws Exception {
print(getAdmin().bookies().getBookies());
}
}
@Parameters(commandDescription = "Remove rack placement information for a specific bookie in the cluster")
private class RemoveBookie extends CliCommand {
@Parameter(names = { "-b", "--bookie" },
description = "Bookie address (format: `address:port`)", required = true)
private String bookieAddress;
@Override
void run() throws Exception {
getAdmin().bookies().deleteBookieRackInfo(bookieAddress);
}
}
@Parameters(commandDescription = "Updates the rack placement information for a specific bookie in the cluster "
+ "(note. bookie address format:`address:port`)")
private class UpdateBookie extends CliCommand {
private static final String PATH_SEPARATOR = "/";
@Parameter(names = { "-g", "--group" }, description = "Bookie group name", required = false)
private String group = "default";
@Parameter(names = { "-b", "--bookie" },
description = "Bookie address (format: `address:port`)", required = true)
private String bookieAddress;
@Parameter(names = { "-r", "--rack" }, description = "Bookie rack name. "
+ "If you set a bookie rack name to slash (/) "
+ "or an empty string (\"\"): "
+ "when using Pulsar earlier than 2.7.5, 2.8.3, and 2.9.2, "
+ "an exception is thrown; "
+ "if you use Pulsar 2.7.5, 2.8.3, 2.9.2 or later versions, "
+ "it falls back to /default-rack or /default-region/default-rack."
+ "When `RackawareEnsemblePlacementPolicy` is enabled, "
+ "the rack name is not allowed to contain slash (/) "
+ "except for the beginning and end of the rack name string. "
+ "For example, rack name like /rack0 is okay, but /rack/0 is not allowed. "
+ "When `RegionawareEnsemblePlacementPolicy` is enabled, "
+ "the rack name can only contain one slash (/) "
+ "except for the beginning and end of the rack name string. "
+ "For example, rack name like /region0/rack0 is okay, "
+ "but /region0rack0 and /region0/rack/0 are not allowed.", required = true)
private String bookieRack;
@Parameter(names = {"-hn", "--hostname"}, description = "Bookie host name", required = false)
private String bookieHost;
@Override
void run() throws Exception {
checkArgument(!Strings.isNullOrEmpty(bookieRack) && !bookieRack.trim().equals(PATH_SEPARATOR),
"rack name is invalid, it should not be null, empty or '/'");
getAdmin().bookies().updateBookieRackInfo(bookieAddress, group,
BookieInfo.builder()
.rack(bookieRack)
.hostname(bookieHost)
.build());
}
private void checkArgument(boolean expression, @NonNull Object errorMessage) {
if (!expression) {
throw new ParameterException(String.valueOf(errorMessage));
}
}
}
public CmdBookies(Supplier admin) {
super("bookies", admin);
jcommander.addCommand("racks-placement", new GetAll());
jcommander.addCommand("list-bookies", new ListBookies());
jcommander.addCommand("get-bookie-rack", new GetBookie());
jcommander.addCommand("delete-bookie-rack", new RemoveBookie());
jcommander.addCommand("set-bookie-rack", new UpdateBookie());
}
}
