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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 org.apache.pulsar.client.admin.PulsarAdmin;
import org.apache.pulsar.common.policies.data.BookieInfo;

import com.beust.jcommander.Parameter;
import com.beust.jcommander.Parameters;

@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(admin.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", required = true)
        private String bookieAddress;

        @Override
        void run() throws Exception {
            print(admin.bookies().getBookieRackInfo(bookieAddress));
        }
    }

    @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", required = true)
        private String bookieAddress;

        @Override
        void run() throws Exception {
            admin.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 {
        @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", required = true)
        private String bookieRack;

        @Parameter(names = { "--hostname" }, description = "Bookie host name", required = false)
        private String bookieHost;

        @Override
        void run() throws Exception {
            admin.bookies().updateBookieRackInfo(bookieAddress, group, new BookieInfo(bookieRack, bookieHost));
        }
    }

    public CmdBookies(PulsarAdmin admin) {
        super("bookies", admin);
        jcommander.addCommand("racks-placement", new GetAll());
        jcommander.addCommand("get-bookie-rack", new GetBookie());
        jcommander.addCommand("delete-bookie-rack", new RemoveBookie());
        jcommander.addCommand("set-bookie-rack", new UpdateBookie());
    }
}