content: /*
   * 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.autorecovery;
  
  import com.beust.jcommander.Parameter;
  import com.google.common.util.concurrent.UncheckedExecutionException;
  import java.io.IOException;
  import lombok.Setter;
  import lombok.experimental.Accessors;
  import org.apache.bookkeeper.client.BKException;
  import org.apache.bookkeeper.client.BookKeeperAdmin;
  import org.apache.bookkeeper.conf.ClientConfiguration;
  import org.apache.bookkeeper.conf.ServerConfiguration;
  import org.apache.bookkeeper.replication.ReplicationException;
  import org.apache.bookkeeper.tools.cli.helpers.BookieCommand;
  import org.apache.bookkeeper.tools.framework.CliFlags;
  import org.apache.bookkeeper.tools.framework.CliSpec;
  import org.apache.zookeeper.KeeperException;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Command to Setter and Getter for LostBookieRecoveryDelay value (in seconds) in metadata store.
   */
  public class LostBookieRecoveryDelayCommand extends BookieCommand<LostBookieRecoveryDelayCommand.LBRDFlags> {
  
      static final Logger LOG = LoggerFactory.getLogger(LostBookieRecoveryDelayCommand.class);
  
      private static final String NAME = "lostbookierecoverydelay";
      private static final String DESC =
          "Setter and Getter for LostBookieRecoveryDelay value (in seconds) in metadata store";
  
      private static final int DEFAULT = 0;
  
      public LostBookieRecoveryDelayCommand() {
          this(new LBRDFlags());
      }
  
      private LostBookieRecoveryDelayCommand(LBRDFlags flags) {
          super(CliSpec.<LostBookieRecoveryDelayCommand.LBRDFlags>newBuilder()
                    .withName(NAME)
                    .withDescription(DESC)
                    .withFlags(flags)
                    .build());
      }
  
      /**
       * Flags for command LostBookieRecoveryDelay.
       */
      @Accessors(fluent = true)
      @Setter
      public static class LBRDFlags extends CliFlags{
  
          @Parameter(names = { "-g", "--get" }, description = "Get LostBookieRecoveryDelay value (in seconds)")
          private boolean get;
  
          @Parameter(names = { "-s", "--set" }, description = "Set LostBookieRecoveryDelay value (in seconds)")
          private int set = DEFAULT;
  
      }
  
      @Override
      public boolean apply(ServerConfiguration conf, LBRDFlags cmdFlags) {
          try {
              return handler(conf, cmdFlags);
          } catch (Exception e) {
              throw new UncheckedExecutionException(e.getMessage(), e);
          }
      }
  
      public boolean handler(ServerConfiguration conf, LBRDFlags flags)
          throws InterruptedException, BKException, IOException, ReplicationException.UnavailableException,
                 ReplicationException.CompatibilityException, KeeperException {
          boolean getter = flags.get;
          boolean setter = false;
          if (flags.set != DEFAULT) {
              setter = true;
          }
  
          if ((!getter && !setter) || (getter && setter)) {
              LOG.error("One and only one of -get and -set must be specified");
              return false;
          }
          ClientConfiguration adminConf = new ClientConfiguration(conf);
          BookKeeperAdmin admin = new BookKeeperAdmin(adminConf);
          try {
              if (getter) {
                  int lostBookieRecoveryDelay = admin.getLostBookieRecoveryDelay();
                  LOG.info("LostBookieRecoveryDelay value in ZK: {}", lostBookieRecoveryDelay);
              } else {
                  int lostBookieRecoveryDelay = flags.set;
                  admin.setLostBookieRecoveryDelay(lostBookieRecoveryDelay);
                  LOG.info("Successfully set LostBookieRecoveryDelay value in ZK: {}",
                          lostBookieRecoveryDelay);
              }
          } finally {
              if (admin != null) {
                  admin.close();
              }
          }
          return true;
      }
  }
  