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.bookie;
  
  import com.beust.jcommander.Parameter;
  import java.io.IOException;
  import lombok.Setter;
  import lombok.experimental.Accessors;
  import org.apache.bookkeeper.bookie.storage.ldb.LedgersIndexCheckOp;
  import org.apache.bookkeeper.conf.ServerConfiguration;
  import org.apache.bookkeeper.tools.cli.helpers.BookieCommand;
  import org.apache.bookkeeper.tools.framework.CliFlags;
  import org.apache.bookkeeper.tools.framework.CliSpec;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Command to check the DBLedgerStorage ledgers index integrity.
   */
  public class CheckDBLedgersIndexCommand extends BookieCommand<CheckDBLedgersIndexCommand.CheckLedgersIndexFlags> {
  
      static final Logger LOG = LoggerFactory.getLogger(CheckDBLedgersIndexCommand.class);
  
      private static final String NAME = "check-db-ledgers-index";
      private static final String DESC = "Check the DBLedgerStorage ledgers index integrity by performing a read scan";
  
      public CheckDBLedgersIndexCommand() {
          this(new CheckLedgersIndexFlags());
      }
  
      public CheckDBLedgersIndexCommand(CheckLedgersIndexFlags flags) {
          super(CliSpec.<CheckLedgersIndexFlags>newBuilder().withName(NAME)
                  .withDescription(DESC).withFlags(flags).build());
      }
  
      @Override
      public boolean apply(ServerConfiguration conf, CheckLedgersIndexFlags cmdFlags) {
          LOG.info("=== Checking DBStorage ledgers index by running a read scan ===");
          ServerConfiguration serverConfiguration = new ServerConfiguration(conf);
          try {
              boolean success = new LedgersIndexCheckOp(serverConfiguration, cmdFlags.verbose).initiate();
              if (success) {
                  LOG.info("-- Done checking DBStorage ledgers index --");
              } else {
                  LOG.info("-- Aborted checking DBStorage ledgers index --");
              }
  
              return success;
          } catch (IOException e) {
              e.printStackTrace();
              return false;
          }
  
      }
  
      /**
       * Flags for read log command.
       */
      @Accessors(fluent = true)
      @Setter
      public static class CheckLedgersIndexFlags extends CliFlags {
          @Parameter(names = { "-v", "--verbose" }, description = "Verbose logging. Print each ledger.")
          private boolean verbose;
      }
  }
  