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.google.common.annotations.VisibleForTesting;
  import com.google.common.util.concurrent.UncheckedExecutionException;
  import java.io.File;
  import java.io.IOException;
  import org.apache.bookkeeper.bookie.Journal;
  import org.apache.bookkeeper.bookie.LedgerDirsManager;
  import org.apache.bookkeeper.bookie.LogMark;
  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.apache.bookkeeper.util.DiskChecker;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * A bookie command to print the last log marker.
   */
  public class LastMarkCommand extends BookieCommand<CliFlags> {
  
      private static final String NAME = "lastmark";
      private static final String DESC = "Print last log marker";
      private static final Logger LOG = LoggerFactory.getLogger(LastMarkCommand.class);
  
      public LastMarkCommand() {
          super(CliSpec.newBuilder()
              .withName(NAME)
              .withFlags(new CliFlags())
              .withDescription(DESC)
              .build());
      }
  
      @VisibleForTesting
      public static LastMarkCommand newLastMarkCommand(){
          return new LastMarkCommand();
      }
  
      @Override
      public boolean apply(ServerConfiguration conf, CliFlags flags) {
          try {
              LedgerDirsManager dirsManager = new LedgerDirsManager(
                      conf, conf.getLedgerDirs(),
                      new DiskChecker(conf.getDiskUsageThreshold(), conf.getDiskUsageWarnThreshold()));
              File[] journalDirs = conf.getJournalDirs();
  
              for (int idx = 0; idx < journalDirs.length; idx++) {
                  Journal journal = new Journal(idx, journalDirs[idx], conf, dirsManager);
                  LogMark lastLogMark = journal.getLastLogMark().getCurMark();
                  LOG.info("LastLogMark : Journal Id - {}({}.txn), Pos - {}",
                      lastLogMark.getLogFileId(),
                      Long.toHexString(lastLogMark.getLogFileId()),
                      lastLogMark.getLogFileOffset());
              }
              return true;
          } catch (IOException e) {
              throw new UncheckedExecutionException(e.getMessage(), e);
          }
      }
  }
  