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.cassandra.service.snapshot;
  
  import java.util.Set;
  import javax.management.openmbean.CompositeDataSupport;
  import javax.management.openmbean.CompositeType;
  import javax.management.openmbean.OpenDataException;
  import javax.management.openmbean.OpenType;
  import javax.management.openmbean.SimpleType;
  import javax.management.openmbean.TabularDataSupport;
  import javax.management.openmbean.TabularType;
  
  import org.apache.cassandra.io.util.FileUtils;
  
  public class SnapshotDetailsTabularData
  {
      private static final String[] ITEM_NAMES = new String[]{"Snapshot name",
                                                              "Keyspace name",
                                                              "Column family name",
                                                              "True size",
                                                              "Size on disk",
                                                              "Creation time",
                                                              "Expiration time",
                                                              "Ephemeral",
                                                              "Raw true size"};
  
      private static final String[] ITEM_DESCS = new String[]{"snapshot_name",
                                                              "keyspace_name",
                                                              "columnfamily_name",
                                                              "TrueDiskSpaceUsed",
                                                              "TotalDiskSpaceUsed",
                                                              "created_at",
                                                              "expires_at",
                                                              "ephemeral",
                                                              "raw_true_disk_space_used"};
  
      private static final String TYPE_NAME = "SnapshotDetails";
  
      private static final String ROW_DESC = "SnapshotDetails";
  
      private static final OpenType<?>[] ITEM_TYPES;
  
      private static final CompositeType COMPOSITE_TYPE;
  
      public static final TabularType TABULAR_TYPE;
  
      static
      {
          try
          {
              ITEM_TYPES = new OpenType[]{ SimpleType.STRING, SimpleType.STRING, SimpleType.STRING, SimpleType.STRING, SimpleType.STRING, SimpleType.STRING, SimpleType.STRING, SimpleType.STRING, SimpleType.LONG };
  
              COMPOSITE_TYPE = new CompositeType(TYPE_NAME, ROW_DESC, ITEM_NAMES, ITEM_DESCS, ITEM_TYPES);
  
              TABULAR_TYPE = new TabularType(TYPE_NAME, ROW_DESC, COMPOSITE_TYPE, ITEM_NAMES);
          }
          catch (OpenDataException e)
          {
              throw new RuntimeException(e);
          }
      }
  
  
      public static void from(TableSnapshot details, TabularDataSupport result, Set<String> files)
      {
          try
          {
              // in case of forcibly taken snapshots, ephemeral snapshot might get more sstables
              // which would inflate sizes which are otherwise cached,
              // hence, refresh sizes, but for ephemeral snapshots only
              String totalSize = FileUtils.stringifyFileSize(details.computeSizeOnDiskBytes(details.isEphemeral()));
              long trueSizeBytes = details.computeTrueSizeBytes(files);
              String liveSize =  FileUtils.stringifyFileSize(trueSizeBytes);
              String createdAt = safeToString(details.getCreatedAt());
              String expiresAt = safeToString(details.getExpiresAt());
              String ephemeral = Boolean.toString(details.isEphemeral());
              result.put(new CompositeDataSupport(COMPOSITE_TYPE, ITEM_NAMES,
                                                  new Object[]{ details.getTag(), details.getKeyspaceName(), details.getTableName(), liveSize, totalSize, createdAt, expiresAt, ephemeral, trueSizeBytes }));
          }
          catch (OpenDataException e)
          {
              throw new RuntimeException(e);
          }
      }
  
      private static String safeToString(Object object)
      {
          return object == null ? null : object.toString();
      }
  }
  