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.io.sstable;
  
  import org.apache.cassandra.config.Config;
  import org.apache.cassandra.config.DatabaseDescriptor;
  import org.apache.cassandra.io.util.DiskOptimizationStrategy;
  import org.apache.cassandra.io.util.SequentialWriterOption;
  
  public class IOOptions
  {
      public static IOOptions fromDatabaseDescriptor()
      {
          return new IOOptions(DatabaseDescriptor.getDiskOptimizationStrategy(),
                               DatabaseDescriptor.getDiskAccessMode(),
                               DatabaseDescriptor.getIndexAccessMode(),
                               DatabaseDescriptor.getDiskOptimizationEstimatePercentile(),
                               SequentialWriterOption.newBuilder()
                                                     .trickleFsync(DatabaseDescriptor.getTrickleFsync())
                                                     .trickleFsyncByteInterval(DatabaseDescriptor.getTrickleFsyncIntervalInKiB() * 1024)
                                                     .build(),
                               DatabaseDescriptor.getFlushCompression());
      }
  
      public final DiskOptimizationStrategy diskOptimizationStrategy;
      public final Config.DiskAccessMode defaultDiskAccessMode;
      public final Config.DiskAccessMode indexDiskAccessMode;
      public final double diskOptimizationEstimatePercentile;
      public final SequentialWriterOption writerOptions;
      public final Config.FlushCompression flushCompression;
  
      public IOOptions(DiskOptimizationStrategy diskOptimizationStrategy,
                       Config.DiskAccessMode defaultDiskAccessMode,
                       Config.DiskAccessMode indexDiskAccessMode,
                       double diskOptimizationEstimatePercentile,
                       SequentialWriterOption writerOptions,
                       Config.FlushCompression flushCompression)
      {
          this.diskOptimizationStrategy = diskOptimizationStrategy;
          this.defaultDiskAccessMode = defaultDiskAccessMode;
          this.indexDiskAccessMode = indexDiskAccessMode;
          this.diskOptimizationEstimatePercentile = diskOptimizationEstimatePercentile;
          this.writerOptions = writerOptions;
          this.flushCompression = flushCompression;
      }
  }