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.db.compaction.writers;
  
  
  import java.util.Set;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import org.apache.cassandra.db.ColumnFamilyStore;
  import org.apache.cassandra.db.DecoratedKey;
  import org.apache.cassandra.db.Directories;
  import org.apache.cassandra.db.lifecycle.ILifecycleTransaction;
  import org.apache.cassandra.io.sstable.format.SSTableReader;
  
  /**
   * The default compaction writer - creates one output file in L0
   */
  public class DefaultCompactionWriter extends CompactionAwareWriter
  {
      protected static final Logger logger = LoggerFactory.getLogger(DefaultCompactionWriter.class);
      private final int sstableLevel;
  
      public DefaultCompactionWriter(ColumnFamilyStore cfs, Directories directories, ILifecycleTransaction txn, Set<SSTableReader> nonExpiredSSTables)
      {
          this(cfs, directories, txn, nonExpiredSSTables, false, 0);
      }
  
      public DefaultCompactionWriter(ColumnFamilyStore cfs, Directories directories, ILifecycleTransaction txn, Set<SSTableReader> nonExpiredSSTables, boolean keepOriginals, int sstableLevel)
      {
          super(cfs, directories, txn, nonExpiredSSTables, keepOriginals);
          this.sstableLevel = sstableLevel;
      }
  
      @Override
      protected boolean shouldSwitchWriterInCurrentLocation(DecoratedKey key)
      {
          return false;
      }
  
      protected int sstableLevel()
      {
          return sstableLevel;
      }
  
      protected long sstableKeyCount()
      {
          return estimatedTotalKeys;
      }
  }
  