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.accord;
  
  import org.apache.cassandra.db.ColumnFamilyStore;
  import org.apache.cassandra.db.SerializationHeader;
  import org.apache.cassandra.db.rows.EncodingStats;
  import org.apache.cassandra.io.sstable.Descriptor;
  import org.apache.cassandra.io.sstable.SSTableTxnWriter;
  import org.apache.cassandra.service.accord.serializers.Version;
  
  /**
   * Segment compactor: takes static segments and compacts them into a single SSTable.
   */
  public class AccordSegmentCompactor<V> extends AbstractAccordSegmentCompactor<V>
  {
      private SSTableTxnWriter writer;
  
      public AccordSegmentCompactor(Version userVersion, ColumnFamilyStore cfs)
      {
          super(userVersion, cfs);
      }
  
      @Override
      void initializeWriter(int estimatedKeyCount)
      {
          Descriptor descriptor = cfs.newSSTableDescriptor(cfs.getDirectories().getDirectoryForNewSSTables());
          SerializationHeader header = new SerializationHeader(true, cfs.metadata(), cfs.metadata().regularAndStaticColumns(), EncodingStats.NO_STATS);
  
          this.writer = SSTableTxnWriter.create(cfs, descriptor, estimatedKeyCount, 0, null, false, header);
      }
  
      @Override
      SSTableTxnWriter writer()
      {
          return writer;
      }
  
      @Override
      void finishAndAddWriter()
      {
          cfs.addSSTables(writer.finish(true));
          writer.close();
          writer = null;
      }
  
      @Override
      Throwable cleanupWriter(Throwable t)
      {
          return writer.abort(t);
      }
  }
  
  