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.index.sai.utils;
  
  import java.util.Objects;
  import javax.annotation.Nullable;
  
  import org.apache.cassandra.db.DecoratedKey;
  import org.apache.cassandra.db.DeletionTime;
  import org.apache.cassandra.db.rows.BaseRowIterator;
  import org.apache.cassandra.db.rows.EncodingStats;
  import org.apache.cassandra.db.rows.Row;
  import org.apache.cassandra.db.rows.Unfiltered;
  import org.apache.cassandra.db.rows.UnfilteredRowIterator;
  
  public class PartitionInfo
  {
      public final DecoratedKey key;
      public final Row staticRow;
  
      // present if it's unfiltered partition iterator
      @Nullable
      public final DeletionTime partitionDeletion;
  
      // present if it's unfiltered partition iterator
      @Nullable
      public final EncodingStats encodingStats;
  
      public PartitionInfo(DecoratedKey key, Row staticRow)
      {
          this.key = key;
          this.staticRow = staticRow;
          this.partitionDeletion = null;
          this.encodingStats = null;
      }
  
      public PartitionInfo(DecoratedKey key, Row staticRow, DeletionTime partitionDeletion, EncodingStats encodingStats)
      {
          this.key = key;
          this.staticRow = staticRow;
  
          this.partitionDeletion = partitionDeletion;
          this.encodingStats = encodingStats;
      }
  
      public static <U extends Unfiltered, R extends BaseRowIterator<U>> PartitionInfo create(R baseRowIterator)
      {
          return baseRowIterator instanceof UnfilteredRowIterator
                 ? new PartitionInfo(baseRowIterator.partitionKey(), baseRowIterator.staticRow(),
                                     ((UnfilteredRowIterator) baseRowIterator).partitionLevelDeletion(),
                                     ((UnfilteredRowIterator) baseRowIterator).stats())
                 : new PartitionInfo(baseRowIterator.partitionKey(), baseRowIterator.staticRow());
      }
  
      @Override
      public boolean equals(Object o)
      {
          if (this == o) return true;
          if (o == null || getClass() != o.getClass()) return false;
          PartitionInfo that = (PartitionInfo) o;
          return Objects.equals(key, that.key) && Objects.equals(staticRow, that.staticRow)
                 && Objects.equals(partitionDeletion, that.partitionDeletion) && Objects.equals(encodingStats, that.encodingStats);
      }
  
      @Override
      public int hashCode()
      {
          return Objects.hash(key, staticRow, partitionDeletion, encodingStats);
      }
  }
  