content: /*
   * Licensed 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 io.airlift.stats.cardinality;
  
  import static io.airlift.stats.cardinality.Utils.computeIndex;
  import static io.airlift.stats.cardinality.Utils.computeValue;
  import static io.airlift.stats.cardinality.Utils.numberOfBuckets;
  
  public class TestingHll
  {
      private final int indexBitLength;
      private final int[] buckets;
  
      public TestingHll(int indexBitLength)
      {
          this.indexBitLength = indexBitLength;
          buckets = new int[numberOfBuckets(indexBitLength)];
      }
  
      public void insertHash(long hash)
      {
          int index = computeIndex(hash, indexBitLength);
          int value = computeValue(hash, indexBitLength);
  
          buckets[index] = Math.max(buckets[index], value);
      }
  
      public int[] getBuckets()
      {
          return buckets;
      }
  }
  