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.harry.gen.rng;
  
  import java.util.Random;
  
  import org.apache.cassandra.harry.gen.EntropySource;
  
  public class JdkRandomEntropySource implements EntropySource
  {
      private final Random rng;
  
      public JdkRandomEntropySource(long seed)
      {
          this(new Random(seed));
      }
  
      public JdkRandomEntropySource(Random rng)
      {
          this.rng = rng;
      }
  
      @Override
      public long next()
      {
          return rng.nextLong();
      }
  
      @Override
      public void seed(long seed)
      {
          rng.setSeed(seed);
      }
  
      @Override
      public EntropySource derive()
      {
          return new JdkRandomEntropySource(new Random(rng.nextLong()));
      }
  
      @Override
      public int nextInt()
      {
          return rng.nextInt();
      }
  
      /**
       * Generates int between [0, max).
       */
      @Override
      public int nextInt(int max)
      {
          return rng.nextInt(max);
      }
  
      /**
       * Generates a value between [min, max).
       */
      @Override
      public int nextInt(int min, int max)
      {
          if (min == max)
              return min;
          return rng.nextInt(max - min) + min;
      }
  
      public long nextLong()
      {
          return rng.nextLong();
      }
  
      @Override
      public float nextFloat()
      {
          return rng.nextFloat();
      }
  
      @Override
      public double nextDouble()
      {
          return rng.nextDouble();
      }
  
      @Override
      public boolean nextBoolean()
      {
          return rng.nextBoolean();
      }
  }
  