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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.apache.commons.rng.simple.internal;
18  
19  /**
20   * Uses a {@code long} value to seed a
21   * {@link org.apache.commons.rng.core.source64.SplitMix64 SplitMix64} RNG and
22   * create a {@code int[]} with the requested number of random
23   * values.
24   *
25   * @since 1.0
26   */
27  public class Long2IntArray implements Seed2ArrayConverter<Long, int[]> {
28      /** Size of the output array. */
29      private final int size;
30  
31      /**
32       * @param size Size of the output array.
33       */
34      public Long2IntArray(int size) {
35          this.size = size;
36      }
37  
38      /** {@inheritDoc} */
39      @Override
40      public int[] convert(Long seed) {
41          return convert(seed, size);
42      }
43  
44      /**
45       * {@inheritDoc}
46       *
47       * @since 1.3
48       */
49      @Override
50      public int[] convert(Long seed, int outputSize) {
51          return Conversions.long2IntArray(seed, outputSize);
52      }
53  }