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 * Create an instance.
33 *
34 * @param size Size of the output array.
35 */
36 public Long2IntArray(int size) {
37 this.size = size;
38 }
39
40 /** {@inheritDoc} */
41 @Override
42 public int[] convert(Long seed) {
43 return convert(seed, size);
44 }
45
46 /**
47 * {@inheritDoc}
48 *
49 * @since 1.3
50 */
51 @Override
52 public int[] convert(Long seed, int outputSize) {
53 return Conversions.long2IntArray(seed, outputSize);
54 }
55 }