001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.commons.rng.simple.internal;
018
019
020/**
021 * Composes two {@link SeedConverter converters}.
022 *
023 * @param <T> Input seed type.
024 * @param <S> Transitional seed type.
025 * @param <R> Output seed type.
026 *
027 * @since 1.0
028 */
029public class SeedConverterComposer<T, S, R> implements SeedConverter<T, R> {
030    /** First conversion. */
031    private final SeedConverter<T, S> first;
032    /** Second conversion. */
033    private final SeedConverter<S, R> second;
034
035    /**
036     * Create an instance.
037     *
038     * @param first First conversion.
039     * @param second second conversion.
040     */
041    public SeedConverterComposer(SeedConverter<T, S> first,
042                                 SeedConverter<S, R> second) {
043        this.first = first;
044        this.second = second;
045    }
046
047    /** {@inheritDoc} */
048    @Override
049    public R convert(T seed) {
050        final S trans = first.convert(seed);
051        return second.convert(trans);
052    }
053}