001/*
002 * Copyright © 2025 CUI-OpenSource-Software (info@cuioss.de)
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package de.cuioss.test.generator.internal.net.java.quickcheck.generator.support;
017
018import de.cuioss.test.generator.internal.net.java.quickcheck.Generator;
019
020import java.util.List;
021
022
023public class RoundRobinGenerator<T> implements Generator<T> {
024
025    private final List<Generator<T>> generators;
026    private int index;
027
028    public RoundRobinGenerator(List<Generator<T>> generators) {
029        if (generators == null || generators.isEmpty()) {
030            throw new IllegalArgumentException("generators");
031        }
032        this.generators = generators;
033        index = 0;
034    }
035
036    @Override
037    public T next() {
038        Generator<T> generator = generators.get(index++ % generators.size());
039        return generator.next();
040    }
041}