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.HashMap;
021import java.util.Map;
022import java.util.Set;
023
024import static de.cuioss.test.generator.internal.net.java.quickcheck.generator.support.SetGenerator.MAX_SIZE;
025import static java.util.Objects.requireNonNull;
026
027public class MapGenerator<K, V> implements Generator<Map<K, V>> {
028
029    private final Generator<Set<K>> keys;
030    private final Generator<V> values;
031
032    public MapGenerator(Generator<K> keys, Generator<V> values) {
033        requireNonNull(keys, "keys");
034        requireNonNull(values, "values");
035        this.keys = new SetGenerator<>(keys);
036        this.values = values;
037    }
038
039    public MapGenerator(Generator<K> keys, Generator<V> values, Generator<Integer> size) {
040        requireNonNull(keys, "keys");
041        requireNonNull(values, "values");
042        requireNonNull(size, "size");
043        this.keys = new SetGenerator<>(keys, size, MAX_SIZE);
044        this.values = values;
045    }
046
047    @Override
048    public Map<K, V> next() {
049        Map<K, V> next = new HashMap<>();
050        for (K key : keys.next())
051            next.put(key, values.next());
052        return next;
053    }
054}