001/*
002 * Copyright (c) 2022-2024 See AUTHORS file.
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 *
016 */
017
018package com.github.tommyettinger.kryo.jdkgdxds;
019
020import com.esotericsoftware.kryo.Kryo;
021import com.esotericsoftware.kryo.Serializer;
022import com.esotericsoftware.kryo.io.Input;
023import com.esotericsoftware.kryo.io.Output;
024import com.github.tommyettinger.ds.EnumOrderedSet;
025import com.github.tommyettinger.ds.OrderType;
026
027import java.util.Iterator;
028
029/**
030 * Kryo {@link Serializer} for jdkgdxds {@link EnumOrderedSet}s.
031 * Requires the type of any enum values that are contained in an EnumOrderedSet to also be registered.
032 */
033public class EnumOrderedSetSerializer extends Serializer<EnumOrderedSet> {
034
035    private static final OrderType[] ORDER_TYPES = OrderType.values();
036
037    public EnumOrderedSetSerializer() {
038        setAcceptsNull(false);
039    }
040
041    @Override
042    public void write(final Kryo kryo, final Output output, final EnumOrderedSet data) {
043        int length = data.size();
044        output.writeInt(length, true);
045        output.writeVarInt(data.getOrderType().ordinal(), true);
046        for (Iterator<Enum<?>> it = new EnumOrderedSet.EnumOrderedSetIterator(data); it.hasNext(); )
047            kryo.writeClassAndObject(output, it.next());
048    }
049
050    @Override
051    public EnumOrderedSet read(final Kryo kryo, final Input input, final Class<? extends EnumOrderedSet> dataClass) {
052        int length = input.readInt(true);
053        EnumOrderedSet data;
054        data = new EnumOrderedSet(ORDER_TYPES[input.readVarInt(true)]);
055        for (int i = 0; i < length; i++)
056            data.add((Enum<?>)kryo.readClassAndObject(input));
057        return data;
058    }
059
060    @Override
061    public EnumOrderedSet copy(Kryo kryo, EnumOrderedSet original) {
062        return new EnumOrderedSet(original);
063    }
064}