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.io.Input;
022import com.esotericsoftware.kryo.io.Output;
023import com.esotericsoftware.kryo.serializers.CollectionSerializer;
024import com.github.tommyettinger.ds.HolderSet;
025import com.github.tommyettinger.function.ObjToObjFunction;
026
027import java.util.NoSuchElementException;
028
029public class HolderSetSerializer extends CollectionSerializer<HolderSet<?, ?>> {
030    public HolderSetSerializer() {
031        super();
032        setElementsCanBeNull(false);
033    }
034
035    @Override
036    protected void writeHeader(Kryo kryo, Output output, HolderSet<?, ?> collection) {
037        ObjToObjFunction<?, ?> ext = collection.getExtractor();
038        if(ext == null)
039            throw new NoSuchElementException("A HolderSet must have a non-null extractor to be serialized.");
040        if(kryo.getClassResolver().getRegistration(ext.getClass()) == null)
041            kryo.register(ext.getClass());
042        kryo.writeClassAndObject(output, ext);
043    }
044
045    @SuppressWarnings({"unchecked", "rawtypes"})
046    @Override
047    protected HolderSet<?, ?> create(Kryo kryo, Input input, Class<? extends HolderSet<?, ?>> type, int size) {
048        return new HolderSet<>((ObjToObjFunction)kryo.readClassAndObject(input), size);
049    }
050
051    @SuppressWarnings("DataFlowIssue")
052    @Override
053    protected HolderSet<?, ?> createCopy(Kryo kryo, HolderSet<?, ?> original) {
054        return new HolderSet<>(original.getExtractor(), original.size(), original.getLoadFactor());
055    }
056}