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.LongObjectMap;
025
026import java.util.Iterator;
027
028/**
029 * Kryo {@link Serializer} for jdkgdxds {@link LongObjectMap}s.
030 */
031public class LongObjectMapSerializer extends Serializer<LongObjectMap<?>> {
032
033    public LongObjectMapSerializer() {
034        setAcceptsNull(true);
035    }
036
037    @Override
038    public void write(final Kryo kryo, final Output output, final LongObjectMap<?> data) {
039        int length = data.size();
040        output.writeInt(length, true);
041        kryo.writeClassAndObject(output, data.getDefaultValue());
042        for(Iterator<? extends LongObjectMap.Entry<?>> it = new LongObjectMap.Entries<>(data).iterator(); it.hasNext();) {
043            LongObjectMap.Entry<?> ent = it.next();
044            output.writeVarLong(ent.key, false);
045            kryo.writeClassAndObject(output, ent.value);
046        }
047    }
048
049    @SuppressWarnings({"rawtypes", "unchecked", "UnnecessaryLocalVariable"})
050    @Override
051    public LongObjectMap<?> read(final Kryo kryo, final Input input, final Class<? extends LongObjectMap<?>> dataClass) {
052        int length = input.readInt(true);
053        LongObjectMap<?> data = new LongObjectMap<>(length);
054        LongObjectMap rawData = data;
055        rawData.setDefaultValue(kryo.readClassAndObject(input));
056        for (int i = 0; i < length; i++)
057            rawData.put(input.readVarLong(false), kryo.readClassAndObject(input));
058        return data;
059    }
060
061    @SuppressWarnings({"rawtypes", "unchecked", "UnnecessaryLocalVariable"})
062    @Override
063    public LongObjectMap<?> copy(Kryo kryo, LongObjectMap<?> original) {
064        LongObjectMap<?> map = new LongObjectMap<>(original.size(), original.getLoadFactor());
065        kryo.reference(map);
066        LongObjectMap rawMap = map;
067        rawMap.setDefaultValue(original.getDefaultValue());
068        for(LongObjectMap.Entry ent : original) {
069            rawMap.put(ent.key, kryo.copy(ent.value));
070        }
071        return map;
072    }
073}