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