/*
 * Copyright (c) 2008-2017, Hazelcast, Inc. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.hazelcast.replicatedmap.impl.operation;

import com.hazelcast.nio.IOUtil;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.IdentifiedDataSerializable;

import java.io.IOException;

/**
 * Contains response and partition version for update operations on replicated map.
 */
public class VersionResponsePair implements IdentifiedDataSerializable {

    Object response;
    long version;

    public VersionResponsePair() {
    }

    public VersionResponsePair(Object response, long version) {
        this.response = response;
        this.version = version;
    }

    public Object getResponse() {
        return response;
    }

    public long getVersion() {
        return version;
    }

    @Override
    public void writeData(ObjectDataOutput out) throws IOException {
        IOUtil.writeObject(out, response);
        out.writeLong(version);
    }

    @Override
    public void readData(ObjectDataInput in) throws IOException {
        response = IOUtil.readObject(in);
        version = in.readLong();
    }

    @Override
    public int getFactoryId() {
        return ReplicatedMapDataSerializerHook.F_ID;
    }

    @Override
    public int getId() {
        return ReplicatedMapDataSerializerHook.VERSION_RESPONSE_PAIR;
    }
}