/*
 * Copyright 2014 Open Networking Laboratory
 *
 * 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 org.onlab.onos.store.device.impl;

import org.onlab.onos.net.DeviceId;
import org.onlab.onos.net.device.DeviceDescription;
import org.onlab.onos.net.provider.ProviderId;
import org.onlab.onos.store.impl.Timestamped;

import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.Serializer;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;

/**
 * Kryo Serializer for {@link InternalDeviceEvent}.
 */
public class InternalDeviceEventSerializer extends Serializer<InternalDeviceEvent> {

    /**
     * Creates a serializer for {@link InternalDeviceEvent}.
     */
    public InternalDeviceEventSerializer() {
        // does not accept null
        super(false);
    }

    @Override
    public void write(Kryo kryo, Output output, InternalDeviceEvent event) {
        kryo.writeClassAndObject(output, event.providerId());
        kryo.writeClassAndObject(output, event.deviceId());
        kryo.writeClassAndObject(output, event.deviceDescription());
    }

    @Override
    public InternalDeviceEvent read(Kryo kryo, Input input,
                               Class<InternalDeviceEvent> type) {
        ProviderId providerId = (ProviderId) kryo.readClassAndObject(input);
        DeviceId deviceId = (DeviceId) kryo.readClassAndObject(input);

        @SuppressWarnings("unchecked")
        Timestamped<DeviceDescription> deviceDescription
            = (Timestamped<DeviceDescription>) kryo.readClassAndObject(input);

        return new InternalDeviceEvent(providerId, deviceId, deviceDescription);
    }
}