/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.cassandra.streaming.messages;

import java.io.IOException;

import org.apache.cassandra.io.util.DataInputPlus;
import org.apache.cassandra.io.util.DataOutputStreamPlus;
import org.apache.cassandra.streaming.StreamSession;

public class KeepAliveMessage extends StreamMessage
{
    public static Serializer<KeepAliveMessage> serializer = new Serializer<KeepAliveMessage>()
    {
        public KeepAliveMessage deserialize(DataInputPlus in, int version) throws IOException
        {
            return new KeepAliveMessage();
        }

        public void serialize(KeepAliveMessage message, DataOutputStreamPlus out, int version, StreamSession session)
        {}

        public long serializedSize(KeepAliveMessage message, int version)
        {
            return 0;
        }
    };

    public KeepAliveMessage()
    {
        super(Type.KEEP_ALIVE);
    }

    public String toString()
    {
        return "keep-alive";
    }
}