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   * 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.test.microbench;
  
  import java.io.IOException;
  import java.util.EnumMap;
  import java.util.Map;
  import java.util.concurrent.TimeUnit;
  
  import com.google.common.net.InetAddresses;
  
  import io.netty.buffer.ByteBuf;
  import io.netty.buffer.Unpooled;
  import org.apache.cassandra.config.DatabaseDescriptor;
  import org.apache.cassandra.io.util.DataInputBuffer;
  import org.apache.cassandra.io.util.DataOutputBuffer;
  import org.apache.cassandra.locator.InetAddressAndPort;
  import org.apache.cassandra.net.Message;
  import org.apache.cassandra.net.MessagingService;
  import org.apache.cassandra.net.NoPayload;
  import org.apache.cassandra.net.ParamType;
  import org.apache.cassandra.utils.TimeUUID;
  import org.openjdk.jmh.annotations.Benchmark;
  import org.openjdk.jmh.annotations.BenchmarkMode;
  import org.openjdk.jmh.annotations.Fork;
  import org.openjdk.jmh.annotations.Measurement;
  import org.openjdk.jmh.annotations.Mode;
  import org.openjdk.jmh.annotations.OutputTimeUnit;
  import org.openjdk.jmh.annotations.Param;
  import org.openjdk.jmh.annotations.Scope;
  import org.openjdk.jmh.annotations.Setup;
  import org.openjdk.jmh.annotations.State;
  import org.openjdk.jmh.annotations.Warmup;
  
  import static org.apache.cassandra.net.Verb.ECHO_REQ;
  import static org.apache.cassandra.utils.Clock.Global.nanoTime;
  import static org.apache.cassandra.utils.TimeUUID.Generator.nextTimeUUID;
  
  @State(Scope.Thread)
  @Warmup(iterations = 4, time = 1, timeUnit = TimeUnit.SECONDS)
  @Measurement(iterations = 8, time = 4, timeUnit = TimeUnit.SECONDS)
  @Fork(value = 1, jvmArgsAppend = "-Xmx512M")
  @OutputTimeUnit(TimeUnit.NANOSECONDS)
  @BenchmarkMode(Mode.SampleTime)
  public class MessageOutBench
  {
      @Param({ "true", "false" })
      private boolean withParams;
  
      private Message msgOut;
      private ByteBuf buf;
      private InetAddressAndPort addr;
  
      @Setup
      public void setup()
      {
          DatabaseDescriptor.daemonInitialization();
  
          TimeUUID timeUuid = nextTimeUUID();
          Map<ParamType, Object> parameters = new EnumMap<>(ParamType.class);
  
          if (withParams)
          {
              parameters.put(ParamType.TRACE_SESSION, timeUuid);
          }
  
          addr = InetAddressAndPort.getByAddress(InetAddresses.forString("127.0.73.101"));
          msgOut = Message.builder(ECHO_REQ, NoPayload.noPayload)
                          .from(addr)
                          .build();
          buf = Unpooled.buffer(1024, 1024); // 1k should be enough for everybody!
      }
  
      @Benchmark
      public int serialize40() throws Exception
      {
          return serialize(MessagingService.VERSION_40);
      }
  
      private int serialize(int messagingVersion) throws IOException
      {
          try (DataOutputBuffer out = new DataOutputBuffer())
          {
              Message.serializer.serialize(Message.builder(msgOut).withCreatedAt(nanoTime()).withId(42).build(),
                                           out, messagingVersion);
              DataInputBuffer in = new DataInputBuffer(out.buffer(), false);
              Message.serializer.deserialize(in, addr, messagingVersion);
              return msgOut.serializedSize(messagingVersion);
          }
      }
  }
  