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• Message.scala

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com.github.jeroenr.tepkin.protocol.message.Message.scala Maven / Gradle / Ivy

package com.github.jeroenr.tepkin.protocol.message

import java.nio.ByteOrder

import akka.util.ByteString
import com.github.jeroenr.bson.Writable

trait Message extends Writable {

  implicit val byteOrder = ByteOrder.LITTLE_ENDIAN

  val requestID: Int = RequestIDGenerator.generate

  def responseTo: Int

  def opCode: Int

  def encodeBody: ByteString

  override def encode: ByteString = {
    val body = encodeBody

    ByteString.newBuilder
      .putInt(body.length + 16) // header length is always 16
      .putInt(requestID)
      .putInt(responseTo)
      .putInt(opCode)
      .append(body)
      .result()
  }
}