def writeObject()

in scala/src/main/org/apache/spark/api/csharp/SerDe.scala [192:264]
67 lines of code
21 McCabe index (conditional complexity)

  def writeObject(dos: DataOutputStream, value: Object): Unit = {
    // for some method invocation, the return type is Unit. Use () to denote Unit here
    if (value == null || value == ()) {
      writeType(dos, "void")
    } else {
      value.getClass.getName match {
        case "java.lang.String" =>
          writeType(dos, "character")
          writeString(dos, value.asInstanceOf[String])
        case "long" | "java.lang.Long" =>
          writeType(dos, "double")
          writeDouble(dos, value.asInstanceOf[Long].toDouble)
        case "float" | "java.lang.Float" =>
          writeType(dos, "double")
          writeDouble(dos, value.asInstanceOf[Float].toDouble)
        case "double" | "java.lang.Double" =>
          writeType(dos, "double")
          writeDouble(dos, value.asInstanceOf[Double])
        case "int" | "java.lang.Integer" =>
          writeType(dos, "integer")
          writeInt(dos, value.asInstanceOf[Int])
        case "boolean" | "java.lang.Boolean" =>
          writeType(dos, "logical")
          writeBoolean(dos, value.asInstanceOf[Boolean])
        case "java.sql.Date" =>
          writeType(dos, "date")
          writeDate(dos, value.asInstanceOf[Date])
        case "java.sql.Time" =>
          writeType(dos, "time")
          writeTime(dos, value.asInstanceOf[Time])
        case "java.sql.Timestamp" =>
          writeType(dos, "time")
          writeTime(dos, value.asInstanceOf[Timestamp])
        case "[B" =>
          writeType(dos, "raw")
          writeBytes(dos, value.asInstanceOf[Array[Byte]])
        // TODO: Types not handled right now include
        // byte, char, short, float

        // Handle arrays
        case "[Ljava.lang.String;" =>
          writeType(dos, "list")
          writeStringArr(dos, value.asInstanceOf[Array[String]])
        case "[I" =>
          writeType(dos, "list")
          writeIntArr(dos, value.asInstanceOf[Array[Int]])
        case "[J" =>
          writeType(dos, "list")
          writeDoubleArr(dos, value.asInstanceOf[Array[Long]].map(_.toDouble))
        case "[D" =>
          writeType(dos, "list")
          writeDoubleArr(dos, value.asInstanceOf[Array[Double]])
        case "[Z" =>
          writeType(dos, "list")
          writeBooleanArr(dos, value.asInstanceOf[Array[Boolean]])
        case "[[B" =>
          writeType(dos, "list")
          writeBytesArr(dos, value.asInstanceOf[Array[Array[Byte]]])
        case otherName =>
          // Handle array of objects
          if (otherName.startsWith("[L")) {
            val objArr = value.asInstanceOf[Array[Object]]
            writeType(dos, "list")
            writeType(dos, "jobj")
            dos.writeInt(objArr.length)
            objArr.foreach(o => writeJObj(dos, o))
          } else {
            writeType(dos, "jobj")
            writeJObj(dos, value)
          }
      }
    }
  }