def incrementByteArray()

in spark/hbase-spark/src/main/scala/org/apache/hadoop/hbase/spark/datasources/Utils.scala [90:119]

• 26 lines of code
• 7 McCabe index (conditional complexity)

  def incrementByteArray(array: Array[Byte]): Array[Byte] = {
    if (array.length == 0) {
      return null
    }
    var index = -1 // index of the byte we have to increment
    var a = array.length - 1

    while (a >= 0) {
      if (array(a) != (-1).toByte) {
        index = a
        a = -1 // break from the loop because we found a non -1 element
      }
      a = a - 1
    }

    if (index < 0) {
      return null
    }
    val returnArray = new Array[Byte](array.length)

    for (a <- 0 until index) {
      returnArray(a) = array(a)
    }
    returnArray(index) = (array(index) + 1).toByte
    for (a <- index + 1 until array.length) {
      returnArray(a) = 0.toByte
    }

    returnArray
  }