parse_fusion_log_line.scala

import scala.collection.mutable.ListBuffer
import scala.util.control.Breaks

def parseCdnLogLineV2(line: String): Array[String] = {
    val itemBuffer = new ListBuffer[String]()
    val length = line.length
    var startIndex = 0
    var delimiter = " "
    var elemStart = ""
    val loop = new Breaks
    var elemIndex = 0

    loop.breakable {
      while (true) {
        var endIndex = line.indexOf(delimiter, startIndex)
        if (endIndex == -1) {
          loop.break()
        }

        if (elemIndex == 4) {
          itemBuffer ++= line.substring(startIndex, endIndex).split(" ")
        } else {
          itemBuffer += line.substring(startIndex, endIndex)
        }
        if (delimiter == "]" || delimiter == "\"") {
          endIndex = endIndex + 1
        }

        if (endIndex + 1 >= length) {
          loop.break()
        }

        var token = line.charAt(endIndex + 1)
        if (token == '[') {
          delimiter = "]"
          startIndex = endIndex + 2
        } else if (token == '"') {
          delimiter = "\""
          startIndex = endIndex + 2
        } else {
          delimiter = " "
          startIndex = endIndex + 1
        }

        elemIndex = elemIndex + 1
      }
    }
    itemBuffer.toArray
  }