goungoun

아래 자료는 황장군님의 강의자료를 GCP에서 테스트한 결과입니다.

# ETL
- fluntd (streaming)
- embulk (batch) http://www.embulk.org/docs/

embulk를 리눅스에 설치해보자. jar를 copy 하면 됨

~~~bash
curl --create-dirs -o ~/.embulk/bin/embulk -L "https://dl.embulk.org/embulk-latest.jar"

goungoun

#!/bin/bash

# A simple test script to demonstrate how to find the
# "absolute path" at which a script is running. Used
# to avoid some of the pitfals of using 'pwd' or hard-
# coded paths when running scripts from cron or another
# directory.
#
# Try it out:
# run the script from the current directory, then 

goungoun

object regexpPractice {
  println("src/main/scala/org/graphframes/pattern/patterns.scala")
                                                  //> src/main/scala/org/graphframes/pattern/patterns.scala
  
  val original = "[a-zA-Z0-9_]+".r                //> original  : scala.util.matching.Regex = [a-zA-Z0-9_]+
  val fix = "[a-zA-Z0-9_.:/]+".r                  //> fix  : scala.util.matching.Regex = [a-zA-Z0-9_.:/]+
  
  "http://www.google.com" match {
    case original(_*) => "match!"
    case fix(_*) => "fix match!"

goungoun

  /**
   * Exercise 2
   */
    def balance(chars: List[Char]): Boolean = {

      def num (x: Char): Int = x match {
        case ')' => 1
        case '(' => -1
        case _ => 0
      }