afsalthaj

@ val path = java.nio.file.FileSystems.getDefault().getPath("/Users/afsalthaj/telstra/cij-orchestration/target/cij-orchestration-1.0.0-GA.jar")
path: java.nio.file.Path = /Users/afsalthaj/telstra/cij-orchestration/target/cij-orchestration-1.0.0-GA.jar

@ val x = ammonite.ops.Path(path)
x: os.Path = root/'Users/'afsalthaj/'telstra/"cij-orchestration"/'target/"cij-orchestration-1.0.0-GA.jar"

@ interp.load.cp(x)

afsalthaj

{ pkgs ? import <nixpkgs> {} }:
with import (builtins.fetchTarball {
  # Descriptive name to make the store path easier to identify
  name = "nixos-unstable-2019-10-04";
  # Commit hash for nixos-unstable as of Mon Sep 2 01:17:20 2019 -0400
  url = https://github.com/nixos/nixpkgs/archive/85b7d89892a4ea088d541a694addb2e363758e44.tar.gz;
  # Hash obtained using `nix-prefetch-url --unpack <url>`
  sha256 = "0wxv4jvv9gri8kjzijrxdd1ijprwbsgsnzmjk2n4yxi0j41jk2f6";
}) {};

afsalthaj

/** Usage: 
   {{{
      
      val expr = CronExpr.mk("15 9 * * *")

      expr flatMap (_.durationToNextExecution(ZonedDateTime.now()))
      expr flatMap (_.durationFromPreviousExecution(ZonedDateTime.now())

      expr flatMap (_.nextExecutionTimeFrom(ZonedDateTime.now())

afsalthaj

trait Equal[-A] extends EqualLaws[A] {
  def equal(a: A, b: A): Boolean  
}

object Equal {
  implicit val equalInt: Equal[Int] = new Equal[Int] {
     def equal(a: Int, b: Int) = a == b
  }
}

afsalthaj

bloop server

afsalthaj

- build.sbt
- src/main/scala
- project/build.properties

afsalthaj

import json
import boto3
import logging
logger = logging.getLogger()
logger.setLevel(logging.INFO)
class ZeroClustersAvailable(Exception): pass
class MoreThanOneClusterAvailable(Exception): pass
def lambda_handler(event, context):
  client = boto3.client('emr')
  logger.info("Trying to list the clusters that are in either waiting or running state")

afsalthaj

import json
import boto3
import logging
logger = logging.getLogger()
logger.setLevel(logging.INFO)
class ZeroClustersAvailable(Exception): pass
class MoreThanOneClusterAvailable(Exception): pass
def lambda_handler(event, context):
  client = boto3.client('emr')
  logger.info("Trying to list the clusters that are in either waiting or running state")

afsalthaj

// I don't know why I keep forgetting this, and having to go to API docs everytime, hence a gist for all those who are like me.
import java.time._
import java.time.format.DateTimeFormatter
import java.util._

val instant = Instant.now()

// Best thing to to get the current time at this zone
val localTime=  ZonedDateTime.now(ZoneId.of("Australia/Sydney"))
println("local time                     " + localTime)

afsalthaj

import scalaz.State
import scalaz._, Scalaz._
import StateInfo._

// A nice functional way to produce a simple table from a tree (minimal code, in real life tree can be further nested and state becomes super important)
// Nowhere it can go wrong, it traverses back and forth the table keys and values and pads empty spaces to match the maximum size of keys and values that's encountered
// up until then.
sealed trait Tree
case class Leaf(key: String, value: String) extends Tree
case class Both(left: Tree, right: Tree) extends Tree