muller

#!/bin/bash 

B="b14"

case `uname` in
  Linux) OS="linux";;
  CYGWIN_NT-*)
    B="b15"
    OS="windows"
    ;;

muller

import java.util.BitSet;
import java.util.HashMap;

public class BooDecisions {
    public static void main(String[] args) {

        System.out.println(getType(true, false, false));
        System.out.println(getType(false, true, false));
        System.out.println(getType(false, true, true));

muller

maven:
  groupId: com.example.tutorial
  artifactId: address-book-protos
  version: 0.0.1

muller

from subprocess import call
PATH_TO_EXECUTABLE = "/path/to/executable"
def execute():
  call([PATH_TO_EXECUTABLE])

muller

Values vs External interactions

If I was to define the dependency arrow in UML 3.0 I would draw it in red with a pitchfork. It is evil.

External dependencies like databases or webservices will slow down your team. The development environment will get complex with installations, configurations and debugging.

Mocking isn't the only answer. Working with values only, allow you to implement a slice of your application in isolation.

Dependencies and rules

muller

package consumer

import akka.actor._
import akka.kafka.ConsumerMessage._
import akka.kafka._
import akka.kafka.scaladsl._
import akka.stream._
import akka.stream.scaladsl._
import akka.testkit._
import net.manub.embeddedkafka._

muller

import java.security.cert.X509Certificate
import javax.net.ssl.{KeyManager, SSLContext, X509TrustManager}

import akka.http.scaladsl.ConnectionContext

object NoSSL {
  def apply() = {
    object NoCheckX509TrustManager extends X509TrustManager {
      override def checkClientTrusted(chain: Array[X509Certificate], authType: String) = ()

muller

class CustomStage extends GraphStage[FlowShape[ByteString, ByteString]] {
    val in = Inlet[ByteString]("CustomStage.in")
    val out = Outlet[ByteString]("CustomStage.out")
    override val shape = FlowShape.of(in, out)

    override def createLogic(inheritedAttributes: Attributes): GraphStageLogic = new GraphStageLogic(shape) with InHandler with OutHandler {

        setHandlers(in, out, this)

muller

, {
      label: "Nakdi unconsumed events",
      graphStyle: "stacked",
      plots: [
        {
          facet: "unconsumed_events_0",
          filter: "$serverHost='cats-nua' $logfile='/var/log/scalyr-agent-2/containers/influx.log'",
          label: "0"
        }, {
          facet: "unconsumed_events_1",

muller

load("@io_bazel_rules_scala//scala:scala.bzl", "scala_library", "scala_binary")

scala_library(
    name = "sjsir",
    srcs = ["Test.scala"],
    deps = ["@scalajs//:library"],
    data = ["@scalajs//:compiler"],
    scalacopts = ["-Xplugin:external/scalajs/lib/scalajs-compiler_2.11.11-0.6.19.jar"],
    #scalacopts = ["-Xplugin:$(location @scalajs//:compiler)"], ??? location doesn't seems to be working 
)