therealcisse

package teikametrics

import scala.collection.SortedMap

/**
  * Immutable implementation of an LRU cache.
  *
  * @author Twitter
  *
  *  Copy pasted from the version previously in twitter-util v19.1.0 at

therealcisse

// comparing to kotlin version: https://proandroiddev.com/extension-classes-f9dcf5878b71

sealed trait Feature
object SomeFeature extends Feature

trait AppFeatures {
  def isEnabled(feature: Feature): Boolean
}

extension (appFeatures: AppFeatures) {

therealcisse

IntelliJ and recursive data structures

You may need to override toString on any recursive or deeply-nested data structure, since IntelliJ will ask the Java Debugger (JDB) to call toString all the time. This will blow up your memory.

Remote debugging

Useful for any number of reasons: testing on a different OS, using lots of memory/cpu resources you don't have locally, etc.

See an Intellij / IDEA guide for background.

therealcisse

package catssandbox

import aiyou._
import aiyou.implicits._
import cats._
import cats.data._
import org.atnos.eff._
import org.atnos.eff.all._
import org.atnos.eff.syntax.all._
import IOEffect._

therealcisse

*** Cluster Setup for Google Container Engine ***

0/  Install and configure local gcloud and kubectl: https://cloud.google.com/sdk/docs/
    > gcloud components install kubectl

1/  Configure Google Cloud account:
    > gcloud config set account YOUR_EMAIL_ADDRESS
    > gcloud config set project YOUR_PROJECT_ID
    > gcloud config set compute/zone us-west1-a
    > gcloud config set container/cluster example

therealcisse

/**
 * Is Date A Business Day?
 * @param cal 
 * @return boolean
 */
public boolean isBusinessDay(Calendar cal){
	// check if weekend
	if(cal.get(Calendar.DAY_OF_WEEK) == Calendar.SATURDAY || cal.get(Calendar.DAY_OF_WEEK) == Calendar.SUNDAY){
		return false;
	}

therealcisse

Restoo

Restaurant stock management app.

Getting started

Database

I'm using an in-memory h2 database. The database will be automatically created via a migration using Flyway

therealcisse

Libraries

• Web: Play (framework) or Finch (library)
• Actors: akka
• Asynchronous Programming: monix (for tasks, reactors, observables, scheduler etc)
• Authentication: Silhouette
• Authorization: Deadbolt
• Command-line option parsing: case-app
• CSV Parsing: delimited
• DB: doobie (for PostgreSQL)

therealcisse

package akka.http.scaladsl

import java.io.File

import akka.http.scaladsl.unmarshalling.Unmarshal
import akka.util.ByteString

import scala.concurrent.duration._

import akka.actor.ActorSystem

therealcisse

[Unit]
Description=carbon-cache instance %i (graphite)

[Service]
User=graphite
Group=graphite
ExecStartPre=/bin/rm -f /opt/graphite/storage/carbon-cache-%i.pid
ExecStart=/opt/graphite/bin/carbon-cache.py --instance=%i start
Type=forking
PIDFile=/opt/graphite/storage/carbon-cache-%i.pid