Tomás Duhourq tomduhourq

Applied Functional Programming with Scala - Notes

1. Mastering Functions

A function is a mapping from one set, called a domain, to another set, called the codomain. A function associates every element in the domain with exactly one element in the codomain. In Scala, both domain and codomain are types.

val square : Int => Int = x => x * x

After scouring the internet and piece-mealing together the correct way to do this, here is a step-by-step, all-in-one-place guide to making logback STFU when running your unit tests.

Here's how to do it

Save the following as logback-test.xml under src/test/resources:

<configuration>
  <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
    <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
      <pattern>%msg%n</pattern>

	#!/usr/bin/env python

	import boto
	import sys, os
	from boto.s3.key import Key
	from boto.exception import S3ResponseError


	DOWNLOAD_LOCATION_PATH = os.path.expanduser("~") + "/s3-backup/"
	if not os.path.exists(DOWNLOAD_LOCATION_PATH):

	def getUser(id: Long): Future[User] = ???

	/**
	* this is for pussies developers
	* @param ids
	* @return
	*/
	def getUsersBy(ids: Future[List[Long]]): Future[List[User]] =
	for {
	xs <- ids

	# Make sure you grab the latest version
	curl -OL https://github.com/google/protobuf/releases/download/v3.2.0/protoc-3.2.0-linux-x86_64.zip

	# Unzip
	unzip protoc-3.2.0-linux-x86_64.zip -d protoc3

	# Move protoc to /usr/local/bin/
	sudo mv protoc3/bin/* /usr/local/bin/

	# Move protoc3/include to /usr/local/include/

	package com.brs;

	import org.slf4j.Logger;
	import org.slf4j.LoggerFactory;

	/**
	* Simple class that we use to trigger a log statement.
	*/
	public class ExampleThatLogs {