mmalek-sa

Automatic updates with yum-cron

If you are on RHEL make sure optional repos are enabled:

subscription-manager repos --enable rhel-7-server-optional-rpms

Then install yum-cron:

cb372

Category theory jargon cheat sheet

A primer/refresher on the category theory concepts that most commonly crop up in conversations about Scala or FP. (Because it's embarassing when I forget this stuff!)

I'll be assuming Scalaz imports in code samples, and some of the code may be pseudo-Scala.

Functor

A functor is something that supports map.

jmruc

To generate a pom.xml file just run gradle writeNewPom

If you want to generate it as pom.xml in the root of the project, replace writeTo("$buildDir/newpom.xml") with writeTo("pom.xml")

tlrobinson

complete -W "\`grep -oE '^[a-zA-Z0-9_-]+:([^=]|$)' Makefile | sed 's/[^a-zA-Z0-9_-]*$//'\`" make

tovbinm

****************************************************************************
**** FaunaDB Relations: GraphQL schemas, mutations and resulting documents *
****************************************************************************
**** One to One Relation ***************************************************
SCHEMA:
type User { name: String!  car: Car }
type Car  { plate: String! owner: User }
MUTATION:
mutation Create {
  createUser(data: {

mletterle

Combining Two (or more potentially) Git Repos

###Moving one repo into a subdirectory of the other

Preserves notes and sets commit details to author details

in newrepo

fomkin

apply plugin: 'application'
apply plugin: 'scala'

repositories {
    mavenLocal()
    mavenCentral()
}

mainClassName = 'PushkaTest.MainApp'

pchiusano

I was curious about the results reported here, which reports that Scala's mutable maps are slower than Java's: http://www.infoq.com/news/2011/11/yammer-scala

In my tests, Scala's OpenHashMap equals or beats java's HashMap:

Insertion 100k elements (String keys) time in ms:

• scala HashMap: 92.75
• scala OpenHashMap: 14.03125
• java HashMap: 15.78125

julianpeeters

//Adapted from: https://github.com/jcrobak/avro-examples

import org.apache.spark.SparkContext
import org.apache.spark.SparkContext._

import org.apache.avro.generic.GenericRecord
import org.apache.avro.mapred.AvroKey
import org.apache.avro.mapreduce.AvroKeyInputFormat
import org.apache.hadoop.io.NullWritable
import org.apache.commons.lang.StringEscapeUtils.escapeCsv

calippo

object Mappable {
  implicit class ToMapOps[A](val a: A) extends AnyVal {
    import shapeless._
    import ops.record._

    def toMap[L <: HList](implicit
      gen: LabelledGeneric.Aux[A, L],
      tmr: ToMap[L]
    ): Map[String, Any] = {
      val m: Map[tmr.Key, tmr.Value] = tmr(gen.to(a))