Jakob Dobrzynski jakob85

Running redis using upstart on Ubuntu

I've been trying to understand how to setup systems from the ground up on Ubuntu. I just installed redis onto the box and here's how I did it and some things to look out for.

To install:

If your csv doesn't contain escaped newlines then it is pretty easy to do a progressive parsing without putting the whole file into memory. The iteratee library comes with a method search inside play.api.libs.iteratee.Parsing :

def search (needle: Array[Byte]): Enumeratee[Array[Byte], MatchInfo[Array[Byte]]]

which will partition your stream into Matched[Array[Byte]] and Unmatched[Array[Byte]]

Then you can combine a first iteratee that takes a header and another that will fold into the umatched results. This should look like the following code:

// break at each match and concat unmatches and drop the last received element (the match)

	package daos

	import scala.concurrent.ExecutionContext
	import scala.concurrent.Future
	import play.api.Play.current
	import play.modules.reactivemongo._
	import reactivemongo.api._
	import reactivemongo.api.indexes._
	import reactivemongo.bson._
	import reactivemongo.bson.handlers.BSONReader

	package core.dao

	import scala.concurrent.Future

	import play.api.Logger

	import reactivemongo.core.commands.LastError
	import reactivemongo.core.errors.DatabaseException

	import core.db.MongoHelper

	@(field:Field, min:Int=1)(f: (Field, Int) => Html)
	@{
	(0 until math.max(if (field.indexes.isEmpty) 0 else field.indexes.max + 1, min)).map(i => f(field("[" + i + "]"),i))
	}