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@etorreborre
etorreborre / gist:5078824
Last active November 16, 2024 17:40
A good summary of Scala types from http://bit.ly/XjSVKw
class Outer {
class Inner
type Type
}
trait Trait
object Object extends Outer {
val inner = new Inner
}
class OuterP[A] {
class InnerP[B]
/**
* "Select" off the first future to be satisfied. Return this as a
* result, with the remainder of the Futures as a sequence.
*
* @param fs a scala.collection.Seq
*/
def select[A](fs: Seq[Future[A]])(implicit ec: ExecutionContext): Future[(Try[A], Seq[Future[A]])] = {
@tailrec
def stripe(p: Promise[(Try[A], Seq[Future[A]])],
heads: Seq[Future[A]],
@viktorklang
viktorklang / NettyChannelFutureToScalaFuture.scala
Created December 19, 2012 16:57
Shows how you can use the Promise API of SIP-14 to bridge between Netty ChannelFutures and scala.concurrent.Future
object NettyFutureBridge {
import scala.concurrent.{ Promise, Future }
import scala.util.Try
import java.util.concurrent.CancellationException
import org.jboss.netty.channel.{ Channel, ChannelFuture, ChannelFutureListener }
def apply(nettyFuture: ChannelFuture): Future[Channel] = {
val p = Promise[Channel]()
nettyFuture.addListener(new ChannelFutureListener {
def operationComplete(future: ChannelFuture): Unit = p complete Try(
@piscisaureus
piscisaureus / pr.md
Created August 13, 2012 16:12
Checkout github pull requests locally

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = [email protected]:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

@tankchintan
tankchintan / gist:1335220
Last active November 30, 2019 00:17
Procedure for installing and setting Sun JDK Java on Default Amazon Linux AMI
# First verify the version of Java being used is not SunJSK.
java -version
# Get the latest Sun Java SDK from Oracle http://www.oracle.com/technetwork/java/javase/downloads/jdk-7u1-download-513651.html
wget http://download.oracle.com/otn-pub/java/jdk/7u1-b08/jdk-7u1-linux-i586.rpm
# Rename the file downloaded, just to be nice
mv jdk-7u1-linux-i586.rpm\?e\=1320265424\&h\=916f87354faed15fe652d9f76d64c844 jdk-7u1-linux-i586.rpm
# Install Java