ryanpbrewster

import play.api.libs.json._
val pattern = "yyyy-MM-dd'T'HH:mm:ssz" 
implicit val dateFormat = Format[DateTime](
  Reads.jodaDateReads(pattern),
  Writes.jodaDateWrites(pattern)
)
Json.toJson(new DateTime("1952-03-11"))
// => "1952-03-11T00:00:00PDT"

ryanpbrewster

def sort[T <% Ordered[T]](seq: Seq[T]): Seq[T] = seq match {
  case Seq() => Seq() 
  case x +: xs =>
    val (before, after) = xs partition (_ < x) 
    sort(before) ++ sort(x +: after) 
} 
sort(IndexedSeq("Greg", "Eishay", "Andrew")) 
// => List(Andrew, Eishay, Greg)

ryanpbrewster

import reflect.ClassTag
import reflect.ClassTag
def filterBy[T: ClassTag](seq: Seq[Any]) = seq collect { 
  case x: T => x
}
filterBy[String](Seq(1, "two", "three"))
// => Seq[String] = List(two, three)

ryanpbrewster

val (x, y): (Int, Int) = ("a", "b")
:7: error: type mismatch;
 found   : String("a")
 required: Int
       val (x, y): (Int, Int) = ("a", "b")

ryanpbrewster

val (a, b): (Int, Int) = ("a", "b")
:7: warning: non variable type-argument Int in type pattern (Int, Int) is unchecked since it is eliminated by erasure
       val (a, b): (Int, Int) = ("a", "b")
                   ^
java.lang.ClassCastException: java.lang.String cannot be cast to java.lang.Integer
...

ryanpbrewster

- (void)authenticateWithFacebookToken:(NSString *)accessToken runningThisOnSuccess:(void (^)())success orThisOnFailure:(void (^)())failure
{
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://example.com/authenticateMobile/facebook"]];
    NSError *error;
    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:@{@"accessToken": accessToken} options:0 error:&error];
    if (!jsonData) {
        runErrorHandling(error);
        failure();
        return;
    }

ryanpbrewster

import play.api.libs.json.Json
import play.api.mvc._
import securesocial.core._
 
class AuthController extends Controller {
  private implicit val readsOAuth2Info = Json.reads[OAuth2Info]
  // Some of the below code is taken from ProviderController in SecureSocial
  def authenticateMobile(providerName: String) = Action(parse.json) { implicit request =>
    // format: { "accessToken": "..." }
    val oauth2Info = request.body.asOpt[OAuth2Info]

ryanpbrewster

  // Get a file within the .fortytwo folder in the user's home directory
  def getUserFile(filename: String): File =
    new File(Seq(System.getProperty("user.home"), ".fortytwo", filename).mkString(File.separator))
 
  override def onLoadConfig(config: Configuration, path: File, classloader: ClassLoader, mode: Mode.Mode) = {
    val localConfig = Configuration(ConfigFactory.parseFile(getUserFile("local.conf")))
    super.onLoadConfig(config ++ localConfig, path, classloader, mode)
  }

ryanpbrewster

  import play.api.Play.current
  def coolFeatureEnabled = current.configuration.getBoolean("coolFeatureEnabled").getOrElse(false)
  def myAction() = Action { request =>
    if (coolFeatureEnabled) {
      // do cool stuff
    } else {
      // do regular stuff
    }
  }

ryanpbrewster

class ActorBuilderImpl extends ActorBuilder {
  def apply(system: ActorSystem, provider: Provider[_ <: Actor]): ActorRef =
    system.actorOf(Props { provider.get })
}