taisukeoe’s gists

taisukeoe / gist:6343272

Last active December 21, 2015 17:49

awscala.ec2.Instanceに、単純なssh/scpをscala-ssh非依存で実行させてみるてすつ。

	def process(command: String, keyPairFile: File, sshOption: String = "-o StrictHostKeyChecking=no -t -t"): Either[String, String] = {
	import sys.process._
	try {
	Right(s"echo ${command}" #&& "echo exit" #> s"ssh ${sshOption} -i ${keyPairFile.getAbsolutePath} ec2-user@${publicDN}" !!)
	} catch { case e: Exception => Left(e.toString) }
	}

	def scp(file: File, keyPairFile: File, scpOption: String = "-o StrictHostKeyChecking=no"): Either[String, String] = {
	import sys.process._
	try {

taisukeoe / UIDemoActivity.scala

Last active April 16, 2017 05:01

How to force to execute Future callback function in Android UIThread.

	import scala.concurrent._
	import ExecutionContext.Implicits.global
	import android.util.Log
	import android.widget.TextView

	class UIDemoActivity extends Activity {

	override def onCreate(bundle: Bundle) {
	super.onCreate(bundle)
	val tv = new TextView(this)

taisukeoe / gist:052a252bcb3aeda5f853

Created June 5, 2014 06:15

Xcode 6 beta crash report in opening .sks file

	Process: Xcode [742]
	Path: /Applications/Xcode6-Beta.app/Contents/MacOS/Xcode
	Identifier: com.apple.dt.Xcode
	Version: 6.0 (6194.21)
	Build Info: IDEFrameworks_KLONDIKE-6194021000000000~12
	Code Type: X86-64 (Native)
	Parent Process: launchd [172]
	Responsible: Xcode [742]
	User ID: 502

taisukeoe / Calculator.scala

Created September 1, 2014 15:43

某勉強会の予定を調整さんに投げる用プロジェクト

	import com.github.nscala_time.time.Imports._

	import annotation.tailrec
	import org.joda.time.DateTimeConstants

	object Calculator extends App{
	val start = nextMonday(DateTime.now.toLocalDate)
	val days = start :: Stream.iterate(start + 1.day)(_ + 1.day).takeWhile(_.getDayOfWeek != DateTimeConstants.MONDAY).toList

	val result = days.map {

taisukeoe / dna.scala

Last active August 29, 2015 14:10

for rosalind

	package hemplant.rosalind.dna

	sealed abstract trait Nucleotide{
	def complementary:Nucleotide = Nucleotide.complementary(this)
	}
	case object A extends Nucleotide
	case object T extends Nucleotide
	case object G extends Nucleotide
	case object C extends Nucleotide

taisukeoe / pattaernMatch.scala

Created February 21, 2015 13:36

パターンマッチの網羅性チェックとifガード節

	scala> def func(s:Option[String]) = s match{case Some(x) if x.size > 0 => x}
	func: (s: Option[String])String

	scala> def func(s:Option[String]) = s match{case Some(x) => x}
	<console>:7: warning: match may not be exhaustive.
	It would fail on the following input: None
	def func(s:Option[String]) = s match{case Some(x) => x}
	^
	func: (s: Option[String])String

taisukeoe / build.sbt

Created April 20, 2015 14:21

FizzBuzzのbench

jmhSettings

taisukeoe / callback2func.scala

Last active August 29, 2015 14:25

Break down Callback which has two ore more functions into the same number of PartialFunction

	trait Callback{
	def onSet(s:Set[String]):Unit
	def onList(l:List[String]):Unit
	}
	def funcWithCallback(s:String,callback:Callback):Unit = ???

	def funcAsFuture(s:String):Future[Traversable[String]] = {
	val p = Promise[Traversable[String]]()
	val f = p.future
	funcWithCallback(s,new Callback{

taisukeoe / scalaz-streams-Task-es.scala

Last active August 29, 2015 14:26

scalaz-streamsのTask.startは、既存のTaskの実行Threadも変更できそう

	import streams._
	import util._
	implicit val s = Strategy.fromExecutionContext(scala.concurrent.ExecutionContext.Implicits.global)
	val t = Task(println(Thread.currentThread.getName))

	// Exiting paste mode, now interpreting.

	import streams._
	import util._
	s: streams.util.Strategy = streams.util.Strategy$$anon$1@60d8175

taisukeoe / projection.scala

Last active September 2, 2015 05:09

Row wise operations got weired

	scala> val ndArray = (1d to 8d by 1).mkNDArray(Array(2,2,2),NDOrdering.C)
	ndArray: org.nd4j.linalg.api.ndarray.INDArray =
	[[[1.00,2.00]
	[3.00,4.00]]
	[[5.00,6.00]
	[7.00,8.00]]]

	scala> ndArray.sliceP.map(s => s.rowP.map(r => r*r))
	res12: org.nd4j.linalg.api.ndarray.INDArray =
	[[[1.00,2.00]

Taisuke Oe taisukeoe