matope

Dynamo: Amazonの高可用性Key-value Store[和訳]

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原題：Dynamo: Amazon’s Highly Available Key-value Store

原文: Amazon's Dynamo - All Things Distributed (PDF Version)

This article is translated by @ono_matope. Please contact me if any problem.

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labocho

##############################
# Formatting
##############################

# Date を "2013年8月31日 (土)" の形式に
Handlebars.registerHelper "d", (date) ->
  return "" unless date
  weekdays = ["日", "月", "火", "水", "木", "金", "土"]
  "#{date.getFullYear()}年#{date.getMonth() + 1}月#{date.getDate()}日 (#{weekdays[date.getDay()]})"

xuwei-k

val buildFiles = SettingKey[Map[File, Seq[Byte]]]("build-files")

buildFiles := getBuildFiles((baseDirectory in ThisBuild).value) 

def getBuildFiles(base: File) =
  ((base * "*.sbt") +++ ((base / "project") ** ("*.scala" | "*.sbt"))).get.map{
    f => f -> collection.mutable.WrappedArray.make[Byte](Hash(f))
  }.toMap

def changed(base: File, files: Map[File, Seq[Byte]]): Boolean =

Shinpeim

Better Java としての Scala

Hello World

• src/main/scala/Main.scala

object Main {
  def main(args: Array[String]): Unit = {
    println("hello scala!")

seratch

NOTICE: This is just a draft of Skinny framework introduction (written in Japanese for now). English version will be published soon.

Skinny Framework とは

https://github.com/seratch/skinny-framework

Skinny Framework は Scala のフルスタックな Web アプリケーション開発フレームワークです。2014/03 を目処に最初の安定バージョン 1.0.0 をリリースするべく精力的に開発しています。（追記: 2014/03/28 に 1.0.0 がリリースされました）

seraphy

package jp.seraphyware.javalangtest;

import java.beans.Expression;

/**
 * リフレクションを直接使うよりも簡単にメソッド名で
 * オブジェクトにアクセスする方法の例.<br>
 */
public class ExpressionTest {

taea

Rails 起動しようとするとこんなエラーでる

PG::ConnectionBad at /
could not connect to server: Connection refused
Is the server running on host "localhost" (::1) and accepting
TCP/IP connections on port 5432?
could not connect to server: Connection refused
Is the server running on host "localhost" (127.0.0.1) and accepting
TCP/IP connections on port 5432?

gakuzzzz

Scala の省略ルール早覚え

このルールさえ押さえておけば、読んでいるコードが省略記法を使っていてもほぼ読めるようになります。

メソッド定義

def concatAsString(a: Int, b: Int): String = {
  val a_ = a.toString();
  val b_ = b.toString();

john2x

Clojure Destructuring Tutorial and Cheat Sheet

(Related blog post)

Simply put, destructuring in Clojure is a way extract values from a datastructure and bind them to symbols, without having to explicitly traverse the datstructure. It allows for elegant and concise Clojure code.

Vectors and Sequences

nobuoka

import java.io.IOException;

import com.google.api.client.http.GenericUrl;
import com.google.api.client.http.HttpRequest;
import com.google.api.client.http.HttpRequestFactory;
import com.google.api.client.http.HttpResponse;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.http.javanet.NetHttpTransport;

public class GoogleHttpJavaClientExample {