| module System.Hdfs where | |
| import Data.ByteString (ByteString) | |
| import qualified Data.ByteString as B | |
| import Data.Int | |
| import Data.Vector (Vector) | |
| import Data.Word | |
| import Foreign.Ptr | |
| type Size = Int32 |
| #!/usr/bin/env sh | |
| ## | |
| # This is script with usefull tips taken from: | |
| # https://github.com/mathiasbynens/dotfiles/blob/master/.osx | |
| # | |
| # install it: | |
| # curl -sL https://raw.github.com/gist/2108403/hack.sh | sh | |
| # |
| class ActionDispatch::Routing::Mapper | |
| def draw(routes_name) | |
| instance_eval(File.read(Rails.root.join("config/routes/#{routes_name}.rb"))) | |
| end | |
| end | |
| BCX::Application.routes.draw do | |
| draw :api | |
| draw :account | |
| draw :session |
| Latency Comparison Numbers (~2012) | |
| ---------------------------------- | |
| L1 cache reference 0.5 ns | |
| Branch mispredict 5 ns | |
| L2 cache reference 7 ns 14x L1 cache | |
| Mutex lock/unlock 25 ns | |
| Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
| Compress 1K bytes with Zippy 3,000 ns 3 us | |
| Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
| Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
Essential blueprint of Play2 architecture is pretty simple and it should be easy to explain in a fairly short blog post. The framework can be understood progressively at different levels; each time having better exposure to some aspects of its design.
The core of Play2 is really small, surrounded by a fair amount of useful APIs, services and structure to make Web Programming tasks easier.
Basically, Play2 is an API that abstractly have the folllowing type
| import org.eclipse.jetty.websocket.WebSocket; | |
| import org.eclipse.jetty.websocket.WebSocketServlet; | |
| import javax.servlet.ServletException; | |
| import javax.servlet.http.HttpServletRequest; | |
| import javax.servlet.http.HttpServletResponse; | |
| import java.io.IOException; | |
| import java.io.PrintWriter; | |
| import java.util.*; |
| "copy file" in { | |
| var i = 0 | |
| val fileGenerator = Enumerator.fromCallback( () => | |
| if(i<1000){ i+=1; Future.successful(Some((new java.util.Date).getTime.toString + "\n")) } else Future(None) | |
| ) | |
| val f = FileChannel("/tmp/testwrite.txt").delete.writing.create | |
| val f2 = FileChannel("/tmp/testwrite2.txt").delete.writing.create | |
| fileGenerator // generates data |
| <!-- | |
| This is the HTML portion of the infinite scroll/pagination with Rails and AngularJS tutorial | |
| Required libraries for the tutorial and indicated as "Important", | |
| together with implementation specific libraries marked as "Optional" | |
| --> | |
| <!DOCTYPE html> | |
| <html> | |
| <title>Clips</title> | |
| <!-- Important --> |
| ;; Keybonds | |
| (global-set-key [(hyper a)] 'mark-whole-buffer) | |
| (global-set-key [(hyper v)] 'yank) | |
| (global-set-key [(hyper c)] 'kill-ring-save) | |
| (global-set-key [(hyper s)] 'save-buffer) | |
| (global-set-key [(hyper l)] 'goto-line) | |
| (global-set-key [(hyper w)] | |
| (lambda () (interactive) (delete-window))) | |
| (global-set-key [(hyper z)] 'undo) |
| ############################################################################### | |
| # The MIT License | |
| # | |
| # Copyright 2012-2014 Jakub Jirutka <jakub@jirutka.cz>. | |
| # | |
| # Permission is hereby granted, free of charge, to any person obtaining a copy | |
| # of this software and associated documentation files (the "Software"), to deal | |
| # in the Software without restriction, including without limitation the rights | |
| # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| # copies of the Software, and to permit persons to whom the Software is |