hardy soopercorp

This article is now published on my website: A one-off git repo server.

Writing Resilient Reactive Applications

This guide is a first draft (that will end up in the official docs) on writing resilient code for production with the Couchbase Java SDK. At the end, the reader will be able to write code that withstands bugs, latency issues or anything else that can make their application fail.

Note that lots of concepts can be applied for both synchronous and asynchronous access. When necessary, both patterns are discussed separately. Also, the focus is on database interaction, but if you are using RxJava as part of your stack you can apply most of the principles there as well (and should!).

RxJava 101 Recap: Cold and Hot Observables

When working with Observables, it is important to understand the difference between cold and hot. Cold Observables will start to emit events once a Observer subscribes, and will do it "fresh" for each Observer. Hot Observables instead are starting to emit data as soon as it becomes available, and will return the same (or parts of the same)

	# Video: http://rubyhoedown2008.confreaks.com/08-chris-wanstrath-keynote.html

	Hi everyone, I'm Chris Wanstrath.

	When Jeremy asked me to come talk, I said yes. Hell yes. Immediately. But
	then I took a few moments and thought, Wait, why? Why me? What am I supposed
	to say that's interesting? Something about Ruby, perhaps. Maybe the
	future of it. The future of something, at least. That sounds
	keynote-y.

	namespace :tags do
	task :generate do
	puts 'Generating tags...'
	require 'rubygems'
	require 'jekyll'
	include Jekyll::Filters

	options = Jekyll.configuration({})
	site = Jekyll::Site.new(options)
	site.read_posts('')

	/*
	* object.watch polyfill
	*
	* 2012-04-03
	*
	* By Eli Grey, http://eligrey.com
	* Public Domain.
	* NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
	*/

	// ----------------------------------------------------------
	// A short snippet for detecting versions of IE in JavaScript
	// without resorting to user-agent sniffing
	// ----------------------------------------------------------
	// If you're not in IE (or IE version is less than 6) then:
	// ie === 0
	// If you're in IE (>=6) then you can determine which version:
	// ie === 7; // IE7
	// Thus, to detect IE:
	// if (ie) {}

	###
	Module dependencies
	###
	require.paths.unshift "#{__dirname}/lib/support/express-csrf/"
	require.paths.unshift "#{__dirname}/lib/support/node_hash/lib/"

	express = require 'express'
	app = module.exports = express.createServer()

	RedisStore = require 'connect-redis'

	DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
	Version 2, December 2004

	Copyright (C) 2011 YOUR_NAME_HERE <YOUR_URL_HERE>

	Everyone is permitted to copy and distribute verbatim or modified
	copies of this license document, and changing it is allowed as long
	as the name is changed.

	DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE

	# Inspired by http://rarlindseysmash.com/posts/stupid-programmer-tricks-and-star-wars-gifs
	# via https://news.ycombinator.com/item?id=6633490
	# Requires
	# * a reasonably recent ffmpeg suite
	# * Graphicsmagick or ImageMagick
	# * optionally: Gifsicle
	# * an input video file
	# Usage:
	# python gifgif.py a_video_file.avi