isaiah

source 'https://rubygems.org'

gem 'react-rails', '~> 1.0.0.pre', github: 'reactjs/react-rails'

gem 'haml-rails'
gem 'bootstrap-sass'

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.2.0.beta1'
# Use postgresql as the database for Active Record

isaiah

$ curl localhost:8080 -I

HTTP/1.1 200 OK
Content-Type: text/html
ETag: "0f8cca87cff164a57033f54d75dc1288"
Cache-Control: max-age=0, private, must-revalidate
X-Runtime: 0.017000
Server: Jubilee(2.1.0)
Transfer-Encoding: chunked
Date: Thu, 24 Jul 2014 14:38:03 GMT

isaiah

package main

import (
	"bytes"
	"code.google.com/p/portaudio-go/portaudio"
	"encoding/binary"
	"fmt"
	"io"
	"log"
	"os"

isaiah

n = 100000

# taken from [here](http://blog.lojic.com/2008/12/22/ruby-dynamic-method-invocation-performance/), 
# but the original one use the same string all the time, which doesn't reflect real world situation

bm(12) {|x|
  x.report("orig") { n.times { test = "stormy weather"; test.length } }
  x.report("call") { n.times { test = "stormy weather"; m = test.method(:length); m.call } }
  x.report("send") { n.times { test = "stormy weather"; test.send(:length) } }
  x.report("eval") { n.times { test = "stormy weather"; eval "test.length" } }

isaiah

Problem

Sometimes you found that jruby always complain about cannot find class you defined in your precious java class, that jruby failed to load the Service that defines all the classes in ruby space.

How it work

Let's talk about the way jruby load native extension, take puma as an example, Assume you have 'puma/http11.jar' in your load path, with:

isaiah

require "rubygems"
require "hmac-sha1"
require "base64"

ankoder_access_key = ANKODER_ACCESS_KEY
private_key = ANKODER_PRIVATE_KEY
ankoder_date = Time.now.strftime("%a, %d %b %Y %X GMT")
ankoder_action = "POST"
ankoder_path = "/download"
string = "-#{ankoder_date}-#{ankoder_action}-#{ankoder_path}-"

isaiah

require "rubygems"
require "hmac-sha1"
require "base64"
ankoder_access_key = ANKODER_ACCESS_KEY
private_key = ANKODER_PRIVATE_KEY
ankoder_date = Time.now.strftime("%a, %d %b %Y %X GMT")
ankoder_action = "GET"
ankoder_path = "/video.xml"
string = "-#{ankoder_date}-#{ankoder_action}-#{ankoder_path}-"