MogileFS Client on JRuby!

Are you running JRuby in production? Do you want distributed file storage for your “enterprise” application? Look no further, MogileFS is here.

MogileFS-Client has compatibility issues with JRuby due to it’s use of the low level Socket class. JRuby 1.5-dev does not yet support all the Socket methods, so here is a monkey patch to get the ruby mogilefs client working on JRuby. Yes it blocks, but who cares JRuby has native threads.

This is exactly why I love Ruby; monkey patching.

class Socket
  def self.mogilefs_new(host,port,timeout=5.0)
    TCPSocket.open(host,port,timeout)
  end
end
class TCPSocket
  attr_accessor :mogilefs_addr, :mogilefs_connected, :mogilefs_size, :mogilefs_tcp_cork
  def self.open(host,port,timeout = 5.0)
    super(host,port.to_i)
  end
  def readable?
    true
  end
  def write_nonblock(data)
    write(data)
  end
  def recv_nonblock(size,arg)
    recv(size,arg)
  end
  def mogilefs_init(host = nil, port = nil)
    true
  end
end

Here is an example test case on how to get it all to work.

require 'rubygems'
require 'mogilefs'

# jmogilefs.rb is the monkey patch above 
# load it after loading mogilefs client.
require 'jmogilefs.rb'

mg = MogileFS::MogileFS.new(:domain=>'testserv',:hosts=>['xxx.xxx.xxx.xxx:6001'])

p mg.get_file_data 'video:100:default.jpg'

p mg.get_paths 'video:100:default.jpg',true

mg.list_keys('video:100')[0].each do |f|
 p f
end

Letsgetdugg