23 May 2013

The Ruby Reflector

Topic

Client

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Sponsored Post: OLO, Amazon, Zoosk, aiCache, Teradata Aster, Aerospike, Percona, ScaleOut, New Relic, Logic Monitor, AppDynamics

By Todd Hoff of High Scalability 3 months ago.
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…and like it? Then join us as a Senior Distributed Systems Engineer or Client / Application Engineer. People covent your bag of tricks for troubleshooting systems and network issues? Join our Operations and QA team. See if these positions are a fit for you!

Fun and Informative Events

It's back! Join the MySQL Community at the annual Percona Live MySQL Conference and Expo in Santa Clara , April 22-25. This year's conference features an …

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Misleading Title About Queueing

By John Nunemaker of RailsTips by John Nunemaker 1 year ago.
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…processor look something like this: class KestrelTrackService def initialize(client, queue) @ client = client @ queue = queue end

def record(attrs) @client.set(@queue, MessagePack.pack(attrs)) end end

class KestrelTrackProcessor def initialize(client, queue) @ client = client @ queue = queue end

def run loop { process } end

def process record @client.get(@queue) end

def record(data) Hit.record(MessagePack.unpack(data)) end end

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An Opscode year in review

By Bryan McLellan of Opscode Blog over 1 year ago.
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…users of Chef this year, which also included our release of an Chef Client Installer for Windows . There are members of the community already deploying this installer using group policy and teaming it with Windows Deployment Services ( WDS) to enable bootstrapping bare-metal into fully functional servers. This pattern prevents traditional dusty and broken build documents for meat-cloud built servers as well as golden-images with an uncertain past.

Opscode Hosted Chef experienced …

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setting up ec2 minecraft server

By Sarah of the evolving ultrasaurus over 1 year ago.
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…1.6.0 26-b03)

Java HotSpot(TM) Client VM (build 20.1-b02, mixed mode, sharing)

See this tutorial for setting up minecraft , but if you are playing with the Minecraft 1.0 client (at least of today) you'll need to install a dev build which you can find on the ci server . I found that I needed to run the server, stop it and run it again. Now it seems to work fine.

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Building Structured API Clients with API Smith

By Darcy Laycock of Engine Yard Developer Blog almost 2 years ago.
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Step 2. Writing the HTTP Client The next step is to write a HTTP client by using the APISmith::Client mixin. Much like the normal HTTParty mixin, this gives us handy methods on the class like get and post , but in the case of API Smith we're also given the option to configure endpoints (separate from the base_uri ), a fairly simple hierarchical way of declaring query and body parameters as well as specifying request options for HTTParty.

Secondly, it also adds tools …

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Chef 0.9.16 Released!

By Dan DeLeo of Opscode Blog 2 years ago.
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Updated the retry logic in our HTTP Client to use an exponential

backoff for 50x responses

Set a custom User Agent string in the HTTP Client.

Sending SIGQUIT to Chef Client will now cause Chef to log a stack

trace.

chef-solr-indexer now properly XML escapes keys in nested Hashes.

Invalid cache files will be deleted automatically instead of causing

an error.

knife ssh can connect to an arbitrary TCP port.

The CentOS Bootstrap Scripts now install rubygems 1.3.7 …

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When inheritance and mixins become a design issue

By Guilherme Silveira of CaelumObject Developers' Blog 2 years ago.
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…controller to log in a client: class ClientsController < ApplicationController def create @ client = Client.find(params[:client]) session[:current_user] = @ client flash[:message] = "Client logged in unit!" redirect_to client_home_path(@client) end end

Some of those methods could be extracted to ApplicationController, with the same lack of cohesion (those methods would be inherited).

Instead of having the responsibility to deal with parameters, let's …

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Ruby I/O Performance - what, where and when

By Luis Lavena of Engine Yard Developer Blog over 2 years ago.
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…(ruby 1.8.7 patchlevel 249) ( 2010-12-03 9cf97c3) ( Java HotSpot(TM) Client VM 1.6.0_18) [x86-java]

jruby 1.6.0.RC1 (ruby 1.8.7 patchlevel 330) ( 2011-01-10 769f847) ( Java HotSpot(TM) Client VM 1.6.0 18) [ Windows 7-x86-java] Ubuntu 10.04 ( VirtualBox) ( RVM with GCC 4.4.3-4ubuntu5) :

ruby 1.8.7 (2010-08-16 patchlevel 302) [i686-linux]

ruby 1.9.2p0 (2010-08-18 revision 29036) [i686-linux]

ruby 1.9.3dev (2010-12-13 trunk 30194) [i686-linux] Using sudoku-solver.rb …

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Rails Best Practices 2: Move logic to model

By Claudio of DevInterface Blog almost 3 years ago.
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@ client = Client. new ( params [ :client ] )

@ client . street = params [ :address ] . split ( ' ' , 2 ) . first

@ client . city = params [ :address ] . split ( ' ' , 2 ) . last

@ client . save

end

...

end

We can now improve this method by defining the address field as a virtual attribute of the Client model.

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class Client < ActiveRecord::Base

def address

[ street, city ] . join ( ' …

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Living on the edge of the WebSocket protocol

By makoto of Bamboo Blog almost 3 years ago.
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From Client to Server

Old GET /demo HTTP/1.1 Upgrade: WebSocket Connection: Upgrade Host: example.com Origin: http://example.com WebSocket-Protocol: sample

New GET /demo HTTP/1.1 Host: example.com Connection: Upgrade Sec-WebSocket-Key2: 12998 5 Y3 1 .P00 Sec-WebSocket-Protocol: sample Upgrade: WebSocket Sec-WebSocket-Key1: 4 @1 46546xW%0l 1 5 Origin: http://example.com

^n:ds[4U

Here are the list of changes.

Name(" Web Socket" => " WebSocket…

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