json-schema-tests.rb

#!/usr/bin/env ruby

require 'uri'
require 'yajl'
require 'json'
require 'json-schema'
require 'net/http'
require 'digest/sha1'

s3_data_transfer_schema = {
	"type" => "object",
	"required" => ["vers","config"],
	"properties" => {
  		"vers"   => { "type" => "number" },
  		"config" => {
  			"type"     => "object",
  			"required" => ["currencies","rate","regions"],
  			"properties" => {
      			"currencies" => { "type" => "array", "items" => { "type" => "string" } },
  				"rate" => { "type" => "string" },
  				"regions" => { 
  					"type" => "array",
  					"items" => {
  						"type" => "object",
  						"properties" => {
  							"region" =>  { "type" => "string" },
  							"types"  =>  { 
  								"type" => "array", "items" => { 
  									"type" => "object",
  									"properties" => {
  										"region" => { "type" => "string" }
  									}
  								}	 
  							}
  						}

  					}
  				}
    		}
		}  		
  	}
}

pricing_json = {
	:s3 => {
		:storage        => { 
				:url    => 'http://aws.amazon.com/s3/pricing/pricing-storage.json',
				:schema => nil,
				:title  => 'S3 Storage'
		},
		:data_transfer  => {
				:url    => 'http://aws.amazon.com/s3/pricing/pricing-data-transfer.json',
				:schema => nil,
				:title  => 'S3 Data Transfer'
		},
		:requests       => {
				:url    => 'http://aws.amazon.com/s3/pricing/pricing-requests.json',
				:schema => nil,
				:title  => 'S3 Requests'
		}
	},
	:ec2 => {		
	},
	:rds => {		
	}
}




pricing_values = {}

pricing_json.each_with_object(pricing_values) do |service,rv|
	service_sym      = service[0]
	service_sections = service[1]

	rv[service_sym] ||= {}

	service_sections.each do |sect|
		section_sym     = sect[0] 
		section_url     = sect[1][:url]
		section_schema  = sect[1][:schema]

		request_content = Net::HTTP.get(URI.parse(section_url))

		rv[service_sym][section_sym] = {
			:sha1 => Digest::SHA1.hexdigest(request_content),
			:json => JSON.parse(request_content),
			:length => request_content.length
		}
	end	
end

valid = JSON::Validator.validate(s3_data_transfer_schema, pricing_values[:s3][:data_transfer][:json])

puts "#{ pricing_json[:s3][:data_transfer][:title] } JSON"
puts "\t-content length: #{ pricing_values[:s3][:data_transfer][:length] }"
puts "\t-         SHA-1: #{ pricing_values[:s3][:data_transfer][:sha1] }"
puts "\t- version value: #{ pricing_values[:s3][:data_transfer][:json]['vers'] }"
puts "\t- schema valid?: #{ valid }"
puts ""

###################################################################
# Output 
###################################################################
#
# S3 Data Transfer JSON
# 	-content length: 26543
# 	-         SHA-1: fea25c963bebaa229636f4edc57a2b716a074249
# 	- version value: 0.01
# 	- schema valid?: true
#
# [Finished in 0.3s]