Class: Cube::Evaluator

Inherits:
Object
  • Object
show all
Defined in:
lib/cube-evaluator.rb,
lib/cube-evaluator/version.rb

Constant Summary collapse

VERSION = 
"0.0.1"

Instance Method Summary collapse

Constructor Details

#initialize(host = 'localhost', port = 1081) ⇒ Evaluator

Returns a new instance of Evaluator.



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# File 'lib/cube-evaluator.rb', line 6

def initialize(host = 'localhost', port = 1081)
  @url = "http://#{host}:#{port}/"
end

Instance Method Details

#metric(options = {}) ⇒ Object 



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# File 'lib/cube-evaluator.rb', line 14

def metric(options = {})
  uri = URI(@url) + "1.0/metric/get"

  params = options.merge(options) do |k,v|
    if [DateTime, Date, Time].any?{ |klass| v.is_a?(klass) }
      v.to_time.utc.iso8601
    elsif k == :step
      to_step(v)
    else
      v
    end
  end

  uri.query = URI.encode_www_form(params)
  res = Net::HTTP.get_response(uri)
  json_res = JSON.parse(res.body)

  json_res = json_res.map do |metric|
    metric.merge(metric) { |k, v| k == 'time' ? Time.parse(v) : v  }  
  end

  result = { :times => [], :values => [] }

  json_res.each do |metric|
    metric.each do |k,v|
      if k == 'time'
        result[:times] << v
      elsif k == 'value'
        result[:values] << v
      end
    end
  end

  result
end

#url ⇒ Object 



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# File 'lib/cube-evaluator.rb', line 10

def url
  @url || ""
end