Class: GeekierFactory::Action

Inherits:
Object
  • Object
show all
Defined in:
lib/geekier_factory/action.rb

Constant Summary collapse

AttributesMissing = 
Class.new(Exception)
ValidationException = 
Class.new(Exception)
Retry = 
Class.new(Exception)
ConnectionException = 
Class.new(Exception)

Instance Method Summary collapse

Constructor Details

#initialize(api, structure) ⇒ Action

Returns a new instance of Action.



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# File 'lib/geekier_factory/action.rb', line 6

def initialize(api, structure)
  @api = api
  @structure = structure
end

Instance Method Details

#api_connection ⇒ Object 



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# File 'lib/geekier_factory/action.rb', line 78

def api_connection
  @api.api_connection
end

#body_hash(param_values) ⇒ Object 



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# File 'lib/geekier_factory/action.rb', line 32

def body_hash(param_values)
  names = body_params.map{ |p| p['name'] }
  param_values.select{ |k,v| names.include?(k.to_s) }
end

#body_params ⇒ Object 



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# File 'lib/geekier_factory/action.rb', line 15

def body_params
  params.select{ |p| p['paramType'] == 'body' }
end

#build_body(param_values) ⇒ Object 



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# File 'lib/geekier_factory/action.rb', line 54

def build_body(param_values)
  body_hash(param_values)
end

#build_url(param_values) ⇒ Object 



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# File 'lib/geekier_factory/action.rb', line 42

def build_url(param_values)
  vals = path_hash(param_values)
  if (as = (path_variables - vals.keys.map(&:to_s))).any?
    raise AttributesMissing.new(as)
  end
  p = path
  vals.each do |k, v|
    p = p.sub("{#{k}}", v)
  end
  api_connection.build_url(p, url_hash(param_values))
end

#call(param_values = {}) ⇒ Object 



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# File 'lib/geekier_factory/action.rb', line 82

def call(param_values = {})
  validate_parameter_values(param_values)
  reqhash = request_hash(param_values)
  response = api_connection.run_request(reqhash[:verb], reqhash[:url], reqhash[:body], reqhash[:headers])
  handle_response!(response)
  {:request => reqhash, :response => response}
rescue Retry => e
  sleep 0.5
  retry
end

#error_responses ⇒ Object 



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# File 'lib/geekier_factory/action.rb', line 133

def error_responses
  (@structure['errorResponses'] || []) + @api.error_responses
end

#handle_response!(response) ⇒ Object 



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# File 'lib/geekier_factory/action.rb', line 139

def handle_response!(response)
  if error_responses.map{ |er| er['code'] }.include? response.status
    ex = error_responses.find{ |er| er['code'] == response.status }
    if ex.has_key?('retry') && (@retries ||= 0) < ex['retry'].to_i
      @retries += 1
      raise Retry.new
    else
      message = "#{ex['reason']} (HTTP status code #{ex['code']})"
      message = message + "\n\n" + response[:body] if ex['details'] && ex['details'] == 'body'
      raise ConnectionException.new(message)
    end
  elsif !response.success?
    raise ConnectionException.new
  end
end

#http_method ⇒ Object 



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# File 'lib/geekier_factory/action.rb', line 58

def http_method
  @structure['httpMethod']
end

#params ⇒ Object 



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# File 'lib/geekier_factory/action.rb', line 11

def params
  @structure['parameters']
end

#path ⇒ Object 



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# File 'lib/geekier_factory/action.rb', line 62

def path
  @structure['path'].start_with?('/') ? @structure['path'][1..-1] : @structure['path']
end

#path_hash(param_values) ⇒ Object 



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# File 'lib/geekier_factory/action.rb', line 37

def path_hash(param_values)
  names = path_params.map{ |p| p['name'] }
  param_values.select{ |k,v| names.include?(k.to_s) }
end

#path_params ⇒ Object 



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# File 'lib/geekier_factory/action.rb', line 19

def path_params
  params.select{ |p| p['paramType'] == 'path' }
end

#path_variables ⇒ Object 



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# File 'lib/geekier_factory/action.rb', line 66

def path_variables
  path.scan(/\{(\w*)\}/).flatten
end

#request_hash(param_values) ⇒ Object 



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# File 'lib/geekier_factory/action.rb', line 70

def request_hash(param_values)
  { 
    :verb => http_method.downcase.to_sym,
    :url => build_url(param_values),
    :body => build_body(param_values)
  }
end

#url_hash(param_values) ⇒ Object 



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# File 'lib/geekier_factory/action.rb', line 27

def url_hash(param_values)
  names = url_params.map{ |p| p['name'] }
  param_values.select{ |k,v| names.include?(k.to_s) }
end

#url_params ⇒ Object 



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# File 'lib/geekier_factory/action.rb', line 23

def url_params
  params.select{ |p| p['paramType'] == 'query' }
end

#validate_parameter_values(param_values) ⇒ Object 



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# File 'lib/geekier_factory/action.rb', line 93

def validate_parameter_values(param_values)
  errors = Hash.new { |hash,key|hash[key] = [] }

  param_values.each do |k,v|
    parameter = params.detect{|p| p['name'] == k.to_s}

    errors[k] << "expected to be #{parameter['dataType']} (was #{p.class})" unless case parameter['dataType']
                                                                                   when 'byte'
                                                                                     true
                                                                                   when 'string'
                                                                                     v.is_a?(String)
                                                                                   when 'boolean'
                                                                                     v.is_a?(TrueClass) ||
                                                                                     v.is_a?(FalseClass)
                                                                                   when 'int'
                                                                                     v.is_a?(Integer)
                                                                                   when 'float'
                                                                                     v.is_a?(Float)
                                                                                   when 'double'
                                                                                     v.is_a?(Double)
                                                                                   when 'Date'
                                                                                     (v.is_a?(Date) || Date.parse(v)) rescue false
                                                                                   end

    if parameter.has_key?('allowableValues')
      vals = case parameter['allowableValues']['valueType']
      when 'RANGE'
        Range.new(parameter['allowableValues']['min'].to_i, parameter['allowableValues']['max'].to_i)
      when 'LIST'
        parameter['allowableValues']['values']
      end
      errors[k] << "expected to be one of #{vals}" unless vals.include?(v)
    end
  end

  if errors.any?
    raise ValidationException.new(errors.inspect)
  end
end