Class: Ec2spec::HostResult

Inherits:
Object
  • Object
show all
Defined in:
lib/ec2spec/host_result.rb

Constant Summary collapse

MONTH_OF_DAYS = 
31
NA_VALUE = 
'N/A'
NUMBER_OF_DECIMAL_PLACES = 
3
LABEL_WITH_METHODS = 
{
  'instance_type' => :instance_type,
  'instance_id'   => :instance_id,
  'vCPU'          => :vcpu,
  'memory'        => :memory,
  'price (USD/H)' => :price_per_unit,
  'price (USD/M)' => :price_per_month,
}

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(region, host, days = nil) ⇒ HostResult

Returns a new instance of HostResult.



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# File 'lib/ec2spec/host_result.rb', line 29

def initialize(region, host, days = nil)
  @region = region
  @host = host
  @backend = nil
  @days = days || MONTH_OF_DAYS
end

Instance Attribute Details

#backend ⇒ Object

Returns the value of attribute backend.



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# File 'lib/ec2spec/host_result.rb', line 16

def backend
  @backend
end

#host ⇒ Object

Returns the value of attribute host.



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# File 'lib/ec2spec/host_result.rb', line 16

def host
  @host
end

#instance_id ⇒ Object

Returns the value of attribute instance_id.



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# File 'lib/ec2spec/host_result.rb', line 16

def instance_id
  @instance_id
end

#instance_type ⇒ Object

Returns the value of attribute instance_type.



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# File 'lib/ec2spec/host_result.rb', line 17

def instance_type
  @instance_type
end

#price_per_unit ⇒ Object 



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# File 'lib/ec2spec/host_result.rb', line 61

def price_per_unit
  @price_per_unit ||=
    Ec2spec::OfferFile.instance.price_per_unit(@instance_type)
end

#vcpu ⇒ Object 



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# File 'lib/ec2spec/host_result.rb', line 51

def vcpu
  @vcpu ||=
    Ec2spec::OfferFile.instance.vcpu(@instance_type)
end

Class Method Details

.label_with_methods ⇒ Object 



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# File 'lib/ec2spec/host_result.rb', line 20

def self.label_with_methods
  label_methods = LABEL_WITH_METHODS
  if PriceCalculator.instance.currency_values?
    label_methods['price (%s/H)'] = :price_per_currency_unit
    label_methods['price (%s/M)'] = :price_per_currency_unit_month
  end
  label_methods
end

Instance Method Details

#memory ⇒ Object 



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# File 'lib/ec2spec/host_result.rb', line 56

def memory
  @memory ||=
    Ec2spec::OfferFile.instance.memory(@instance_type)
end

#na_values ⇒ Object 



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# File 'lib/ec2spec/host_result.rb', line 36

def na_values
  @instance_type = NA_VALUE
  @instance_id = NA_VALUE
  @memory = NA_VALUE
  @vcpu = NA_VALUE
  @price_per_unit = NA_VALUE
end

#price_per_currency_unit ⇒ Object 



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# File 'lib/ec2spec/host_result.rb', line 66

def price_per_currency_unit
  return @price_per_currency_unit unless @price_per_currency_unit.nil?

  dollar_price = Ec2spec::OfferFile.instance.price_per_unit(@instance_type)
  @price_per_currency_unit = PriceCalculator
                             .instance.currency_unit_price(dollar_price)
  @price_per_currency_unit.fractional.floor(NUMBER_OF_DECIMAL_PLACES).to_f
end

#price_per_currency_unit_month ⇒ Object 



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# File 'lib/ec2spec/host_result.rb', line 80

def price_per_currency_unit_month
  return NA_VALUE if @price_per_currency_unit == NA_VALUE
  (@price_per_currency_unit * 24 * @days)
    .fractional.floor(NUMBER_OF_DECIMAL_PLACES).to_f
end

#price_per_month ⇒ Object 



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# File 'lib/ec2spec/host_result.rb', line 75

def price_per_month
  return NA_VALUE if @price_per_unit == NA_VALUE
  @price_per_unit * 24 * @days
end

#to_hash ⇒ Object 



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# File 'lib/ec2spec/host_result.rb', line 86

def to_hash
  host_values
end