Class: Distem::Resource::Bandwidth

Inherits:

VIface::VTraffic::Property

• Object
• VIface::VTraffic::Property
• Distem::Resource::Bandwidth

show all

Defined in:

lib/distem/resource/bandwidth.rb

Overview

Instance Attribute Summary (collapse)

• - (Object) rate readonly

  The rate (String at 'tc' form such as “10mbps”).

Class Method Summary (collapse)

• + (Object) is_valid(rate)
• + (Object) to_bytes(rate)

  converts rate to integer number of bytes returns nil if ArgumentError if the rate cannot be parsed.

Instance Method Summary (collapse)

• - (Bandwidth) initialize(paramshash = {}) constructor

  Create a new Bandwidth ==== Attributes * paramshash The Hash of the parameters to set (in the form “paramname” => value).

• - (Object) parse_params(paramshash)

  Parameters parsing method.

• - (Object) to_bytes

Methods inherited from VIface::VTraffic::Property

#to_s

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# File 'lib/distem/resource/bandwidth.rb', line 14

def initialize(paramshash={})
  super()
  @rate = nil
  parse_params(paramshash)
end

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# File 'lib/distem/resource/bandwidth.rb', line 8

def rate
  @rate
end

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# File 'lib/distem/resource/bandwidth.rb', line 49

def self.is_valid(rate)
    begin
      self.to_bytes(rate)
      return true
    rescue ArgumentError
      return false
    end
end

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# File 'lib/distem/resource/bandwidth.rb', line 28

def self.to_bytes(rate)
  return nil if rate.nil?
  m = /^(\d+)(\w*)$/.match(rate)
  raise ArgumentError if m.nil?
  digits, units = m.captures
  mult = case units
    when 'kbps' then 1024 # kilobytes
    when 'mbps' then (1024**2) # megabytes
    when 'kbit' then (1024 / 8) # kilobits
    when 'mbit' then (1024**2 / 8) # megabits
    when 'bps', '' then 1   # bytes
    else nil
  end
  raise ArgumentError if mult.nil?
  return (digits.to_i * mult)
end

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# File 'lib/distem/resource/bandwidth.rb', line 21

def parse_params(paramshash)
  super(paramshash)
  @rate = paramshash['rate'] if paramshash['rate']
end

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# File 'lib/distem/resource/bandwidth.rb', line 45

def to_bytes
  Bandwidth.to_bytes(@rate)
end