Module: LVM::Wrapper::Reporting

Includes:
Constants
Included in:
LVS, LVSSEG, PVS, PVSSEG, VGS
Defined in:
lib/lvm/wrapper.rb,
lib/lvm/wrapper/constants.rb

Defined Under Namespace

Modules: Constants

Constant Summary

Constants included from Constants

Constants::BASE_ARGUMENTS, Constants::EMPTY, Constants::SEPERATOR

Class Method Summary collapse

Class Method Details

.build_command(expected_attributes, base, additional_arguments = []) ⇒ Object 



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# File 'lib/lvm/wrapper.rb', line 41

def build_command(expected_attributes, base, additional_arguments = [])
  opts = []
  expected_attributes.each do |a|
    opts << a[:column]
  end

  additional_arguments = [] if additional_arguments.nil?
  additional_arguments = [additional_arguments] if additional_arguments.is_a?(String)

  return base % opts.join(",") + "#{additional_arguments.empty? ? '' : ' '}#{additional_arguments.join(' ')}"
end

.process_line(expected_attributes, line) ⇒ Object

Breakdown return values into attribute => value hash suitable for OpenStruct



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# File 'lib/lvm/wrapper.rb', line 12

def process_line(expected_attributes, line) #:nodoc:
  line.strip!
  values = line.split(SEPERATOR)
  # nil is easier
  values.map! { |v| (v.empty?) ? nil : v }

  attributes = {}
  # values and expected attributes are in the same order
  values.size.times do |i|
    value = values[i]
    attribute = expected_attributes[i]

    name = attribute[:method].to_sym

    # use hints for type conversion
    case attribute[:type_hint]
    when "String"
    when "Integer"
      value = value.to_i
    when "Float"
      value = value.to_f
    end
    attributes[name] = value
  end

  return attributes
end