fog--fog/lib/fog/vcloud_director/parsers/compute/vm.rb

module Fog
  module Parsers
    module Compute
      module VcloudDirector

        class Vm < VcloudDirectorParser

          def reset
            @in_operating_system = false
            @in_children = false
            @resource_type = nil
            @response = { :vm => { :ip_address => '' } }
            @links = []
          end

          def start_element(name, attributes)
            super
            case name
              when 'OperatingSystemSection'
                @in_operating_system = true
              when 'Vm'
                 vm_attrs = extract_attributes(attributes)
                 @response[:vm].merge!(vm_attrs.reject {|key,value| ![:href, :name, :status, :type].include?(key)})
                 @response[:vm][:id] = @response[:vm][:href].split('/').last
                 @response[:vm][:status] = human_status(@response[:vm][:status])
             when 'HostResource'
               @current_host_resource = extract_attributes(attributes)
             when 'Link'
               @links << extract_attributes(attributes)
             end
          end

          def end_element(name)
            case name
            when 'IpAddress'
              @response[:vm][:ip_address] = value
            when 'Description'
              if @in_operating_system
                @response[:vm][:operating_system] = value
                @in_operating_system = false
              end
            when 'ResourceType'
              @resource_type = value
            when 'VirtualQuantity'
              case @resource_type
              when '3'
                @response[:vm][:cpu] = value
              when '4'
                @response[:vm][:memory] = value
              end
            when 'ElementName'
              @element_name = value
            when 'Item'
              if @resource_type == '17' # disk
                @response[:vm][:disks] ||= []
                @response[:vm][:disks] << { @element_name => @current_host_resource[:capacity].to_i }
              end
            when 'Link'
              @response[:vm][:links] = @links
            end
            
          end
          
          def human_status(status)
            case status
              when '0', 0
            'creating'
              when '8', 8
            'off'
              when '4', 4
            'on'
            else
            'unknown'
            end
          end

        end

      end
    end
  end
end