# File lib/chef/file_access_control.rb, line 71
    def target_uid
      return nil if resource.owner.nil?
      if resource.owner.kind_of?(String)
        dimished_radix_complement( Etc.getpwnam(resource.owner).uid )
      elsif resource.owner.kind_of?(Integer)
        resource.owner
      else
        Chef::Log.error("The `owner` parameter of the #@resource resource is set to an invalid value (#{resource.owner.inspect})")
        raise ArgumentError, "cannot resolve #{resource.owner.inspect} to uid, owner must be a string or integer"
      end
    rescue ArgumentError
      raise Chef::Exceptions::UserIDNotFound, "cannot determine user id for '#{resource.owner}', does the user exist on this system?"
    end