fluke/devops-service/db/mongo/models/stack/stack_factory.rb

require_relative "stack_base"
require_relative "stack_openstack"
require_relative "stack_ec2"

module Devops
  module Model
    class StackFactory

      def self.create(provider, attrs)
        get_class(provider).create(attrs)
      end

      def self.build_from_bson(provider, attrs)
        get_class(provider).build_from_bson(attrs)
      end

      def self.get_class(provider)
        case provider
          when ::Provider::Openstack::PROVIDER
            StackOpenstack
          when ::Provider::Ec2::PROVIDER
            StackEc2
          else
            raise InvalidRecord.new "Invalid provider: '#{provider}'"
        end
      end

    end
  end
end