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

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

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