minor refactoring
minor refactoring

ngkim/cloudify-recipes,CloudifySource/cloudify-recipes,ngkim/cloudify-recipes,CloudifySource/cloudify-recipes,ngkim/cloudify-recipes,ngkim/cloudify-recipes,CloudifySource/cloudify-recipes,CloudifySource/cloudify-recipes,ngkim/cloudify-recipes,ngkim/cloudify-recipes,ngkim/cloudify-recipes,CloudifySource/cloudify-recipes,CloudifySource/cloudify-recipes