class Nifty::Event::Converter
Converts appliances into events
@author Michal Kimle
Public Class Methods
convert_appliance(appliance, backend, transfer_method, parameters)
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Converts appliance into event
@param [Cloud::Appliance::Descriptor::Appliance] appliance @param [Nifty::Backend] backend @param [Nifty::TransferMethod] transfer_method @param [Hash] parameters @raise [Nifty::Errors::Event::ConverterError] when something goes wrong while conversion @return [Nifty::Event] description of returned object
# File lib/nifty/event/converter.rb, line 13 def self.convert_appliance(appliance, backend, transfer_method, parameters) events_module = "Nifty::Events::#{backend.name.demodulize}".constantize logger.debug "Converting appliance #{appliance.inspect}" event_type = "#{appliance.action}_event".camelize fail Nifty::Errors::Event::ConverterError, "No such event type for action #{appliance.action.inspect}" unless events_module.constants.include?(event_type.to_sym) event_class = events_module.const_get(event_type) fail Nifty::Errors::Event::ConverterError, "Class #{event_class.inspect} doesn't represent an event" unless (event_class.respond_to?('event?') && event_class.event? && event_class.public_instance_methods.include?(:run)) event = backend.create_event(event_class, appliance, transfer_method, parameters) logger.debug "Converted event: #{event.inspect}" event end