Contents

require 'cloud-appliance-descriptor'
require 'json-schema'

# Takes care of loading appliance descriptors
#
# @author Michal Kimle
class Nifty::Event::Loader
  # Loads appliance from the file
  #
  # @param [String] filename
  # @raise [Nifty::Errors::Event::LoaderError] when appliance descriptor is invalid
  # @return [Cloud::Appliance::Descriptor::Appliance] loaded appliance
  def self.load_appliance(filename)
    logger.debug "Loading appliance from file #{filename.inspect}..."
    fail Nifty::Errors::Event::LoaderError, "Descriptor file #{filename.inspect} is not readable" unless File.readable?(filename)

    JSON::Validator.validate!(Nifty::APPLIANCE_SCHEMA, filename)

    file = File.read(filename)
    appliance = Cloud::Appliance::Descriptor::Appliance.from_json(file)
    logger.debug "Loaded appliance: #{appliance.inspect}"

    appliance
  rescue JSON::Schema::ValidationError => ex
    fail Nifty::Errors::Event::LoaderError, ex
  end
end

Version data entries

11 entries across 11 versions & 1 rubygems

Version	Path
nifty-0.2.12	lib/nifty/event/loader.rb
nifty-0.2.11	lib/nifty/event/loader.rb
nifty-0.2.10	lib/nifty/event/loader.rb
nifty-0.2.9	lib/nifty/event/loader.rb
nifty-0.2.8	lib/nifty/event/loader.rb
nifty-0.2.7	lib/nifty/event/loader.rb
nifty-0.2.6	lib/nifty/event/loader.rb
nifty-0.2.5	lib/nifty/event/loader.rb
nifty-0.2.4	lib/nifty/event/loader.rb
nifty-0.2.3	lib/nifty/event/loader.rb
nifty-0.2.2	lib/nifty/event/loader.rb