Method: UPnP::Device.create

Defined in:
lib/UPnP/device.rb

.create(type, friendly_name, &block) ⇒ Object

Loads a device of type type and named friendly_name, or creates a new device from block and dumps it.

If a dump exists for the same device type and friendly_name the dump is loaded and used as defaults. This preserves the device name (UUID) across device restarts.



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# File 'lib/UPnP/device.rb', line 209

def self.create(type, friendly_name, &block)
  klass = const_get type

  device_definition = File.join '~', '.UPnP', type, friendly_name
  device_definition = File.expand_path device_definition

  device = nil

  if File.exist? device_definition then
    open device_definition, 'rb' do |io|
      device = Marshal.load io.read
    end

    yield device if block_given?
  else
    device = klass.new type, friendly_name, &block
  end

  device.dump
  device
rescue NameError => e
  raise unless e.message =~ /UPnP::Service::#{type}/
  raise Error, "unknown device type #{type}"
end