Module: Nutella::App

Defined in:
lib/nutella_lib/app_log.rb,
lib/nutella_lib/app_net.rb,
lib/nutella_lib/app_core.rb,
lib/nutella_lib/app_persist.rb

Defined Under Namespace

Modules: Log, Net, Persist

Class Method Summary collapse

Class Method Details

.app_runs_list ⇒ Object 



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# File 'lib/nutella_lib/app_core.rb', line 24

def self.app_runs_list
  raise 'Nutella has not been initialized: you need to call the proper init method before you can start using nutella' if @app_runs_list.nil?
  @app_runs_list
end

.app_runs_list=(val) ⇒ Object

Setter/getter for runs_list



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# File 'lib/nutella_lib/app_core.rb', line 23

def self.app_runs_list=(val) @app_runs_list=val; end

.extract_component_id ⇒ String

Extracts the component name from the folder where the code for this component is located



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# File 'lib/nutella_lib/app_core.rb', line 50

def self.extract_component_id
  Nutella.extract_component_id
end

.init(broker_hostname, app_id, component_id) ⇒ Object

Initializes this component as an application component



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# File 'lib/nutella_lib/app_core.rb', line 8

def self.init( broker_hostname, app_id, component_id )
  Nutella.app_id = app_id
  Nutella.run_id = nil
  Nutella.component_id = component_id
  Nutella.resource_id = nil
  Nutella.mongo_host = broker_hostname
  Nutella.mqtt = SimpleMQTTClient.new broker_hostname
  # Start pinging
  Nutella.net.start_pinging
  # Fetch the `run_id`s list for this application and subscribe to its updates
  net.async_request('app_runs_list', lambda { |res| Nutella.app.app_runs_list = res })
  self.net.subscribe('app_runs_list', lambda {|message, _| Nutella.app.app_runs_list = message })
end

.log ⇒ Object 



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# File 'lib/nutella_lib/app_core.rb', line 31

def self.log; Nutella::App::Log; end

.net ⇒ Object

Accessors for sub-modules



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# File 'lib/nutella_lib/app_core.rb', line 30

def self.net; Nutella::App::Net; end

.parse_args(args) ⇒ String

Parse command line arguments for app level components



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# File 'lib/nutella_lib/app_core.rb', line 39

def self.parse_args(args)
  if args.length < 2
    STDERR.puts 'Couldn\'t read broker address and app_id from the command line, impossible to initialize component!'
    return
  end
  return args[0], args[1]
end

.persist ⇒ Object 



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# File 'lib/nutella_lib/app_core.rb', line 32

def self.persist; Nutella::App::Persist; end

.set_resource_id(resource_id) ⇒ Object

Sets the resource id



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# File 'lib/nutella_lib/app_core.rb', line 57

def self.set_resource_id( resource_id )
  Nutella.set_resource_id resource_id
end