Module: AutomateEm

Defined in:
lib/automate-em/core/communicator.rb,
lib/automate-em.rb,
lib/automate-em/engine.rb,
lib/automate-em/status.rb,
lib/automate-em/version.rb,
lib/automate-em/constants.rb,
lib/automate-em/utilities.rb,
lib/automate-em/core/system.rb,
lib/automate-em/logic/logic.rb,
lib/automate-em/module_core.rb,
lib/automate-em/core/modules.rb,
lib/automate-em/device/device.rb,
lib/automate-em/service/service.rb,
lib/automate-em/interfaces/html5.rb,
lib/automate-em/core/resolver_pool.rb,
lib/automate-em/device/tcp_control.rb,
lib/automate-em/service/http_service.rb,
lib/automate-em/device/datagram_server.rb,
lib/automate-em/device/device_connection.rb

Overview

This contains the basic constructs required for serialised comms over TCP and UDP

Defined Under Namespace

Modules: Constants, DatagramServer, DeviceConnection, ModuleCore, Status, Utilities Classes: Communicator, DatagramBase, Device, DeviceModule, Engine, HttpService, JobProxy, Logic, LogicModule, Modules, ResolverJob, ResolverPool, ScheduleProxy, Service, ServiceModule, System

Constant Summary collapse

VERSION = 
"0.0.4"

Class Method Summary collapse

Class Method Details

.boot ⇒ Object 



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# File 'lib/automate-em.rb', line 91

def self.boot
	
	#
	# System level logger
	#
	if Rails.env.production?
		System.logger = Logger.new(Rails.root.join('log/system.log').to_s, 10, 4194304)
	else
		System.logger = Logger.new(STDOUT)
	end
	System.logger.formatter = proc { |severity, datetime, progname, msg|
		"#{datetime.strftime("%d/%m/%Y @ %I:%M%p")} #{severity}: #{System} - #{msg}\n"
	}
	
	@@resolver = ResolverPool.new
	
	EventMachine.run do
		#
		# Enable the scheduling system
		#
		@@scheduler = Rufus::Scheduler.start_new
		
		EM.defer do
			System.logger.debug "Started with #{EM.get_max_timers} timers avaliable"
			System.logger.debug "Started with #{EM.threadpool_size} threads in pool"
		end
		
		#
		# Start the UDP server
		#
		EM.open_datagram_socket "0.0.0.0", Rails.configuration.automate.datagram_port, DatagramServer
		
		#
		# Load the system based on the database
		#
		ControlSystem.update_all(:active => false)
		ControlSystem.find_each do |controller|
			EM.defer do
				begin
					System.logger.debug "Booting #{controller.name}"
					result = System.start(controller, Rails.configuration.automate.log_level)
					if result == false
						#
						# TODO:: we need a class for handling failed starts
						#
						AutomateEm.print_error(AutomateEm::System.logger, e, {
							:message => "System #{controller.name} failed to start (gracefully). It is now offline",
							:level => Logger::WARN
						})
						controller.active = false
						controller.save
						@@scheduler.in '5m' do
							System.start(controller, Rails.configuration.automate.log_level)
						end
					end
				rescue => e
					AutomateEm.print_error(AutomateEm::System.logger, e, {
						:message => "System #{controller.name} threw an error whilst starting. It is now offline",
						:level => Logger::WARN
					})
					#
					# Mark as offline, do not retry and email
					#
					begin
						controller.active = false
						controller.save
						#
						# TODO:: email admin about failure
						#
					rescue => e
						AutomateEm.print_error(AutomateEm::System.logger, e, {
							:message => "Error marking system as offline",
							:level => Logger::ERROR
						})
					end
				end
			end
		end
		
		#
		# Emit connection counts for logging
		#
		@@scheduler.every '10m' do
			System.logger.info "There are #{EM.connection_count} connections to this server"
		end
		
		#
		# We should AutoLoad the interfaces as plugins rather than having them in the core
		#
		EM.add_timer(20) do
			System.start_websockets
		end
	end
end

.get_log_level(level) ⇒ Object 



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# File 'lib/automate-em.rb', line 73

def self.get_log_level(level)
	if level.nil?
		return Logger::INFO
	else
		return case level.downcase.to_sym
			when :debug
				Logger::DEBUG
			when :warn
				Logger::WARN
			when :error
				Logger::ERROR
			else
				Logger::INFO
		end
	end
end

.load_paths=(paths) ⇒ Object 



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# File 'lib/automate-em.rb', line 58

def self.load_paths= (paths)
	@@load_paths = ([] << paths) # TODO:: this doesn't work
end

.print_error(logger, e, options = {}) ⇒ Object 



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# File 'lib/automate-em/utilities.rb', line 4

def self.print_error(logger, e, options = {})

	begin
		level = options[:level] || Logger::INFO
		logger.add(level) do
			message = options[:message].nil? ? "" : "%p" % options[:message]
			message += "\n#{e.message}"
			e.backtrace.each {|line| message += "\n#{line}"}
			message
		end
	rescue
	end

end

.resolver ⇒ Object 



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# File 'lib/automate-em.rb', line 68

def self.resolver
	@@resolver
end

.scheduler ⇒ Object 



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# File 'lib/automate-em.rb', line 63

def self.scheduler
	@@scheduler
end