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