Class: Volt::MessageBus::ServerTracker

Inherits:
Object
  • Object
show all
Defined in:
lib/volt/server/message_bus/peer_to_peer/server_tracker.rb

Constant Summary collapse

UPDATE_INTERVAL = 
10

Instance Method Summary collapse

Constructor Details

#initialize(volt_app, server_id, port) ⇒ ServerTracker

Returns a new instance of ServerTracker.



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# File 'lib/volt/server/message_bus/peer_to_peer/server_tracker.rb', line 11

def initialize(volt_app, server_id, port)
  @volt_app = volt_app
  @server_id = server_id
  @port = port

  @main_thread = Thread.new do
    # Continually update the database letting the server know the server
    # is active.
    loop do
      begin
        register
      rescue Exception => e
        puts "MessageBus Register Error: #{e.inspect}"
      end
      sleep UPDATE_INTERVAL
    end
  end
end

Instance Method Details

#local_ips ⇒ Object 



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# File 'lib/volt/server/message_bus/peer_to_peer/server_tracker.rb', line 48

def local_ips
  addr_infos = Socket.ip_address_list

  ips = addr_infos.select do |addr|
    addr.pfamily == Socket::PF_INET
  end.map(&:ip_address)
end

#register ⇒ Object

Register this server as active with the database



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# File 'lib/volt/server/message_bus/peer_to_peer/server_tracker.rb', line 35

def register
  instances = @volt_app.store.active_volt_instances
  instances.where(server_id: @server_id).first.then do |item|
    ips = local_ips.join(',')
    time = Time.now.to_i
    if item
      item.assign_attributes(ips: ips, time: time, port: @port)
    else
      instances << {server_id: @server_id, ips: ips, port: @port, time: time}
    end
  end
end

#stop ⇒ Object 



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# File 'lib/volt/server/message_bus/peer_to_peer/server_tracker.rb', line 30

def stop
  @main_thread.kill
end