Class: Zas::Service

Inherits:
Object
  • Object
show all
Defined in:
lib/zas/service.rb

Overview

Public: Authentication service class. Construct a new instance of this class and call the instance method #run to start it.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config = ServiceConfiguration.new) ⇒ Service

Public: Initialize the service. The service will not be running yet. Invoke the #run method on the service instantce to run the service.

config - Configuration spec for the service.



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# File 'lib/zas/service.rb', line 29

def initialize(config=ServiceConfiguration.new)
  self.host = config.host
  self.port = config.port
  self.context = ZMQ::Context.new
  self.logger = Syslogger.new(config.name, Syslog::LOG_PID, Syslog::LOG_LOCAL0)
end

Instance Attribute Details

#logger ⇒ Object

Public: A syslog logger



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# File 'lib/zas/service.rb', line 16

def logger
  @logger
end

Instance Method Details

#authenticators ⇒ Object

Public: A collection authenticators mapped to keys.

Returns a Hash of authenticators.



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# File 'lib/zas/service.rb', line 21

def authenticators 
  @authenticators ||= {}
end

#run ⇒ Object

Public: Run the service. This method will block while awaiting incoming requests. The service may be stopped by sending the INT signal.



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# File 'lib/zas/service.rb', line 38

def run
  socket = context.socket ZMQ::REP
  socket.bind "tcp://#{host}:#{port}"

  trap("INT") { socket.close }

  begin
    while req = socket.recv
      socket.send(encode(authenticate(req)))
    end
  rescue ZMQ::Error => e
    logger.error "Shutting down: #{e.message}" 
    e
  end      
end

#shutdown ⇒ Object

Shutdown the service cleanly (closes the 0mq context)



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# File 'lib/zas/service.rb', line 55

def shutdown
  context.close if context
end