Class: Neutron::Controller

Inherits:
UNIXServer
  • Object
show all
Defined in:
lib/neutron/controller.rb

Constant Summary collapse

PARSE_ERROR = 
-32700
INVALID_REQUEST = 
-32600
METHOD_NOT_FOUND = 
-32601
INTERNAL_ERROR = 
-32603
SERVER_ERROR = 
-32000

Instance Method Summary collapse

Constructor Details

#initialize(path = '/tmp/neutron.sock') ⇒ Controller

Returns a new instance of Controller.



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# File 'lib/neutron/controller.rb', line 10

def initialize(path = '/tmp/neutron.sock')
  File.delete(path) if File.exists?(path)

  super(path)
  @path = path
  @run = true

  trap('INT') do
    STDOUT.puts 'Closing socket...'
    self.stop
  end
end

Instance Method Details

#notify(event, result = nil) ⇒ Object 



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# File 'lib/neutron/controller.rb', line 54

def notify(event, result = nil)
  if result.is_a?(Hash) && result[:error].is_a?(Hash)
    result[:error][:code] ||= SERVER_ERROR
    result[:error][:message] ||= 'Server error'
    response = {jsonrpc: '2.0', error: result[:error], event: event, id: -1}
  else
    response = {jsonrpc: '2.0', result: result, event: event, id: -1}
  end
  sock = Thread.current[:sock]
  if sock
    send_string(sock, response.to_json + "\n")
  end
end

#run ⇒ Object 



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# File 'lib/neutron/controller.rb', line 29

def run
  while @run do
    begin
      Thread.fork(self.accept) do |sock| # begin
        Thread.current[:threads] = {}
        while (data = sock.gets)
          break if data.empty?
          data.chop!
          # STDOUT.puts data
          Thread.fork(sock, data, Thread.current[:threads]) do |sock, data, threads|
            Thread.current[:sock] = sock
            Thread.current[:threads] = threads
            response = dispatch(data)
            if response
              send_string(sock, response.to_json + "\n")
            end
          end
        end
      end
    rescue Errno::EBADF
      # socket has been closed and server is waiting on socket.accept
    end
  end
end

#stop ⇒ Object 



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# File 'lib/neutron/controller.rb', line 23

def stop
  @run = false
  self.close
  File.delete(@path) if File.exists?(@path)
end