Class: FFWD::UDP::Connect

Inherits:
Object
  • Object
show all
Includes:
Reporter
Defined in:
lib/ffwd/protocol/udp/connect.rb

Constant Summary collapse

RESOLVE_TIMEOUT = 
10

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Reporter

build_meta, included, #increment, map_meta, #report!, #reporter_data

Constructor Details

#initialize(core, log, host, port, handler, config) ⇒ Connect

Returns a new instance of Connect.



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# File 'lib/ffwd/protocol/udp/connect.rb', line 40

def initialize core, log, host, port, handler, config
  @log = log
  @host = host
  @port = port
  @handler = handler

  ignored = config[:ignored]

  @bind_host = "0.0.0.0"
  @host_ip = nil
  @c = nil
  @peer = "#{host}:#{port}"
  @reporter_meta = {:component => @handler.plugin_type, :peer => @peer}

  info = "udp://#{@peer}"

  @subs = []

  r = FFWD.retry :timeout => RESOLVE_TIMEOUT do |a|
    unless @host_ip
      @host_ip = resolve_ip @host
      raise "Could not resolve: #{@host}" if @host_ip.nil?
    end

    @c = EM.open_datagram_socket @bind_host, nil, @handler, self, config

    unless ignored.include? :events
      @subs << core.output.event_subscribe{|e| handle_event e}
    end

    unless ignored.include? :metrics
      @subs << core.output.metric_subscribe{|m| handle_metric m}
    end

    log.info "Connect to #{info} (attempt #{a})"
    log.info "  config: #{config.inspect}"
  end

  r.error do |a, t, e|
    log.warning "Connect to #{info} failed, retry ##{a} in #{t}s: #{e}"
  end

  r.depend_on core

  core.stopping do
    if @c
      @c.close
      @c = nil
    end

    @subs.each(&:unsubscribe).clear
  end
end

Instance Attribute Details

#config ⇒ Object (readonly)

Returns the value of attribute config.



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# File 'lib/ffwd/protocol/udp/connect.rb', line 30

def config
  @config
end

#log ⇒ Object (readonly)

Returns the value of attribute log.



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# File 'lib/ffwd/protocol/udp/connect.rb', line 30

def log
  @log
end

#reporter_meta ⇒ Object (readonly)

Returns the value of attribute reporter_meta.



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# File 'lib/ffwd/protocol/udp/connect.rb', line 30

def reporter_meta
  @reporter_meta
end

Class Method Details

.prepare(config) ⇒ Object 



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# File 'lib/ffwd/protocol/udp/connect.rb', line 25

def self.prepare config
  config[:ignored] = (config[:ignored] || []).map{|v| Utils.check_ignored v}
  config
end

Instance Method Details

#connection_completed ⇒ Object 



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# File 'lib/ffwd/protocol/udp/connect.rb', line 100

def connection_completed; end

#send_data(data) ⇒ Object 



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# File 'lib/ffwd/protocol/udp/connect.rb', line 94

def send_data data
  return unless @c
  @c.send_datagram data, @host_ip, @port
end

#unbind ⇒ Object 



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# File 'lib/ffwd/protocol/udp/connect.rb', line 99

def unbind; end