Class: BugBunny::Adapter

Inherits:
Object
  • Object
show all
Defined in:
lib/bug_bunny/adapter.rb

Constant Summary collapse

PERSIST_MESSAGE = 
true
SERVICE_HEALTH_CHECK = 
:health_check
TIMEOUT = 
3
BOMBA = 
:bomba
PUBLISH_TIMEOUT = 
:publish_timeout
CONSUMER_TIMEOUT = 
:consumer_timeout
COMUNICATION_ERROR = 
:comunication_error
CONSUMER_COUNT_ZERO = 
:consumer_count_zero
PG_EXCEPTIONS_TO_EXIT = 
%w[PG::ConnectionBad PG::UnableToSend].freeze

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(attrs = {}) ⇒ Adapter

Returns a new instance of Adapter.



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# File 'lib/bug_bunny/adapter.rb', line 22

def initialize(attrs = {})
  @logger = Logger.new('./log/bug_bunny.log', 'monthly')
  @communication_response = ::BugBunny::Message.new(status: :error)
  @time_to_wait = 2
  create_adapter_with_rabbit
end

Instance Attribute Details

#communication_response ⇒ Object

Returns the value of attribute communication_response.



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# File 'lib/bug_bunny/adapter.rb', line 15

def communication_response
  @communication_response
end

#consumer ⇒ Object

Returns the value of attribute consumer.



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# File 'lib/bug_bunny/adapter.rb', line 15

def consumer
  @consumer
end

#logger ⇒ Object

Returns the value of attribute logger.



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# File 'lib/bug_bunny/adapter.rb', line 15

def logger
  @logger
end

#rabbit ⇒ Object

Returns the value of attribute rabbit.



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# File 'lib/bug_bunny/adapter.rb', line 15

def rabbit
  @rabbit
end

#service_message ⇒ Object

Returns the value of attribute service_message.



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# File 'lib/bug_bunny/adapter.rb', line 15

def service_message
  @service_message
end

#time_to_wait ⇒ Object

Returns the value of attribute time_to_wait.



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# File 'lib/bug_bunny/adapter.rb', line 15

def time_to_wait
  @time_to_wait
end

Class Method Details

.make_response(comunication_result, consume_result = nil) ⇒ Object 



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# File 'lib/bug_bunny/adapter.rb', line 269

def self.make_response(comunication_result, consume_result = nil)
  if comunication_result.success?
    consume_result || comunication_result
  else
    comunication_result.response = comunication_result.response.to_s
    comunication_result
  end
end

Instance Method Details

#build_queue(name, opts = {}) ⇒ Object 



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# File 'lib/bug_bunny/adapter.rb', line 237

def build_queue(name, opts = {})
  init = opts.key?(:initialize) ? opts[:initialize] : true
  new_queue = ::BugBunny::Queue.new(opts.merge(name: name))

  if init
    logger.debug("Building rabbit new_queue: #{name} status: #{rabbit.status} queue_options: #{new_queue.options}")

    retries = 0
    begin
      built_queue = rabbit.channel.queue(new_queue.name.to_s, new_queue.options)
    rescue StandardError
      if (retries += 1) <= 3
        sleep 0.5
        retry
      end
      raise
    end

    new_queue.rabbit_queue = built_queue
    new_queue.name = new_queue.rabbit_queue.name
  end

  new_queue
rescue Timeout::Error, StandardError => e
  logger.debug("Rabbit Identifier: #{rabbit.try(:identifier)}")
  logger.debug("Status adapter created: #{rabbit.status}")
  logger.error(e)

  close_connection!
  raise Exception::ComunicationRabbitError.new(COMUNICATION_ERROR, e.backtrace)
end

#check_pg_exception!(exception) ⇒ Object 



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# File 'lib/bug_bunny/adapter.rb', line 295

def check_pg_exception!(exception)
  # el consumidor no reconecta (rails tasks) asi que salimos a la goma
  if PG_EXCEPTIONS_TO_EXIT.any? { |msg| exception.try(:message)&.starts_with?(msg) }
    exit 7 # salimos con un int especial para identificarlo
  end
end

#close_connection! ⇒ Object 



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# File 'lib/bug_bunny/adapter.rb', line 291

def close_connection!
  rabbit.try(:close)
end

#consume!(queue, thread: false, manual_ack: true, exclusive: false, block: true, opts: {}) ⇒ Object 



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# File 'lib/bug_bunny/adapter.rb', line 66

def consume!(queue, thread: false, manual_ack: true, exclusive: false, block: true, opts: {})
  Signal.trap('INT') { exit }

  logger.debug("Suscribe consumer to: #{queue.name}")
  logger.debug("ENTRO AL CONSUMER #{rabbit.try(:identifier)}")

  self.consumer = queue.rabbit_queue.subscribe(manual_ack: manual_ack, exclusive: exclusive, block: block) do |delivery_info, metadata, json_payload|
    # Session depends on thread info, subscribe block cleans thread info
    # ::Session.init unless Session.tags_context

    begin
      payload = ActiveSupport::JSON.decode(json_payload).deep_symbolize_keys # Timezones pulenteado
    rescue StandardError
      payload = JSON.parse(json_payload).deep_symbolize_keys
    end

    # Session for Sentry logger
    # locale, version, service_name
    # payload.except(:body, :service_name).each do |k, v|
    #   Session.assign(k, v)
    # end
    # Session.from_service = payload[:service_name]
    # Session.correlation_id = metadata.correlation_id
    # Session.queue_name = queue.name

    # unless defined?(ActiveRecord) && ActiveRecord::Base.connection_pool.with_connection(&:active?)
    #   logger.error('[PG] PG connection down')
    #   exit 7
    # end

    begin
      message = ::BugBunny::Message.new(correlation_id: metadata.correlation_id, reply_to: metadata.reply_to, **payload)

      # Default sentry info
      # ::Session.request_id = message.correlation_id rescue nil
      # ::Session.tags_context.merge!(
      #   server_version: message.version,
      #   service_action: message.service_action,
      #   service_name:   message.service_name,
      #   isp_id:         (message.body&.fetch(:isp_id, nil) rescue nil)
      # )
      # ::Session.extra_context[:message] = message.body

      logger.info("#{queue.name}-Received Request: (#{message.service_action})")
      logger.debug("#{queue.name}-Received Request: (#{message})")
      logger.debug("Message will be yield")
      logger.debug("Block given?  #{block_given?}")
      yield(message) if block_given?
      logger.debug('Message processed')

      begin
        Timeout.timeout(5) do
          rabbit.channel.ack delivery_info.delivery_tag if delivery_info[:consumer].manual_acknowledgement?
        end
      rescue Timeout::Error => e
        logger.debug("Rabbit Identifier: #{rabbit.try(:identifier)} can not check manual_ack #{e.to_s}")
      rescue ::StandardError => e
        logger.debug("Rabbit Identifier: #{rabbit.try(:identifier)} can not check manual_ack #{e.to_s}")
      end

      self.service_message = message
      self.communication_response = ::BugBunny::Message.new(status: :success)
    rescue ::SystemExit => e # Ensure exit code
      raise e
    rescue => e
      logger.debug("Rabbit Identifier: #{rabbit.try(:identifier)}")
      logger.error(e)

      close_connection!

      # Session.clean!
      self.communication_response = ::BugBunny::Message.new(status: :error, body: BOMBA, exception: e)
    end

    if thread # sync consumer flag :D
      begin
        Timeout::timeout(1) do
          delivery_info[:consumer].cancel
        end
      rescue Timeout::Error => e
        close_connection!
        thread.exit
      end
      close_connection!
      thread.exit
    end
  end

  if thread
    close_connection!
    thread.exit
  else
    while true
      begin
        logger.debug("SALIO DEL CONSUMER #{rabbit.try(:identifier)}")
        logger.debug(rabbit.status)
        exit # consumer.cancel
      rescue Bunny::NotAllowedError => e
        logger.debug("NOT ALLOWED #{e.to_s}")
        break
      rescue Timeout::Error => e
        if queue.rabbit_queue.channel.status == :closed || queue.rabbit_queue.channel.connection.status == :closed
          logger.debug("Channel or connection closed")
          break
        end

        sleep time_to_wait
        logger.debug("Rabbit Identifier: #{rabbit.try(:identifier)}")
        logger.error(e)
        retry
      rescue StandardError => e
        if queue.rabbit_queue.channel.status == :closed || queue.rabbit_queue.channel.connection.status == :closed
          logger.debug("Channel or connection closed")
          break
        end

        sleep time_to_wait
        logger.debug("Rabbit Identifier: #{rabbit.try(:identifier)}")
        logger.error(e)
        retry
      end
    end
  end
rescue Timeout::Error => e
  logger.debug("Rabbit Identifier: #{rabbit.try(:identifier)}")
  logger.error(e)
  close_connection!
  ::BugBunny::Message.new(status: :error, body: CONSUMER_TIMEOUT, exception: e)
rescue StandardError => e
  logger.debug("Rabbit Identifier: #{rabbit.try(:identifier)}")
  logger.error(e)
  close_connection!
  ::BugBunny::Message.new(status: :error, body: BOMBA, exception: e)
end

#make_response ⇒ Object 



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# File 'lib/bug_bunny/adapter.rb', line 278

def make_response
  if communication_response.success?
    service_message || communication_response
  else
    communication_response.response = communication_response.response.to_s
    communication_response
  end
end

#publish!(message, publish_queue, opts = {}) ⇒ Object 



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# File 'lib/bug_bunny/adapter.rb', line 29

def publish!(message, publish_queue, opts = {})
  Timeout::timeout(TIMEOUT) do
    if opts[:check_consumers_count] && publish_queue.check_consumers.zero?
      self.communication_response = ::BugBunny::Message.new(status: :error, body: CONSUMER_COUNT_ZERO)
      return
    end

    publish_opts = { routing_key: publish_queue.name,
                     persistent: opts[:persistent],
                     correlation_id: message.correlation_id }

    publish_opts[:reply_to] = opts[:reply_to] if opts[:reply_to]

    # Esta es la idea en el caso que nos pongamos mas mañosos y queramos cambiar las exchange a la hora de publicar.
    # _exchange = if opts.has_key?(:exchange_type)
    #               channel.exchange(opts[:exchange_type].to_s, { type: opts[:exchange_type] })
    #             else
    #               exchange
    #             end
    # _exchange.publish(message.to_json, publish_opts)
    logger.debug("#{publish_queue.name}-Send Request: (#{message})")

    rabbit.exchange.publish(message.to_json, publish_opts)
    rabbit.channel.wait_for_confirms if rabbit.confirm_select

    self.communication_response = ::BugBunny::Message.new(status: true)
  end
rescue Timeout::Error => e
  logger.error(e)
  close_connection!
  self.communication_response = ::BugBunny::Message.new(status: :error, body: PUBLISH_TIMEOUT, exception: e)
rescue StandardError => e
  logger.error(e)
  close_connection!
  self.communication_response = ::BugBunny::Message.new(status: :error, body: BOMBA, exception: e)
end

#publish_and_consume!(publish_message, sync_queue, opts = {}) ⇒ Object 



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# File 'lib/bug_bunny/adapter.rb', line 201

def publish_and_consume!(publish_message, sync_queue, opts={})
  reply_queue = build_queue('', initialize: true, exclusive: true, durable: false, auto_delete: true)

  retries = 0
  begin
    publish!(publish_message, sync_queue, opts.merge(reply_to: reply_queue.name))
  rescue
    if (retries += 1) <= 3
      sleep 0.5
      retry
    end

    close_connection!
    raise
  end

  return communication_response unless communication_response.success?

  t = Thread.new do
    retries = 0
    begin
      consume!(reply_queue, thread: Thread.current, exclusive: true) do |msg|
        yield(msg) if block_given?
      end
    rescue
      if (retries += 1) <= 3
        sleep 0.5
        retry
      end
      raise
    end
  end
  t.join
  communication_response
end

#status ⇒ Object 



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# File 'lib/bug_bunny/adapter.rb', line 287

def status
  rabbit.try(:status)
end