Class: BugBunny::Rabbit

Inherits:
Object
  • Object
show all
Includes:
ActiveModel::Attributes, ActiveModel::Model
Defined in:
lib/bug_bunny/rabbit.rb

Constant Summary collapse

DEFAULT_EXCHANGE_OPTIONS = 
{ durable: false, auto_delete: false }.freeze
DEFAULT_QUEUE_OPTIONS =

DEFAULT_MAX_PRIORITY = 10

{
  exclusive: false,
  durable: false,
  auto_delete: true,
  # arguments: { 'x-max-priority' => DEFAULT_MAX_PRIORITY }
}.freeze

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#connection ⇒ Object

Returns the value of attribute connection.



37
38
39
 
# File 'lib/bug_bunny/rabbit.rb', line 37

def connection
  @connection
end

#exchange ⇒ Object

Returns the value of attribute exchange.



37
38
39
 
# File 'lib/bug_bunny/rabbit.rb', line 37

def exchange
  @exchange
end

#queue ⇒ Object

Returns the value of attribute queue.



37
38
39
 
# File 'lib/bug_bunny/rabbit.rb', line 37

def queue
  @queue
end

Class Method Details

.create_connection(host: nil, username: nil, password: nil, vhost: nil) ⇒ Object 



289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
 
# File 'lib/bug_bunny/rabbit.rb', line 289

def self.create_connection(host: nil, username: nil, password: nil, vhost: nil)
  bunny = Bunny.new(
    host: host || BugBunny.configuration.host,
    username: username || BugBunny.configuration.username,
    password: password || BugBunny.configuration.password,
    vhost: vhost || BugBunny.configuration.vhost,
    logger: BugBunny.configuration.logger || Rails.logger,
    automatically_recover: BugBunny.configuration.automatically_recover || false,
    network_recovery_interval: BugBunny.configuration.network_recovery_interval || 5,
    connection_timeout: BugBunny.configuration.connection_timeout || 10,
    read_timeout: BugBunny.configuration.read_timeout || 90,
    write_timeout: BugBunny.configuration.write_timeout || 90,
    heartbeat: BugBunny.configuration.heartbeat || 30,
    continuation_timeout: BugBunny.configuration.continuation_timeout || 15_000
  )

  bunny.tap(&:start)
rescue Timeout::Error, Bunny::ConnectionError => e
  # Timeout::Error (para el timeout de conexión TCP) se captura separadamente.
  # Bunny::ConnectionError cubre TCPConnectionFailed, AuthenticationFailure, AccessRefused, etc.
  raise BugBunny::Error::Connection, e.message
end

.run_consumer(connection:, exchange:, exchange_type:, queue_name:, routing_key:, queue_opts: {}) ⇒ Object 



249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
 
# File 'lib/bug_bunny/rabbit.rb', line 249

def self.run_consumer(connection:, exchange:, exchange_type:, queue_name:, routing_key:, queue_opts: {})
  app = new(connection: connection)
  app.build_exchange(name: exchange, type: exchange_type)
  app.build_queue(name: queue_name, opts: queue_opts)
  app.queue.bind(app.exchange, routing_key: routing_key)
  app.consume!
  health_check_thread = start_health_check(app, queue_name: queue_name, exchange_name: exchange, exchange_type: exchange_type)
  health_check_thread.wait_for_termination
  raise 'Health check error: Forcing reconnect.'
rescue StandardError => e
  # Esto lo pongo por que si levanto el rabbit y el consumer a la vez
  # El rabbit esta una banda de tiempo hasta aceptar conexiones, por lo que
  # el consumer explota 2 millones de veces, por lo tanto con esto hago
  # la espera ocupada y me evito de ponerlo en el entrypoint-docker
  Rails.logger.error("[RABBIT] Consumer error: #{e.message} (#{e.class})")
  Rails.logger.debug("[RABBIT] Consumer error: #{e.backtrace}")
  connection&.close
  sleep RABBIT_NETWORK_RECOVERY
  retry
end

.start_health_check(app, queue_name:, exchange_name:, exchange_type:) ⇒ Object 



270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
 
# File 'lib/bug_bunny/rabbit.rb', line 270

def self.start_health_check(app, queue_name:, exchange_name:, exchange_type:)
  task = Concurrent::TimerTask.new(execution_interval: RABBIT_HEALT_CHECK) do
    # con esto veo si el exachange o la cola no la borraron desde la vista de rabbit
    app.channel.exchange_declare(exchange_name, exchange_type, passive: true)
    app.channel.queue_declare(queue_name, passive: true)
  rescue Bunny::NotFound
    Rails.logger.error("Health check failed: Queue '#{queue_name}' no longer exists!")
    app.connection.close
    task.shutdown # Detenemos la tarea para que no se ejecute de nuevo
  rescue StandardError => e
    Rails.logger.error("Health check error: #{e.message}. Forcing reconnect.")
    app.connection.close
    task.shutdown
  end

  task.execute
  task
end

Instance Method Details

#build_exchange(name: nil, type: 'direct', opts: {}) ⇒ Object 



53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
 
# File 'lib/bug_bunny/rabbit.rb', line 53

def build_exchange(name: nil, type: 'direct', opts: {})
  return @exchange if defined?(@exchange)

  exchange_options = DEFAULT_EXCHANGE_OPTIONS.merge(opts.compact)

  if name.blank?
    @exchange = channel.default_exchange
    return @exchange
  end

  Rails.logger.info("ExchangeName: #{name}, ExchangeType: #{type}, opts: #{opts}")

  @exchange = case type.to_sym
              when :topic
                channel.topic(name, exchange_options)
              when :direct
                channel.direct(name, exchange_options)
              when :fanout
                channel.fanout(name, exchange_options)
              when :headers
                channel.headers(name, exchange_options)
              end
end

#build_queue(name: '', opts: {}) ⇒ Object 



90
91
92
93
94
95
 
# File 'lib/bug_bunny/rabbit.rb', line 90

def build_queue(name: '', opts: {})
  name = name.to_s
  queue_options = DEFAULT_QUEUE_OPTIONS.merge(opts.compact)
  Rails.logger.info("QueueName: #{name}, opts: #{queue_options}")
  @queue = channel.queue(name, queue_options)
end

#build_response(status:, body:) ⇒ Object

El success y el error es para tener compatibilidad con el bug_bunny



233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
 
# File 'lib/bug_bunny/rabbit.rb', line 233

def build_response(status:, body:)
  case status
  when 'success' then body # Old compatibility
  when 'error' then raise BugBunny::ResponseError::InternalServerError, body # Old compatibility
  when 200, 201 then body
  when 204 then nil
  when 400 then raise BugBunny::ResponseError::BadRequest, body.to_json
  when 404 then raise BugBunny::ResponseError::NotFound
  when 406 then raise BugBunny::ResponseError::NotAcceptable
  when 422 then raise BugBunny::ResponseError::UnprocessableEntity, body.to_json
  when 500 then raise BugBunny::ResponseError::InternalServerError, body.to_json
  else
    raise BugBunny::ResponseError::Base, body.to_json
  end
end

#channel ⇒ Object 



39
40
41
42
43
44
45
46
47
48
49
50
51
 
# File 'lib/bug_bunny/rabbit.rb', line 39

def channel
  @channel_mutex ||= Mutex.new
  return @channel if @channel&.open?

  @channel_mutex.synchronize do
    return @channel if @channel&.open?

    @channel = connection.create_channel
    @channel.confirm_select
    @channel.prefetch(RABBIT_CHANNEL_PREFETCH) # Limita mensajes concurrentes por consumidor
    @channel
  end
end

#consume! ⇒ Object 



181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
 
# File 'lib/bug_bunny/rabbit.rb', line 181

def consume!
  queue.subscribe(manual_ack: true, block: true) do |delivery_info, properties, body|
    Rails.logger.debug("DeliveryInfo: #{delivery_info}")
    Rails.logger.debug("Properties: #{properties}")
    Rails.logger.debug("Body: #{body}")

    raise StandardError, 'Undefined properties.type' if properties.type.blank?

    route = parse_route(properties.type)

    headers = {
      type: properties.type,
      controller: route[:controller],
      action: route[:action],
      id: route[:id],
      content_type: properties.content_type,
      content_encoding: properties.content_encoding,
      correlation_id: properties.correlation_id
    }

    controller = "rabbit/controllers/#{route[:controller]}".camelize.constantize
    response_payload = controller.call(headers: headers, body: body)

    Rails.logger.debug("Response: #{response_payload}")

    if properties.reply_to.present?
      Rails.logger.info("Sending response to #{properties.reply_to}")

      # Publicar la respuesta directamente a la cola de respuesta
      # No se necesita un exchange, se publica a la cola por su nombre
      channel.default_exchange.publish(
        response_payload.to_json,
        routing_key: properties.reply_to,
        correlation_id: properties.correlation_id
      )
    end

    channel.ack(delivery_info.delivery_tag)
  rescue NoMethodError => e # action controller no exist
    Rails.logger.error(e)
    channel.reject(delivery_info.delivery_tag, false)
  rescue NameError => e # Controller no exist
    Rails.logger.error(e)
    channel.reject(delivery_info.delivery_tag, false)
  rescue StandardError => e
    Rails.logger.error("Error processing message: #{e.message} (#{e.class})")
    # Reject the message and do NOT re-queue it immediately.
    channel.reject(delivery_info.delivery_tag, false)
  end
end

#default_publish_options ⇒ Object 



77
78
79
80
81
82
83
84
85
86
87
88
 
# File 'lib/bug_bunny/rabbit.rb', line 77

def default_publish_options
  @default_publish_opts ||= {
    persistent: false,
    app_id: Rails.application.class.module_parent_name
  }.freeze

  # Solo generamos valores dinámicos por llamada
  @default_publish_opts.merge(
    timestamp: Time.current.to_i,
    correlation_id: SecureRandom.uuid
  )
end

#parse_route(route) ⇒ Object 



161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
 
# File 'lib/bug_bunny/rabbit.rb', line 161

def parse_route(route)
  # De momento no resuelve anidado
  segments = route.split('/')
  controller_name = segments[0]
  action_name = 'index'
  id = nil

  case segments.length
  when 2
    # Patrón: controller/action (Ej: 'secrets/index', 'swarm/info')
    action_name = segments[1]
  when 3
    # Patrón: controller/id/action (Ej: 'secrets/123/update', 'services/999/destroy')
    id = segments[1]
    action_name = segments[2]
  end

  { controller: controller_name, action: action_name, id: id }
end

#publish!(msg, opts) ⇒ Object 



97
98
99
100
101
102
103
104
105
106
107
108
109
110
 
# File 'lib/bug_bunny/rabbit.rb', line 97

def publish!(msg, opts)
  options = default_publish_options.merge(opts.compact)

  msg = msg.instance_of?(Hash) ? msg.to_json : msg.to_s

  Rails.logger.info("Message: #{msg}")
  Rails.logger.info("Options: #{options}")

  exchange.publish(msg, options)
  # channel.wait_for_confirms # Esto solo confirma que el mensaje llego el exchange
rescue Bunny::Exception => e
  Rails.logger.error(e)
  raise BugBunny::PublishError, e
end

#publish_and_consume!(msg, opts) ⇒ Object 



112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
 
# File 'lib/bug_bunny/rabbit.rb', line 112

def publish_and_consume!(msg, opts)
  options = default_publish_options.merge(opts.compact)

  response_latch = Concurrent::CountDownLatch.new(1)
  response = nil

  reply_queue = channel.queue('', exclusive: true, durable: false, auto_delete: true)
  options[:reply_to] = reply_queue.name

  subscription = reply_queue.subscribe(manual_ack: true, block: false) do |delivery_info, properties, body|
    Rails.logger.debug("CONSUMER DeliveryInfo: #{delivery_info}")
    Rails.logger.debug("CONSUMER Properties: #{properties}")
    Rails.logger.debug("CONSUMER Body: #{body}")
    if properties.correlation_id == options[:correlation_id]
      response = ActiveSupport::JSON.decode(body).deep_symbolize_keys.with_indifferent_access
      channel.ack(delivery_info.delivery_tag)
      response_latch.count_down
    else
      Rails.logger.debug('Correlation_id not match')
      # Si el correlation_id no coincide, rechazamos el mensaje para que RabbitMQ lo maneje
      channel.reject(delivery_info.delivery_tag, false)
    end
  end

  Rails.logger.debug("PUBLISHER Message: #{msg}")
  Rails.logger.debug("PUBLISHER Options: #{options}")
  publish!(msg, options)

  if response_latch.wait(RABBIT_CONNECTION_TIMEOUT)
    subscription.cancel
    build_response(status: response[:status], body: response[:body])
  else
    raise "Timeout: No response received within #{RABBIT_CONNECTION_TIMEOUT} seconds."
  end
rescue BugBunny::ResponseError::Base => e
  subscription&.cancel
  raise e
rescue RuntimeError => e
  subscription&.cancel
  Rails.logger.error("[Rabbit] Error in publish_and_consume: #{e.class} - <#{e.message}>")
  raise(BugBunny::ResponseError::RequestTimeout, e.message) if e.message.include?('Timeout')

  raise BugBunny::ResponseError::InternalServerError, e.message
rescue StandardError => e
  subscription&.cancel
  Rails.logger.error("[Rabbit] Error in publish_and_consume: #{e.class} - <#{e.message}>")
  raise e
end