Golang Connection.NotifyBlocked Examples

Example #1

File: rabbitmq.go Project: yuvista/rabbitmq

// NotifyClose registers a listener for close events either initiated by an error
// accompaning a connection.close method or by a normal shutdown.
// On normal shutdowns, the chan will be closed.
// To reconnect after a transport or protocol error, we should register a listener here and
// re-connect to server
// Reconnection is -not- working by now
func (r *RabbitMQ) handleErrors(conn *amqp.Connection) {
	go func() {
		for amqpErr := range conn.NotifyClose(make(chan *amqp.Error)) {
			// if the computer sleeps then wakes longer than a heartbeat interval,
			// the connection will be closed by the client.
			// https://github.com/streadway/amqp/issues/82
			r.log.Fatal(amqpErr.Error())

			if strings.Contains(amqpErr.Error(), "NOT_FOUND") {
				// do not continue
			}

			// CRITICAL Exception (320) Reason: "CONNECTION_FORCED - broker forced connection closure with reason 'shutdown'"
			// CRITICAL Exception (501) Reason: "read tcp 127.0.0.1:5672: i/o timeout"
			// CRITICAL Exception (503) Reason: "COMMAND_INVALID - unimplemented method"
			if amqpErr.Code == 501 {
				// reconnect
			}

			if amqpErr.Code == 320 {
				// fmt.Println("tryin to reconnect")
				// c.reconnect()
			}

		}
	}()
	go func() {
		for b := range conn.NotifyBlocked(make(chan amqp.Blocking)) {
			if b.Active {
				r.log.Info("TCP blocked: %q", b.Reason)
			} else {
				r.log.Info("TCP unblocked")
			}
		}
	}()
}