コード例 #1
0
ファイル: amqp.go プロジェクト: TildaLabs/machinery
// Connects to the message queue, opens a channel, declares a queue
func (amqpBroker *AMQPBroker) open() (*amqp.Connection, *amqp.Channel, amqp.Queue, <-chan amqp.Confirmation, error) {
	var err error
	var channel *amqp.Channel
	var queue amqp.Queue
	if conn == nil {
		once.Do(amqpBroker.connect)
	}

	if conn == nil {
		return conn, channel, queue, nil, fmt.Errorf("Can't connect to the server")
	}

	channel, err = conn.Channel()
	if err != nil {
		fmt.Printf("Channel: %s\n", err)
	}
	if err := channel.ExchangeDeclare(
		amqpBroker.config.Exchange,     // name of the exchange
		amqpBroker.config.ExchangeType, // type
		true,  // durable
		false, // delete when complete
		false, // internal
		false, // noWait
		nil,   // arguments
	); err != nil {
		fmt.Printf("Exchange: %s\n", err)
	}

	queue, err = channel.QueueDeclare(
		amqpBroker.config.DefaultQueue, // name
		true,  // durable
		false, // delete when unused
		false, // exclusive
		false, // no-wait
		nil,   // arguments
	)
	if err != nil {
		fmt.Printf("Queue Declare: %s\n", err)
	}

	if err := channel.QueueBind(
		queue.Name,                   // name of the queue
		amqpBroker.config.BindingKey, // binding key
		amqpBroker.config.Exchange,   // source exchange
		false, // noWait
		nil,   // arguments
	); err != nil {
		fmt.Printf("Queue Bind: %s\n", err)
	}

	confirmsChan := make(chan amqp.Confirmation, 1)
	// Enable publish confirmations
	if err := channel.Confirm(false); err != nil {
		close(confirmsChan)
		fmt.Printf("Channel could not be put into confirm mode: %s\n", err)
	}

	return conn, channel, queue, channel.NotifyPublish(confirmsChan), nil
}
コード例 #2
0
ファイル: util.go プロジェクト: arvindram03/asynch-workers
func QueueBind(q *amqp.Queue, exchange string, ch *amqp.Channel) error {
	return ch.QueueBind(
		q.Name,   // queue name
		"",       // routing key
		exchange, // exchange
		false,
		nil)
}
コード例 #3
0
ファイル: main.go プロジェクト: giulioungaretti/coelho
// Bind the queue to an exchange
func (r Rabbit) Bind(ch *amqp.Channel, queueName string, rk string) error {
	log.Infof("Binding queue %s to exchange %s with routing key %s with %s exchange ",
		queueName, r.Exchange, rk, r.ExchangeType)
	err := ch.QueueBind(
		queueName,
		rk,
		r.Exchange,
		r.NoWait,
		r.Arguments)
	return err
}
コード例 #4
0
ファイル: relay.go プロジェクト: vishnumitraha/relay
// Ensures the given queue exists and is bound to the exchange
func (r *Relay) declareQueue(ch *amqp.Channel, name string) error {
	// Declare the queue
	if _, err := ch.QueueDeclare(name, true, false, false, false, nil); err != nil {
		return fmt.Errorf("Failed to declare queue '%s'! Got: %s", name, err)
	}

	// Bind the queue to the exchange
	if err := ch.QueueBind(name, name, r.conf.Exchange, false, nil); err != nil {
		return fmt.Errorf("Failed to bind queue '%s'! Got: %s", name, err)
	}
	return nil
}
コード例 #5
0
ファイル: amqp.go プロジェクト: halafi/gomatch
// bindReceiveQueue binds the amqpReceiveExchange name to a queue.
func bindReceiveQueue(ch *amqp.Channel, q amqp.Queue) {
	err := ch.QueueBind(
		q.Name,              // queue name
		"",                  // routing key
		amqpReceiveExchange, // exchange
		false,
		nil)

	if err != nil {
		log.Fatalf("Failed to bind a queue: %s", err)
	}
}
コード例 #6
0
ファイル: amqp.go プロジェクト: wmydz1/machinery
// Connects to the message queue, opens a channel, declares a queue
func open(cnf *config.Config) (*amqp.Connection, *amqp.Channel, amqp.Queue, error) {
	var conn *amqp.Connection
	var channel *amqp.Channel
	var queue amqp.Queue
	var err error

	conn, err = amqp.Dial(cnf.Broker)
	if err != nil {
		return conn, channel, queue, fmt.Errorf("Dial: %s", err)
	}

	channel, err = conn.Channel()
	if err != nil {
		return conn, channel, queue, fmt.Errorf("Channel: %s", err)
	}

	if err := channel.ExchangeDeclare(
		cnf.Exchange,     // name of the exchange
		cnf.ExchangeType, // type
		true,             // durable
		false,            // delete when complete
		false,            // internal
		false,            // noWait
		nil,              // arguments
	); err != nil {
		return conn, channel, queue, fmt.Errorf("Exchange: %s", err)
	}

	queue, err = channel.QueueDeclare(
		cnf.DefaultQueue, // name
		true,             // durable
		false,            // delete when unused
		false,            // exclusive
		false,            // no-wait
		nil,              // arguments
	)
	if err != nil {
		return conn, channel, queue, fmt.Errorf("Queue Declare: %s", err)
	}

	if err := channel.QueueBind(
		queue.Name,     // name of the queue
		cnf.BindingKey, // binding key
		cnf.Exchange,   // source exchange
		false,          // noWait
		nil,            // arguments
	); err != nil {
		return conn, channel, queue, fmt.Errorf("Queue Bind: %s", err)
	}

	return conn, channel, queue, nil
}
コード例 #7
0
ファイル: sine.go プロジェクト: sideb0ard/Craxx
func sineMain(ch *amqp.Channel) {

	go sniffy()
	q, err := ch.QueueDeclare(
		"",    // name
		false, // durable
		false, // delete when usused
		true,  // exclusive
		false, // no-wait
		nil,   // arguments
	)
	failOnError(err, "Failed to declare a queue")

	err = ch.QueueBind(
		q.Name, // queue name
		"",     // routing key
		"bpm",  // exchange
		false,
		nil)
	failOnError(err, "Failed to bind a queue")

	msgs, err := ch.Consume(
		q.Name, // queue
		"",     // consumer
		true,   // auto-ack
		false,  // exclusive
		false,  // no-local
		false,  // no-wait
		nil,    // args
	)
	failOnError(err, "Failed to register a consumer")

	portaudio.Initialize()
	defer portaudio.Terminate()
	//s := newStereoSine(256, 320, sampleRate)
	s := newStereoSine(220, 220, sampleRate)
	defer s.Close()
	chk(s.Start())
	defer s.Stop()

	for m := range msgs {
		var bm BpmMsg
		err := json.Unmarshal(m.Body, &bm)
		if err != nil {
			fmt.Println("blah", err)
		}
		bpm = bm.Bpm
	}
}
コード例 #8
0
ファイル: queue.go プロジェクト: Rick1125/mailgo
func Consume(ch *amqp.Channel, b *bind) (<-chan amqp.Delivery, error) {
	var err error
	q, err := ch.QueueDeclare(b.name, true, false, false, false, nil)
	if err != nil {
		Log.Error("queue declare err: %v", err)
	}

	err = ch.QueueBind(b.name, b.key, b.exchange, false, nil)
	if err != nil {
		Log.Error("queue bind err: %v", err)
	}

	tasks, err := ch.Consume(q.Name, b.tag, false, false, false, false, nil)
	return tasks, err
}
コード例 #9
0
ファイル: main.go プロジェクト: presbrey/mqslice
func (s *Server) consumer() {
	var (
		ch  *amqp.Channel
		err error
		q   amqp.Queue

		consumer <-chan amqp.Delivery
	)
	qArgs := amqp.Table{}
	if *ttl > 0 {
		qArgs["x-message-ttl"] = int64(*ttl)
	}
	if s.Ttl > 0 {
		qArgs["x-message-ttl"] = int64(s.Ttl)
	}
	for s.alive {
		if err != nil {
			ch = nil
			log.Println(err)
			err = nil
			time.Sleep(*backoff)
			continue
		}
		if ch == nil {
			ch, err = s.dial()
		}
		if ch != nil {
			q, err = ch.QueueDeclare(*queue, false, true, true, false, qArgs)
			if err != nil {
				continue
			}
			err = ch.QueueBind(q.Name, s.Source, s.Source, false, nil)
			if err != nil {
				continue
			}
			consumer, err = ch.Consume(q.Name, "mqslice", true, true, false, false, nil)
			if err != nil {
				continue
			}
			for elt := range consumer {
				s.ch <- elt.Body
			}
			ch.Close()
			ch = nil
		}
	}
}
コード例 #10
0
ファイル: relay.go プロジェクト: gaffneyc/relay
// Ensures the given queue exists and is bound to the exchange
func (r *Relay) declareQueue(ch *amqp.Channel, name string, routingKey string) error {
	var args amqp.Table
	if r.conf.QueueTTL > 0 {
		args = make(map[string]interface{})
		msec := int32(r.conf.QueueTTL / time.Millisecond)
		args["x-expires"] = msec
	}

	// Declare the queue
	if _, err := ch.QueueDeclare(name, true, false, false, false, args); err != nil {
		return fmt.Errorf("Failed to declare queue '%s'! Got: %s", name, err)
	}

	// Bind the queue to the exchange
	if err := ch.QueueBind(name, routingKey, r.conf.Exchange, false, nil); err != nil {
		return fmt.Errorf("Failed to bind queue '%s'! Got: %s", name, err)
	}
	return nil
}
コード例 #11
0
ファイル: server.go プロジェクト: sideb0ard/Craxx
func msgListener(ch *amqp.Channel) {
	q, err := ch.QueueDeclare(
		"",    // name
		false, // durable
		false, // delete when usused
		true,  // exclusive
		false, // no-wait
		nil,   // arguments
	)
	failOnError(err, "Failed to declare a queue")

	err = ch.QueueBind(
		q.Name,       // queue name
		"",           // routing key
		"updateMsgs", // exchange
		false,
		nil)
	failOnError(err, "Failed to bind a queue")

	msgs, err := ch.Consume(
		q.Name, // queue
		"",     // consumer
		true,   // auto-ack
		false,  // exclusive
		false,  // no-local
		false,  // no-wait
		nil,    // args
	)
	failOnError(err, "Failed to register a consumer")

	for d := range msgs {
		var m UpdateMsg
		err := json.Unmarshal(d.Body, &m)
		if err != nil {
			fmt.Println("blah", err)
		}
		if m.Name == "bpm" {
			fmt.Println("Setting BPM to", m.Value)
			bpm = m.Value
		}
	}
}
コード例 #12
0
ファイル: golery.go プロジェクト: andrefsp/golery
func createQueue(channel *amqp.Channel, queueName string) {

	err := channel.ExchangeDeclare(
		queueName, // name of the exchange
		"direct",  // type
		true,      // durable
		false,     // delete when complete
		false,     // internal
		false,     // noWait
		nil,       // arguments
	)
	if err != nil {
		log.Fatal("Couldn't declare exchange: %s", err)
	}

	queue, err := channel.QueueDeclare(
		queueName, // name of the queue
		true,      // durable
		false,     // delete when usused
		false,     // exclusive
		false,     // noWait
		nil,       // arguments
	)

	if err != nil {
		log.Fatal("Couldn't declare queue: %s", err)
	}

	err = channel.QueueBind(
		queue.Name, // name of the queue
		queueName,  // bindingKey
		queueName,  // sourceExchange
		false,      // noWait
		nil,        // arguments
	)
	if err != nil {
		log.Fatal("Couldn't bind queue: %s", err)
	}

}
コード例 #13
0
ファイル: transport-amqp.go プロジェクト: XANi/zerosvc
func amqpCreateAndBindQueue(ch *amqp.Channel, filter string) (amqp.Queue, error) {
	q, err := ch.QueueDeclare(
		"",    // name
		false, // durable
		false, // delete when usused
		true,  // exclusive
		false, // no-wait
		nil,   // arguments
	)
	if err != nil {
		return q, err
	}
	err = ch.QueueBind(
		q.Name,   // queue name
		filter,   // routing key
		"events", // exchange
		false,
		nil,
	)
	if err != nil {
		return q, err
	}
	return q, err
}
コード例 #14
0
ファイル: amqp.go プロジェクト: ddmd2015/machinery
// Connects to the message queue, opens a channel, declares a queue
func open(taskUUID string, cnf *config.Config) (*amqp.Connection, *amqp.Channel, amqp.Queue, error) {
	var conn *amqp.Connection
	var channel *amqp.Channel
	var queue amqp.Queue
	var err error

	conn, err = amqp.Dial(cnf.Broker)
	if err != nil {
		return conn, channel, queue, fmt.Errorf("Dial: %s", err)
	}

	channel, err = conn.Channel()
	if err != nil {
		return conn, channel, queue, fmt.Errorf("Channel: %s", err)
	}

	err = channel.ExchangeDeclare(
		cnf.Exchange,     // name of the exchange
		cnf.ExchangeType, // type
		true,             // durable
		false,            // delete when complete
		false,            // internal
		false,            // noWait
		nil,              // arguments
	)
	if err != nil {
		return conn, channel, queue, fmt.Errorf("Exchange: %s", err)
	}

	resultsExpireIn := cnf.ResultsExpireIn * 1000
	if resultsExpireIn == 0 {
		// // expire results after 1 hour by default
		resultsExpireIn = 3600 * 1000
	}
	arguments := amqp.Table{
		"x-message-ttl": int32(resultsExpireIn),
	}
	queue, err = channel.QueueDeclare(
		taskUUID, // name
		false,    // durable
		true,     // delete when unused
		false,    // exclusive
		false,    // no-wait
		arguments,
	)
	if err != nil {
		return conn, channel, queue, fmt.Errorf("Queue Declare: %s", err)
	}

	if err := channel.QueueBind(
		queue.Name,   // name of the queue
		taskUUID,     // binding key
		cnf.Exchange, // source exchange
		false,        // noWait
		nil,          // arguments
	); err != nil {
		return conn, channel, queue, fmt.Errorf("Queue Bind: %s", err)
	}

	return conn, channel, queue, nil
}
コード例 #15
0
ファイル: consumer.go プロジェクト: ninnemana/API
func NewConsumer(consumerName string, queueName string, exchange Exchange, config *Config) (consumer *Consumer, err error) {
	if consumerName == "" {
		err = errors.New("Must give the consumer a name")
		return
	}
	if queueName == "" {
		err = errors.New("Must give the queue name.")
		return
	}
	if len(queueName) > 255 {
		err = errors.New("Must give a queue name that contains 1-255 characters.")
		return
	}

	if err = exchange.Validate(); err != nil {
		return
	}

	if config == nil {
		config = NewConfig()
	}

	conn, err := amqp.Dial(config.GetConnectionString())
	if err != nil {
		return
	}

	//setup the channel
	var channel *amqp.Channel
	if channel, err = conn.Channel(); err != nil {
		return
	}

	//setup the exchange
	if err = channel.ExchangeDeclare(
		exchange.Name, //exchange name
		exchange.Type, //exchange type
		true,          //durable
		false,         //remove when complete
		false,         //internal
		false,         //noWait
		nil,           //arguments
	); err != nil {
		return
	}

	//setup the queue
	var queue amqp.Queue
	if queue, err = channel.QueueDeclare(
		queueName, // name of the queue
		true,      // durable
		false,     // delete when usused
		false,     // exclusive
		false,     // noWait
		nil,       // arguments
	); err != nil {
		return
	}
	if err = channel.QueueBind(
		queue.Name,          //queue name
		exchange.RoutingKey, //routing key ("binding key")
		exchange.Name,       //exchange (source)
		false,               //noWait
		nil,                 //arguments
	); err != nil {
		return
	}

	//setup the deliverables
	var messages <-chan amqp.Delivery

	if messages, err = channel.Consume(
		queue.Name,   //queue name
		consumerName, //consumer name
		false,        //auto acknowledge
		false,        //exclusive
		false,        //not local
		false,        //no wait
		nil,          //arguments
	); err != nil {
		return
	}

	consumer = new(Consumer)
	consumer.Name = consumerName
	consumer.config = config
	consumer.conn = conn
	consumer.channel = channel
	consumer.Exchange = exchange
	consumer.incomingMessages = messages

	return
}
コード例 #16
0
ファイル: topic.go プロジェクト: benschw/chinchilla
func (d *Topic) Consume(ch *amqp.Channel, cfg config.EndpointConfig) (<-chan amqp.Delivery, error) {
	queueName, ok := cfg.QueueConfig["queuename"].(string)
	if !ok {
		return nil, fmt.Errorf("unable to parse queuename from config")
	}

	topicName, ok := cfg.QueueConfig["topicname"].(string)
	if !ok {
		return nil, fmt.Errorf("unable to parse topicname from config")
	}

	exchangeName, ok := cfg.QueueConfig["exchangename"].(string)
	if !ok {
		return nil, fmt.Errorf("unable to parse exchangename from config")
	}

	prefetch, ok := cfg.QueueConfig["prefetch"].(int)
	if !ok || prefetch < 1 {
		prefetch = 1
	}

	err := ch.ExchangeDeclare(
		exchangeName, // name
		"topic",      // type
		true,         // durable
		false,        // auto-deleted
		false,        // internal
		false,        // no-wait
		nil,          // arguments
	)
	if err != nil {
		return nil, err
	}

	q, err := ch.QueueDeclare(
		queueName, // name
		true,      // durable
		false,     // delete when usused
		false,     // exclusive
		false,     // no-wait
		nil,       // arguments
	)
	if err != nil {
		return nil, err
	}

	err = ch.Qos(
		prefetch, // prefetch count
		0,        // prefetch size
		false,    // global
	)
	if err != nil {
		return nil, err
	}

	err = ch.QueueBind(
		q.Name,       // queue name
		topicName,    // routing key
		exchangeName, // exchange
		false,
		nil,
	)
	if err != nil {
		return nil, err
	}

	msgs, err := ch.Consume(
		q.Name, // queue
		"",     // consumer
		false,  // auto-ack
		false,  // exclusive
		false,  // no-local
		false,  // no-wait
		nil,    // args
	)
	if err != nil {
		return nil, err
	}
	return msgs, nil
}
コード例 #17
0
ファイル: fromAMQP.go プロジェクト: jprobinson/streamtools
// connects to an AMQP topic and emits each message into streamtools.
func (b *FromAMQP) Run() {
	var err error
	var conn *amqp.Connection
	var amqp_chan *amqp.Channel
	toOut := make(blocks.MsgChan)
	toError := make(chan error)

	host := "localhost"
	port := "5672"
	username := "******"
	password := "******"
	routingkey := "#"
	exchange := "amq.topic"
	exchange_type := "topic"

	for {
		select {
		case msg := <-toOut:
			b.out <- msg
		case err := <-toError:
			b.Error(err)
		case ruleI := <-b.inrule:
			rule := ruleI.(map[string]interface{})

			routingkey, err = util.ParseString(rule, "RoutingKey")
			if err != nil {
				b.Error(err)
				continue
			}
			exchange, err = util.ParseString(rule, "Exchange")
			if err != nil {
				b.Error(err)
				continue
			}
			exchange_type, err = util.ParseString(rule, "ExchangeType")
			if err != nil {
				b.Error(err)
				continue
			}
			host, err = util.ParseString(rule, "Host")
			if err != nil {
				b.Error(err)
				continue
			}
			port, err = util.ParseString(rule, "Port")
			if err != nil {
				b.Error(err)
				continue
			}
			username, err = util.ParseString(rule, "Username")
			if err != nil {
				b.Error(err)
				continue
			}
			password, err = util.ParseString(rule, "Password")
			if err != nil {
				b.Error(err)
				continue
			}

			conn, err = amqp.Dial("amqp://" + username + ":" + password + "@" + host + ":" + port + "/")
			if err != nil {
				b.Error(err)
				continue
			}

			amqp_chan, err = conn.Channel()
			if err != nil {
				b.Error(err)
				continue
			}

			err = amqp_chan.ExchangeDeclare(
				exchange,      // name
				exchange_type, // type
				true,          // durable
				false,         // auto-deleted
				false,         // internal
				false,         // noWait
				nil,           // arguments
			)
			if err != nil {
				b.Error(err)
				continue
			}

			queue, err := amqp_chan.QueueDeclare(
				"",    // name
				false, // durable
				true,  // delete when unused
				false, // exclusive
				false, // noWait
				nil,   // arguments
			)
			if err != nil {
				b.Error(err)
				continue
			}

			err = amqp_chan.QueueBind(
				queue.Name, // queue name
				routingkey, // routing key
				exchange,   // exchange
				false,
				nil,
			)

			if err != nil {
				b.Error(err)
				continue
			}

			deliveries, err := amqp_chan.Consume(
				queue.Name, // name
				"",         // consumerTag
				true,       // noAck
				false,      // exclusive
				false,      // noLocal
				false,      // noWait
				nil,        // arguments
			)
			if err != nil {
				b.Error(err)
				continue
			}

			h := readWriteAMQPHandler{toOut, toError}
			go h.handle(deliveries)
		case <-b.quit:
			if amqp_chan != nil {
				amqp_chan.Close()
			}
			if conn != nil {
				conn.Close()
			}
			return
		case c := <-b.queryrule:
			c <- map[string]interface{}{
				"Host":         host,
				"Port":         port,
				"Username":     username,
				"Password":     password,
				"Exchange":     exchange,
				"ExchangeType": exchange_type,
				"RoutingKey":   routingkey,
			}
		}
	}
}
コード例 #18
0
ファイル: amqp.go プロジェクト: TildaLabs/machinery
// Connects to the message queue, opens a channel, declares a queue
func (amqpBackend *AMQPBackend) open(taskUUID string) (*amqp.Connection, *amqp.Channel, amqp.Queue, <-chan amqp.Confirmation, error) {
	var conn *amqp.Connection
	var channel *amqp.Channel
	var queue amqp.Queue
	var err error

	conn, err = amqp.Dial(amqpBackend.config.ResultBackend)
	if err != nil {
		return conn, channel, queue, nil, fmt.Errorf("Dial: %s", err)
	}

	channel, err = conn.Channel()
	if err != nil {
		return conn, channel, queue, nil, fmt.Errorf("Channel: %s", err)
	}

	err = channel.ExchangeDeclare(
		amqpBackend.config.Exchange,     // name of the exchange
		amqpBackend.config.ExchangeType, // type
		true,  // durable
		false, // delete when complete
		false, // internal
		false, // noWait
		nil,   // arguments
	)
	if err != nil {
		return conn, channel, queue, nil, fmt.Errorf("Exchange: %s", err)
	}

	arguments := amqp.Table{
		"x-message-ttl": int32(amqpBackend.getExpiresIn()),
	}
	queue, err = channel.QueueDeclare(
		taskUUID, // name
		false,    // durable
		true,     // delete when unused
		false,    // exclusive
		false,    // no-wait
		arguments,
	)
	if err != nil {
		return conn, channel, queue, nil, fmt.Errorf("Queue Declare: %s", err)
	}

	if err := channel.QueueBind(
		queue.Name,                  // name of the queue
		taskUUID,                    // binding key
		amqpBackend.config.Exchange, // source exchange
		false, // noWait
		nil,   // arguments
	); err != nil {
		return conn, channel, queue, nil, fmt.Errorf("Queue Bind: %s", err)
	}

	confirmsChan := make(chan amqp.Confirmation, 1)

	// Enable publish confirmations
	if err := channel.Confirm(false); err != nil {
		close(confirmsChan)
		return conn, channel, queue, nil, fmt.Errorf("Channel could not be put into confirm mode: %s", err)
	}

	return conn, channel, queue, channel.NotifyPublish(confirmsChan), nil
}
コード例 #19
0
ファイル: amqp.go プロジェクト: gooops/machinery
// Connects to the message queue, opens a channel, declares a queue
func (amqpBackend *AMQPBackend) open(taskUUID string) (*amqp.Connection, *amqp.Channel, amqp.Queue, <-chan amqp.Confirmation, error) {
	var (
		conn    *amqp.Connection
		channel *amqp.Channel
		queue   amqp.Queue
		err     error
	)

	// Connect
	// From amqp docs: DialTLS will use the provided tls.Config when it encounters an amqps:// scheme
	// and will dial a plain connection when it encounters an amqp:// scheme.
	conn, err = amqp.DialTLS(amqpBackend.config.Broker, amqpBackend.config.TLSConfig)
	if err != nil {
		return conn, channel, queue, nil, fmt.Errorf("Dial: %s", err)
	}

	// Open a channel
	channel, err = conn.Channel()
	if err != nil {
		return conn, channel, queue, nil, fmt.Errorf("Channel: %s", err)
	}

	// Declare an exchange
	err = channel.ExchangeDeclare(
		amqpBackend.config.Exchange,     // name of the exchange
		amqpBackend.config.ExchangeType, // type
		true,  // durable
		false, // delete when complete
		false, // internal
		false, // noWait
		nil,   // arguments
	)
	if err != nil {
		return conn, channel, queue, nil, fmt.Errorf("Exchange Declare: %s", err)
	}

	// Declare a queue
	arguments := amqp.Table{
		"x-message-ttl": int32(amqpBackend.getExpiresIn()),
	}
	queue, err = channel.QueueDeclare(
		taskUUID, // name
		false,    // durable
		true,     // delete when unused
		false,    // exclusive
		false,    // no-wait
		arguments,
	)
	if err != nil {
		return conn, channel, queue, nil, fmt.Errorf("Queue Declare: %s", err)
	}

	// Bind the queue
	if err := channel.QueueBind(
		queue.Name,                  // name of the queue
		taskUUID,                    // binding key
		amqpBackend.config.Exchange, // source exchange
		false, // noWait
		nil,   // arguments
	); err != nil {
		return conn, channel, queue, nil, fmt.Errorf("Queue Bind: %s", err)
	}

	// Enable publish confirmations
	if err := channel.Confirm(false); err != nil {
		return conn, channel, queue, nil, fmt.Errorf("Channel could not be put into confirm mode: %s", err)
	}

	return conn, channel, queue, channel.NotifyPublish(make(chan amqp.Confirmation, 1)), nil
}
コード例 #20
0
ファイル: client.go プロジェクト: sideb0ard/Craxx
func clientMain(ch *amqp.Channel) {

	q, err := ch.QueueDeclare(
		"",    // name
		false, // durable
		false, // delete when usused
		true,  // exclusive
		false, // no-wait
		nil,   // arguments
	)
	failOnError(err, "Failed to declare a queue")

	err = ch.QueueBind(
		q.Name, // queue name
		"",     // routing key
		"bpm",  // exchange
		false,
		nil)
	failOnError(err, "Failed to bind a queue")

	msgs, err := ch.Consume(
		q.Name, // queue
		"",     // consumer
		true,   // auto-ack
		false,  // exclusive
		false,  // no-local
		false,  // no-wait
		nil,    // args
	)
	failOnError(err, "Failed to register a consumer")

	for d := range msgs {
		var bm BpmMsg
		err := json.Unmarshal(d.Body, &bm)
		if err != nil {
			fmt.Println("blah", err)
		}
		fmt.Println(bm)
		// if bm.TickCounter%4 == 1 {
		if bm.MicroTick == 1 {
			fmt.Println("KICK Got one Modulo 4!", bm.TickCounter)
			//go playrrr(kick, Soxfilter{})
			//if rand.Intn(10) > 2 {
			go playrrr(kick, Soxfilter{Effect: "pitch", Val: strconv.Itoa(int(math.Pow(float64(bm.TickCounter%1000), 3.0)) % 1000)})
			//} else {
			//	fmt.Println("RANDY MISSS!")
			//}
		}
		//if bm.TickCounter%4 == 0 {
		//	fmt.Println("SNARE Got one Modulo 3!", bm.TickCounter)
		//	//go playrrr(snare, Soxfilter{})
		//	if rand.Intn(10) > 1 {
		//		//go playrrr(snare, Soxfilter{Effect: "pitch", Val: strconv.Itoa(int(math.Pow(float64(bm.TickCounter%1000), 3.0)) % 1000)})
		//		go playrrr(snare, Soxfilter{})
		//	}
		//}
		//if bm.TickCounter%2 == 0 {
		//	fmt.Println("HAT Got one Modulo 1!", bm.TickCounter)
		//	// go playrrr(hat + " pitch " + strconv.Itoa(bm.TickCounter%1000))
		//	if rand.Intn(10) > 4 {
		//		go playrrr(hat, Soxfilter{Effect: "pitch", Val: strconv.Itoa(int(math.Pow(float64(bm.TickCounter%1000), 3.0)) % 1000)})
		//	}
		//}
	}
}
コード例 #21
0
ファイル: amqp.go プロジェクト: denkhaus/machinery
// Connects to the message queue, opens a channel, declares a queue
func (amqpBroker *AMQPBroker) open() (*amqp.Connection, *amqp.Channel, amqp.Queue, <-chan amqp.Confirmation, error) {
	var (
		conn    *amqp.Connection
		channel *amqp.Channel
		queue   amqp.Queue
		err     error
	)

	// Connect
	conn, err = amqp.Dial(amqpBroker.config.Broker)
	if err != nil {
		return conn, channel, queue, nil, fmt.Errorf("Dial: %s", err)
	}

	// Open a channel
	channel, err = conn.Channel()
	if err != nil {
		return conn, channel, queue, nil, fmt.Errorf("Channel: %s", err)
	}

	// Declare an exchange
	if err := channel.ExchangeDeclare(
		amqpBroker.config.Exchange,     // name of the exchange
		amqpBroker.config.ExchangeType, // type
		true,  // durable
		false, // delete when complete
		false, // internal
		false, // noWait
		nil,   // arguments
	); err != nil {
		return conn, channel, queue, nil, fmt.Errorf("Exchange Declare: %s", err)
	}

	// Declare a queue
	queue, err = channel.QueueDeclare(
		amqpBroker.config.DefaultQueue, // name
		true,  // durable
		false, // delete when unused
		false, // exclusive
		false, // no-wait
		nil,   // arguments
	)
	if err != nil {
		return conn, channel, queue, nil, fmt.Errorf("Queue Declare: %s", err)
	}

	// Bind the queue
	if err := channel.QueueBind(
		queue.Name,                   // name of the queue
		amqpBroker.config.BindingKey, // binding key
		amqpBroker.config.Exchange,   // source exchange
		false, // noWait
		nil,   // arguments
	); err != nil {
		return conn, channel, queue, nil, fmt.Errorf("Queue Bind: %s", err)
	}

	// Enable publish confirmations
	if err := channel.Confirm(false); err != nil {
		return conn, channel, queue, nil, fmt.Errorf("Channel could not be put into confirm mode: %s", err)
	}

	return conn, channel, queue, channel.NotifyPublish(make(chan amqp.Confirmation, 1)), nil
}