// BrokerFactory creates a new object with brokers.Broker interface
// Currently only AMQP broker is supported
func BrokerFactory(cnf *config.Config) (brokers.Broker, error) {
if strings.HasPrefix(cnf.Broker, "amqp://") {
return brokers.NewAMQPBroker(cnf), nil
}
if strings.HasPrefix(cnf.Broker, "redis://") {
parts := strings.Split(cnf.Broker, "redis://")
if len(parts) != 2 {
return nil, fmt.Errorf(
"Redis broker connection string should be in format redis://host:port, instead got %s",
cnf.Broker,
)
}
var redisHost, redisPassword string
parts = strings.Split(parts[1], "@")
if len(parts) == 2 {
redisHost = parts[1]
redisPassword = parts[0]
} else {
redisHost = parts[0]
}
return brokers.NewRedisBroker(cnf, redisHost, redisPassword), nil
}
if strings.HasPrefix(cnf.Broker, "eager") {
return brokers.NewEagerBroker(), nil
}
return nil, fmt.Errorf("Factory failed with broker URL: %v", cnf.Broker)
}
func TestBrokerFactory(t *testing.T) {
var cnf config.Config
// 1) AMQP broker test
cnf = config.Config{
Broker: "amqp://*****:*****@localhost:5672/",
Exchange: "machinery_exchange",
ExchangeType: "direct",
DefaultQueue: "machinery_tasks",
BindingKey: "machinery_task",
}
actual, err := BrokerFactory(&cnf)
if err != nil {
t.Errorf(err.Error())
}
expected := brokers.NewAMQPBroker(&cnf)
if !reflect.DeepEqual(actual, expected) {
t.Errorf("conn = %v, want %v", actual, expected)
}
// 1) Redis broker test
// with password
cnf = config.Config{
Broker: "redis://password@localhost:6379",
DefaultQueue: "machinery_tasks",
}
actual, err = BrokerFactory(&cnf)
if err != nil {
t.Errorf(err.Error())
}
expected = brokers.NewRedisBroker(&cnf, "localhost:6379", "password")
if !reflect.DeepEqual(actual, expected) {
t.Errorf("conn = %v, want %v", actual, expected)
}
// without password
cnf = config.Config{
Broker: "redis://localhost:6379",
DefaultQueue: "machinery_tasks",
}
actual, err = BrokerFactory(&cnf)
if err != nil {
t.Errorf(err.Error())
}
expected = brokers.NewRedisBroker(&cnf, "localhost:6379", "")
if !reflect.DeepEqual(actual, expected) {
t.Errorf("conn = %v, want %v", actual, expected)
}
}