micro/broker/noop.go
Vasiliy Tolstov 827d467077 micro: rewrite options to support multiple building blocks
Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
2021-01-29 13:17:32 +03:00

82 lines
1.7 KiB
Go

package broker
import "context"
type noopBroker struct {
opts Options
}
type noopSubscriber struct {
topic string
opts SubscribeOptions
}
// NewBroker returns new noop broker
func NewBroker(opts ...Option) Broker {
return &noopBroker{opts: NewOptions(opts...)}
}
func (n *noopBroker) Name() string {
return n.opts.Name
}
// Init initialize broker
func (n *noopBroker) Init(opts ...Option) error {
for _, o := range opts {
o(&n.opts)
}
return nil
}
// Options returns broker Options
func (n *noopBroker) Options() Options {
return n.opts
}
// Address returns broker address
func (n *noopBroker) Address() string {
return ""
}
// Connect connects to broker
func (n *noopBroker) Connect(ctx context.Context) error {
return nil
}
// Disconnect disconnects from broker
func (n *noopBroker) Disconnect(ctx context.Context) error {
return nil
}
// Publish publishes message to broker
func (n *noopBroker) Publish(ctx context.Context, topic string, m *Message, opts ...PublishOption) error {
return nil
}
// Subscribe subscribes to broker topic
func (n *noopBroker) Subscribe(ctx context.Context, topic string, h Handler, opts ...SubscribeOption) (Subscriber, error) {
options := NewSubscribeOptions(opts...)
return &noopSubscriber{topic: topic, opts: options}, nil
}
// String return broker string representation
func (n *noopBroker) String() string {
return "noop"
}
// Options returns subscriber options
func (n *noopSubscriber) Options() SubscribeOptions {
return n.opts
}
// TOpic returns subscriber topic
func (n *noopSubscriber) Topic() string {
return n.topic
}
// Unsubscribe unsbscribes from broker topic
func (n *noopSubscriber) Unsubscribe(ctx context.Context) error {
return nil
}