micro/broker/options.go
2015-12-23 20:05:47 +00:00

58 lines
1.1 KiB
Go

package broker
type Options struct{}
type PublishOptions struct{}
type SubscribeOptions struct {
// AutoAck defaults to true
AutoAck bool
// NumHandlers defaults to 1
NumHandlers int
// Subscribers with the same queue name
// will create a shared subscription where each
// receives a subset of messages.
Queue string
}
type Option func(*Options)
type PublishOption func(*PublishOptions)
type SubscribeOption func(*SubscribeOptions)
// DisableAutoAck will disable auto acking of messages
// after they have been handled.
func DisableAutoAck() SubscribeOption {
return func(o *SubscribeOptions) {
o.AutoAck = false
}
}
// NumHandlers sets the number of concurrent handlers to create
// for a subscriber.
func NumHandlers(i int) SubscribeOption {
return func(o *SubscribeOptions) {
o.NumHandlers = i
}
}
func QueueName(name string) SubscribeOption {
return func(o *SubscribeOptions) {
o.Queue = name
}
}
func newSubscribeOptions(opts ...SubscribeOption) SubscribeOptions {
opt := SubscribeOptions{
AutoAck: true,
NumHandlers: 1,
}
for _, o := range opts {
o(&opt)
}
return opt
}