82 lines
1.6 KiB
Go
82 lines
1.6 KiB
Go
package micro
|
|
|
|
import (
|
|
"context"
|
|
"time"
|
|
|
|
"github.com/unistack-org/micro/v3/server"
|
|
)
|
|
|
|
type function struct {
|
|
cancel context.CancelFunc
|
|
Service
|
|
}
|
|
|
|
func fnHandlerWrapper(f Function) server.HandlerWrapper {
|
|
return func(h server.HandlerFunc) server.HandlerFunc {
|
|
return func(ctx context.Context, req server.Request, rsp interface{}) error {
|
|
defer f.Done()
|
|
return h(ctx, req, rsp)
|
|
}
|
|
}
|
|
}
|
|
|
|
func fnSubWrapper(f Function) server.SubscriberWrapper {
|
|
return func(s server.SubscriberFunc) server.SubscriberFunc {
|
|
return func(ctx context.Context, msg server.Message) error {
|
|
defer f.Done()
|
|
return s(ctx, msg)
|
|
}
|
|
}
|
|
}
|
|
|
|
func newFunction(opts ...Option) Function {
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
|
|
// force ttl/interval
|
|
fopts := []Option{
|
|
RegisterTTL(time.Minute),
|
|
RegisterInterval(time.Second * 30),
|
|
}
|
|
|
|
// prepend to opts
|
|
fopts = append(fopts, opts...)
|
|
|
|
// make context the last thing
|
|
fopts = append(fopts, Context(ctx))
|
|
|
|
service := newService(fopts...)
|
|
|
|
fn := &function{
|
|
cancel: cancel,
|
|
Service: service,
|
|
}
|
|
|
|
service.Server().Init(
|
|
// ensure the service waits for requests to finish
|
|
server.Wait(nil),
|
|
// wrap handlers and subscribers to finish execution
|
|
server.WrapHandler(fnHandlerWrapper(fn)),
|
|
server.WrapSubscriber(fnSubWrapper(fn)),
|
|
)
|
|
|
|
return fn
|
|
}
|
|
|
|
func (f *function) Done() error {
|
|
f.cancel()
|
|
return nil
|
|
}
|
|
|
|
func (f *function) Handle(v interface{}) error {
|
|
return f.Service.Server().Handle(
|
|
f.Service.Server().NewHandler(v),
|
|
)
|
|
}
|
|
|
|
func (f *function) Subscribe(topic string, v interface{}) error {
|
|
return f.Service.Server().Subscribe(
|
|
f.Service.Server().NewSubscriber(topic, v),
|
|
)
|
|
}
|