/
managed.go
88 lines (67 loc) · 1.66 KB
/
managed.go
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package managed
import (
"fmt"
"github.com/project-flogo/core/support/log"
)
// Managed is an interface that is implemented by an object that needs to be
// managed via start/stop
type Managed interface {
// Start starts the managed object
Start() error
// Stop stops the manged object
Stop() error
}
// start starts a "Managed" object
func start(managed Managed) (err error) {
defer func() {
if r := recover(); r != nil {
if _, ok := r.(error); !ok {
err = fmt.Errorf("%v", r)
} else {
err = r.(error)
}
}
}()
return managed.Start()
}
// stop stops a "Managed" object
func stop(managed Managed) (err error) {
defer func() {
if r := recover(); r != nil {
if _, ok := r.(error); !ok {
err = fmt.Errorf("%v", r)
} else {
err = r.(error)
}
}
}()
return managed.Stop()
}
// Start starts a Managed object, handles panics and logs details
func Start(name string, managed Managed) error {
log.RootLogger().Debugf("%s: Starting...", name)
err := start(managed)
if err != nil {
log.RootLogger().Errorf("%s: Error Starting", name)
return err
}
log.RootLogger().Infof("%s: Started", name)
return nil
}
// Stop stops a Managed object, handles panics and logs details
func Stop(name string, managed Managed) error {
log.RootLogger().Debugf("%s: Stopping...", name)
err := stop(managed)
if err != nil {
log.RootLogger().Errorf("Error stopping '%s': %s", name, err.Error())
return err
}
log.RootLogger().Infof("%s: Stopped", name)
return nil
}
// Initializable is an interface that is implemented by an object that needs to be
// initialized
type Initializable interface {
// Initializes the object
Init() error
}