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manager.go
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manager.go
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package api
import (
"github.com/ottemo/commerce/env"
)
// Package global variables
var (
currentRestService InterfaceRestService // currently registered RESTFul service in system
currentSessionService InterfaceSessionService // currently registered session service in system
callbacksOnRestServiceStart = []func() error{} // set of callback function on RESTFul service start
)
// RegisterOnRestServiceStart registers new callback on RESTFul service start
func RegisterOnRestServiceStart(callback func() error) {
callbacksOnRestServiceStart = append(callbacksOnRestServiceStart, callback)
}
// OnRestServiceStart fires RESTFul service start event (callback handling)
func OnRestServiceStart() error {
for _, callback := range callbacksOnRestServiceStart {
if err := callback(); err != nil {
return env.ErrorDispatch(err)
}
}
return nil
}
// RegisterRestService registers RESTFul service in the system
// - will cause error if there are couple candidates for that role
func RegisterRestService(newService InterfaceRestService) error {
if currentRestService == nil {
currentRestService = newService
} else {
return env.ErrorNew(ConstErrorModule, ConstErrorLevel, "9aecae03-4985-4682-b42d-145da67ba74b", "REST service '"+currentRestService.GetName()+"' was already registered")
}
return nil
}
// RegisterSessionService registers session managing service in the system
// - will cause error if there are couple candidates for that role
func RegisterSessionService(newService InterfaceSessionService) error {
if currentSessionService == nil {
currentSessionService = newService
} else {
return env.ErrorNew(ConstErrorModule, ConstErrorLevel, "2a0e046c-75bd-4460-b3c6-843ff761bd59", "Session service '"+currentSessionService.GetName()+"' was already registered")
}
return nil
}
// GetRestService returns currently using RESTFul service implementation
func GetRestService() InterfaceRestService {
return currentRestService
}
// GetSessionService returns currently using session service implementation
func GetSessionService() InterfaceSessionService {
return currentSessionService
}