func (a *HostAgent) GetService(serviceID string, response *service.Service) (err error) {
*response = service.Service{}
controlClient, err := NewControlClient(a.master)
if err != nil {
glog.Errorf("Could not start ControlPlane client %v", err)
return nil
}
defer controlClient.Close()
err = controlClient.GetService(serviceID, response)
if response == nil {
*response = service.Service{}
}
if err != nil {
return err
}
getSvc := func(svcID string) (service.Service, error) {
svc := service.Service{}
err := controlClient.GetService(svcID, &svc)
return svc, err
}
findChild := func(svcID, childName string) (service.Service, error) {
svc := service.Service{}
err := controlClient.FindChildService(dao.FindChildRequest{svcID, childName}, &svc)
return svc, err
}
return response.Evaluate(getSvc, findChild, 0)
}
// Use the Context field of the given template to fill in all the templates in
// the Command fields of the template's ServiceDefinitions
func injectContext(s *service.Service, svcState *servicestate.ServiceState, cp dao.ControlPlane) error {
getSvc := func(svcID string) (service.Service, error) {
svc := service.Service{}
err := cp.GetService(svcID, &svc)
return svc, err
}
findChild := func(svcID, childName string) (service.Service, error) {
svc := service.Service{}
err := cp.FindChildService(dao.FindChildRequest{svcID, childName}, &svc)
return svc, err
}
return s.Evaluate(getSvc, findChild, svcState.InstanceID)
}