// SendChord triggers a group of parallel tasks with a callback
func (server *Server) SendChord(chord *Chord) (*backends.ChordAsyncResult, error) {
_, err := server.SendGroup(chord.Group)
if err != nil {
return nil, err
}
return backends.NewChordAsyncResult(
chord.Group.Tasks,
chord.Callback,
server.backend,
), nil
}
// SendChord triggers a group of parallel tasks with a callback
func (server *Server) SendChord(chord *Chord) (*backends.ChordAsyncResult, error) {
// Set initial task states to PENDING
for _, signature := range chord.Group.Tasks {
if err := server.backend.SetStatePending(signature); err != nil {
return nil, fmt.Errorf("Set State Pending: %v", err)
}
}
for _, signature := range chord.Group.Tasks {
if err := server.broker.Publish(signature); err != nil {
return nil, fmt.Errorf("Publish Message: %v", err)
}
}
return backends.NewChordAsyncResult(chord.Group.Tasks, chord.Callback, server.backend), nil
}
