/**
* Invoke this method to transition the service to the {@link State#FAILED}. The service will
* <b>not be stopped</b> if it is running. Invoke this method when a service has failed critically
* or otherwise cannot be started nor stopped.
*/
protected final void notifyFailed(Throwable cause) {
checkNotNull(cause);
lock.lock();
try {
if (state == State.STARTING) {
startup.setException(cause);
shutdown.setException(new Exception("Service failed to start.", cause));
} else if (state == State.STOPPING) {
shutdown.setException(cause);
} else if (state == State.RUNNING) {
shutdown.setException(new Exception("Service failed while running", cause));
} else if (state == State.NEW || state == State.TERMINATED) {
throw new IllegalStateException("Failed while in state:" + state, cause);
}
failed(state, cause);
} finally {
lock.unlock();
}
}
