namesystem.checkSuperuserPrivilege();
if (!haEnabled) {
throw new ServiceFailedException("HA for namenode is not enabled");
}
if (state == null) {
return new HAServiceStatus(HAServiceState.INITIALIZING);
}
HAServiceState retState = state.getServiceState();
HAServiceStatus ret = new HAServiceStatus(retState);
if (retState == HAServiceState.STANDBY) {
String safemodeTip = namesystem.getSafeModeTip();
if (!safemodeTip.isEmpty()) {
ret.setNotReadyToBecomeActive(
"The NameNode is in safemode. " +
safemodeTip);
} else {
ret.setReadyToBecomeActive();
}
} else if (retState == HAServiceState.ACTIVE) {
ret.setReadyToBecomeActive();
} else {
ret.setNotReadyToBecomeActive("State is " + state);
}
return ret;
}