public long getLastChangedTimeMills(String serviceName) {
        ModelService service = null;
        try {
            service=lookupService(serviceName);
        }catch (ServiceException e){
            LOGGER.debug(String.format("Exception when lookup service by name=[%s], error=[%s]",serviceName,e.getMessage()));
        }
        return service == null ? -1L : service.getModifiedTime().getTime();
    }
public long getLastChangedTimeMills ( String serviceName ) { ModelService service = null ; try { service = lookupService ( serviceName ) ; } catch ( ServiceException e ) { LOGGER . debug ( String . format ( "Exception when lookup service by name=[%s], error=[%s]" , serviceName , e . getMessage ( ) ) ) ; } return service == null ? - 1L : service . getModifiedTime ( ) . getTime ( ) ; }
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