/**
* Create a services.
*
* <p>The built in services are initialized.
*
* @throws ServiceException thrown if any of the built in services could not initialize.
*/
public Services() throws ServiceException {
if (SERVICES != null) {
XLog log = XLog.getLog(getClass());
log.warn(XLog.OPS, "Previous services singleton active, destroying it");
SERVICES.destroy();
SERVICES = null;
}
setServiceInternal(XLogService.class, false);
setServiceInternal(ConfigurationService.class, true);
conf = get(ConfigurationService.class).getConf();
systemId = conf.get(CONF_SYSTEM_ID, ("oozie-" + System.getProperty("user.name")));
if (systemId.length() > MAX_SYSTEM_ID_LEN) {
systemId = systemId.substring(0, MAX_SYSTEM_ID_LEN);
XLog.getLog(getClass())
.warn(
"System ID [{0}] exceeds maximun lenght [{1}], trimming",
systemId, MAX_SYSTEM_ID_LEN);
}
setSystemMode(SYSTEM_MODE.valueOf(conf.get(CONF_SYSTEM_MODE, SYSTEM_MODE.NORMAL.toString())));
runtimeDir = createRuntimeDir();
}
/**
* Set a service programmatically.
*
* <p>The service will be initialized by the services.
*
* <p>If a service is already defined with the same public interface it will be destroyed.
*
* @param klass service klass
* @throws ServiceException if the service could not be initialized, at this point all services
* have been destroyed.
*/
public void setService(Class<? extends Service> klass) throws ServiceException {
setServiceInternal(klass, true);
}