bsmd: avoid processing alarm lifecycle events when no rules are defined

"Bsmd-Thread" #324 prio=5 os_prio=0 tid=0x00007f16500f6000 nid=0xa3d runnable [0x00007f156a4b3000]
   java.lang.Thread.State: RUNNABLE
	at java.net.SocketInputStream.socketRead0(Native Method)
	at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
	at java.net.SocketInputStream.read(SocketInputStream.java:171)
	at java.net.SocketInputStream.read(SocketInputStream.java:141)
	at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:143)
	at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:112)
	at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:70)
	at org.postgresql.core.PGStream.receiveChar(PGStream.java:283)
	at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1919)
	at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:291)
	- locked <0x00000005f3a05ef0> (a org.postgresql.core.v3.QueryExecutorImpl)
	at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:432)
	at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:358)
	at org.postgresql.jdbc.PgPreparedStatement.executeWithFlags(PgPreparedStatement.java:171)
	at org.postgresql.jdbc.PgPreparedStatement.executeQuery(PgPreparedStatement.java:119)
	at com.zaxxer.hikari.pool.ProxyPreparedStatement.executeQuery(ProxyPreparedStatement.java:52)
	at com.zaxxer.hikari.pool.HikariProxyPreparedStatement.executeQuery(HikariProxyPreparedStatement.java)
	at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:208)
	at org.hibernate.loader.Loader.getResultSet(Loader.java:1953)
	at org.hibernate.loader.Loader.doQuery(Loader.java:802)
	at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:274)
	at org.hibernate.loader.Loader.loadEntity(Loader.java:2037)
	at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:86)
	at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:76)
	at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:3294)
	at org.hibernate.event.def.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:496)
	at org.hibernate.event.def.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:477)
	at org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:227)
	at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:285)
	at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:152)
	at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:1090)
	at org.hibernate.impl.SessionImpl.get(SessionImpl.java:1005)
	at org.hibernate.impl.SessionImpl.get(SessionImpl.java:998)
	at org.springframework.orm.hibernate3.HibernateTemplate$1.doInHibernate(HibernateTemplate.java:526)
	at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:410)
	at org.springframework.orm.hibernate3.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:378)
	at org.springframework.orm.hibernate3.HibernateTemplate.get(HibernateTemplate.java:518)
	at org.springframework.orm.hibernate3.HibernateTemplate.get(HibernateTemplate.java:511)
	at org.opennms.netmgt.dao.hibernate.AbstractDaoHibernate.get(AbstractDaoHibernate.java:351)
	at org.opennms.netmgt.bsm.daemon.Bsmd$3.doInTransactionWithoutResult(Bsmd.java:260)
	at org.springframework.transaction.support.TransactionCallbackWithoutResult.doInTransaction(TransactionCallbackWithoutResult.java:34)
	at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:133)
	at org.opennms.netmgt.bsm.daemon.Bsmd.handleAlarmCreatedOrUpdated(Bsmd.java:257)
	at org.opennms.netmgt.bsm.daemon.Bsmd.handleAlarmLifecycleEvents(Bsmd.java:252)
	at sun.reflect.GeneratedMethodAccessor299.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.opennms.netmgt.events.api.AnnotationBasedEventListenerAdapter.processEvent(AnnotationBasedEventListenerAdapter.java:220)
	at org.opennms.netmgt.events.api.AnnotationBasedEventListenerAdapter$1.run(AnnotationBasedEventListenerAdapter.java:181)
	at org.opennms.core.logging.Logging.withPrefix(Logging.java:71)
	at org.opennms.netmgt.events.api.AnnotationBasedEventListenerAdapter.onEvent(AnnotationBasedEventListenerAdapter.java:174)
	at org.opennms.netmgt.eventd.EventIpcManagerDefaultImpl$EventListenerExecutor$2.run(EventIpcManagerDefaultImpl.java:183)
	at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1626)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.opennms.core.concurrent.LogPreservingThreadFactory$2.run(LogPreservingThreadFactory.java:106)
	at java.lang.Thread.run(Thread.java:748)