Improved startup logging and avoid scripts being loaded in start level service thread (#1919)

Signed-off-by: Kai Kreuzer <kai@openhab.org>

bundles/org.openhab.core.automation.module.script.rulesupport/src/main/java/org/openhab/core/automation/module/script/rulesupport/internal/loader/ScriptFileWatcher.java

@@ -301,9 +301,12 @@ public class ScriptFileWatcher extends AbstractWatchService implements ReadyTrac
     @Override
     public void onReadyMarkerAdded(@NonNull ReadyMarker readyMarker) {
         started = true;
-        importResources(new File(pathToWatch));
-        scheduler = Executors.newSingleThreadScheduledExecutor(new NamedThreadFactory("scriptwatcher"));
-        scheduler.scheduleWithFixedDelay(this::checkFiles, RECHECK_INTERVAL, RECHECK_INTERVAL, TimeUnit.SECONDS);
+
+        ScheduledExecutorService localScheduler = Executors
+                .newSingleThreadScheduledExecutor(new NamedThreadFactory("scriptwatcher"));
+        scheduler = localScheduler;
+        localScheduler.submit(() -> importResources(new File(pathToWatch)));
+        localScheduler.scheduleWithFixedDelay(this::checkFiles, RECHECK_INTERVAL, RECHECK_INTERVAL, TimeUnit.SECONDS);
     }
 
     @Override

bundles/org.openhab.core.automation/src/main/java/org/openhab/core/automation/internal/RuleEngineImpl.java

@@ -1440,6 +1440,7 @@ public class RuleEngineImpl implements RuleManager, RegistryChangeListener<Modul
                             Map.of(SystemTriggerHandler.OUT_STARTLEVEL, StartLevelService.STARTLEVEL_RULES)));
             started = true;
             readyService.markReady(MARKER);
+            logger.info("Rule engine started.");
         });
     }
 

bundles/org.openhab.core/src/main/java/org/openhab/core/service/StartLevelService.java

@@ -251,6 +251,7 @@ public class StartLevelService {
         scheduler.submit(() -> {
             StartlevelEvent startlevelEvent = SystemEventFactory.createStartlevelEvent(level);
             eventPublisher.post(startlevelEvent);
+            logger.debug("Reached start level {}", level);
         });
     }
 }