fix: improved debig logging for getting from cache (#1725)

Author: csviri

Diff for: operator-framework-core/src/main/java/io/javaoperatorsdk/operator/processing/event/source/informer/InformerEventSource.java

@@ -206,10 +206,17 @@ private void propagateEvent(R object) {
   public Set<R> getSecondaryResources(P primary) {
     Set<ResourceID> secondaryIDs;
     if (useSecondaryToPrimaryIndex()) {
+      var primaryResourceID = ResourceID.fromResource(primary);
       secondaryIDs =
-          primaryToSecondaryIndex.getSecondaryResources(ResourceID.fromResource(primary));
+          primaryToSecondaryIndex.getSecondaryResources(primaryResourceID);
+      log.debug(
+          "Using PrimaryToSecondaryIndex to find secondary resources for primary: {}. Found secondary ids: {} ",
+          primaryResourceID, secondaryIDs);
     } else {
       secondaryIDs = primaryToSecondaryMapper.toSecondaryResourceIDs(primary);
+      log.debug(
+          "Using PrimaryToSecondaryMapper to find secondary resources for primary: {}. Found secondary ids: {} ",
+          primary, secondaryIDs);
     }
     return secondaryIDs.stream().map(this::get).flatMap(Optional::stream)
         .collect(Collectors.toSet());

Diff for: operator-framework-core/src/main/java/io/javaoperatorsdk/operator/processing/event/source/informer/ManagedInformerEventSource.java

@@ -107,7 +107,9 @@ public Optional<R> get(ResourceID resourceID) {
     } else {
       log.debug("Resource not found in temporary cache reading it from informer cache," +
           " for Resource ID: {}", resourceID);
-      return cache.get(resourceID);
+      var res = cache.get(resourceID);
+      log.debug("Resource found in cache: {} for id: {}", res.isPresent(), resourceID);
+      return res;
     }
   }