Suvrat1629 commented on code in PR #3474:
URL: https://github.com/apache/logging-log4j2/pull/3474#discussion_r1965743880
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log4j-core/src/main/java/org/apache/logging/log4j/core/util/internal/InternalLoggerRegistry.java:
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@@ -53,23 +57,48 @@ public final class InternalLoggerRegistry {
new WeakHashMap<>();
private final ReadWriteLock lock = new ReentrantReadWriteLock();
-
private final Lock readLock = lock.readLock();
-
private final Lock writeLock = lock.writeLock();
+ // ReferenceQueue to track stale WeakReferences
+ private final ReferenceQueue<Logger> staleLoggerRefs = new
ReferenceQueue<>();
+
public InternalLoggerRegistry() {}
+ /**
+ * Expunges stale logger references from the registry.
+ */
+ private void expungeStaleEntries() {
+ Reference<? extends Logger> loggerRef;
+ while ((loggerRef = staleLoggerRefs.poll()) != null) {
+ removeLogger(loggerRef);
+ }
+ }
+
+ /**
+ * Removes a logger from the registry.
+ */
+ private void removeLogger(Reference<? extends Logger> loggerRef) {
+ writeLock.lock();
+ try {
+ loggerRefByNameByMessageFactory.values().forEach(map ->
map.values().removeIf(ref -> ref == loggerRef));
+ } finally {
+ writeLock.unlock();
+ }
Review Comment:
Well you are right this is a bit inefficient. I have made some changes to
the `removeLogger`, please take a look if it fits fine.
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