heesung-sn commented on code in PR #23903:
URL: https://github.com/apache/pulsar/pull/23903#discussion_r1932651066
##########
managed-ledger/src/main/java/org/apache/bookkeeper/mledger/util/RangeCache.java:
##########
@@ -106,7 +106,39 @@ K getKey() {
return localKey;
}
+ /**
+ * Get the value associated with the key. Returns null if the key does
not match the key.
+ *
+ * @param key the key to match
+ * @return the value associated with the key, or null if the value has
already been recycled or the key does not
+ * match
+ */
V getValue(K key) {
+ return getValueInternal(key, false);
+ }
+
+ /**
+ * Get the value associated with the Map.Entry's key and value. Exact
instance of the key is required to match.
+ * @param entry the entry which contains the key and {@link
EntryWrapper} value to get the value from
+ * @return the value associated with the key, or null if the value has
already been recycled or the key does not
+ * exactly match the same instance
+ */
+ static <K, V> V getValueMatchingMapEntry(Map.Entry<K, EntryWrapper<K,
V>> entry) {
+ return entry.getValue().getValueInternal(entry.getKey(), true);
Review Comment:
any NPE from entry.getValue()?
##########
managed-ledger/src/main/java/org/apache/bookkeeper/mledger/util/RangeCache.java:
##########
@@ -116,7 +148,11 @@ V getValue(K key) {
localValue = this.value;
lock.unlockRead(stamp);
}
- if (localKey != key) {
+ // check that the given key matches the key associated with the
value in the entry
Review Comment:
What happens when this.key and this.value are recycled and have new
key/value after this line? Are we ok to return the old value here?
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