merlimat commented on a change in pull request #12896:
URL: https://github.com/apache/pulsar/pull/12896#discussion_r753344157
##########
File path:
pulsar-metadata/src/test/java/org/apache/pulsar/metadata/MetadataCacheTest.java
##########
@@ -331,6 +331,7 @@ public void insertionOutsideCacheWithGenericType(String
provider, Supplier<Strin
});
String key1 = newKey();
+ objCache.get(key1).join();
Review comment:
This is forcing the key to be in the cache, but the test was expressly
trying to check the condition in which it was not.
##########
File path:
pulsar-metadata/src/main/java/org/apache/pulsar/metadata/api/MetadataCache.java
##########
@@ -155,4 +155,12 @@
* @param path the path of the object in the metadata store
*/
void refresh(String path);
+
+
+ /**
+ * Check if the value of this path is already in cache.
+ * @param path the path of the object in the metadata store
+ * @return true if the path exists.
+ */
+ boolean existsInCache(String path);
Review comment:
I wouldn't add a new method in the API that we only are going to be
using internally.
Two solutions:
1. There is already `MetadataCache.getIfCached()`
2. `MetadaCache.refresh()` implementation should take care of it internally.
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