lhotari commented on a change in pull request #10254:
URL: https://github.com/apache/pulsar/pull/10254#discussion_r648510777
##########
File path:
pulsar-common/src/main/java/org/apache/pulsar/common/events/EventsTopicNames.java
##########
@@ -18,29 +18,34 @@
*/
package org.apache.pulsar.common.events;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
+
/**
- * System topic name for the event type.
+ * System topic names for each {@link EventType}.
*/
public class EventsTopicNames {
+ /**
+ * All event topics are system topics, and currently, they all have this
prefix.
+ */
+ private static final String SYSTEM_TOPIC_LOCAL_NAME_PREFIX = "__";
/**
* Local topic name for the namespace events.
*/
- public static final String NAMESPACE_EVENTS_LOCAL_NAME = "__change_events";
+ public static final String NAMESPACE_EVENTS_LOCAL_NAME =
SYSTEM_TOPIC_LOCAL_NAME_PREFIX + "change_events";
/**
* Local topic name for the namespace events.
*/
- public static final String TRANSACTION_BUFFER_SNAPSHOT =
"__transaction_buffer_snapshot";
+ public static final String TRANSACTION_BUFFER_SNAPSHOT =
+ SYSTEM_TOPIC_LOCAL_NAME_PREFIX + "transaction_buffer_snapshot";
- public static boolean checkTopicIsEventsNames(String topicName) {
- if (topicName.endsWith(NAMESPACE_EVENTS_LOCAL_NAME)) {
- return true;
- } else if (topicName.endsWith(TRANSACTION_BUFFER_SNAPSHOT)) {
- return true;
- } else {
- return false;
- }
- }
+ /**
+ * The set of all events topic names.
+ */
+ public static final Set<String> EVENTS_TOPIC_NAMES =
+ new HashSet<>(Arrays.asList(NAMESPACE_EVENTS_LOCAL_NAME,
TRANSACTION_BUFFER_SNAPSHOT));
Review comment:
this should be wrapped with `Collections.unmodifiableSet` to make the
`Set` immutable.
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