junkaixue commented on code in PR #2137:
URL: https://github.com/apache/helix/pull/2137#discussion_r888473784
##########
helix-core/src/test/java/org/apache/helix/manager/zk/TestHelixManagerFactory.java:
##########
@@ -0,0 +1,10 @@
+package org.apache.helix.manager.zk;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class TestHelixManagerFactory {
+ private static Logger LOG =
LoggerFactory.getLogger(TestHelixManagerFactory.class);
+
Review Comment:
Where are the test?
##########
helix-core/src/main/java/org/apache/helix/manager/zk/ZKHelixManager.java:
##########
@@ -1560,30 +1560,47 @@ private RealmAwareZkClient
resolveZkClient(HelixZkClientFactory zkClientFactory,
}
/**
- * Check that not both zkAddress and ZkConnectionConfig are set.
- * If zkAddress is not given and ZkConnectionConfig is given, check that
ZkConnectionConfig has
- * a ZK path sharding key set because HelixManager must work on single-realm
mode.
+ * Check that one and only one among zkAddress, ZkConnectionConfig and
RealmAwareZkConnectionConfig are set.
+ * If zkAddress is not given directly or through ZkConnectionConfig and
RealmAwareZkConnectionConfig
+ * is given, check that RealmAwareZkConnectionConfig has a ZK path sharding
key set because
+ * HelixManager must work on single-realm mode.
* @param zkAddress
* @param helixManagerProperty
*/
private void validateZkConnectionSettings(String zkAddress,
HelixManagerProperty helixManagerProperty) {
- if (helixManagerProperty != null &&
helixManagerProperty.getZkConnectionConfig() != null) {
- if (zkAddress != null) {
- throw new HelixException(
- "ZKHelixManager: cannot have both ZkAddress and ZkConnectionConfig
set!");
- }
+ boolean hasRealmAwareZkConnectionConfig = helixManagerProperty != null
+ && helixManagerProperty.getRealmAwareZkConnectionConfig() != null;
+ boolean hasZkConnectionConfig =
+ helixManagerProperty != null &&
helixManagerProperty.getZkConnectionConfig() != null;
+ if (Stream.of(zkAddress != null, hasRealmAwareZkConnectionConfig,
hasZkConnectionConfig)
+ .filter(condition -> condition).count() != 1) {
+ throw new HelixException(
+ "ZKHelixManager: One and only one of ZkAddress,
RealmAwareZkConnectionConfig and "
+ + "ZkConnectionConfig should be set!");
+ }
+
+ if (hasRealmAwareZkConnectionConfig) {
RealmAwareZkClient.RealmAwareZkConnectionConfig connectionConfig =
- helixManagerProperty.getZkConnectionConfig();
+ helixManagerProperty.getRealmAwareZkConnectionConfig();
if (connectionConfig.getZkRealmShardingKey() == null || connectionConfig
.getZkRealmShardingKey().isEmpty()) {
throw new HelixException(
"ZKHelixManager::ZK path sharding key must be set for
ZKHelixManager! ZKHelixManager "
+ "is only available on single-realm mode.");
}
_realmAwareZkConnectionConfig = connectionConfig;
+ } else if (hasZkConnectionConfig) {
Review Comment:
Can these two be coexist? Or it is either or relationship.
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