narendly commented on a change in pull request #745: Add RealmAwareZkClient and
RealmAwareZkClientFactory interfaces
URL: https://github.com/apache/helix/pull/745#discussion_r379065061
##########
File path:
zookeeper-api/src/main/java/org/apache/helix/zookeeper/api/client/HelixZkClient.java
##########
@@ -19,8 +19,178 @@
* under the License.
*/
+import org.apache.helix.zookeeper.zkclient.serialize.BasicZkSerializer;
+import org.apache.helix.zookeeper.zkclient.serialize.PathBasedZkSerializer;
+import org.apache.helix.zookeeper.zkclient.serialize.SerializableSerializer;
+import org.apache.helix.zookeeper.zkclient.serialize.ZkSerializer;
+
+
/**
+ * Deprecated - please use RealmAwareZkClient instead.
+ *
* HelixZkClient interface that follows the supported API structure of
RealmAwareZkClient.
*/
+@Deprecated
public interface HelixZkClient extends RealmAwareZkClient {
+
+ /**
+ * Deprecated - please use RealmAwareZkClient and
RealmAwareZkConnectionConfig instead.
+ *
+ * Configuration for creating a new ZkConnection.
+ */
+ @Deprecated
+ class ZkConnectionConfig {
+ // Connection configs
+ private final String _zkServers;
+ private int _sessionTimeout = HelixZkClient.DEFAULT_SESSION_TIMEOUT;
+
+ public ZkConnectionConfig(String zkServers) {
+ _zkServers = zkServers;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (obj == this) {
+ return true;
+ }
+ if (!(obj instanceof HelixZkClient.ZkConnectionConfig)) {
+ return false;
+ }
+ HelixZkClient.ZkConnectionConfig configObj =
(HelixZkClient.ZkConnectionConfig) obj;
+ return (_zkServers == null && configObj._zkServers == null || _zkServers
!= null && _zkServers
+ .equals(configObj._zkServers)) && _sessionTimeout ==
configObj._sessionTimeout;
+ }
+
+ @Override
+ public int hashCode() {
+ return _sessionTimeout * 31 + _zkServers.hashCode();
+ }
+
+ @Override
+ public String toString() {
+ return (_zkServers + "_" + _sessionTimeout).replaceAll("[\\W]", "_");
+ }
+
+ public HelixZkClient.ZkConnectionConfig setSessionTimeout(Integer
sessionTimeout) {
+ this._sessionTimeout = sessionTimeout;
+ return this;
+ }
+
+ public String getZkServers() {
+ return _zkServers;
+ }
+
+ public int getSessionTimeout() {
+ return _sessionTimeout;
+ }
+ }
+
+ /**
+ * Deprecated - please use RealmAwareZkClient and RealmAwareZkClientConfig
instead.
+ *
+ * Configuration for creating a new HelixZkClient with serializer and
monitor.
+ */
+ @Deprecated
+ class ZkClientConfig {
Review comment:
@kaisun2000
I tried that but that is going to break backward-compatibility because of
different return types in the setter methods.
To illustrate:
`public ZkClientConfig setZkSerializer(PathBasedZkSerializer zkSerializer)`
is what we have in HelixZkClient. But if this class extended
RealmAwareZkClientConfig, then it will be returning an instance of
RealmAwareZkClientConfig, which would break the existing methods in Shared and
DedicatedZkClientFactories.
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