org.apache.flink.runtime.leaderretrieval.LeaderRetrievalDriverFactory Maven / Gradle / Ivy
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* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
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*/
package org.apache.flink.runtime.leaderretrieval;
import org.apache.flink.runtime.rpc.FatalErrorHandler;
/** Factory for creating {@link LeaderRetrievalDriver} with different implementation. */
public interface LeaderRetrievalDriverFactory {
/**
* Create a specific {@link LeaderRetrievalDriver} and start the necessary services. For
* example, NodeCache in Zookeeper, ConfigMap watcher in Kubernetes. They could get the leader
* information change events and need to notify the leader listener by {@link
* LeaderRetrievalEventHandler}.
*
* @param leaderEventHandler handler for the leader retrieval driver to notify leader change
* events.
* @param fatalErrorHandler fatal error handler
* @throws Exception when create a specific {@link LeaderRetrievalDriver} implementation and
* start the necessary services.
*/
LeaderRetrievalDriver createLeaderRetrievalDriver(
LeaderRetrievalEventHandler leaderEventHandler, FatalErrorHandler fatalErrorHandler)
throws Exception;
}