org.apache.flink.runtime.highavailability.HighAvailabilityServicesFactory Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
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* distributed with this work for additional information
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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.highavailability;
import org.apache.flink.configuration.Configuration;
import org.apache.flink.runtime.concurrent.UnsupportedOperationExecutor;
import java.util.concurrent.Executor;
/**
* Factory interface for {@link HighAvailabilityServices}.
*/
public interface HighAvailabilityServicesFactory {
/**
* Creates a {@link HighAvailabilityServices} instance.
*
* @param configuration Flink configuration
* @param executor background task executor
* @return instance of {@link HighAvailabilityServices}
* @throws Exception when HAServices cannot be created
*/
HighAvailabilityServices createHAServices(Configuration configuration, Executor executor) throws Exception;
/**
* Create a {@link ClientHighAvailabilityServices} instance.
*
* @param configuration Flink configuration
* @return instance of {@link ClientHighAvailabilityServices}
* @throws Exception when ClientHAServices cannot be created
*/
default ClientHighAvailabilityServices createClientHAServices(Configuration configuration) throws Exception {
return createHAServices(configuration, UnsupportedOperationExecutor.INSTANCE);
}
}