org.apache.flink.runtime.io.network.partition.PartitionTrackerFactory Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file 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,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.flink.runtime.io.network.partition;
import org.apache.flink.runtime.clusterframework.types.ResourceID;
import org.apache.flink.runtime.taskexecutor.TaskExecutorGateway;
import java.util.Optional;
/**
* Factory for {@link PartitionTracker}.
*/
@FunctionalInterface
public interface PartitionTrackerFactory {
/**
* Creates a new PartitionTracker.
*
* @param taskExecutorGatewayLookup lookup function to access task executor gateways
* @return created PartitionTracker
*/
PartitionTracker create(TaskExecutorGatewayLookup taskExecutorGatewayLookup);
/**
* Lookup function for {@link TaskExecutorGateway}.
*/
@FunctionalInterface
interface TaskExecutorGatewayLookup {
/**
* Returns a {@link TaskExecutorGateway} corresponding to the given ResourceID.
*
* @param taskExecutorId id of the task executor to look up.
* @return optional task executor gateway
*/
Optional lookup(ResourceID taskExecutorId);
}
}