org.apache.flink.runtime.executiongraph.failover.flip1.FailoverRegion Maven / Gradle / Ivy
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* 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.executiongraph.failover.flip1;
import org.apache.flink.runtime.scheduler.strategy.ExecutionVertexID;
import java.util.HashSet;
import java.util.Set;
import static org.apache.flink.util.Preconditions.checkNotNull;
/**
* FailoverRegion is a subset of all the vertices in the job topology.
*/
public class FailoverRegion {
/** All vertex IDs in this region. */
private final Set executionVertexIDs;
/** All vertices in this region. */
private final Set executionVertices;
/**
* Creates a new failover region containing a set of vertices.
*
* @param executionVertices to be contained in this region
*/
public FailoverRegion(Set executionVertices) {
this.executionVertices = checkNotNull(executionVertices);
this.executionVertexIDs = new HashSet<>();
executionVertices.forEach(v -> this.executionVertexIDs.add(v.getExecutionVertexID()));
}
/**
* Returns IDs of all vertices in this region.
*
* @return IDs of all vertices in this region
*/
public Set getAllExecutionVertexIDs() {
return executionVertexIDs;
}
/**
* Returns all vertices in this region.
*
* @return all vertices in this region
*/
public Set getAllExecutionVertices() {
return executionVertices;
}
}