/
SlotSharingGroup.java
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/
SlotSharingGroup.java
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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.jobmanager.scheduler;
import org.apache.flink.runtime.clusterframework.types.ResourceProfile;
import org.apache.flink.runtime.instance.SlotSharingGroupId;
import org.apache.flink.runtime.jobgraph.JobVertexID;
import java.util.Collections;
import java.util.Set;
import java.util.TreeSet;
import static org.apache.flink.util.Preconditions.checkNotNull;
/**
* A slot sharing units defines which different task (from different job vertices) can be deployed
* together within a slot. This is a soft permission, in contrast to the hard constraint defined by
* a co-location hint.
*/
public class SlotSharingGroup implements java.io.Serializable {
private static final long serialVersionUID = 1L;
private final Set<JobVertexID> ids = new TreeSet<>();
private final SlotSharingGroupId slotSharingGroupId = new SlotSharingGroupId();
// Represents resources of all tasks in the group. Default to be UNKNOWN.
private ResourceProfile resourceProfile = ResourceProfile.UNKNOWN;
// --------------------------------------------------------------------------------------------
public void addVertexToGroup(final JobVertexID id) {
ids.add(checkNotNull(id));
}
public void removeVertexFromGroup(final JobVertexID id) {
ids.remove(checkNotNull(id));
}
public Set<JobVertexID> getJobVertexIds() {
return Collections.unmodifiableSet(ids);
}
public SlotSharingGroupId getSlotSharingGroupId() {
return slotSharingGroupId;
}
public void setResourceProfile(ResourceProfile resourceProfile) {
this.resourceProfile = checkNotNull(resourceProfile);
}
public ResourceProfile getResourceProfile() {
return resourceProfile;
}
// ------------------------------------------------------------------------
// Utilities
// ------------------------------------------------------------------------
@Override
public String toString() {
return "SlotSharingGroup " + this.ids.toString();
}
}