org.apache.flink.runtime.taskexecutor.SlotReport 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.taskexecutor;
import java.io.Serializable;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import static org.apache.flink.util.Preconditions.checkNotNull;
/**
* A report about the current status of all slots of the TaskExecutor, describing
* which slots are available and allocated, and what jobs (JobManagers) the allocated slots
* have been allocated to.
*/
public class SlotReport implements Serializable, Iterable {
private static final long serialVersionUID = -3150175198722481689L;
/** The slots status of the TaskManager. */
private final Collection slotsStatus;
public SlotReport() {
this(Collections.emptyList());
}
public SlotReport(SlotStatus slotStatus) {
this(Collections.singletonList(slotStatus));
}
public SlotReport(final Collection slotsStatus) {
this.slotsStatus = checkNotNull(slotsStatus);
}
@Override
public Iterator iterator() {
return slotsStatus.iterator();
}
@Override
public String toString() {
return "SlotReport{" +
"slotsStatus=" + slotsStatus +
'}';
}
}