io.druid.indexing.overlord.autoscaling.ProvisioningUtil Maven / Gradle / Ivy
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* Licensed to Metamarkets Group Inc. (Metamarkets) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Metamarkets 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
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*/
package io.druid.indexing.overlord.autoscaling;
import com.google.common.base.Predicate;
import io.druid.indexing.overlord.ImmutableWorkerInfo;
import io.druid.java.util.common.ISE;
public class ProvisioningUtil
{
public static Predicate createValidWorkerPredicate(
final SimpleWorkerProvisioningConfig config
)
{
return new Predicate()
{
@Override
public boolean apply(ImmutableWorkerInfo worker)
{
final String minVersion = config.getWorkerVersion();
if (minVersion == null) {
throw new ISE("No minVersion found! It should be set in your runtime properties or configuration database.");
}
return worker.isValidVersion(minVersion);
}
};
}
public static Predicate createLazyWorkerPredicate(
final SimpleWorkerProvisioningConfig config
)
{
final Predicate isValidWorker = createValidWorkerPredicate(config);
return new Predicate()
{
@Override
public boolean apply(ImmutableWorkerInfo worker)
{
final boolean itHasBeenAWhile = System.currentTimeMillis() - worker.getLastCompletedTaskTime().getMillis()
>= config.getWorkerIdleTimeout().toStandardDuration().getMillis();
return itHasBeenAWhile || !isValidWorker.apply(worker);
}
};
}
}