com.netflix.fenzo.ScaleDownAction Maven / Gradle / Ivy
/*
* Copyright 2015 Netflix, Inc.
*
* Licensed 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 com.netflix.fenzo;
import java.util.Collection;
/**
* An autoscale action that indicates an autoscale group is to be scaled down.
*/
public class ScaleDownAction implements AutoScaleAction {
private final String ruleName;
private final Collection hosts;
ScaleDownAction(String ruleName, Collection hosts) {
this.ruleName = ruleName;
this.hosts = hosts;
// ToDo need to ensure those hosts' offers don't get used
}
/**
* Get the name of the autoscale rule that triggered the scale down action.
*
* @return the name of the autoscale rule.
*/
@Override
public String getRuleName() {
return ruleName;
}
/**
* Returns an indication of whether the autoscale action is to scale up or to scale down - in this case,
* down.
*
* @return {@link AutoScaleAction.Type#Down Down}
*/
@Override
public Type getType() {
return Type.Down;
}
/**
* Get the hostnames to unqueueTask from the cluster during the scale down action.
*
* @return a Collection of host names.
*/
public Collection getHosts() {
return hosts;
}
}