com.hpe.caf.api.autoscale.ScalingAction Maven / Gradle / Ivy
/*
* Copyright 2015-2017 Hewlett Packard Enterprise Development LP.
*
* 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.hpe.caf.api.autoscale;
import java.util.Objects;
/**
* A representation of a scaling request to be handled by the autoscaler.
*/
public final class ScalingAction
{
private final ScalingOperation operation;
private final int amount;
/**
* Perform no scaling.
*/
public static final ScalingAction NO_ACTION = new ScalingAction(ScalingOperation.NONE, 0);
/**
* Scale up by one instance.
*/
public static final ScalingAction SCALE_UP = new ScalingAction(ScalingOperation.SCALE_UP, 1);
/**
* Scale down by one instance.
*/
public static final ScalingAction SCALE_DOWN = new ScalingAction(ScalingOperation.SCALE_DOWN, 1);
public ScalingAction(final ScalingOperation scalingOperation, final int amount)
{
this.operation = Objects.requireNonNull(scalingOperation);
this.amount = amount;
}
/**
* @return the operation requested
*/
public ScalingOperation getOperation()
{
return operation;
}
/**
* @return the amount of instances requested to scale up or down by
*/
public int getAmount()
{
return amount;
}
}