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/*
 * CloudSim Plus: A modern, highly-extensible and easier-to-use Framework for
 * Modeling and Simulation of Cloud Computing Infrastructures and Services.
 * http://cloudsimplus.org
 *
 *     Copyright (C) 2015-2021 Universidade da Beira Interior (UBI, Portugal) and
 *     the Instituto Federal de Educação Ciência e Tecnologia do Tocantins (IFTO, Brazil).
 *
 *     This file is part of CloudSim Plus.
 *
 *     CloudSim Plus is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 *
 *     CloudSim Plus is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU General Public License for more details.
 *
 *     You should have received a copy of the GNU General Public License
 *     along with CloudSim Plus. If not, see .
 */
package org.cloudsimplus.resources;

import org.cloudsimplus.vms.Vm;

/**
 * Represents the RAM resource of a VM in Megabytes.
 * Such a class allows managing the RAM capacity and allocation.
 *
 * @author Manoel Campos da Silva Filho
 * @since CloudSim Plus 8.3.0
 */
public final class VmRam extends Ram {
    private final Vm vm;

    /**
     * Creates a RAM resource.
     *
     * @param capacity the RAM capacity in Megabytes
     */
    public VmRam(final Vm vm, final long capacity) {
        super(capacity);
        this.vm = vm;
    }

    @Override
    public double getPercentUtilization() {
        return vm.isStartingUp() ? vm.getBootModel().getRamPercentUtilization() : super.getPercentUtilization();
    }
}