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src/org/cloudbus/cloudsim/provisioners/PeProvisioner.java

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+/*
+ * Title:        CloudSim Toolkit
+ * Description:  CloudSim (Cloud Simulation) Toolkit for Modeling and Simulation of Clouds
+ * Licence:      GPL - http://www.gnu.org/copyleft/gpl.html
+ *
+ * Copyright (c) 2009-2012, The University of Melbourne, Australia
+ */
+
+package org.cloudbus.cloudsim.provisioners;
+
+import java.util.List;
+
+import org.cloudbus.cloudsim.Vm;
+
+/**
+ * The Class PeProvisioner.
+ * 
+ * @author Anton Beloglazov
+ * @since CloudSim Toolkit 2.0
+ */
+public abstract class PeProvisioner {
+
+	/** The mips. */
+	private double mips;
+
+	/** The available mips. */
+	private double availableMips;
+
+	/**
+	 * Creates the new PeProvisioner.
+	 * 
+	 * @param mips overall amount of MIPS available in the Pe
+	 * 
+	 * @pre mips>=0
+	 * @post $none
+	 */
+	public PeProvisioner(double mips) {
+		setMips(mips);
+		setAvailableMips(mips);
+	}
+
+	/**
+	 * Allocates MIPS for a given VM.
+	 * 
+	 * @param vm virtual machine for which the MIPS are being allocated
+	 * @param mips the mips
+	 * 
+	 * @return $true if the MIPS could be allocated; $false otherwise
+	 * 
+	 * @pre $none
+	 * @post $none
+	 */
+	public abstract boolean allocateMipsForVm(Vm vm, double mips);
+
+	/**
+	 * Allocates MIPS for a given VM.
+	 * 
+	 * @param vmUid the vm uid
+	 * @param mips the mips
+	 * 
+	 * @return $true if the MIPS could be allocated; $false otherwise
+	 * 
+	 * @pre $none
+	 * @post $none
+	 */
+	public abstract boolean allocateMipsForVm(String vmUid, double mips);
+
+	/**
+	 * Allocates MIPS for a given VM.
+	 * 
+	 * @param vm virtual machine for which the MIPS are being allocated
+	 * @param mips the mips for each virtual Pe
+	 * 
+	 * @return $true if the MIPS could be allocated; $false otherwise
+	 * 
+	 * @pre $none
+	 * @post $none
+	 */
+	public abstract boolean allocateMipsForVm(Vm vm, List<Double> mips);
+
+	/**
+	 * Gets allocated MIPS for a given VM.
+	 * 
+	 * @param vm virtual machine for which the MIPS are being allocated
+	 * 
+	 * @return array of allocated MIPS
+	 * 
+	 * @pre $none
+	 * @post $none
+	 */
+	public abstract List<Double> getAllocatedMipsForVm(Vm vm);
+
+	/**
+	 * Gets total allocated MIPS for a given VM for all PEs.
+	 * 
+	 * @param vm virtual machine for which the MIPS are being allocated
+	 * 
+	 * @return total allocated MIPS
+	 * 
+	 * @pre $none
+	 * @post $none
+	 */
+	public abstract double getTotalAllocatedMipsForVm(Vm vm);
+
+	/**
+	 * Gets allocated MIPS for a given VM for a given virtual Pe.
+	 * 
+	 * @param vm virtual machine for which the MIPS are being allocated
+	 * @param peId the pe id
+	 * 
+	 * @return allocated MIPS
+	 * 
+	 * @pre $none
+	 * @post $none
+	 */
+	public abstract double getAllocatedMipsForVmByVirtualPeId(Vm vm, int peId);
+
+	/**
+	 * Releases MIPS used by a VM.
+	 * 
+	 * @param vm the vm
+	 * 
+	 * @pre $none
+	 * @post none
+	 */
+	public abstract void deallocateMipsForVm(Vm vm);
+
+	/**
+	 * Releases MIPS used by all VMs.
+	 * 
+	 * @pre $none
+	 * @post none
+	 */
+	public void deallocateMipsForAllVms() {
+		setAvailableMips(getMips());
+	}
+
+	/**
+	 * Gets the MIPS.
+	 * 
+	 * @return the MIPS
+	 */
+	public double getMips() {
+		return mips;
+	}
+
+	/**
+	 * Sets the MIPS.
+	 * 
+	 * @param mips the MIPS to set
+	 */
+	public void setMips(double mips) {
+		this.mips = mips;
+	}
+
+	/**
+	 * Gets the available MIPS in the PE.
+	 * 
+	 * @return available MIPS
+	 * 
+	 * @pre $none
+	 * @post $none
+	 */
+	public double getAvailableMips() {
+		return availableMips;
+	}
+
+	/**
+	 * Sets the available MIPS.
+	 * 
+	 * @param availableMips the availableMips to set
+	 */
+	protected void setAvailableMips(double availableMips) {
+		this.availableMips = availableMips;
+	}
+
+	/**
+	 * Gets the total allocated MIPS.
+	 * 
+	 * @return the total allocated MIPS
+	 */
+	public double getTotalAllocatedMips() {
+		double totalAllocatedMips = getMips() - getAvailableMips();
+		if (totalAllocatedMips > 0) {
+			return totalAllocatedMips;
+		}
+		return 0;
+	}
+
+	/**
+	 * Gets the utilization of the Pe in percents.
+	 * 
+	 * @return the utilization
+	 */
+	public double getUtilization() {
+		return getTotalAllocatedMips() / getMips();
+	}
+
+}