Java Constants类代码示例

import org.cloudbus.cloudsim.examples.power.Constants; //导入依赖的package包/类
/**
 * The main method.
 * 
 * @param args the arguments
 * @throws IOException Signals that an I/O exception has occurred.
 */
public static void main(String[] args) throws IOException {
	String experimentName = "planetlab_npa";
	String outputFolder = "output";
	String inputFolder = NonPowerAware.class.getClassLoader().getResource("workload/planetlab/20110303")
			.getPath();

	Log.setDisabled(!Constants.ENABLE_OUTPUT);
	Log.printLine("Starting " + experimentName);

	try {
		CloudSim.init(1, Calendar.getInstance(), false);

		DatacenterBroker broker = Helper.createBroker();
		int brokerId = broker.getId();

		List<Cloudlet> cloudletList = PlanetLabHelper.createCloudletListPlanetLab(brokerId, inputFolder);
		List<Vm> vmList = Helper.createVmList(brokerId, cloudletList.size());
		List<PowerHost> hostList = Helper.createHostList(PlanetLabConstants.NUMBER_OF_HOSTS);

		PowerDatacenterNonPowerAware datacenter = (PowerDatacenterNonPowerAware) Helper.createDatacenter(
				"Datacenter",
				PowerDatacenterNonPowerAware.class,
				hostList,
				new PowerVmAllocationPolicySimple(hostList));

		datacenter.setDisableMigrations(true);

		broker.submitVmList(vmList);
		broker.submitCloudletList(cloudletList);

		CloudSim.terminateSimulation(Constants.SIMULATION_LIMIT);
		double lastClock = CloudSim.startSimulation();

		List<Cloudlet> newList = broker.getCloudletReceivedList();
		Log.printLine("Received " + newList.size() + " cloudlets");

		CloudSim.stopSimulation();

		Helper.printResults(
				datacenter,
				vmList,
				lastClock,
				experimentName,
				Constants.OUTPUT_CSV,
				outputFolder);

	} catch (Exception e) {
		e.printStackTrace();
		Log.printLine("The simulation has been terminated due to an unexpected error");
		System.exit(0);
	}

	Log.printLine("Finished " + experimentName);
}
 

import org.cloudbus.cloudsim.examples.power.Constants; //导入依赖的package包/类
/**
 * Instantiates a new power vm allocation policy migration abstract.
 * 
 * @param hostList the host list
 * @param vmSelectionPolicy the vm selection policy
 */
public PowerVmAllocationPolicyMigrationAbstract(
		List<? extends Host> hostList,
		PowerVmSelectionPolicy vmSelectionPolicy) {
	super(hostList);
	setVmSelectionPolicy(vmSelectionPolicy);
	setFindHostPolicy(Constants.findHostPolicy);
}
 

import org.cloudbus.cloudsim.examples.power.Constants; //导入依赖的package包/类
/**
 * Creates the cloudlet list planet lab.
 * 
 * @param brokerId the broker id
 * @param inputFolderName the input folder name
 * @return the list
 * @throws FileNotFoundException the file not found exception
 */
public static List<Cloudlet> createCloudletListPlanetLab(int brokerId, String inputFolderName)
		throws FileNotFoundException {
	List<Cloudlet> list = new ArrayList<Cloudlet>();

	long fileSize = 300;
	long outputSize = 300;
	UtilizationModel utilizationModelNull = new UtilizationModelNull();

	File inputFolder = new File(inputFolderName);
	File[] files = inputFolder.listFiles();

	for (int i = 0; i < files.length; i++) {
		Cloudlet cloudlet = null;
		try {
			cloudlet = new Cloudlet(
					i,
					Constants.CLOUDLET_LENGTH,
					Constants.CLOUDLET_PES,
					fileSize,
					outputSize,
					new UtilizationModelPlanetLabInMemory(
							files[i].getAbsolutePath(),
							Constants.SCHEDULING_INTERVAL), utilizationModelNull, utilizationModelNull);
		} catch (Exception e) {
			e.printStackTrace();
			System.exit(0);
		}
		cloudlet.setUserId(brokerId);
		cloudlet.setVmId(i);
		list.add(cloudlet);
	}

	return list;
}
 

import org.cloudbus.cloudsim.examples.power.Constants; //导入依赖的package包/类
/**
 * Creates the cloudlet list.
 * 
 * @param brokerId the broker id
 * @param cloudletsNumber the cloudlets number
 * 
 * @return the list< cloudlet>
 */
public static List<Cloudlet> createCloudletList(int brokerId, int cloudletsNumber) {
	List<Cloudlet> list = new ArrayList<Cloudlet>();

	long fileSize = 300;
	long outputSize = 300;
	long seed = RandomConstants.CLOUDLET_UTILIZATION_SEED;
	UtilizationModel utilizationModelNull = new UtilizationModelNull();

	for (int i = 0; i < cloudletsNumber; i++) {
		Cloudlet cloudlet = null;
		if (seed == -1) {
			cloudlet = new Cloudlet(
					i,
					Constants.CLOUDLET_LENGTH,
					Constants.CLOUDLET_PES,
					fileSize,
					outputSize,
					new UtilizationModelStochastic(),
					utilizationModelNull,
					utilizationModelNull);
		} else {
			cloudlet = new Cloudlet(
					i,
					Constants.CLOUDLET_LENGTH,
					Constants.CLOUDLET_PES,
					fileSize,
					outputSize,
					new UtilizationModelStochastic(seed * i),
					utilizationModelNull,
					utilizationModelNull);
		}
		cloudlet.setUserId(brokerId);
		cloudlet.setVmId(i);
		list.add(cloudlet);
	}

	return list;
}
 

import org.cloudbus.cloudsim.examples.power.Constants; //导入依赖的package包/类
/**
 * Creates main() to run this example.
 * 
 * @param args the args
 * @throws IOException
 */
public static void main(String[] args) throws IOException {
	String experimentName = "random_npa";
	String outputFolder = "output";

	Log.setDisabled(!Constants.ENABLE_OUTPUT);
	Log.printLine("Starting " + experimentName);

	try {
		CloudSim.init(1, Calendar.getInstance(), false);

		DatacenterBroker broker = Helper.createBroker();
		int brokerId = broker.getId();

		List<Cloudlet> cloudletList = RandomHelper.createCloudletList(
				brokerId,
				RandomConstants.NUMBER_OF_VMS);
		List<Vm> vmList = Helper.createVmList(brokerId, cloudletList.size());
		List<PowerHost> hostList = Helper.createHostList(RandomConstants.NUMBER_OF_HOSTS);

		PowerDatacenterNonPowerAware datacenter = (PowerDatacenterNonPowerAware) Helper.createDatacenter(
				"Datacenter",
				PowerDatacenterNonPowerAware.class,
				hostList,
				new PowerVmAllocationPolicySimple(hostList));

		datacenter.setDisableMigrations(true);

		broker.submitVmList(vmList);
		broker.submitCloudletList(cloudletList);

		CloudSim.terminateSimulation(Constants.SIMULATION_LIMIT);
		double lastClock = CloudSim.startSimulation();

		List<Cloudlet> newList = broker.getCloudletReceivedList();
		Log.printLine("Received " + newList.size() + " cloudlets");

		CloudSim.stopSimulation();

		Helper.printResults(
				datacenter,
				vmList,
				lastClock,
				experimentName,
				Constants.OUTPUT_CSV,
				outputFolder);

	} catch (Exception e) {
		e.printStackTrace();
		Log.printLine("The simulation has been terminated due to an unexpected error");
		System.exit(0);
	}

	Log.printLine("Finished " + experimentName);
}