cloudsim基於例子自己建立自己雲計算仿真平臺（仿CloudSimExample4.java）

package clousimtest;

import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.LinkedList;
import java.util.List;

import org.cloudbus.cloudsim.Cloudlet;
import org.cloudbus.cloudsim.CloudletSchedulerTimeShared;
import org.cloudbus.cloudsim.Datacenter;
import org.cloudbus.cloudsim.DatacenterBroker;
import org.cloudbus.cloudsim.DatacenterCharacteristics;
import org.cloudbus.cloudsim.Host;
import org.cloudbus.cloudsim.Log;
import org.cloudbus.cloudsim.Pe;
import org.cloudbus.cloudsim.Storage;
import org.cloudbus.cloudsim.UtilizationModel;
import org.cloudbus.cloudsim.UtilizationModelFull;
import org.cloudbus.cloudsim.Vm;
import org.cloudbus.cloudsim.VmAllocationPolicySimple;
import org.cloudbus.cloudsim.VmSchedulerSpaceShared;
import org.cloudbus.cloudsim.VmSchedulerTimeShared;
import org.cloudbus.cloudsim.core.CloudSim;
import org.cloudbus.cloudsim.provisioners.BwProvisionerSimple;
import org.cloudbus.cloudsim.provisioners.PeProvisionerSimple;
import org.cloudbus.cloudsim.provisioners.RamProvisionerSimple;

/**
 * 兩個數據中心，每個中心有一個主機，一共執行兩個任務
 * @author ytw
 *
 */
public class mycloudsim4 {
	//虛擬機列表
		private static List<Vm> vmlist;
		//雲任務列表
		private static List<Cloudlet> cloudletList;  
		public static void main(String[] args) {
			Log.printLine("Starting MyCloudSim...");
			try{
				//雲用戶數量
				int num_user = 1;
				//日曆的字段已使用當前日期和時間初始化。
				Calendar calendar = Calendar.getInstance();
				//跟蹤事件
				boolean trace_flag = false;
				//初始化CloudSim庫。
				CloudSim.init(num_user, calendar, trace_flag);
				//第二步：創建數據中心
				Datacenter datacenter0 = createDatacenter("Datacenter_0");
				Datacenter datacenter1 = createDatacenter("Datacenter_1");
				//第三步：創建代理
				DatacenterBroker broker = createBroker();
				int brokerId = broker.getId();
				//第四步：創建兩個個虛擬機
				Vm vm1 = createVm(brokerId,0);
				Vm vm2 = createVm(brokerId,1);
				//添加到虛擬機列表
				vmlist = new ArrayList<Vm>();
				vmlist.add(vm1);
				vmlist.add(vm2);
				//提交虛擬機列表到代理
				broker.submitVmList(vmlist);
				//第五步：創建兩個雲任務，將雲任務添加到列表中，將雲任務列表提交給數據中心代理
				Cloudlet cloudlet1 = createCloudlet(brokerId,0);
				Cloudlet cloudlet2 = createCloudlet(brokerId,1);
				//將雲任務添加到列表中
				cloudletList = new ArrayList<Cloudlet>();
				cloudletList.add(cloudlet1);
				cloudletList.add(cloudlet2);
				//將雲任務列表提交給代理
				broker.submitCloudletList(cloudletList);
				//將雲任務綁定到指定虛擬機上
				broker.bindCloudletToVm(cloudlet1.getCloudletId(),vm1.getId());
	        	broker.bindCloudletToVm(cloudlet2.getCloudletId(),vm2.getId());
	        	//第六步：開始模擬
				CloudSim.startSimulation();
				//CloudSim.stopSimulation();
				//最後一步：模擬結束時打印結果
				List<Cloudlet> newList = broker.getCloudletReceivedList();
				printCloudletList(newList);
				Log.printLine("MyCloudSim4 finished!");
	    
			}catch(Exception e){
				e.printStackTrace();
	            Log.printLine("The simulation has been terminated due to an unexpected error");
			}
		}
			//創建雲任務
			private static Cloudlet createCloudlet(int brokerId,int id){
				//雲任務屬性
				long length = 400000;
				long fileSize = 300;
				long outputSize = 300;
				int pesNumber = 1;
				UtilizationModel utilizationModel = new UtilizationModelFull();
				Cloudlet cloudlet =new Cloudlet(id, length, pesNumber, fileSize, 
		                                outputSize, utilizationModel, utilizationModel, 
		                                utilizationModel);
				cloudlet.setUserId(brokerId);
				return cloudlet;
			}
			//創建虛擬機
			private static Vm createVm(int brokerId,int vmid){
				//Vm 描述
				int mips = 500;//速率
				long size = 10000; //  虛擬機的存儲大小 (MB)
				int ram = 512; //  虛擬機內存 (MB)
				long bw = 1000;//虛擬機帶寬
				int pesNumber = 1; // cpu核數
				String vmm = "Xen"; // //虛擬機監視器
				
				Vm vm = new Vm(vmid, brokerId, mips, pesNumber, ram, bw, size, vmm, new CloudletSchedulerTimeShared());
				
				return vm;
			}
			//創建代理
			private static DatacenterBroker createBroker() {
				DatacenterBroker broker = null;
				try {
					broker = new DatacenterBroker("Broker");
				} catch (Exception e) {
					e.printStackTrace();
					return null;
				}
				return broker;
			}
			private static Datacenter createDatacenter2(String name){
				List<Host> hostList = new ArrayList<Host>();
				List<Pe> peList = new ArrayList<Pe>();
				int mips = 2000;
				peList.add(new Pe(0, new PeProvisionerSimple(mips))); 
				int hostId=0;
				int ram = 2048; //host memory (MB)
				long storage = 1000000; //host storage
				int bw = 10000;
				hostList.add(
		    			new Host(
		    				hostId,
		    				new RamProvisionerSimple(ram),
		    				new BwProvisionerSimple(bw),
		    				storage,
		    				peList,
		    				new VmSchedulerSpaceShared(peList)
		    			)
		    		); 
				String arch = "x86";      // system architecture
				String os = "Linux";          // operating system
				String vmm = "Xen";
				double time_zone = 10.0;         // time zone this resource located
				double cost = 3.0;              // the cost of using processing in this resource
				double costPerMem = 0.05;		// the cost of using memory in this resource
				double costPerStorage = 0.001;	// the cost of using storage in this resource
				double costPerBw = 0.0;			// the cost of using bw in this resource
				LinkedList<Storage> storageList = new LinkedList<Storage>();	//we are not adding SAN devices by now

			       DatacenterCharacteristics characteristics = new DatacenterCharacteristics(
			                arch, os, vmm, hostList, time_zone, cost, costPerMem, costPerStorage, costPerBw);


			
				Datacenter datacenter = null;
				try {
					datacenter = new Datacenter(name, characteristics, new VmAllocationPolicySimple(hostList), storageList, 0);
				} catch (Exception e) {
					e.printStackTrace();
				}

				return datacenter;
			}

			//創建數據中心
			private static Datacenter createDatacenter(String name) {

				//1.定義主機列表
				List<Host> hostList = new ArrayList<Host>();
				//2.創建主機包含的PE或者CPU處理器列表，定義爲MIPS速率
				List<Pe> peList = new ArrayList<Pe>();
				int mips = 2000;
				//3. 創建處理器，並添加到Pe列表中
				peList.add(new Pe(0, new PeProvisionerSimple(mips))); // 需要Pe id 和 MIPS 速率
				// 4. 創建主機，並將其添加至主機列表
				int hostId = 0;
				int ram = 2048; // 主機內存 (MB)
				long storage = 1000000; // 主機的存儲空間
				int bw = 10000;//主機帶寬
				hostList.add(
		    			new Host(
		    				hostId,
		    				new RamProvisionerSimple(ram),//內存提供者，爲虛擬機提供內存
		    				new BwProvisionerSimple(bw),//帶寬提供者
		    				storage,
		    				peList,
		    				new VmSchedulerSpaceShared(peList)//空間共享的VM調度
		    			)
		    		); 

				// 5. 創建存儲數據中心屬性的DatacenterCharacteristics對象：架構，操作系統，機器列表，
				//    分配策略：時間或空間共享，時區及其價格（G $ / Pe時間單位）。
				String arch = "x86"; // 架構
				String os = "Linux"; // 操作系統
				String vmm = "Xen"; //虛擬機監視器
				double time_zone = 10.0; // 此資源所在的時區
				double cost = 3.0; // 處理器花費
				double costPerMem = 0.05; // 內存花費
				double costPerStorage = 0.001; // 存儲花費
				double costPerBw = 0.0; //帶寬花費
				LinkedList<Storage> storageList = new LinkedList<Storage>(); // 我們現在不添加SAN設備
				DatacenterCharacteristics characteristics = new DatacenterCharacteristics(
						arch, os, vmm, hostList, time_zone, cost, costPerMem,
						costPerStorage, costPerBw);

				// 6. 最後，我們需要創建一個PowerDatacenter對象。
				Datacenter datacenter = null;
				try {
					datacenter = new Datacenter(name, characteristics, new VmAllocationPolicySimple(hostList), storageList, 0);
				} catch (Exception e) {
					e.printStackTrace();
				}

				return datacenter;
			}
			private static void printCloudletList(List<Cloudlet> list) {
				int size = list.size();
				Cloudlet cloudlet;

				String indent = "    ";
				Log.printLine();
				Log.printLine("========== OUTPUT ==========");
				Log.printLine("Cloudlet ID" + indent + "STATUS" + indent
						+ "Data center ID" + indent + "VM ID" + indent + "Time" + indent
						+ "Start Time" + indent + "Finish Time");

				DecimalFormat dft = new DecimalFormat("###.##");
				for (int i = 0; i < size; i++) {
					cloudlet = list.get(i);
					Log.print(indent + cloudlet.getCloudletId() + indent + indent);

					if (cloudlet.getCloudletStatus() == Cloudlet.SUCCESS) {
						Log.print("SUCCESS");

						Log.printLine(indent + indent + cloudlet.getResourceId()
								+ indent + indent + indent + cloudlet.getVmId()
								+ indent + indent
								+ dft.format(cloudlet.getActualCPUTime()) + indent
								+ indent + dft.format(cloudlet.getExecStartTime())
								+ indent + indent
								+ dft.format(cloudlet.getFinishTime()));
					}
				}
			}
}