modification on reading settings from config file
1- simulation scenarios are defined in config file instead of static enumarations 2- defining multiple edge orchestrator policy in config file support is added
This commit is contained in:
		@@ -17,7 +17,11 @@ gsm_bandwidth=10
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mips_for_cloud=20000
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task_provisioning=NEXT_FIT
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#use ',' for multiple values
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orchestrator_policies=NEXT_FIT
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#use ',' for multiple values
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simulation_scenarios=SINGLE_TIER,TWO_TIER,TWO_TIER_WITH_EO
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attractiveness_L1_mean_waiting_time=60
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attractiveness_L2_mean_waiting_time=30
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@@ -47,7 +47,7 @@ public class SimManager extends SimEntity {
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	private static SimManager instance = null;
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	public SimManager(ScenarioFactory _scenarioFactory, int _numOfMobileDevice, SimSettings.SCENARIO_TYPES _simScenario) throws Exception {
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	public SimManager(ScenarioFactory _scenarioFactory, int _numOfMobileDevice, String _simScenario) throws Exception {
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		super("SimManager");
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		scenarioFactory = _scenarioFactory;
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		numOfMobileDevice = _numOfMobileDevice;
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@@ -33,13 +33,12 @@ public class SimSettings {
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	private static SimSettings instance = null;
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	private Document edgeDevicesDoc = null;
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	//enumarations for the scenarion, VM, appplication, and place.
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	//enumarations for the VM, appplication, and place.
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	//if you want to add different types on your config file,
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	//you may modify current types or add new types here. 
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	public static enum VM_TYPES { EDGE_VM, CLOUD_VM }
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	public static enum APP_TYPES { FACE_REC_APP, HEALTH_APP, HEAVY_COMP_APP, VIDEO_GAME_APP, SIMPLE_SERVICE_APP }
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	public static enum PLACE_TYPES { ATTRACTIVENESS_L1, ATTRACTIVENESS_L2, ATTRACTIVENESS_L3 }
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	public static enum SCENARIO_TYPES { SINGLE_TIER, TWO_TIER, TWO_TIER_WITH_EO }
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	//predifined ID for cloud components.
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	public static int CLOUD_DATACENTER_ID = 1000;
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@@ -71,7 +70,8 @@ public class SimSettings {
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    private int MIPS_FOR_CLOUD; //MIPS
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    private String ORCHESTRATOR_POLICY;
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    private String[] SIMULATION_SCENARIOS;
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    private String[] ORCHESTRATOR_POLICIES;
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    // mean waiting time (minute) is stored for each place types
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    private double[] mobilityLookUpTable;
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@@ -135,7 +135,9 @@ public class SimSettings {
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			//-Each task is executed with maximum capacity (as if there is no task in the cloud) 
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			MIPS_FOR_CLOUD = Integer.parseInt(prop.getProperty("mips_for_cloud"));
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			ORCHESTRATOR_POLICY = prop.getProperty("task_provisioning");
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			ORCHESTRATOR_POLICIES = prop.getProperty("orchestrator_policies").split(",");
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			SIMULATION_SCENARIOS = prop.getProperty("simulation_scenarios").split(",");
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			//avg waiting time in a place (min)
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			double place1_mean_waiting_time = Double.parseDouble(prop.getProperty("attractiveness_L1_mean_waiting_time"));
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@@ -314,11 +316,19 @@ public class SimSettings {
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	}
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	/**
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	 * returns orchestrator policy as string
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	 * returns simulation screnarios as string
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	 */
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	public String getOrchestratorPolicy()
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	public String[] getSimulationScenarios()
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	{
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		return ORCHESTRATOR_POLICY;
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		return SIMULATION_SCENARIOS;
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	}
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	/**
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	 * returns orchestrator policies as string
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	 */
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	public String[] getOrchestratorPolicies()
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	{
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		return ORCHESTRATOR_POLICIES;
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	}
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	/**
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@@ -18,7 +18,6 @@ import org.cloudbus.cloudsim.core.CloudSim;
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import edu.boun.edgecloudsim.core.SimManager;
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import edu.boun.edgecloudsim.core.SimSettings;
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import edu.boun.edgecloudsim.core.SimSettings.SCENARIO_TYPES;
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import edu.boun.edgecloudsim.edge_server.EdgeVM;
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import edu.boun.edgecloudsim.edge_client.CpuUtilizationModel_Custom;
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import edu.boun.edgecloudsim.edge_client.Task;
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@@ -30,8 +29,7 @@ public class BasicEdgeOrchestrator extends EdgeOrchestrator {
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	private int lastSelectedHostIndex; //used by load balancer
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	private int[] lastSelectedVmIndexes; //used by each host individually
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	public BasicEdgeOrchestrator(String _policy,
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			SCENARIO_TYPES _simScenario) {
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	public BasicEdgeOrchestrator(String _policy, String _simScenario) {
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		super(_policy, _simScenario);
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	}
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@@ -47,7 +45,7 @@ public class BasicEdgeOrchestrator extends EdgeOrchestrator {
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	@Override
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	public EdgeVM selectVm(Task task) {
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		if(simScenario == SimSettings.SCENARIO_TYPES.TWO_TIER_WITH_EO)
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		if(simScenario.equals("TWO_TIER_WITH_EO"))
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			return selectVmOnLoadBalancer(task);
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		else
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			return selectVmOnHost(task);
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@@ -13,15 +13,14 @@
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package edu.boun.edgecloudsim.edge_orchestrator;
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import edu.boun.edgecloudsim.core.SimSettings;
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import edu.boun.edgecloudsim.edge_server.EdgeVM;
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import edu.boun.edgecloudsim.edge_client.Task;
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public abstract class EdgeOrchestrator {
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	protected String policy;
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	protected SimSettings.SCENARIO_TYPES simScenario;
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	protected String simScenario;
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	public EdgeOrchestrator(String _policy, SimSettings.SCENARIO_TYPES _simScenario){
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	public EdgeOrchestrator(String _policy, String _simScenario){
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		policy = _policy;
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		simScenario = _simScenario;
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	}
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@@ -17,7 +17,6 @@ import org.cloudbus.cloudsim.UtilizationModel;
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import org.cloudbus.cloudsim.VmAllocationPolicy;
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import edu.boun.edgecloudsim.core.ScenarioFactory;
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import edu.boun.edgecloudsim.core.SimSettings;
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import edu.boun.edgecloudsim.core.SimSettings.APP_TYPES;
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import edu.boun.edgecloudsim.edge_orchestrator.BasicEdgeOrchestrator;
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import edu.boun.edgecloudsim.edge_orchestrator.EdgeOrchestrator;
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@@ -34,12 +33,12 @@ public class SampleScenarioFactory implements ScenarioFactory {
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	private int numOfMobileDevice;
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	private double simulationTime;
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	private String orchestratorPolicy;
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	private SimSettings.SCENARIO_TYPES simScenario;
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	private String simScenario;
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	SampleScenarioFactory(int _numOfMobileDevice,
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			double _simulationTime,
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			String _orchestratorPolicy,
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			SimSettings.SCENARIO_TYPES _simScenario){
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			String _simScenario){
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		orchestratorPolicy = _orchestratorPolicy;
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		numOfMobileDevice = _numOfMobileDevice;
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		simulationTime = _simulationTime;
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@@ -75,5 +74,4 @@ public class SampleScenarioFactory implements ScenarioFactory {
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	public UtilizationModel getCpuUtilizationModel(APP_TYPES _taskType) {
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		return new CpuUtilizationModel_Custom(_taskType);
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	}
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}
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@@ -75,44 +75,50 @@ public class mainApp {
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		for(int j=SS.getMinNumOfMobileDev(); j<=SS.getMaxNumOfMobileDev(); j+=SS.getMobileDevCounterSize())
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		{
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			for (SimSettings.SCENARIO_TYPES scenario : SimSettings.SCENARIO_TYPES.values())
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			for(int k=0; k<SS.getSimulationScenarios().length; k++)
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			{
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				Date ScenarioStartDate = Calendar.getInstance().getTime();
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				now = df.format(ScenarioStartDate);
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				SimLogger.printLine("Scenario started at " + now);
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				SimLogger.printLine(scenario + "(" + SS.getOrchestratorPolicy() + ")" + " - duration: " + SS.getSimulationTime()/3600 + " hour(s) - poisson: " + SS.getTaskLookUpTable()[0][2] + " - #devices: " + j + " - ite: " + iterationNumber);
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				SimLogger.getInstance().simStarted(outputFolder,"SIMRESULT_" + scenario + "_" + j + "DEVICES");
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				try
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				for(int i=0; i<SS.getOrchestratorPolicies().length; i++)
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				{
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					// First step: Initialize the CloudSim package. It should be called
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					// before creating any entities.
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					int num_user = 2;   // number of grid users
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					Calendar calendar = Calendar.getInstance();
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					boolean trace_flag = false;  // mean trace events
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					String simScenario = SS.getSimulationScenarios()[k];
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					String orchestratorPolicy = SS.getOrchestratorPolicies()[i];
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					Date ScenarioStartDate = Calendar.getInstance().getTime();
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					now = df.format(ScenarioStartDate);
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					// Initialize the CloudSim library
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					CloudSim.init(num_user, calendar, trace_flag, 0.01);
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					SimLogger.printLine("Scenario started at " + now);
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					SimLogger.printLine("Scenario: " + simScenario + " - Policy: " + orchestratorPolicy + " - #iteration: " + iterationNumber);
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					SimLogger.printLine("Duration: " + SS.getSimulationTime()/3600 + " hour(s) - Poisson: " + SS.getTaskLookUpTable()[0][2] + " - #devices: " + j);
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					SimLogger.getInstance().simStarted(outputFolder,"SIMRESULT_" + simScenario + "_"  + orchestratorPolicy + "_" + j + "DEVICES");
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					ScenarioFactory sampleFactory = new SampleScenarioFactory(j,SS.getSimulationTime(), SS.getOrchestratorPolicy(), scenario);
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					try
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					{
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						// First step: Initialize the CloudSim package. It should be called
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						// before creating any entities.
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						int num_user = 2;   // number of grid users
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						Calendar calendar = Calendar.getInstance();
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						boolean trace_flag = false;  // mean trace events
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					SimManager manager = new SimManager(sampleFactory, j, scenario);
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					manager.startSimulation();
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				}
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				catch (Exception e)
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				{
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					SimLogger.printLine("The simulation has been terminated due to an unexpected error");
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					e.printStackTrace();
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					System.exit(0);
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				}
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						// Initialize the CloudSim library
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						CloudSim.init(num_user, calendar, trace_flag, 0.01);
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				Date ScenarioEndDate = Calendar.getInstance().getTime();
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				now = df.format(ScenarioEndDate);
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				SimLogger.printLine("Scenario finished at " + now +  ". It took " + SimUtils.getTimeDifference(ScenarioStartDate,ScenarioEndDate));
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				SimLogger.printLine("----------------------------------------------------------------------");
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			}//End of SCENARIO_TYPES loop
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		}//End of NUMBER_OF_MOBILE_DEVICE loop
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						ScenarioFactory sampleFactory = new SampleScenarioFactory(j,SS.getSimulationTime(), orchestratorPolicy, simScenario);
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						SimManager manager = new SimManager(sampleFactory, j, simScenario);
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						manager.startSimulation();
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					}
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					catch (Exception e)
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					{
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						SimLogger.printLine("The simulation has been terminated due to an unexpected error");
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						e.printStackTrace();
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						System.exit(0);
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					}
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					Date ScenarioEndDate = Calendar.getInstance().getTime();
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					now = df.format(ScenarioEndDate);
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					SimLogger.printLine("Scenario finished at " + now +  ". It took " + SimUtils.getTimeDifference(ScenarioStartDate,ScenarioEndDate));
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					SimLogger.printLine("----------------------------------------------------------------------");
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				}//End of orchestrators loop
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			}//End of scenarios loop
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		}//End of mobile devices loop
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		Date SimulationEndDate = Calendar.getInstance().getTime();
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		now = df.format(SimulationEndDate);
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@@ -26,7 +26,7 @@ import edu.boun.edgecloudsim.utils.SimUtils;
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public class IdleActiveLoadGenerator extends LoadGeneratorModel{
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	public IdleActiveLoadGenerator(int _numberOfMobileDevices, double _simulationTime, SimSettings.SCENARIO_TYPES _simScenario) {
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	public IdleActiveLoadGenerator(int _numberOfMobileDevices, double _simulationTime, String _simScenario) {
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		super(_numberOfMobileDevices, _simulationTime, _simScenario);
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	}
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@@ -88,7 +88,7 @@ public class IdleActiveLoadGenerator extends LoadGeneratorModel{
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				}
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				boolean requireCloud = false;
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				if(simScenario != SimSettings.SCENARIO_TYPES.SINGLE_TIER){
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				if(!simScenario.equals("SINGLE_TIER")){
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					//decide to use cloud or cloudlet VM
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					int CloudVmPicker = SimUtils.getRandomNumber(0, 100);
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@@ -15,16 +15,15 @@ package edu.boun.edgecloudsim.task_generator;
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import java.util.List;
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import edu.boun.edgecloudsim.core.SimSettings;
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import edu.boun.edgecloudsim.utils.EdgeTask;
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public abstract class LoadGeneratorModel {
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	protected List<EdgeTask> taskList;
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	protected int numberOfMobileDevices;
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	protected double simulationTime;
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	protected SimSettings.SCENARIO_TYPES simScenario;
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	protected String simScenario;
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	public LoadGeneratorModel(int _numberOfMobileDevices, double _simulationTime, SimSettings.SCENARIO_TYPES _simScenario){
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	public LoadGeneratorModel(int _numberOfMobileDevices, double _simulationTime, String _simScenario){
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		numberOfMobileDevices=_numberOfMobileDevices;
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		simulationTime=_simulationTime;
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		simScenario=_simScenario;
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