128 lines
3.4 KiB
Java
128 lines
3.4 KiB
Java
/*
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* Title: EdgeCloudSim - Custom VM Allocation Policy for Cloud VMs
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*
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* Description:
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* VmAllocationPolicy_Custom implements VmAllocationPolicy to decide which.
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* VM is created on which host located on the datacenters. For those
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* who wants to add another Vm Allocation Policy to EdgeCloudSim should
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* provide another concrete instance of VmAllocationPolicy via ScenarioFactory
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*
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* Licence: GPL - http://www.gnu.org/copyleft/gpl.html
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* Copyright (c) 2017, Bogazici University, Istanbul, Turkey
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*/
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package edu.boun.edgecloudsim.cloud_server;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import org.cloudbus.cloudsim.Host;
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import org.cloudbus.cloudsim.Log;
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import org.cloudbus.cloudsim.Vm;
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import org.cloudbus.cloudsim.VmAllocationPolicy;
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import org.cloudbus.cloudsim.core.CloudSim;
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import edu.boun.edgecloudsim.core.SimSettings;
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/*
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* Same as VmAllocationPolicySimple.
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*/
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public class CloudVmAllocationPolicy_Custom extends VmAllocationPolicy {
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/** The vm table. */
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private Map<String, Host> vmTable;
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private static int createdVmNum;
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private int DataCenterIndex;
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public CloudVmAllocationPolicy_Custom(List<? extends Host> list, int _DataCenterIndex) {
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super(list);
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setVmTable(new HashMap<String, Host>());
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DataCenterIndex=_DataCenterIndex;
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createdVmNum = 0;
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}
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@Override
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public boolean allocateHostForVm(Vm vm) {
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boolean result = false;
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if (!getVmTable().containsKey(vm.getUid()) && vm instanceof CloudVM) { // if this vm was not created
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int hostIndex = (vm.getId() - SimSettings.getInstance().getNumOfEdgeVMs()) / SimSettings.getInstance().getNumOfCloudVMsPerHost();
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if(DataCenterIndex == SimSettings.CLOUD_DATACENTER_ID){
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Host host = getHostList().get(hostIndex);
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result = host.vmCreate(vm);
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if (result) { // if vm were successfully created in the host
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getVmTable().put(vm.getUid(), host);
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createdVmNum++;
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Log.formatLine("%.2f: Cloud VM #" + vm.getId() + " has been allocated to the host #" + host.getId(),CloudSim.clock());
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result = true;
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}
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}
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}
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return result;
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}
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@Override
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public boolean allocateHostForVm(Vm vm, Host host) {
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if (host.vmCreate(vm)) { // if vm has been succesfully created in the host
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getVmTable().put(vm.getUid(), host);
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createdVmNum++;
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Log.formatLine("%.2f: Cloud VM #" + vm.getId() + " has been allocated to the host #" + host.getId(),CloudSim.clock());
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return true;
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}
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return false;
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}
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@Override
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public List<Map<String, Object>> optimizeAllocation(
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List<? extends Vm> vmList) {
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// TODO Auto-generated method stub
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return null;
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}
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@Override
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public void deallocateHostForVm(Vm vm) {
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Host host = getVmTable().remove(vm.getUid());
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if (host != null) {
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host.vmDestroy(vm);
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}
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}
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@Override
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public Host getHost(Vm vm) {
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return getVmTable().get(vm.getUid());
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}
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@Override
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public Host getHost(int vmId, int userId) {
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return getVmTable().get(Vm.getUid(userId, vmId));
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}
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public static int getCreatedVmNum(){
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return createdVmNum;
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}
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/**
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* Gets the vm table.
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*
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* @return the vm table
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*/
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public Map<String, Host> getVmTable() {
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return vmTable;
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}
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/**
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* Sets the vm table.
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*
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* @param vmTable the vm table
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*/
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protected void setVmTable(Map<String, Host> vmTable) {
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this.vmTable = vmTable;
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}
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}
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