/**
*
*/
package org.cloudbus.cloudsim.container.resourceAllocators;
import org.cloudbus.cloudsim.container.core.Container;
import org.cloudbus.cloudsim.container.core.ContainerVm;
import org.cloudbus.cloudsim.Log;
import org.cloudbus.cloudsim.core.CloudSim;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* @author sareh
*
*/
public class ContainerAllocationPolicySimple extends ContainerAllocationPolicy {
/** The vm table. */
private Map<String, ContainerVm> containerVmTable;
/** The used pes. */
private Map<String, Integer> usedPes;
/** The free pes. */
private List<Integer> freePes;
/**
* Creates the new VmAllocationPolicySimple object.
*
* @pre $none
* @post $none
*/
public ContainerAllocationPolicySimple() {
super();
setFreePes(new ArrayList<Integer>());
setContainerVmTable(new HashMap<String, ContainerVm>());
setUsedPes(new HashMap<String, Integer>());
}
@Override
public boolean allocateVmForContainer(Container container, List<ContainerVm> containerVmList) {
// the available container list is updated. It gets is from the data center.
setContainerVmList(containerVmList);
for (ContainerVm containerVm : getContainerVmList()) {
getFreePes().add(containerVm.getNumberOfPes());
}
int requiredPes = container.getNumberOfPes();
boolean result = false;
int tries = 0;
List<Integer> freePesTmp = new ArrayList<>();
for (Integer freePes : getFreePes()) {
freePesTmp.add(freePes);
}
if (!getContainerVmTable().containsKey(container.getUid())) { // if this vm was not created
do {// we still trying until we find a host or until we try all of them
int moreFree = Integer.MIN_VALUE;
int idx = -1;
// we want the host with less pes in use
for (int i = 0; i < freePesTmp.size(); i++) {
if (freePesTmp.get(i) > moreFree) {
moreFree = freePesTmp.get(i);
idx = i;
}
}
ContainerVm containerVm = getContainerVmList().get(idx);
result = containerVm.containerCreate(container);
if (result) { // if vm were succesfully created in the host
getContainerVmTable().put(container.getUid(), containerVm);
getUsedPes().put(container.getUid(), requiredPes);
getFreePes().set(idx, getFreePes().get(idx) - requiredPes);
result = true;
break;
} else {
freePesTmp.set(idx, Integer.MIN_VALUE);
}
tries++;
} while (!result && tries < getFreePes().size());
}
freePesTmp.clear();
return result;
}
@Override
public boolean allocateVmForContainer(Container container, ContainerVm containerVm) {
if (containerVm.containerCreate(container)) { // if vm has been succesfully created in the host
getContainerVmTable().put(container.getUid(), containerVm);
int requiredPes = container.getNumberOfPes();
int idx = getContainerVmList().indexOf(container);
getUsedPes().put(container.getUid(), requiredPes);
getFreePes().set(idx, getFreePes().get(idx) - requiredPes);
Log.formatLine(
"%.2f: Container #" + container.getId() + " has been allocated to the Vm #" + containerVm.getId(),
CloudSim.clock());
return true;
}
return false;
}
@Override
public List<Map<String, Object>> optimizeAllocation(List<? extends Container> containerList) {
return null;
}
@Override
public void deallocateVmForContainer(Container container) {
ContainerVm containerVm = getContainerVmTable().remove(container.getUid());
int idx = getContainerVmList().indexOf(containerVm);
int pes = getUsedPes().remove(container.getUid());
if (containerVm != null) {
containerVm.containerDestroy(container);
getFreePes().set(idx, getFreePes().get(idx) + pes);
}
}
@Override
public ContainerVm getContainerVm(Container container) {
return getContainerVmTable().get(container.getUid());
}
@Override
public ContainerVm getContainerVm(int containerId, int userId) {
return getContainerVmTable().get(Container.getUid(userId, containerId));
}
protected Map<String, ContainerVm> getContainerVmTable() {
return containerVmTable;
}
protected void setContainerVmTable(Map<String, ContainerVm> containerVmTable) {
this.containerVmTable = containerVmTable;
}
protected Map<String, Integer> getUsedPes() {
return usedPes;
}
protected void setUsedPes(Map<String, Integer> usedPes) {
this.usedPes = usedPes;
}
protected List<Integer> getFreePes() {
return freePes;
}
protected void setFreePes(List<Integer> freePes) {
this.freePes = freePes;
}
}