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CloudSim Plus: A modern, highly extensible and easier-to-use Java 8 Framework for Modeling and Simulation of Cloud Computing Infrastructures and Services
package org.cloudbus.cloudsim.provisioners;
import org.cloudbus.cloudsim.resources.ResourceManageable;
import org.cloudbus.cloudsim.vms.Vm;
/**
* A class that implements the Null Object Design Pattern for
* {@link ResourceProvisioner} class.
*
* @author Manoel Campos da Silva Filho
* @see ResourceProvisioner#NULL
*/
final class ResourceProvisionerNull implements ResourceProvisioner {
@Override public boolean allocateResourceForVm(Vm vm, long newTotalVmResourceCapacity) {
return false;
}
@Override public long getAllocatedResourceForVm(Vm vm) {
return 0;
}
@Override public long getTotalAllocatedResource() {
return 0;
}
@Override public boolean deallocateResourceForVm(Vm vm) {
return false;
}
@Override public void deallocateResourceForAllVms() {/**/}
@Override public boolean isSuitableForVm(Vm vm, long newVmTotalAllocatedResource) {
return false;
}
@Override public ResourceManageable getResource() {
return ResourceManageable.NULL;
}
@Override public void setResource(ResourceManageable resource) {/**/}
@Override public long getCapacity() { return 0; }
@Override public long getAvailableResource() { return 0; }
@Override public boolean isResourceAllocatedToVm(Vm vm) { return false; }
}