package org.ovirt.engine.core.bll.scheduling.policyunits;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.ovirt.engine.core.bll.scheduling.PolicyUnitImpl;
import org.ovirt.engine.core.bll.scheduling.SchedulingUnit;
import org.ovirt.engine.core.bll.scheduling.SlaValidator;
import org.ovirt.engine.core.bll.scheduling.pending.PendingResourceManager;
import org.ovirt.engine.core.common.businessentities.Cluster;
import org.ovirt.engine.core.common.businessentities.VDS;
import org.ovirt.engine.core.common.businessentities.VM;
import org.ovirt.engine.core.common.errors.EngineMessage;
import org.ovirt.engine.core.common.scheduling.PerHostMessages;
import org.ovirt.engine.core.common.scheduling.PolicyUnit;
import org.ovirt.engine.core.common.scheduling.PolicyUnitType;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@SchedulingUnit(
guid = "6d636bf6-a35c-4f9d-b68d-0731f720cddc",
name = "CPU",
type = PolicyUnitType.FILTER,
description = "Filters out hosts with less CPUs than VM's CPUs"
)
public class CPUPolicyUnit extends PolicyUnitImpl {
private static final Logger log = LoggerFactory.getLogger(CPUPolicyUnit.class);
public CPUPolicyUnit(PolicyUnit policyUnit,
PendingResourceManager pendingResourceManager) {
super(policyUnit, pendingResourceManager);
}
@Override
public List<VDS> filter(Cluster cluster, List<VDS> hosts, VM vm, Map<String, String> parameters, PerHostMessages messages) {
List<VDS> list = new ArrayList<>();
for (VDS vds : hosts) {
Integer cores = SlaValidator.getEffectiveCpuCores(vds, cluster.getCountThreadsAsCores());
if (cores != null && vm.getNumOfCpus(false) > cores) {
messages.addMessage(vds.getId(), EngineMessage.VAR__DETAIL__NOT_ENOUGH_CORES.toString());
log.debug("Host '{}' has less cores ({}) than vm cores ({})",
vds.getName(),
cores,
vm.getNumOfCpus());
continue;
}
list.add(vds);
}
return list;
}
}