/* (non-Javadoc)
* <p>Title: doMonitoring</p>
* <p>Description: </p>
* @see auto_scaling.monitor.Monitor#doMonitoring()
*/
@Override
public void doMonitoring() {
SystemStatus systemStatus = SystemStatus.getSystemStatus();
Collection<InstanceStatus> instances =
InstanceFilter.getAttachedInstances(systemStatus.getAllInstances());
ApplicationBrokerManager applicationBrokerManager =
ApplicationBrokerManager.getApplicationBrokerManager();
CloudSimBroker cloudSimBroker = applicationBrokerManager.getCloudSimBroker();
String CPU = ResourceType.CPU.getName();
for (InstanceStatus instanceStatus : instances) {
String idString = instanceStatus.getId();
MonitoredVMex vm = (MonitoredVMex) cloudSimBroker.getVmById(Integer.parseInt(idString));
double utilization = vm.getCPUUtil();
instanceStatus.setResourceConsumptionValue(CPU, utilization);
}
if (instances.size() > 0) {
EventGenerator eventGenerator = EventGenerator.getEventGenerator();
Map<String, Object> data = new HashMap<String, Object>();
data.put(EventDataName.RESOURCE_TYPE, ResourceType.CPU);
Event newEvent = eventGenerator.generateEvent(Events.RESOURCE_REQUIREMENT_UPDATE_EVENT, data);
Queue<Event> eventQueue = EventQueueManager.getEventsQueue();
eventQueue.add(newEvent);
monitorLog.info(logFormatter.getGenerateEventLogString(newEvent, CPU));
}
}
/**
* @Title: getNominalChosenSpotGroup @Description: get all instances can be potential capacity in
* a spot group
*
* @param instanceTemplate the spot group
* @return all instances can be potential capacity in a spot group
* @throws
*/
public synchronized Collection<InstanceStatus> getNominalChosenSpotGroup(
InstanceTemplate instanceTemplate) {
Set<InstanceStatus> group = spotGroups.get(instanceTemplate);
if (group != null) {
return InstanceFilter.getNominalInstances(snapshot(group));
}
return null;
}
/**
* @Title: getNominalSpotGroups @Description: get all instances in spot groups that can be
* potential capacity
*
* @return all instances in spot groups that can be potential capacity
* @throws
*/
public synchronized Map<InstanceTemplate, Collection<InstanceStatus>> getNominalSpotGroups() {
Map<InstanceTemplate, Collection<InstanceStatus>> nominalSpotGroupsMap =
new HashMap<InstanceTemplate, Collection<InstanceStatus>>();
Map<InstanceTemplate, Set<InstanceStatus>> spotGroups = getSpotGroups();
for (Entry<InstanceTemplate, Set<InstanceStatus>> entry : spotGroups.entrySet()) {
nominalSpotGroupsMap.put(
entry.getKey(), InstanceFilter.getNominalInstances(entry.getValue()));
}
return nominalSpotGroupsMap;
}
/**
* @Title: getRunningInstancesIds @Description: get all running instances' ids
*
* @return all running instances' ids
* @throws
*/
public synchronized Collection<String> getRunningInstancesIds() {
List<String> instanceIds = new ArrayList<String>();
Collection<InstanceStatus> runningInstances = InstanceFilter.getRunningInstances(allInstances);
for (InstanceStatus instanceStatus : runningInstances) {
instanceIds.add(instanceStatus.getId());
}
return instanceIds;
}
/**
* @Title: getMaximumAvaliableCapacity @Description: get the number of maximum capacity
*
* @return the number of maximum capacity
* @throws
*/
public synchronized long getMaximumAvaliableCapacity() {
long capacity = 0;
Collection<InstanceStatus> attachedInstances =
InstanceFilter.getAttachedInstances(allInstances);
for (InstanceStatus instanceStatus : attachedInstances) {
InstanceTemplate instanceTemplate = instanceStatus.getType();
capacity += instanceTemplate.getMaximunCapacity();
}
return capacity;
}
/**
* @Title: getNominalCapacity @Description: get the number of capacity if all nominal instances
* are online
*
* @return
* @throws
*/
public synchronized long getNominalCapacity() {
FaultTolerantLevel ftLevel = FaultTolerantLevel.ZERO;
if (isSpotEnabled()) {
ftLevel = this.faultTolerantLevel;
}
long capacity = 0;
Collection<InstanceStatus> nominalInstances = InstanceFilter.getNominalInstances(allInstances);
for (InstanceStatus instanceStatus : nominalInstances) {
InstanceTemplate instanceTemplate = instanceStatus.getType();
capacity += instanceTemplate.getCapacity(ftLevel);
}
return capacity;
}
/**
* @Title: getAvailableCapacity @Description: get the number of current capacity
*
* @return the number of current capacity
* @throws
*/
public synchronized long getAvailableCapacity() {
FaultTolerantLevel ftLevel = FaultTolerantLevel.ZERO;
if (isSpotEnabled()) {
ftLevel = this.faultTolerantLevel;
}
long capacity = 0;
Collection<InstanceStatus> attachedInstances =
InstanceFilter.getAttachedInstances(allInstances);
for (InstanceStatus instanceStatus : attachedInstances) {
InstanceTemplate instanceTemplate = instanceStatus.getType();
if (instanceStatus instanceof OnDemandInstanceStatus) {
capacity += instanceTemplate.getCapacity(FaultTolerantLevel.ZERO);
} else {
capacity += instanceTemplate.getCapacity(ftLevel);
}
}
return capacity;
}
/**
* @Title: getNumOfAttachedInstances @Description: get the number of instances attached to the
* load balancer
*
* @return
* @throws
*/
public synchronized int getNumOfAttachedInstances() {
Collection<InstanceStatus> attachedInstances =
InstanceFilter.getAttachedInstances(allInstances);
return attachedInstances.size();
}
/**
* @Title: getNominalOnDemandInstances @Description: get all on demand instances can be potential
* capacity
*
* @return all on demand instances can be potential capacity
* @throws
*/
public synchronized Collection<InstanceStatus> getNominalOnDemandInstances() {
return InstanceFilter.getNominalInstances(new ArrayList<InstanceStatus>(onDemandInstances));
}