public static FleetStateStats readClusterState(final AmazonEC2 ec2, final String fleetId) {
String token = null;
final Set<String> instances = new HashSet<String>();
do {
final DescribeSpotFleetInstancesRequest req = new DescribeSpotFleetInstancesRequest();
req.setSpotFleetRequestId(fleetId);
req.setNextToken(token);
final DescribeSpotFleetInstancesResult res = ec2.describeSpotFleetInstances(req);
for (final ActiveInstance instance : res.getActiveInstances()) {
instances.add(instance.getInstanceId());
}
token = res.getNextToken();
} while (token != null);
final DescribeSpotFleetRequestsRequest req = new DescribeSpotFleetRequestsRequest();
req.setSpotFleetRequestIds(Collections.singleton(fleetId));
final DescribeSpotFleetRequestsResult fleet = ec2.describeSpotFleetRequests(req);
if (fleet.getSpotFleetRequestConfigs().isEmpty())
throw new IllegalStateException("Fleet " + fleetId + " can't be described");
final SpotFleetRequestConfig fleetConfig = fleet.getSpotFleetRequestConfigs().get(0);
return new FleetStateStats(
fleetId,
fleetConfig.getSpotFleetRequestConfig().getTargetCapacity(),
fleetConfig.getSpotFleetRequestState(),
instances);
}
@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null) return false;
if (obj instanceof DescribeSpotFleetInstancesRequest == false) return false;
DescribeSpotFleetInstancesRequest other = (DescribeSpotFleetInstancesRequest) obj;
if (other.getSpotFleetRequestId() == null ^ this.getSpotFleetRequestId() == null) return false;
if (other.getSpotFleetRequestId() != null
&& other.getSpotFleetRequestId().equals(this.getSpotFleetRequestId()) == false)
return false;
if (other.getNextToken() == null ^ this.getNextToken() == null) return false;
if (other.getNextToken() != null && other.getNextToken().equals(this.getNextToken()) == false)
return false;
if (other.getMaxResults() == null ^ this.getMaxResults() == null) return false;
if (other.getMaxResults() != null
&& other.getMaxResults().equals(this.getMaxResults()) == false) return false;
return true;
}