/**
* @Title: handOver @Description: replace on chosen spot type with another unchosen spot type
*
* @param oldChosenType the old spot type
* @param newChosenType the new unchosen spot type
* @throws
*/
public synchronized void handOver(
InstanceTemplate oldChosenType, InstanceTemplate newChosenType) {
if (!spotGroups.containsKey(oldChosenType)) {
throw new IllegalArgumentException(oldChosenType.toString() + " not chosen");
}
if (spotGroups.containsKey(newChosenType)) {
throw new IllegalArgumentException(newChosenType.toString() + " already chosen");
}
Set<InstanceStatus> instances = spotGroups.remove(oldChosenType);
spotGroups.put(newChosenType, instances);
}
/**
* @Title: moveOrphanToType @Description: assign orphan in the spot type
*
* @param type the spot type to move to
* @return whether the operation is successful
* @throws
*/
public synchronized boolean moveOrphanToType(InstanceTemplate type) {
Set<InstanceStatus> group = spotGroups.get(type);
if (group == null) {
throw new IllegalArgumentException("non chosen spot type " + type.toString());
}
if (hasOrphan()) {
InstanceStatus instanceStatus = orphans.poll();
group.add(instanceStatus);
return true;
}
return false;
}