private void handleOldMember(LocalDateTime now, Member member, Member oldMember) {
oldMember.updateWithDataFrom(member, now);
// process subsystems for the old member
Map<SubsystemId, Subsystem> unprocessedOldSubsystems = new HashMap<>();
for (Subsystem subsystem : oldMember.getAllSubsystems()) {
unprocessedOldSubsystems.put(subsystem.createKey(), subsystem);
}
for (Subsystem subsystem : member.getAllSubsystems()) {
Subsystem oldSubsystem = unprocessedOldSubsystems.get(subsystem.createKey());
if (oldSubsystem == null) {
// brand new item, add it
subsystem.getStatusInfo().setTimestampsForNew(now);
subsystem.setMember(oldMember);
oldMember.getAllSubsystems().add(subsystem);
} else {
oldSubsystem.getStatusInfo().setTimestampsForFetched(now);
}
unprocessedOldSubsystems.remove(subsystem.createKey());
}
// remaining old subsystems - that were not included in member.subsystems -
// are removed (if not already)
for (Subsystem oldToRemove : unprocessedOldSubsystems.values()) {
StatusInfo status = oldToRemove.getStatusInfo();
if (!status.isRemoved()) {
status.setTimestampsForRemoved(now);
}
}
}
