/**
* Both Model and Set are oplog-only; they never pass the state on the wire, only the oplog; new
* replicas are booted with distilled oplog as well. So, this is the only point in the code that
* mutates the state of a Set.
*/
@SwarmOperation(kind = SwarmOperationKind.Logged)
public void change(FullSpec spec, JsonValue value) throws SwarmException {
value = this.distillOp(spec, value);
if (!value.isObject()) return;
JsonObject jo = (JsonObject) value;
for (JsonObject.Member entry : jo) {
String keySpecStr = entry.getName();
TypeIdSpec key_spec = new TypeIdSpec(keySpecStr);
JsonValue val = entry.getValue();
if (TRUE.equals(val)) {
T obj = this.host.get(key_spec);
this.objects.put(key_spec, obj);
obj.on(JsonValue.NULL, this.proxy);
} else if (FALSE.equals(val)) {
T obj = this.objects.get(key_spec);
if (obj != null) {
obj.off(this.proxy);
this.objects.remove(key_spec);
}
} else {
logger.warn("unexpected value: {}->{}", spec, value);
}
}
}
public void remove(T obj) throws SwarmException {
remove(obj.getTypeId());
}
/**
* Adds an object to the set.
*
* @param obj the object //TODO , its id or its specifier.
*/
public void add(T obj) throws SwarmException {
final TypeIdSpec key_spec = obj.getTypeId();
JsonObject changes = new JsonObject();
changes.set(key_spec.toString(), TRUE);
change(changes);
}