@Override
public void handle(StateContext state, SubCollectionReadCollectionContext ctx) {
String subCollection = ctx.term().getText();
EntityDictionary dictionary = state.getRequestScope().getDictionary();
try {
Set<PersistentResource> collection = resource.getRelation(subCollection); // Check if exists.
String entityName =
dictionary.getBinding(
dictionary.getParameterizedType(resource.getObject(), subCollection));
Class<?> entityClass = dictionary.getBinding(entityName);
if (entityClass == null) {
throw new IllegalArgumentException("Unknown type " + entityName);
}
final BaseState nextState;
if (collection instanceof SingleElementSet) {
PersistentResource record = collection.iterator().next();
nextState = new RecordTerminalState(subCollection, record);
} else {
nextState =
new CollectionTerminalState(
entityClass, Optional.of(resource), Optional.of(subCollection));
}
state.setState(nextState);
} catch (InvalidAttributeException e) {
throw new InvalidCollectionException(subCollection);
}
}
@Override
public boolean ok(PersistentResource<Parent> record) {
Parent parent = record.getObject();
if (parent.getChildren() != null && parent.getSpouses() != null) {
return true;
}
throw new IllegalStateException("Uninitialized " + parent);
}