@SafeVarargs
private static <U extends AbstractElement.Update, T extends AbstractElement<?, U>> void install(
Inventory inventory,
Set<Subscription> subscriptions,
Class<T> entityClass,
MessageSender sender,
Action<?, T>... additionalActions) {
installAction(inventory, subscriptions, entityClass, sender, Action.created());
installAction(inventory, subscriptions, entityClass, sender, Action.updated());
installAction(inventory, subscriptions, entityClass, sender, Action.deleted());
for (Action<?, T> a : additionalActions) {
installAction(inventory, subscriptions, entityClass, sender, a);
}
}
public static InventoryEvent<?> from(Action<?, ?> action, Object object) {
if (object == null) {
throw new IllegalArgumentException("object == null");
}
if (action == null) {
throw new IllegalArgumentException("action == null");
}
if (object instanceof Tenant) {
return new TenantEvent(action.asEnum(), (Tenant) object);
} else if (object instanceof Environment) {
return new EnvironmentEvent(action.asEnum(), (Environment) object);
} else if (object instanceof Feed) {
return new FeedEvent(action.asEnum(), (Feed) object);
} else if (object instanceof Metric) {
return new MetricEvent(action.asEnum(), (Metric) object);
} else if (object instanceof MetricType) {
return new MetricTypeEvent(action.asEnum(), (MetricType) object);
} else if (object instanceof Resource) {
return new ResourceEvent(action.asEnum(), (Resource) object);
} else if (object instanceof ResourceType) {
return new ResourceTypeEvent(action.asEnum(), (ResourceType) object);
} else if (object instanceof Relationship) {
return new RelationshipEvent(action.asEnum(), (Relationship) object);
} else if (object instanceof DataEntity) {
return new DataEntityEvent(action.asEnum(), (DataEntity) object);
} else if (object instanceof Action.Update) {
@SuppressWarnings("unchecked")
AbstractElement<?, AbstractElement.Update> updated =
(AbstractElement<?, AbstractElement.Update>) ((Action.Update) object).getOriginalEntity();
updated.update().with((AbstractElement.Update) ((Action.Update) object).getUpdate());
// TODO should we instead send the whole update object? No time for that now, but it'd be
// preferable I think
return from(action, updated);
} else {
throw new IllegalArgumentException("Unsupported entity type: " + object.getClass());
}
}
private void install() {
install(inventory, subscriptions, Tenant.class, messageSender);
install(
inventory, subscriptions, ResourceType.class, messageSender, Action.identityHashChanged());
install(
inventory, subscriptions, MetricType.class, messageSender, Action.identityHashChanged());
install(inventory, subscriptions, Environment.class, messageSender, Action.copied());
install(
inventory,
subscriptions,
Feed.class,
messageSender,
Action.registered(),
Action.identityHashChanged());
install(inventory, subscriptions, Resource.class, messageSender, Action.identityHashChanged());
install(inventory, subscriptions, Metric.class, messageSender, Action.identityHashChanged());
install(inventory, subscriptions, Relationship.class, messageSender);
install(
inventory, subscriptions, DataEntity.class, messageSender, Action.identityHashChanged());
}
