final Collection collection = broker.getCollection(uri);
//initialize configurations watcher trigger
if(collection != null) {
final CollectionConfigurationManager manager = getConfigurationManager();
final CollectionConfiguration collConf = manager.getOrCreateCollectionConfiguration(broker, collection);
final DocumentTriggerProxy triggerProxy = new DocumentTriggerProxy(ConfigurationDocumentTrigger.class); //, collection.getURI());
collConf.documentTriggers().add(triggerProxy);
}
}