@Override
  protected void addRequiredAlertProperties(Set<String> properties) {
    super.addRequiredAlertProperties(properties);

    properties.add(AlertResourceProvider.ALERT_ID);
    properties.add(AlertResourceProvider.ALERT_DEFINITION_NAME);
    properties.add(AlertResourceProvider.ALERT_MAINTENANCE_STATE);
    properties.add(AlertResourceProvider.ALERT_TEXT);
  }
{@inheritDoc}
<p/>
Additionally adds {@link AlertResourceProvider#ALERT_ID} and
{@link AlertResourceProvider#ALERT_DEFINITION_NAME}.
ambari-server/src/main/java/org/apache/ambari/server/api/query/render/AlertSummaryGroupedRenderer.java