Adobe Successfully added to favourites

gistfile1.java

/**
 * Track the action of a successful added to favourites user action.
 *
 * @param contentId - The content id of the item just added to favourites
 */
public void trackAddedToFavourites(String contentId) {
    Preconditions.checkNotNull(contentId);

    HashMap<String, Object> contextData = new HashMap<>();
    contextData.put("video.id", contentId);
    contextData.put("action.event", "favourites");

    Analytics.trackAction("Add to favorites", contextData);
}