public synchronized Collection listInstances()

in src/main/java/org/apache/sling/discovery/base/connectors/announcement/AnnouncementRegistryImpl.java [585:602]

• 16 lines of code
• 3 McCabe index (conditional complexity)

    public synchronized Collection<InstanceDescription> listInstances(final ClusterView localClusterView) {
        logger.debug("listInstances: start. localClusterView: {}", localClusterView);
        final Collection<InstanceDescription> instances = new LinkedList<>();

        final Collection<Announcement> announcements = listAnnouncementsInSameCluster(localClusterView);
        if (announcements == null) {
            logger.debug("listInstances: no announcement found. end. instances: {}", instances);
            return instances;
        }

        for (Iterator<Announcement> it = announcements.iterator(); it.hasNext();) {
            final Announcement announcement = it.next();
            logger.debug("listInstances: adding announcement: {}", announcement);
            instances.addAll(announcement.listInstances());
        }
        logger.debug("listInstances: announcements added. end. instances: {}", instances);
        return instances;
    }