PlanetManager pmgr = PlanetFactory.getPlanet().getPlanetManager();
UserManager userManager = WebloggerFactory.getWeblogger().getUserManager();
// first, make sure there is an "all" pmgr group
Planet planetObject = pmgr.getPlanetById("zzz_default_planet_zzz");
PlanetGroup group = pmgr.getGroup(planetObject, "all");
if(group == null) {
group = new PlanetGroup();
group.setPlanet(planetObject);
group.setHandle("all");
group.setTitle("all");
pmgr.saveGroup(group);
}
// walk through all enable weblogs and add/update subs as needed
List liveUserFeeds = new ArrayList();
List<Weblog> websites = userManager.getWebsites(null, Boolean.TRUE, Boolean.TRUE, null, null, 0, -1);
for ( Weblog weblog : websites ) {
log.debug("processing weblog - "+weblog.getHandle());
String feedUrl = "weblogger:"+weblog.getHandle();
// add feed url to the "live" list
liveUserFeeds.add(feedUrl);
// if sub already exists then update it, otherwise add it
Subscription sub = pmgr.getSubscription(feedUrl);
if (sub == null) {
log.debug("ADDING feed: "+feedUrl);
sub = new Subscription();
sub.setTitle(weblog.getName());
sub.setFeedURL(feedUrl);
sub.setSiteURL(WebloggerFactory.getWeblogger().getUrlStrategy().getWeblogURL(weblog, null, true));
sub.setAuthor(weblog.getName());
sub.setLastUpdated(new Date(0));
pmgr.saveSubscription(sub);
group.getSubscriptions().add(sub);
pmgr.saveGroup(group);
} else {
log.debug("UPDATING feed: "+feedUrl);
sub.setTitle(weblog.getName());
sub.setAuthor(weblog.getName());
pmgr.saveSubscription(sub);
}
// save as we go
PlanetFactory.getPlanet().flush();
}
// new subs added, existing subs updated, now delete old subs
Set<Subscription> deleteSubs = new HashSet();
Set<Subscription> subs = group.getSubscriptions();
for( Subscription sub : subs ) {
// only delete subs from the group if ...
// 1. they are local
// 2. they are no longer listed as a weblog
if (sub.getFeedURL().startsWith("weblogger:") &&
!liveUserFeeds.contains(sub.getFeedURL())) {
deleteSubs.add(sub);
}
}
// now go back through deleteSubs and do actual delete
// this is required because deleting a sub in the loop above
// causes a ConcurrentModificationException because we can't
// modify a collection while we iterate over it
for( Subscription deleteSub : deleteSubs ) {
log.debug("DELETING feed: "+deleteSub.getFeedURL());
pmgr.deleteSubscription(deleteSub);
group.getSubscriptions().remove(deleteSub);
}
// all done, lets save
pmgr.saveGroup(group);
PlanetFactory.getPlanet().flush();