small optimizations

This commit is contained in:
Athou
2013-04-22 10:23:53 +02:00
parent bb5d76109a
commit 839beb5d14

View File

@@ -4,6 +4,7 @@ import java.util.Calendar;
import java.util.List;
import java.util.Queue;
import javax.annotation.PostConstruct;
import javax.ejb.Lock;
import javax.ejb.LockType;
import javax.ejb.Singleton;
@@ -27,29 +28,30 @@ public class FeedRefreshTaskGiver {
@Inject
MetricsBean metricsBean;
private int backgroundThreads;
private Queue<Feed> queue = Queues.newConcurrentLinkedQueue();
@Lock(LockType.WRITE)
public void add(Feed feed) {
queue.add(feed);
feed.setLastUpdated(Calendar.getInstance().getTime());
feedDAO.update(feed);
@PostConstruct
public void init() {
backgroundThreads = applicationSettingsService.get()
.getBackgroundThreads();
}
@Lock(LockType.WRITE)
public Feed take() {
if (queue.peek() == null) {
Feed feed = queue.poll();
if (feed == null) {
List<Feed> feeds = feedDAO
.findNextUpdatable(50 * applicationSettingsService.get()
.getBackgroundThreads());
for (Feed feed : feeds) {
queue.add(feed);
feed.setLastUpdated(Calendar.getInstance().getTime());
.findNextUpdatable(50 * backgroundThreads);
for (Feed f : feeds) {
queue.add(f);
f.setLastUpdated(Calendar.getInstance().getTime());
}
feedDAO.update(feeds);
feed = queue.poll();
}
metricsBean.feedRefreshed();
return queue.poll();
return feed;
}
}