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only allow one thread to update entries for a feed, avoids duplicates if two feeds containing the same entry are updating at the same time

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Athou
2013-04-26 18:53:48 +02:00
parent aa3baf5007
commit 56ba907ec5
3 changed files with 79 additions and 56 deletions
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33
src/main/java/com/commafeed/backend/feeds/FeedRefreshUpdater.java Normal file
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package com.commafeed.backend.feeds;
import java.util.Collection;
import javax.ejb.Asynchronous;
import javax.ejb.Stateless;
import javax.inject.Inject;
import org.apache.commons.collections.CollectionUtils;
import com.commafeed.backend.dao.FeedDAO;
import com.commafeed.backend.model.Feed;
import com.commafeed.backend.model.FeedEntry;
import com.commafeed.backend.services.FeedUpdateService;
@Stateless
public class FeedRefreshUpdater {
@Inject
FeedUpdateService feedUpdateService;
@Inject
FeedDAO feedDAO;
@Asynchronous
public void updateEntries(Feed feed, Collection<FeedEntry> entries) {
if (CollectionUtils.isNotEmpty(entries)) {
feedUpdateService.updateEntries(feed, entries);
}
feedDAO.update(feed);
}
}