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110 lines
3.1 KiB
Java
110 lines
3.1 KiB
Java
package com.commafeed.backend.services;
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import java.util.Calendar;
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import java.util.List;
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import java.util.Set;
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import javax.ejb.Stateless;
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import javax.inject.Inject;
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import org.apache.commons.lang.ObjectUtils;
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import org.apache.commons.lang.StringUtils;
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import com.commafeed.backend.MetricsBean;
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import com.commafeed.backend.dao.FeedEntryDAO;
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import com.commafeed.backend.dao.FeedEntryStatusDAO;
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import com.commafeed.backend.dao.FeedSubscriptionDAO;
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import com.commafeed.backend.feeds.FeedUtils;
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import com.commafeed.backend.model.Feed;
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import com.commafeed.backend.model.FeedEntry;
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import com.commafeed.backend.model.FeedEntryContent;
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import com.commafeed.backend.model.FeedEntryStatus;
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import com.commafeed.backend.model.FeedSubscription;
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import com.google.common.collect.Lists;
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@Stateless
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public class FeedUpdateService {
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@Inject
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FeedSubscriptionDAO feedSubscriptionDAO;
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@Inject
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FeedEntryDAO feedEntryDAO;
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@Inject
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FeedEntryStatusDAO feedEntryStatusDAO;
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@Inject
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MetricsBean metricsBean;
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public void updateEntry(Feed feed, FeedEntry entry,
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List<FeedSubscription> subscriptions) {
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FeedEntry foundEntry = findEntry(
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feedEntryDAO.findByGuid(entry.getGuid()), entry);
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FeedEntry update = null;
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if (foundEntry == null) {
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handleEntry(feed, entry);
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entry.setInserted(Calendar.getInstance().getTime());
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entry.getFeeds().add(feed);
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update = entry;
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} else {
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if (!findFeed(foundEntry.getFeeds(), feed)) {
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foundEntry.getFeeds().add(feed);
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update = foundEntry;
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}
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}
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if (update != null) {
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List<FeedEntryStatus> statusUpdateList = Lists.newArrayList();
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for (FeedSubscription sub : subscriptions) {
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FeedEntryStatus status = new FeedEntryStatus();
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status.setEntry(update);
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status.setSubscription(sub);
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statusUpdateList.add(status);
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}
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feedEntryDAO.saveOrUpdate(update);
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feedEntryStatusDAO.saveOrUpdate(statusUpdateList);
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metricsBean.entryUpdated(statusUpdateList.size());
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}
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}
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private FeedEntry findEntry(List<FeedEntry> existingEntries, FeedEntry entry) {
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FeedEntry found = null;
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for (FeedEntry existing : existingEntries) {
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if (StringUtils.equals(entry.getGuid(), existing.getGuid())
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&& StringUtils.equals(entry.getUrl(), existing.getUrl())) {
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found = existing;
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break;
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}
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}
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return found;
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}
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private boolean findFeed(Set<Feed> feeds, Feed feed) {
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boolean found = false;
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for (Feed existingFeed : feeds) {
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if (ObjectUtils.equals(existingFeed.getId(), feed.getId())) {
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found = true;
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break;
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}
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}
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return found;
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}
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private void handleEntry(Feed feed, FeedEntry entry) {
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String baseUri = feed.getLink();
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FeedEntryContent content = entry.getContent();
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content.setEnclosureUrl(FeedUtils.truncate(content.getEnclosureUrl(),
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2048));
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content.setContent(FeedUtils.handleContent(content.getContent(),
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baseUri));
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String title = FeedUtils.handleContent(content.getTitle(), baseUri);
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content.setTitle(FeedUtils.truncate(title, 2048));
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entry.setAuthor(FeedUtils.truncate(entry.getAuthor(), 128));
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}
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}
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