/**
* Copyright 2010 Molindo GmbH
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package at.molindo.notify.channel.feed;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
import at.molindo.notify.model.IChannelPreferences;
import at.molindo.notify.model.IPreferences;
import at.molindo.notify.model.Message;
import at.molindo.notify.model.Params;
import at.molindo.notify.render.IRenderService.RenderException;
import at.molindo.utils.data.Hash;
import com.google.common.collect.Lists;
import com.sun.syndication.feed.WireFeed;
import com.sun.syndication.feed.atom.Content;
import com.sun.syndication.feed.atom.Entry;
import com.sun.syndication.feed.atom.Feed;
import com.sun.syndication.feed.atom.Person;
import com.sun.syndication.io.FeedException;
public abstract class AbstractFeedChannel extends AbstractPullChannel {
private static final org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(AbstractFeedChannel.class);
private String _authorName;
private String _feedTitle;
@Override
protected String pull(List<Message> messages, Date lastModified, IChannelPreferences cPrefs, IPreferences prefs)
throws PullException {
try {
return FeedUtils.toFeedXml(toFeed(messages, lastModified, prefs, cPrefs));
} catch (FeedException e) {
throw new PullException("failed to serialize feed", e);
} catch (RenderException e) {
log.info("failed to render feed", e);
return null;
}
}
public WireFeed toFeed(List<Message> messages, Date lastModified, IPreferences prefs, IChannelPreferences cPrefs)
throws RenderException {
final Feed f = new Feed("atom_1.0");
// TODO allow rendered titles
f.setTitle(_feedTitle);
f.setUpdated(lastModified == null ? new Date() : lastModified);
Person author = new Person();
author.setName(_authorName);
f.setAuthors(Arrays.asList(author));
final List<Entry> entries = Lists.newArrayList();
for (final Message msg : messages) {
final Entry e = new Entry();
final Content c = new Content();
c.setType("text/html");
c.setValue(msg.getHtml());
e.setId(Hash.md5(msg.getSubject()).toHex());
e.setUpdated(new Date()); // TODO updated date? not easy ...
e.setTitle(msg.getSubject());
e.setContents(Arrays.asList(c));
entries.add(e);
}
f.setEntries(entries);
return f;
}
@Override
public boolean isConfigured(Params params) {
// TODO validation
return super.isConfigured(params);
}
public String getAuthorName() {
return _authorName;
}
public void setAuthorName(String authorName) {
_authorName = authorName;
}
public String getFeedTitle() {
return _feedTitle;
}
public void setFeedTitle(String feedTitle) {
_feedTitle = feedTitle;
}
}