package org.apache.archiva.rss;
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
import java.util.ArrayList;
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.sun.syndication.feed.synd.SyndContent;
import com.sun.syndication.feed.synd.SyndContentImpl;
import com.sun.syndication.feed.synd.SyndEntry;
import com.sun.syndication.feed.synd.SyndEntryImpl;
import com.sun.syndication.feed.synd.SyndFeed;
import com.sun.syndication.feed.synd.SyndFeedImpl;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Service;
/**
* Generates RSS feeds.
*
*/
@Service("rssFeedGenerator#default")
@Scope("prototype")
public class RssFeedGenerator
{
private Logger log = LoggerFactory.getLogger( RssFeedGenerator.class );
// TODO: make configurable
public static String DEFAULT_FEEDTYPE = "rss_2.0";
public static String DEFAULT_LANGUAGE = "en-us";
public SyndFeed generateFeed( String title, String description, List<RssFeedEntry> dataEntries )
{
if( dataEntries.size() == 0 )
{
log.debug( "No updates found, feed not generated." );
return null;
}
SyndFeed feed = new SyndFeedImpl();
feed.setTitle( title );
feed.setDescription( description );
feed.setLanguage( DEFAULT_LANGUAGE );
feed.setPublishedDate( dataEntries.get( dataEntries.size() - 1 ).getPublishedDate() );
feed.setFeedType( DEFAULT_FEEDTYPE );
feed.setEntries( getEntries( dataEntries ) );
log.debug( "Finished generating the feed \'{}\'.", title );
return feed;
}
private List<SyndEntry> getEntries( List<RssFeedEntry> dataEntries )
{
List<SyndEntry> entries = new ArrayList<>();
SyndEntry entry;
SyndContent description;
for ( RssFeedEntry dataEntry : dataEntries )
{
entry = new SyndEntryImpl();
entry.setTitle( dataEntry.getTitle() );
entry.setPublishedDate( dataEntry.getPublishedDate() );
description = new SyndContentImpl();
description.setType( "text/plain" );
description.setValue( dataEntry.getDescription() );
entry.setDescription( description );
entries.add( entry );
}
return entries;
}
}