it.tidalwave.semantic.rss.RssFeed Maven / Gradle / Ivy
/***********************************************************************************************************************
*
* blueBill Core - open source birding
* Copyright (C) 2009-2011 by Tidalwave s.a.s. (http://www.tidalwave.it)
*
***********************************************************************************************************************
*
* 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.
*
***********************************************************************************************************************
*
* WWW: http://bluebill.tidalwave.it
* SCM: https://kenai.com/hg/bluebill~core-src
*
**********************************************************************************************************************/
package it.tidalwave.semantic.rss;
import it.tidalwave.role.SimpleComposite;
import it.tidalwave.role.spi.DefaultSimpleComposite;
import javax.annotation.Nonnull;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import it.tidalwave.util.Id;
import it.tidalwave.util.Key;
import it.tidalwave.util.Finder;
import it.tidalwave.util.NotFoundException;
import it.tidalwave.util.spi.SimpleFinderSupport;
import it.tidalwave.semantic.EntityWithProperties;
import it.tidalwave.semantic.document.Document;
import org.openide.util.Lookup;
import org.openide.util.lookup.Lookups;
import org.openide.util.lookup.ProxyLookup;
/***********************************************************************************************************************
*
* @author Fabrizio Giudici
* @version $Id$
*
**********************************************************************************************************************/
public class RssFeed extends EntityWithProperties
{
public RssFeed (final @Nonnull Id id)
{
super(id);
}
private RssFeed (final @Nonnull Id id,
final @Nonnull Map, Object> propertyMap,
final @Nonnull Object[] capabilities)
{
super(id, propertyMap, capabilities);
}
@Override @Nonnull
protected RssFeed clone (final @Nonnull Id id,
final @Nonnull Map, Object> propertyMap,
final @Nonnull Object[] capabilities)
{
return new RssFeed(id, propertyMap, capabilities);
}
@Override @Nonnull
protected Lookup createLookup()
{
final Finder finder = new SimpleFinderSupport("messages")
{
@Override @Nonnull
protected List computeResults()
{
try
{
return get(RssVocabulary.MESSAGES);
}
catch (NotFoundException e)
{
return Collections.emptyList();
}
}
};
final SimpleComposite composite = new DefaultSimpleComposite(finder);
return new ProxyLookup(Lookups.fixed(composite), super.createLookup());
}
}