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/*
* 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.
*/
package org.apache.tuscany.sca.demos.aggregator;
import java.io.InputStream;
import java.text.DateFormat;
import java.util.ArrayList;
import java.util.List;
import org.apache.tuscany.sca.binding.feed.collection.Collection;
import org.apache.tuscany.sca.binding.feed.collection.NotFoundException;
import org.apache.tuscany.sca.demos.aggregator.types.AlertType;
import org.apache.tuscany.sca.demos.aggregator.types.AlertsType;
import org.osoa.sca.annotations.Reference;
import org.osoa.sca.annotations.Service;
import com.sun.syndication.feed.atom.Entry;
import com.sun.syndication.feed.atom.Feed;
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;
/**
* Read all new alerts from the specified sources
*
* @version $Rev$ $Date$
*/
@Service(Collection.class)
public class AlertsFeedServiceImpl implements Collection {
private AlertsService alerts;
@Reference
public void alerts(AlertsService alerts) {
this.alerts = alerts;
}
DateFormat dateFormatter = DateFormat.getDateTimeInstance();
/**
* Return the alerts as a feed. Used by binding.feed
*
* @return the structure containing alerts
*/
public Feed getFeed() {
// Create a new Feed
SyndFeed feed = new SyndFeedImpl();
feed.setTitle("Apache Tuscant Feed Aggregator");
feed.setDescription("A sample showing an SCA application to aggregate various types of feeds");
feed.setAuthor("Apache Tuscany");
feed.setLink("http://incubator.apache.org/tuscany");
// Aggregate entries from feed1 and feed2
List<SyndEntry> entries = new ArrayList<SyndEntry>();
try {
AlertsType alerts = this.alerts.getAllNewAlerts("");
for( Object alertObject : alerts.getAlert() ){
AlertType alert = ((AlertType)alertObject);
SyndEntry entry = new SyndEntryImpl();
entry.setTitle(alert.getTitle());
//entry.(alert.getSummary());
entry.setLink(alert.getAddress());
entry.setPublishedDate(dateFormatter.parse(alert.getDate()));
entries.add(entry);
}
} catch(Exception ex) {
System.err.println("Exception " + ex.toString());
}
feed.setEntries(entries);
return (Feed)feed.createWireFeed("atom_1.0");
}
/**
* @see org.apache.tuscany.sca.binding.feed.Collection#delete(java.lang.String)
*/
public void delete(String id) throws NotFoundException {
}
/**
* @see org.apache.tuscany.sca.binding.feed.Collection#get(java.lang.String)
*/
public Entry get(String id) throws NotFoundException {
return null;
}
/**
* @see org.apache.tuscany.sca.binding.feed.Collection#post(com.sun.syndication.feed.atom.Entry)
*/
public Entry post(Entry entry) {
return null;
}
/**
* @see org.apache.tuscany.sca.binding.feed.Collection#postMedia(java.lang.String, java.lang.String, java.lang.String, java.io.InputStream)
*/
public Entry postMedia(String title, String slug, String contentType, InputStream media) {
return null;
}
/**
* @see org.apache.tuscany.sca.binding.feed.Collection#put(java.lang.String, com.sun.syndication.feed.atom.Entry)
*/
public Entry put(String id, Entry entry) throws NotFoundException {
return null;
}
/**
* @see org.apache.tuscany.sca.binding.feed.Collection#putMedia(java.lang.String, java.lang.String, java.io.InputStream)
*/
public Entry putMedia(String id, String contentType, InputStream media) throws NotFoundException {
return null;
}
}
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