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Diffstat (limited to 'sca-java-1.x/branches/sca-java-0.91/samples/feed-aggregator/src/main/java/feed/AggregatorImpl.java')
-rw-r--r-- | sca-java-1.x/branches/sca-java-0.91/samples/feed-aggregator/src/main/java/feed/AggregatorImpl.java | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/sca-java-1.x/branches/sca-java-0.91/samples/feed-aggregator/src/main/java/feed/AggregatorImpl.java b/sca-java-1.x/branches/sca-java-0.91/samples/feed-aggregator/src/main/java/feed/AggregatorImpl.java new file mode 100644 index 0000000000..6bb418067a --- /dev/null +++ b/sca-java-1.x/branches/sca-java-0.91/samples/feed-aggregator/src/main/java/feed/AggregatorImpl.java @@ -0,0 +1,76 @@ +/* + * 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 feed; + +import java.util.ArrayList; +import java.util.List; + +import org.apache.tuscany.sca.binding.feed.Feed; +import org.osoa.sca.annotations.Property; +import org.osoa.sca.annotations.Reference; + +import com.sun.syndication.feed.synd.SyndEntry; +import com.sun.syndication.feed.synd.SyndFeed; +import com.sun.syndication.feed.synd.SyndFeedImpl; + +/** + * Implementation of an SCA component that aggregates several + * Atom and RSS feeds. + * + * @version $Rev$ $Date$ + */ +public class AggregatorImpl implements Feed { + + @Reference + public Feed feed1; + @Reference + public Feed feed2; + @Reference(required = false) + public Sort sort; + + @Property + public String feedTitle = "Aggregated Feed"; + @Property + public String feedDescription = "Anonymous Aggregated Feed"; + @Property + public String feedAuthor = "anonymous"; + + @SuppressWarnings("unchecked") + public SyndFeed get(String uri) { + + // Create a new Feed + SyndFeed feed = new SyndFeedImpl(); + feed.setTitle(feedTitle); + feed.setDescription(feedDescription); + feed.setAuthor(feedAuthor); + feed.setLink(uri); + + // Aggregate entries from feed1 and feed2 + List<SyndEntry> entries = new ArrayList<SyndEntry>(); + entries.addAll(feed1.get(null).getEntries()); + entries.addAll(feed2.get(null).getEntries()); + + // Sort entries by published date + if (sort != null) + feed.setEntries(sort.sort(entries)); + else + feed.setEntries(entries); + return feed; + } +} |