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Diffstat (limited to 'java/sca-contrib/samples/feed-aggregator-webapp/src/main/java/feed/AggregatorImpl.java')
| -rw-r--r-- | java/sca-contrib/samples/feed-aggregator-webapp/src/main/java/feed/AggregatorImpl.java | 178 |
1 files changed, 0 insertions, 178 deletions
diff --git a/java/sca-contrib/samples/feed-aggregator-webapp/src/main/java/feed/AggregatorImpl.java b/java/sca-contrib/samples/feed-aggregator-webapp/src/main/java/feed/AggregatorImpl.java deleted file mode 100644 index 2c90c0db8c..0000000000 --- a/java/sca-contrib/samples/feed-aggregator-webapp/src/main/java/feed/AggregatorImpl.java +++ /dev/null @@ -1,178 +0,0 @@ -/* - * 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.io.ByteArrayInputStream; -import java.io.ByteArrayOutputStream; -import java.io.OutputStreamWriter; -import java.util.ArrayList; -import java.util.Iterator; -import java.util.List; - -import org.apache.abdera.Abdera; -import org.apache.abdera.factory.Factory; -import org.apache.abdera.model.Document; -import org.apache.abdera.model.Entry; -import org.apache.abdera.model.Feed; -import org.apache.abdera.model.Person; -import org.apache.abdera.parser.Parser; -import org.apache.tuscany.sca.binding.atom.collection.Collection; -import org.apache.tuscany.sca.binding.atom.collection.NotFoundException; -import org.oasisopen.sca.annotation.Property; -import org.oasisopen.sca.annotation.Reference; - -import com.sun.syndication.feed.synd.SyndFeed; -import com.sun.syndication.feed.synd.SyndFeedImpl; -import com.sun.syndication.io.SyndFeedOutput; - -/** - * Implementation of an SCA component that aggregates several - * Atom and RSS feeds. - * - * @version $Rev$ $Date$ - */ -public class AggregatorImpl implements org.apache.tuscany.sca.binding.atom.collection.Collection { - - @Reference(required = false) - public Collection atomFeed1; - @Reference(required = false) - public Collection atomFeed2; - - @Reference(required = false) - public org.apache.tuscany.sca.binding.rss.collection.Collection rssFeed1; - @Reference(required = false) - public org.apache.tuscany.sca.binding.rss.collection.Collection rssFeed2; - - @Reference(required = false) - public Sort sort; - - @Property - public String feedTitle = "Aggregated Feed"; - @Property - public String feedDescription = "Anonymous Aggregated Feed"; - @Property - public String feedAuthor = "anonymous"; - - public Feed getFeed() { - - // Create a new Feed - Factory factory = Abdera.getNewFactory(); - Feed feed = factory.newFeed(); - feed.setTitle(feedTitle); - feed.setSubtitle(feedDescription); - Person author = factory.newAuthor(); - author.setName(feedAuthor); - feed.addAuthor(author); - feed.addLink("http://tuscany.apache.org", "alternate"); - - // Aggregate entries from atomFeed1, atomFeed2, rssFeed1 and rssFeed2 - List<Entry> entries = new ArrayList<Entry>(); - if (atomFeed1 != null) { - try { - entries.addAll(atomFeed1.getFeed().getEntries()); - } catch (Exception e) {} - } - if (atomFeed2 != null) { - try { - entries.addAll(atomFeed2.getFeed().getEntries()); - } catch (Exception e) {} - } - if (rssFeed1 != null) { - try { - entries.addAll(atomFeed(rssFeed1.getFeed()).getEntries()); - } catch (Exception e) {} - } - if (rssFeed2 != null) { - try { - entries.addAll(atomFeed(rssFeed2.getFeed()).getEntries()); - } catch (Exception e) {} - } - - // Sort entries by published date - if (sort != null) { - entries = sort.sort(entries); - } - - // Add the entries to the new feed - for (Entry entry: entries) { - feed.addEntry(entry); - } - - return feed; - } - - public Feed query(String queryString) { - Factory factory = Abdera.getNewFactory(); - Feed feed = factory.newFeed(); - feed.setTitle(feedTitle); - feed.setSubtitle(feedDescription); - Person author = factory.newAuthor(); - author.setName(feedAuthor); - feed.addAuthor(author); - feed.addLink("http://tuscany.apache.org", "alternate"); - - Feed allFeed = getFeed(); - if (queryString.startsWith("title=")) { - String title = queryString.substring(6); - - for (Entry entry: allFeed.getEntries()) { - if (entry.getTitle().contains(title)) { - feed.addEntry(entry); - } - } - } - return feed; - } - - public void delete(String id) throws NotFoundException { - } - - public Entry get(String id) throws NotFoundException { - return null; - } - - public Entry post(Entry entry) { - return null; - } - - public void put(String id, Entry entry) throws NotFoundException { - } - - /** - * Convert a ROME feed to an Abdera feed. - * - * @param romeFeed - * @return - */ - private static Feed atomFeed(SyndFeed syndFeed) { - ByteArrayOutputStream bos = new ByteArrayOutputStream(); - - syndFeed.setFeedType("atom_1.0"); - SyndFeedOutput syndOutput = new SyndFeedOutput(); - try { - syndOutput.output(syndFeed, new OutputStreamWriter(bos)); - } catch (Exception e) { - throw new RuntimeException(e); - } - Parser parser = Abdera.getNewParser(); - Document<Feed> document = parser.parse(new ByteArrayInputStream(bos.toByteArray())); - - return document.getRoot(); - } -} |