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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 scatours.blog.feed;
import java.util.Date;
import java.util.concurrent.atomic.AtomicInteger;
import org.apache.abdera.Abdera;
import org.apache.abdera.factory.Factory;
import org.apache.abdera.model.Entry;
import org.apache.abdera.model.Feed;
import org.apache.abdera.model.Person;
import org.apache.tuscany.sca.binding.atom.collection.NotFoundException;
public class BlogFeedImpl implements org.apache.tuscany.sca.binding.atom.collection.Collection {
/**
* Title of the blog.feed.
*/
private static final String FEED_TITLE = "Tuscany SCA Tours Blog Feed";
/**
* Description of the blog feed.
*/
private static final String FEED_DESCRIPTION = "Feed contianing the latest blog posts from Tuscany SCA Tours";
/**
* Author of the blog feed.
*/
private static final String FEED_AUTHOR = "SCA Tours CEO";
/**
* Used to generate unique IDs for the blog entries.
*/
private static final AtomicInteger ID_GEN = new AtomicInteger();
/**
* Gets a feed containing all the blog posts.
*
* @return A feed containing all the blog posts.
*/
public Feed getFeed() {
final Factory factory = Abdera.getNewFactory();
// Create SCA Tours blog feed
final Feed feed = factory.newFeed();
feed.setTitle(FEED_TITLE);
feed.setSubtitle(FEED_DESCRIPTION);
// Create blog author
final Person author = factory.newAuthor();
author.setName(FEED_AUTHOR);
feed.addAuthor(author);
// Create a sample entry
final Entry entry = factory.newEntry();
entry.setId(nextBlogID());
entry.addAuthor(FEED_AUTHOR);
entry.setTitle("Apache Tuscany in Action book features SCA Tours");
entry.setContentAsHtml("We are famous as SCA Tours has been featured in the Apache Tuscany in Action book published by Manning");
entry.setUpdated(new Date());
entry.addLink("http://www.manning.com/laws/");
feed.addEntry(entry);
return feed;
}
/**
* Generates the next blog entry ID.
*
* @return Next blog entry ID
*/
private String nextBlogID()
{
return Integer.toString(ID_GEN.incrementAndGet());
}
/**
* Query the feed.
*
* @param query The query
* @return Always returns null as method not implemented
*/
public Feed query(String query) {
// Not implemented
return null;
}
/**
* Posts a new entry to the blog.
*
* @param entry The new entry
* @return Always returns null as method not implemented
*/
public Entry post(Entry entry) {
// Not implemented
return null;
}
/**
* Gets the specified entry from the blog.
*
* @param id ID of the entry to get
* @return Not used
* @throws NotFoundException Always thrown as method not implemented
*/
public Entry get(String id) throws NotFoundException {
// Not implemented
throw new NotFoundException("You are not allowed to update entries");
}
/**
* Updates the specified entry on the blog.
*
* @param id ID of the entry to update
* @param entry The new entry
* @throws NotFoundException Always thrown as method not implemented
*/
public void put(String id, Entry entry) throws NotFoundException {
// Not implemented
throw new NotFoundException("You are not allowed to update entries");
}
/**
* Deletes the specified entry from the blog.
*
* @param id ID of the entry to delete
* @throws NotFoundException Always thrown as method not implemented
*/
public void delete(String id) throws NotFoundException {
// Not implemented
throw new NotFoundException("You are not allowed to delete entries");
}
}
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