/*
* 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 com.tuscanyscatours.blog.feed.impl;
import java.util.List;
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.tuscany.sca.binding.atom.collection.NotFoundException;
import com.tuscanyscatours.blog.BlogPost;
/**
* An Atom feed that implements the org.apache.tuscany.sca.binding.atom.collection.Collection
* interface and uses the Atom APIs to construct the Atom feed.
*/
public class AtomBlogFeedImpl extends BaseBlogFeedImpl implements
org.apache.tuscany.sca.binding.atom.collection.Collection {
/**
* Gets an Atom feed containing all the blog posts.
*
* @return An Atom feed containing all the blog posts.
*/
public Feed getFeed() {
// Create SCA Tours blog Atom feed
final Factory factory = Abdera.getNewFactory();
final Feed feed = factory.newFeed();
feed.setTitle(FEED_TITLE);
feed.setSubtitle(FEED_DESCRIPTION);
feed.addAuthor(FEED_AUTHOR);
// Get all blog posts and convert to Atom entries
final List<BlogPost> blogEntries = getAllBlogPosts();
for (BlogPost blogEntry : blogEntries) {
final Entry entry = factory.newEntry();
entry.setId(nextBlogID());
entry.addAuthor(blogEntry.getAuthor());
entry.setTitle(blogEntry.getTitle());
entry.setContentAsHtml(blogEntry.getContent());
entry.setUpdated(blogEntry.getUpdated());
entry.addLink(blogEntry.getLink());
feed.addEntry(entry);
}
return feed;
}
/**
* 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");
}
}