/*

  * Copyright 1999,2004 The Apache Software Foundation.

  * 

  * Licensed 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.commons.feedparser.example;

 import java.io.InputStream;

 import java.util.Date;

 import org.apache.commons.feedparser.DefaultFeedParserListener;

 import org.apache.commons.feedparser.FeedParser;

 import org.apache.commons.feedparser.FeedParserException;

 import org.apache.commons.feedparser.FeedParserFactory;

 import org.apache.commons.feedparser.FeedParserListener;

 import org.apache.commons.feedparser.FeedParserState;

 import org.apache.commons.feedparser.network.ResourceRequest;

 import org.apache.commons.feedparser.network.ResourceRequestFactory;

 /**

  * Example use of the FeedParser

  *

  * @author <a href="mailto:burton@apache.org">Kevin A. Burton (burtonator)</a>

  * @version $Id: HelloFeedParser.java 373622 2006-01-30 22:53:00Z mvdb $

  */

 public class HelloFeedParser {

     public static void main( String[] args ) throws Exception {

         //create a new FeedParser...

         FeedParser parser = FeedParserFactory.newFeedParser();

         //create a listener for handling our callbacks

         FeedParserListener listener = new DefaultFeedParserListener() {

                 public void onChannel( FeedParserState state,

                                        String title,

                                        String link,

                                        String description ) throws FeedParserException {

                     System.out.println( "Found a new channel: " + title );

                 }

                 public void onItem( FeedParserState state,

                                     String title,

                                     String link,

                                     String description,

                                     String permalink ) throws FeedParserException {

                     System.out.println( "Found a new published article: " + permalink );

                 }

                 public void onCreated( FeedParserState state, Date date ) throws FeedParserException {

                     System.out.println( "Which was created on: " + date );

                 }

             };

         //specify the feed we want to fetch

         String resource = "http://peerfear.org/rss/index.rss";

         if ( args.length == 1 )

             resource = args[0];

         System.out.println( "Fetching resource:" + resource );

         //use the FeedParser network IO package to fetch our resource URL

         ResourceRequest request = ResourceRequestFactory.getResourceRequest( resource );

         //grab our input stream

         InputStream is = request.getInputStream();

         //start parsing our feed and have the above onItem methods called

         parser.parse( listener, is, resource );

     }

 }