/*

  * 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;

 import java.util.Date;

 import java.util.Locale;

 import org.jdom.Element;

 /**

  * Default implemmentation of a FeedParserListener with noop methods.  This can

  * be used as a base class for new implementations which do not need most of the

  * functionality of a FeedParserListener.

  * 

  * Its recommended (but not required) that implementors extend this interface to

  * that when new methods are added to the FeedParserListener that upgrades to

  * this library do not break your application.

  * 

  * @see FeedParserListener 

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

  * @version $Id: DefaultFeedParserListener.java 373614 2006-01-30 22:31:21Z mvdb $

  */

 public abstract class DefaultFeedParserListener implements FeedParserListener,

                                                            MetaFeedParserListener,

                                                            ModContentFeedParserListener,

                                                            XHTMLFeedParserListener,

                                                            ContentFeedParserListener {

     private Object context = null;

     public void onFeedVersion( FeedVersion version ) throws FeedParserException {}

     public void init() throws FeedParserException {}

     public void setContext( Object context ) throws FeedParserException {

         this.context = context;

     }

     public Object getContext() throws FeedParserException {

         return this.context;

     }

     public void onChannel( FeedParserState state,

                            String title,

                            String link,

                            String description ) throws FeedParserException {}

     public void onChannelEnd() throws FeedParserException { }

     public void onImage( FeedParserState state,

                          String title,

                          String link,

                          String url ) throws FeedParserException {}

     public void onImageEnd() throws FeedParserException {}

     public void onItem( FeedParserState state,

                         String title,

                         String link,

                         String description,

                         String permalink ) throws FeedParserException { }

     public void onItemEnd() throws FeedParserException {}

     public void finished() throws FeedParserException {}

     // **** MetaFeedParserListener **********************************************

     public void onCopyright( FeedParserState state, String content ) throws FeedParserException {}

     public void onCopyrightEnd() throws FeedParserException {}

     /**

      * http://www.mnot.net/drafts/draft-nottingham-atom-format-00.html#rfc.section.3.2.8

      *

      * 

      */

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

     public void onCreatedEnd() throws FeedParserException {}

     public void onSubject( FeedParserState state, String content ) throws FeedParserException {}

     public void onSubjectEnd() throws FeedParserException {}

     /**

      * http://www.mnot.net/drafts/draft-nottingham-atom-format-00.html#rfc.section.3.2.7

      *

      * 

      */

     public void onIssued( FeedParserState state, String content ) throws FeedParserException {} 

     public void onIssuedEnd() throws FeedParserException {}

     public void onLocale( FeedParserState state, Locale locale ) throws FeedParserException {}

     public void onLocaleEnd() throws FeedParserException {}

     public void onGUID( FeedParserState state,

                         String value,

                         boolean isPermalink ) throws FeedParserException {}

     public void onGUIDEnd() throws FeedParserException{}

     public void onGenerator( FeedParserState state, String content ) throws FeedParserException {}

     public void onGeneratorEnd() throws FeedParserException {}

     public void onAuthor( FeedParserState state,

                           String name,

                           String email,

                           String resource ) throws FeedParserException {}

     public void onAuthorEnd() throws FeedParserException {}

     public void onComments( FeedParserState state,

                             String resource ) throws FeedParserException {}

     public void onCommentsEnd() throws FeedParserException {}

     public void onCommentsFeed( FeedParserState state,

                                 String resource ) throws FeedParserException {}

     public void onCommentsFeedEnd() throws FeedParserException {}

     // **** ModContentFeedParserListener ****************************************

     public void onContentEncoded( FeedParserState state,

                                   String value ) throws FeedParserException {}

     public void onContentEncodedEnd() throws FeedParserException {}

     public void onContentItem( FeedParserState state,

                                String format,

                                String encoding,

                                Element value ) throws FeedParserException {}

     public void onContentItemEnd() throws FeedParserException {}

     // **** XHTMLFeedParserListener *********************************************

     public void onXHTMLBody( FeedParserState state, Element value ) throws FeedParserException {}

     public void onXHTMLBodyEnd() throws FeedParserException {}

     // **** ContentFeedParserListener *******************************************

     public void onContent( FeedParserState state,

                            String type,

                            String format,

                            String encoding,

                            String mode,

                            String value,

                            boolean isSummary ) throws FeedParserException {}

     public void onContentEnd() throws FeedParserException {}

 }