View Javadoc

1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    * 
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   * 
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.apache.portals.applications.rss;
18  
19  import java.io.IOException;
20  
21  import javax.portlet.ActionRequest;
22  import javax.portlet.ActionResponse;
23  import javax.portlet.PortletConfig;
24  import javax.portlet.PortletException;
25  import javax.portlet.RenderRequest;
26  import javax.portlet.RenderResponse;
27  
28  import org.apache.portals.applications.rss.servlets.SpringInitServlet;
29  import org.apache.portals.applications.transform.Transform;
30  import org.apache.portals.applications.transform.TransformCache;
31  import org.apache.portals.bridges.velocity.GenericVelocityPortlet;
32  import org.springframework.beans.factory.BeanFactory;
33  
34  
35  /***
36   * AbstractRssPortlet
37   * 
38   * @author <a href="mailto:taylor@apache.org">David Sean Taylor</a>
39   * @version $Id: AbstractRssPortlet.java 516448 2007-03-09 16:25:47Z ate $
40   */
41  public abstract class AbstractRssPortlet extends GenericVelocityPortlet
42  {
43      protected TransformCache cache;
44      protected Transform transform;
45  
46      public void init(PortletConfig config) throws PortletException
47      {
48          super.init(config);
49          BeanFactory factory = SpringInitServlet.getSpringFactory();
50          cache = (TransformCache)factory.getBean("transformCache");
51          transform = (Transform)factory.getBean("transform");           
52      }
53  
54      public void doEdit(RenderRequest request, RenderResponse response) throws PortletException, IOException
55      {
56          response.setContentType("text/html");        
57          doPreferencesEdit(request, response);
58      }
59  
60      /***
61       * Save the prefs
62       */
63      public void processAction(ActionRequest request, ActionResponse actionResponse) throws PortletException,
64              IOException
65      {
66          processPreferencesAction(request, actionResponse);
67          String url = request.getPreferences().getValue("url", "http://www.npr.org/rss/rss.php?topicId=4");
68          String stylesheet = getPortletConfig().getInitParameter("stylesheet");
69          String key = cache.constructKey(url, stylesheet); // TODO: use the entire parameter list        
70          cache.remove(key);
71      }
72      
73  }