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Java > Open Source Codes > org > riotfamily > cachius > spring > CachingView


1 /* ***** BEGIN LICENSE BLOCK *****
2  * Version: MPL 1.1
3  * The contents of this file are subject to the Mozilla Public License Version
4  * 1.1 (the "License"); you may not use this file except in compliance with
5  * the License. You may obtain a copy of the License at
6  * http://www.mozilla.org/MPL/
7  *
8  * Software distributed under the License is distributed on an "AS IS" basis,
9  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
10  * for the specific language governing rights and limitations under the
11  * License.
12  *
13  * The Original Code is Riot.
14  *
15  * The Initial Developer of the Original Code is
16  * Neteye GmbH.
17  * Portions created by the Initial Developer are Copyright (C) 2006
18  * the Initial Developer. All Rights Reserved.
19  *
20  * Contributor(s):
21  * Felix Gnass [fgnass at neteye dot de]
22  *
23  * ***** END LICENSE BLOCK ***** */
24 package org.riotfamily.cachius.spring;
25
26 import java.util.Map JavaDoc;
27
28 import javax.servlet.http.HttpServletRequest JavaDoc;
29 import javax.servlet.http.HttpServletResponse JavaDoc;
30
31 import org.apache.commons.logging.Log;
32 import org.apache.commons.logging.LogFactory;
33 import org.riotfamily.cachius.ItemUpdater;
34 import org.springframework.web.servlet.View;
35
36
37 /**
38  * View implementation that is used as wrapper for views returned by a
39  * cacheable controller.
40  *
41  * @author Felix Gnass
42  */
43 public class CachingView implements View {
44
45     private Log log = LogFactory.getLog(CachingView.class);
46     
47     private View view;
48     
49     private HttpServletResponse JavaDoc response;
50     
51     private ItemUpdater cacheItemUpdate;
52     
53     public CachingView(View view, HttpServletResponse JavaDoc response,
54             ItemUpdater cacheItemUpdate) {
55         
56         this.view = view;
57         this.response = response;
58         this.cacheItemUpdate = cacheItemUpdate;
59     }
60     
61     public String JavaDoc getContentType() {
62         return view.getContentType();
63     }
64     
65     /**
66      */
67     public void render(Map JavaDoc model, HttpServletRequest JavaDoc request,
68             HttpServletResponse JavaDoc response) throws Exception JavaDoc {
69         
70         if (view != null) {
71             view.render(model, request, this.response);
72         }
73         else {
74             log.debug("No view found!");
75         }
76         this.response.flushBuffer();
77         cacheItemUpdate.updateCacheItem();
78     }
79
80 }
81
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