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Java > Open Source Codes > org > ofbiz > webapp > ftl > OfbizContentTransform


1 /*
2  * $Id: OfbizContentTransform.java 5462 2005-08-05 18:35:48Z jonesde $
3  *
4  * Copyright (c) 2001-2005 The Open For Business Project - www.ofbiz.org
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included
14  * in all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
19  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
20  * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT
21  * OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
22  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23  *
24  */
25 package org.ofbiz.webapp.ftl;
26
27 import java.io.IOException JavaDoc;
28 import java.io.Writer JavaDoc;
29 import java.util.Map JavaDoc;
30
31 import javax.servlet.ServletContext JavaDoc;
32 import javax.servlet.http.HttpServletRequest JavaDoc;
33 import javax.servlet.http.HttpServletResponse JavaDoc;
34
35 import org.ofbiz.webapp.taglib.ContentUrlTag;
36
37 import freemarker.core.Environment;
38 import freemarker.ext.beans.BeanModel;
39 import freemarker.template.TemplateModelException;
40 import freemarker.template.TemplateTransformModel;
41
42 /**
43  * OfbizContentTransform - Freemarker Transform for content links
44  *
45  * @author <a HREF="mailto:jaz@ofbiz.org">Andy Zeneski</a>
46  * @version $Rev: 5462 $
47  * @since 2.1
48  */
49 public class OfbizContentTransform implements TemplateTransformModel {
50         
51         public Writer JavaDoc getWriter(final Writer JavaDoc out, Map JavaDoc args) {
52             final StringBuffer JavaDoc buf = new StringBuffer JavaDoc();
53             return new Writer JavaDoc(out) {
54                 public void write(char cbuf[], int off, int len) {
55                     buf.append(cbuf, off, len);
56                 }
57
58                 public void flush() throws IOException JavaDoc {
59                     out.flush();
60                 }
61
62                 public void close() throws IOException JavaDoc {
63                     try {
64                         Environment env = Environment.getCurrentEnvironment();
65                         BeanModel req = (BeanModel)env.getVariable("request");
66                         BeanModel res = (BeanModel) env.getVariable("response");
67                         HttpServletRequest JavaDoc request = (HttpServletRequest JavaDoc) req.getWrappedObject();
68                         HttpServletResponse JavaDoc response = (HttpServletResponse JavaDoc) res.getWrappedObject();
69                         ServletContext JavaDoc ctx = (ServletContext JavaDoc) request.getAttribute("servletContext");
70                         
71                         // make the link
72 StringBuffer JavaDoc newURL = new StringBuffer JavaDoc();
73                         ContentUrlTag.appendContentPrefix(request, newURL);
74                         newURL.append(buf.toString());
75                         out.write(newURL.toString());
76                     } catch (TemplateModelException e) {
77                         throw new IOException JavaDoc(e.getMessage());
78                     }
79                 }
80             };
81         }
82     }
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