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Java > Open Source Codes > org > snipsnap > graph > UMLContentRenderer


1 /*
2  * This file is part of "SnipSnap Wiki/Weblog".
3  *
4  * Copyright (c) 2004 Fraunhofer Gesellschaft
5  * All Rights Reserved.
6  *
7  * Please visit http://snipsnap.org/ for updates and contact.
8  *
9  * --LICENSE NOTICE--
10  * This program is free software; you can redistribute it and/or
11  * modify it under the terms of the GNU General Public License
12  * as published by the Free Software Foundation; either version 2
13  * of the License, or (at your option) any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18  * GNU General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with this program; if not, write to the Free Software
22  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23  * --LICENSE NOTICE--
24  */
25 package org.snipsnap.graph;
26
27 import org.snipsnap.graph.builder.StringUMLBuilder;
28 import org.snipsnap.graph.builder.UMLBuilder;
29 import org.snipsnap.graph.context.UMLRendererContext;
30 import org.snipsnap.graph.renderer.Renderer;
31 import org.snipsnap.graph.renderer.UMLGraphRenderer;
32
33 import javax.servlet.ServletOutputStream JavaDoc;
34 import javax.servlet.http.HttpServletRequest JavaDoc;
35 import javax.servlet.http.HttpServletResponse JavaDoc;
36 import java.io.IOException JavaDoc;
37
38 public class UMLContentRenderer implements ContentRenderer {
39   private UMLGraphRenderer renderer = new UMLGraphRenderer();
40
41   public String JavaDoc getName() {
42     return "uml";
43   }
44
45   public Renderer getRenderer() {
46     return null;
47   }
48
49   public void render(HttpServletRequest JavaDoc request, HttpServletResponse JavaDoc response, String JavaDoc content) throws IOException JavaDoc {
50     response.setContentType("image/png");
51
52     ServletOutputStream JavaDoc out = response.getOutputStream();
53     UMLBuilder builder = new StringUMLBuilder(content);
54     try {
55       renderer.render(builder.build(), out, new UMLRendererContext());
56     } catch (Exception JavaDoc e) {
57       e.printStackTrace();
58     }
59   }
60 }
61
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