1 /*
2 * $Source$
3 * $Revision$
4 *
5 * Copyright (C) 2008 Tim Pizey
6 *
7 * Part of Melati (http://melati.org), a framework for the rapid
8 * development of clean, maintainable web applications.
9 *
10 * Melati is free software; Permission is granted to copy, distribute
11 * and/or modify this software under the terms either:
12 *
13 * a) the GNU General Public License as published by the Free Software
14 * Foundation; either version 2 of the License, or (at your option)
15 * any later version,
16 *
17 * or
18 *
19 * b) any version of the Melati Software License, as published
20 * at http://melati.org
21 *
22 * You should have received a copy of the GNU General Public License and
23 * the Melati Software License along with this program;
24 * if not, write to the Free Software Foundation, Inc.,
25 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA to obtain the
26 * GNU General Public License and visit http://melati.org to obtain the
27 * Melati Software License.
28 *
29 * Feel free to contact the Developers of Melati (http://melati.org),
30 * if you would like to work out a different arrangement than the options
31 * outlined here. It is our intention to allow Melati to be used by as
32 * wide an audience as possible.
33 *
34 * This program is distributed in the hope that it will be useful,
35 * but WITHOUT ANY WARRANTY; without even the implied warranty of
36 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
37 * GNU General Public License for more details.
38 *
39 * Contact details for copyright holder:
40 *
41 * Tim Pizey <timp At paneris.org>
42 */
43 package org.melati.template.velocity;
44
45
46 import java.util.Map;
47
48 import org.apache.velocity.app.event.EventCartridge;
49 import org.melati.template.TemplateContext;
50
51 /**
52 * @author timp
53 * @since 14 Apr 2008
54 *
55 */
56 public class VelocityTemplateContext implements TemplateContext {
57
58 /** The velocity context. */
59 public org.apache.velocity.VelocityContext velocityContext;
60
61 /**
62 * Constructor.
63 * @param vc context
64 */
65 public VelocityTemplateContext(org.apache.velocity.VelocityContext vc) {
66 velocityContext = vc;
67 setPropagateExceptionHandling();
68 }
69
70 /**
71 * {@inheritDoc}
72 * @see org.melati.template.TemplateContext#put(java.lang.String, java.lang.Object)
73 */
74 public Object put(String s, Object o) {
75 return velocityContext.put(s,o);
76 }
77
78 /**
79 * {@inheritDoc}
80 * @see org.melati.template.TemplateContext#get(java.lang.String)
81 */
82 public Object get(String s) {
83 return velocityContext.get(s);
84 }
85
86 /**
87 * {@inheritDoc}
88 * @see org.melati.template.TemplateContext#getContext()
89 */
90 public Object getContext() {
91 return velocityContext;
92 }
93
94 /**
95 * {@inheritDoc}
96 * @see org.melati.template.TemplateContext#setPassbackExceptionHandling()
97 */
98 public void setPassbackExceptionHandling() {
99 EventCartridge ec = velocityContext.getEventCartridge();
100 if (ec == null) {
101 ec = new EventCartridge();
102 velocityContext.attachEventCartridge(ec);
103 }
104 ec.addEventHandler(new PassbackEvaluationExceptionHandler(velocityContext));
105 }
106
107 /**
108 * {@inheritDoc}
109 * @see org.melati.template.TemplateContext#setPropagateExceptionHandling()
110 */
111 public void setPropagateExceptionHandling() {
112 EventCartridge ec = velocityContext.getEventCartridge();
113 if (ec == null) {
114 ec = new EventCartridge();
115 velocityContext.attachEventCartridge(ec);
116 }
117 ec.addEventHandler(new PropagateEvaluationExceptionHandler());
118 }
119
120 @Override
121 public void putAll(Map<String, ?> m) {
122 for (String k : m.keySet()) {
123 velocityContext.put(k,m.get(k));
124 }
125 }
126 }