Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
ErrorHandler |
|
| 1.5;1.5 |
1 | /* | |
2 | * Copyright (C) 1998-2000 Semiotek Inc. All Rights Reserved. | |
3 | * | |
4 | * Redistribution and use in source and binary forms, with or without | |
5 | * modification, are permitted under the terms of either of the following | |
6 | * Open Source licenses: | |
7 | * | |
8 | * The GNU General Public License, version 2, or any later version, as | |
9 | * published by the Free Software Foundation | |
10 | * (http://www.fsf.org/copyleft/gpl.html); | |
11 | * | |
12 | * or | |
13 | * | |
14 | * The Semiotek Public License (http://webmacro.org/LICENSE.) | |
15 | * | |
16 | * This software is provided "as is", with NO WARRANTY, not even the | |
17 | * implied warranties of fitness to purpose, or merchantability. You | |
18 | * assume all risks and liabilities associated with its use. | |
19 | * | |
20 | * See www.webmacro.org for more information on the WebMacro project. | |
21 | */ | |
22 | ||
23 | ||
24 | package org.webmacro.servlet; | |
25 | ||
26 | import org.webmacro.Broker; | |
27 | import org.webmacro.ResourceException; | |
28 | import org.webmacro.Template; | |
29 | import org.webmacro.engine.StringTemplate; | |
30 | ||
31 | /** | |
32 | * This handler gets called if a normal handler could not | |
33 | * be constructed--it writes out an error message | |
34 | * explaining what went wrong. | |
35 | */ | |
36 | 0 | final class ErrorHandler implements Handler |
37 | { | |
38 | ||
39 | private static final String DEFAULT_ERROR_TEXT = | |
40 | "<HTML><HEAD><TITLE>Error</TITLE></HEAD>\n" | |
41 | + "#set $Response.ContentType = \"text/html\"\n" | |
42 | + "<BODY><H1>Error</H1>" | |
43 | + "<HR>$error</BODY></HTML>"; | |
44 | ||
45 | 0 | private Template _errorTemplate = null; |
46 | ||
47 | /** | |
48 | * The default error handler simply returns its template | |
49 | * @see TemplateStore | |
50 | * @exception HandlerException if you don't want to handle the connect | |
51 | * @return A Template which can be used to interpret the connection | |
52 | */ | |
53 | public Template accept (WebContext c) | |
54 | throws HandlerException | |
55 | { | |
56 | 0 | Broker broker = c.getBroker(); |
57 | String templateName; | |
58 | ||
59 | try | |
60 | { | |
61 | 0 | templateName = (String) broker.get("config", WMServlet.ERROR_TEMPLATE); |
62 | } | |
63 | 0 | catch (ResourceException e) |
64 | { | |
65 | 0 | templateName = WMServlet.ERROR_TEMPLATE_DEFAULT; |
66 | 0 | } |
67 | ||
68 | try | |
69 | { | |
70 | 0 | _errorTemplate = (Template) broker.get("template", templateName); |
71 | } | |
72 | 0 | catch (ResourceException e) |
73 | { | |
74 | 0 | _errorTemplate = new StringTemplate(broker, DEFAULT_ERROR_TEXT, |
75 | "WebMacro default error template"); | |
76 | 0 | } |
77 | ||
78 | 0 | return _errorTemplate; |
79 | } | |
80 | ||
81 | /** | |
82 | * Does nothing | |
83 | */ | |
84 | public void destroy () | |
85 | { | |
86 | 0 | } |
87 | ||
88 | /** | |
89 | * Does nothing | |
90 | */ | |
91 | public void init () | |
92 | { | |
93 | 0 | } |
94 | ||
95 | ||
96 | /** | |
97 | * Return the name of this handler | |
98 | */ | |
99 | final public String toString () | |
100 | { | |
101 | 0 | return "WebMacro ErrorHandler"; |
102 | } | |
103 | } | |
104 | ||
105 |