%line | %branch | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
org.apache.turbine.services.template.mapper.ScreenDefaultTemplateMapper |
|
|
1 | package org.apache.turbine.services.template.mapper; |
|
2 | ||
3 | /* |
|
4 | * Copyright 2001-2005 The Apache Software Foundation. |
|
5 | * |
|
6 | * Licensed under the Apache License, Version 2.0 (the "License") |
|
7 | * you may not use this file except in compliance with the License. |
|
8 | * You may obtain a copy of the License at |
|
9 | * |
|
10 | * http://www.apache.org/licenses/LICENSE-2.0 |
|
11 | * |
|
12 | * Unless required by applicable law or agreed to in writing, software |
|
13 | * distributed under the License is distributed on an "AS IS" BASIS, |
|
14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
|
15 | * See the License for the specific language governing permissions and |
|
16 | * limitations under the License. |
|
17 | */ |
|
18 | ||
19 | import java.util.List; |
|
20 | import java.util.ArrayList; |
|
21 | import java.util.Arrays; |
|
22 | ||
23 | import org.apache.commons.lang.StringUtils; |
|
24 | ||
25 | import org.apache.commons.logging.Log; |
|
26 | import org.apache.commons.logging.LogFactory; |
|
27 | ||
28 | import org.apache.turbine.services.template.TemplateEngineService; |
|
29 | import org.apache.turbine.services.template.TemplateService; |
|
30 | import org.apache.turbine.services.template.TurbineTemplate; |
|
31 | ||
32 | /** |
|
33 | * This is a pretty simple mapper which returns template pathes for |
|
34 | * a supplied template name. If the path does not exist, it looks for |
|
35 | * a templated called "Default" in the same package. |
|
36 | * This path can be used by the TemplateEngine to access |
|
37 | * a certain resource to actually render the template. |
|
38 | * |
|
39 | * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a> |
|
40 | * @version $Id: ScreenDefaultTemplateMapper.java 264148 2005-08-29 14:21:04Z henning $ |
|
41 | */ |
|
42 | ||
43 | public class ScreenDefaultTemplateMapper |
|
44 | extends BaseTemplateMapper |
|
45 | implements Mapper |
|
46 | { |
|
47 | /** Logging */ |
|
48 | 0 | private static Log log = LogFactory.getLog(ScreenDefaultTemplateMapper.class); |
49 | ||
50 | /** |
|
51 | * Default C'tor. If you use this C'tor, you must use |
|
52 | * the bean setter to set the various properties needed for |
|
53 | * this mapper before first usage. |
|
54 | */ |
|
55 | public ScreenDefaultTemplateMapper() |
|
56 | 0 | { |
57 | 0 | } |
58 | ||
59 | /** |
|
60 | * Look for a given Template, then try the |
|
61 | * default. |
|
62 | * |
|
63 | * @param template The template name. |
|
64 | * @return The parsed module name. |
|
65 | */ |
|
66 | public String doMapping(String template) |
|
67 | { |
|
68 | 0 | log.debug("doMapping(" + template + ")"); |
69 | // Copy our elements into an array |
|
70 | 0 | List components |
71 | = new ArrayList(Arrays.asList(StringUtils.split( |
|
72 | template, |
|
73 | String.valueOf(TemplateService.TEMPLATE_PARTS_SEPARATOR)))); |
|
74 | 0 | int componentSize = components.size() - 1 ; |
75 | ||
76 | // This method never gets an empty string passed. |
|
77 | // So this is never < 0 |
|
78 | 0 | String templateName = (String) components.get(componentSize); |
79 | 0 | components.remove(componentSize--); |
80 | ||
81 | 0 | log.debug("templateName is " + templateName); |
82 | ||
83 | // Last element decides, which template Service to use... |
|
84 | 0 | TemplateEngineService tes = TurbineTemplate.getTemplateEngineService(templateName); |
85 | ||
86 | 0 | if (tes == null) |
87 | { |
|
88 | 0 | return null; |
89 | } |
|
90 | ||
91 | 0 | String defaultName = "Default.vm"; |
92 | ||
93 | // This is an optimization. If the name we're looking for is |
|
94 | // already the default name for the template, don't do a "first run" |
|
95 | // which looks for an exact match. |
|
96 | 0 | boolean firstRun = !templateName.equals(defaultName); |
97 | ||
98 | for(;;) |
|
99 | { |
|
100 | 0 | String templatePackage = StringUtils.join(components.iterator(), String.valueOf(separator)); |
101 | ||
102 | 0 | log.debug("templatePackage is now: " + templatePackage); |
103 | ||
104 | 0 | StringBuffer testName = new StringBuffer(); |
105 | ||
106 | 0 | if (!components.isEmpty()) |
107 | { |
|
108 | 0 | testName.append(templatePackage); |
109 | 0 | testName.append(separator); |
110 | } |
|
111 | ||
112 | 0 | testName.append((firstRun) |
113 | ? templateName |
|
114 | : defaultName); |
|
115 | ||
116 | // But the Templating service must look for the name with prefix |
|
117 | 0 | StringBuffer templatePath = new StringBuffer(); |
118 | 0 | if (StringUtils.isNotEmpty(prefix)) |
119 | { |
|
120 | 0 | templatePath.append(prefix); |
121 | 0 | templatePath.append(separator); |
122 | } |
|
123 | 0 | templatePath.append(testName); |
124 | ||
125 | 0 | log.debug("Looking for " + templatePath); |
126 | ||
127 | 0 | if (tes.templateExists(templatePath.toString())) |
128 | { |
|
129 | 0 | log.debug("Found it, returning " + testName); |
130 | 0 | return testName.toString(); |
131 | } |
|
132 | ||
133 | 0 | if (firstRun) |
134 | { |
|
135 | 0 | firstRun = false; |
136 | } |
|
137 | else |
|
138 | { |
|
139 | // We run this loop only two times. The |
|
140 | // first time with the 'real' name and the |
|
141 | // second time with "Default". The second time |
|
142 | // we will end up here and break the for(;;) loop. |
|
143 | 0 | break; |
144 | } |
|
145 | } |
|
146 | ||
147 | 0 | log.debug("Returning default"); |
148 | 0 | return getDefaultName(template); |
149 | } |
|
150 | } |
This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |