##### Coverage Report - org.apache.turbine.services.template.mapper.ClassMapper

Classes in this File | Line Coverage | Branch Coverage | Complexity
ClassMapper |
97% | 36/37
83% | 10/12
| 3.0;3

1 |  |
     package org.apache.turbine.services.template.mapper;
2 |  |
3 |  |
4 |  |
     /*
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      * Licensed to the Apache Software Foundation (ASF) under one
6 |  |
      * or more contributor license agreements.  See the NOTICE file
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      * distributed with this work for additional information
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      * regarding copyright ownership.  The ASF licenses this file
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      * to you under the Apache License, Version 2.0 (the
10 |  |
      * "License"); you may not use this file except in compliance
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      * with the License.  You may obtain a copy of the License at
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      *
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      *   http://www.apache.org/licenses/LICENSE-2.0
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      *
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      * Unless required by applicable law or agreed to in writing,
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      * software distributed under the License is distributed on an
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      * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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      * KIND, either express or implied.  See the License for the
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      * specific language governing permissions and limitations
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      * under the License.
21 |  |
      */
22 |  |
23 |  |
24 |  |
     import java.util.ArrayList;
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     import java.util.Arrays;
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     import java.util.List;
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28 |  |
     import org.apache.commons.lang.StringUtils;
29 |  |
     import org.apache.commons.logging.Log;
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     import org.apache.commons.logging.LogFactory;
31 |  |
     import org.apache.turbine.modules.Loader;
32 |  |
     import org.apache.turbine.services.template.TemplateService;
33 |  |
34 |  |
     /**
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      * This mapper tries to map Template names to class names. If no direct match
36 |  |
      * is found, it tries matches "upwards" in the package hierarchy until either
37 |  |
      * a match is found or the root is hit. Then it returns the name of the
38 |  |
      * default class from the TemplateEngineService.
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      *
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      * 1. about.directions.Driving     &lt;- direct matching the template to the class name
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      * 2. about.directions.Default     &lt;- matching the package, class name is Default
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      * 3. about.Default                &lt;- stepping up in the package hierarchy, looking for Default
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      * 4. Default                      &lt;- Class called "Default" without package
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      * 5. VelocityScreen               &lt;- The class configured by the Service (VelocityService) to
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      *
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      * Please note, that no actual packages are searched. This is the scope of the
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      * TemplateEngine Loader which is passed at construction time.
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      *
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      * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a>
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      * @version $Id: ClassMapper.java 1071091 2011-02-15 22:06:55Z tv $
51 |  |
      */
52 |  |
53 |  |
     public class ClassMapper
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         extends BaseMapper
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         implements Mapper
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     {
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         /** The loader for actually trying out the package names */
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         private Loader loader = null;
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         /** Logging */
61 | 58 |
         private static Log log = LogFactory.getLog(ClassMapper.class);
62 |  |
63 |  |
         /**
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          * Default C'tor. If you use this C'tor, you must use
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          * the bean setter to set the various properties needed for
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          * this mapper before first usage.
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          */
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         public ClassMapper()
69 | 282 |
         {
70 |  |
                 // empty
71 | 282 |
         }
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73 |  |
         /**
74 |  |
          * Get the Loader value.
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          * @return the Loader value.
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          */
77 |  |
         public Loader getLoader()
78 |  |
         {
79 | 0 |
             return loader;
80 |  |
         }
81 |  |
82 |  |
         /**
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          * Set the Loader value.
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          * @param loader The new Loader value.
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          */
86 |  |
         public void setLoader(Loader loader)
87 |  |
         {
88 | 282 |
             this.loader = loader;
89 | 282 |
             log.debug("Loader is " + this.loader);
90 | 282 |
         }
91 |  |
92 |  |
         /**
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          * Strip off a possible extension, replace all "," with "."
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          * Look through the given package path until a match is found.
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          *
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          * @param template The template name.
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          * @return A class name for the given template.
98 |  |
          */
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         public String doMapping(String template)
100 |  |
         {
101 | 58 |
             log.debug("doMapping(" + template + ")");
102 |  |
103 |  |
             // Copy our elements into an array
104 | 58 |
             List<String> components
105 |  |
                 = new ArrayList<String>(Arrays.asList(StringUtils.split(
106 |  |
                                                   template,
107 |  |
                                                   String.valueOf(TemplateService.TEMPLATE_PARTS_SEPARATOR))));
108 | 58 |
             int componentSize = components.size() - 1 ;
109 |  |
110 |  |
             // This method never gets an empty string passed.
111 |  |
             // So this is never < 0
112 | 58 |
             String className = components.get(componentSize);
113 | 58 |
             components.remove(componentSize--);
114 |  |
115 | 58 |
             log.debug("className is " + className);
116 |  |
117 |  |
             // Strip off a possible Extension
118 | 58 |
             int dotIndex = className.lastIndexOf(TemplateService.EXTENSION_SEPARATOR);
119 | 58 |
             className = (dotIndex < 0) ? className : className.substring(0, dotIndex);
120 |  |
121 |  |
             // This is an optimization. If the name we're looking for is
122 |  |
             // already the default name for the template, don't do a "first run"
123 |  |
             // which looks for an exact match.
124 | 58 |
             boolean firstRun = !className.equals(TemplateService.DEFAULT_NAME);
125 |  |
126 |  |
             for(;;)
127 |  |
             {
128 | 146 |
                 String pkg = StringUtils.join(components.iterator(), String.valueOf(separator));
129 | 146 |
                 StringBuffer testName = new StringBuffer();
130 |  |
131 | 146 |
                 log.debug("classPackage is now: " + pkg);
132 |  |
133 | 146 |
                 if (!components.isEmpty())
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                 {
135 | 90 |
                     testName.append(pkg);
136 | 90 |
                     testName.append(separator);
137 |  |
                 }
138 |  |
139 | 146 |
                 testName.append((firstRun)
140 |  |
                     ? className
141 |  |
                     : TemplateService.DEFAULT_NAME);
142 |  |
143 | 146 |
                 log.debug("Looking for " + testName);
144 |  |
                 try
145 |  |
                 {
146 | 146 |
                     loader.getAssembler(testName.toString());
147 | 24 |
                     log.debug("Found it, returning " + testName);
148 | 24 |
                     return testName.toString();
149 |  |
                 }
150 | 122 |
                 catch (Exception e)
151 |  |
                 {
152 |  |
                     // Not found. Go on.
153 |  |
                 }
154 |  |
155 | 122 |
                 if (firstRun)
156 |  |
                 {
157 | 46 |
                     firstRun = false;
158 |  |
                 }
159 |  |
                 else
160 |  |
                 {
161 | 76 |
                     if (components.isEmpty())
162 |  |
                     {
163 | 34 |
                         break; // for(;;)
164 |  |
                     }
165 | 42 |
                     components.remove(componentSize--);
166 |  |
                 }
167 | 88 |
             }
168 |  |
169 | 34 |
             log.debug("Returning default");
170 | 34 |
             return getDefaultName(template);
171 |  |
         }
172 |  |
     }
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176 |  |