1 package org.apache.turbine.services.template.mapper;
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24 import java.util.ArrayList;
25 import java.util.Arrays;
26 import java.util.List;
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28 import org.apache.commons.lang.StringUtils;
29 import org.apache.commons.logging.Log;
30 import org.apache.commons.logging.LogFactory;
31 import org.apache.turbine.services.template.TemplateEngineService;
32 import org.apache.turbine.services.template.TemplateService;
33 import org.apache.turbine.services.template.TurbineTemplate;
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50 public class LayoutTemplateMapper
51 extends BaseTemplateMapper
52 implements Mapper
53 {
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55 private static Log log = LogFactory.getLog(LayoutTemplateMapper.class);
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62 public LayoutTemplateMapper()
63 {
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65 }
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74 public String doMapping(String template)
75 {
76 log.debug("doMapping(" + template + ")");
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78 List<String> components
79 = new ArrayList<String>(Arrays.asList(StringUtils.split(
80 template,
81 String.valueOf(TemplateService.TEMPLATE_PARTS_SEPARATOR))));
82 int componentSize = components.size() - 1 ;
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86 String templateName = components.get(componentSize);
87 components.remove(componentSize--);
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89 log.debug("templateName is " + templateName);
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92 TemplateEngineService tes = TurbineTemplate.getTemplateEngineService(templateName);
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94 if (tes == null)
95 {
96 return null;
97 }
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99 String defaultName =
100 TurbineTemplate.getDefaultLayoutTemplateName(templateName);
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105 boolean firstRun = !templateName.equals(defaultName);
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107 for(;;)
108 {
109 String templatePackage = StringUtils.join(components.iterator(), String.valueOf(separator));
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111 log.debug("templatePackage is now: " + templatePackage);
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113 StringBuilder testName = new StringBuilder();
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115 if (!components.isEmpty())
116 {
117 testName.append(templatePackage);
118 testName.append(separator);
119 }
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121 testName.append((firstRun)
122 ? templateName
123 : defaultName);
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126 StringBuilder templatePath = new StringBuilder();
127 if (StringUtils.isNotEmpty(prefix))
128 {
129 templatePath.append(prefix);
130 templatePath.append(separator);
131 }
132 templatePath.append(testName);
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134 log.debug("Looking for " + templatePath);
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136 if (tes.templateExists(templatePath.toString()))
137 {
138 log.debug("Found it, returning " + testName);
139 return testName.toString();
140 }
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142 if (firstRun)
143 {
144 firstRun = false;
145 }
146 else
147 {
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152 if (components.isEmpty())
153 {
154 break;
155 }
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158 components.remove(componentSize--);
159 }
160 }
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162 log.debug("Returning default");
163 return getDefaultName(template);
164 }
165 }