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package org.apache.turbine.annotation; |
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import java.lang.reflect.Field; |
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import org.apache.commons.configuration.Configuration; |
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import org.apache.commons.lang.StringUtils; |
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import org.apache.commons.logging.Log; |
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import org.apache.commons.logging.LogFactory; |
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import org.apache.turbine.Turbine; |
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import org.apache.turbine.modules.Loader; |
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import org.apache.turbine.services.ServiceManager; |
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import org.apache.turbine.services.TurbineServices; |
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import org.apache.turbine.services.assemblerbroker.TurbineAssemblerBroker; |
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import org.apache.turbine.util.TurbineException; |
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44 | 0 | public class AnnotationProcessor |
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{ |
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47 | 31 | private static Log log |
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= LogFactory.getLog(AnnotationProcessor.class); |
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public static void process(Object object) throws TurbineException |
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{ |
59 | 459 | ServiceManager manager = TurbineServices.getInstance(); |
60 | 459 | Class<?> clazz = object.getClass(); |
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62 | 1990 | while (clazz != null) |
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{ |
64 | 1531 | Field[] fields = clazz.getDeclaredFields(); |
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66 | 2764 | for (Field field : fields) |
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{ |
68 | 1233 | if (field.isAnnotationPresent(TurbineService.class)) |
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{ |
70 | 106 | TurbineService sa = field.getAnnotation(TurbineService.class); |
71 | 106 | String serviceName = null; |
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73 | 106 | if (StringUtils.isNotEmpty(sa.value())) |
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{ |
75 | 1 | serviceName = sa.value(); |
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} |
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else |
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{ |
80 | 105 | Field[] typeFields = field.getType().getFields(); |
81 | 105 | for (Field f : typeFields) |
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{ |
83 | 105 | if (TurbineService.SERVICE_NAME.equals(f.getName())) |
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{ |
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try |
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{ |
87 | 104 | serviceName = (String)f.get(null); |
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} |
89 | 0 | catch (Exception e) |
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{ |
91 | 0 | continue; |
92 | 104 | } |
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break; |
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} |
95 | 1 | else if (TurbineService.ROLE.equals(f.getName())) |
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{ |
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try |
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{ |
99 | 1 | serviceName = (String)f.get(null); |
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} |
101 | 0 | catch (Exception e) |
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{ |
103 | 0 | continue; |
104 | 1 | } |
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break; |
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} |
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} |
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} |
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110 | 106 | if (StringUtils.isEmpty(serviceName)) |
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{ |
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113 | 0 | serviceName = field.getType().getName(); |
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} |
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116 | 106 | if (log.isDebugEnabled()) |
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{ |
118 | 106 | log.debug("Looking up service for injection: " + serviceName + " for object " + object); |
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} |
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121 | 106 | Object service = manager.getService(serviceName); |
122 | 106 | field.setAccessible(true); |
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try |
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{ |
126 | 106 | if (log.isDebugEnabled()) |
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{ |
128 | 106 | log.debug("Injection of " + serviceName + " into object " + object); |
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} |
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131 | 106 | field.set(object, service); |
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} |
133 | 0 | catch (IllegalArgumentException e) |
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{ |
135 | 0 | throw new TurbineException("Could not inject service " |
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+ serviceName + " into object " + object, e); |
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} |
138 | 0 | catch (IllegalAccessException e) |
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{ |
140 | 0 | throw new TurbineException("Could not inject service " |
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+ serviceName + " into object " + object, e); |
142 | 106 | } |
143 | 106 | } |
144 | 1127 | else if (field.isAnnotationPresent(TurbineConfiguration.class)) |
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{ |
146 | 185 | TurbineConfiguration ca = field.getAnnotation(TurbineConfiguration.class); |
147 | 185 | Configuration conf = null; |
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150 | 185 | if (StringUtils.isNotEmpty(ca.value())) |
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{ |
152 | 0 | conf = Turbine.getConfiguration().subset(ca.value()); |
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} |
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else |
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{ |
156 | 185 | conf = Turbine.getConfiguration(); |
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} |
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159 | 185 | field.setAccessible(true); |
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try |
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{ |
163 | 185 | if (log.isDebugEnabled()) |
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{ |
165 | 185 | log.debug("Injection of " + conf + " into object " + object); |
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} |
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168 | 185 | field.set(object, conf); |
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} |
170 | 0 | catch (IllegalArgumentException e) |
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{ |
172 | 0 | throw new TurbineException("Could not inject configuration " |
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+ conf + " into object " + object, e); |
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} |
175 | 0 | catch (IllegalAccessException e) |
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{ |
177 | 0 | throw new TurbineException("Could not inject configuration " |
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+ conf + " into object " + object, e); |
179 | 185 | } |
180 | 185 | } |
181 | 942 | else if (field.isAnnotationPresent(TurbineLoader.class)) |
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{ |
183 | 202 | TurbineLoader la = field.getAnnotation(TurbineLoader.class); |
184 | 202 | Loader<?> loader = TurbineAssemblerBroker.getLoader(la.value()); |
185 | 202 | field.setAccessible(true); |
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try |
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{ |
189 | 202 | if (log.isDebugEnabled()) |
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{ |
191 | 202 | log.debug("Injection of " + loader + " into object " + object); |
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} |
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194 | 202 | field.set(object, loader); |
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} |
196 | 0 | catch (IllegalArgumentException e) |
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{ |
198 | 0 | throw new TurbineException("Could not inject loader " |
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+ loader + " into object " + object, e); |
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} |
201 | 0 | catch (IllegalAccessException e) |
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{ |
203 | 0 | throw new TurbineException("Could not inject loader " |
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+ loader + " into object " + object, e); |
205 | 202 | } |
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} |
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} |
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209 | 1531 | clazz = clazz.getSuperclass(); |
210 | 1531 | } |
211 | 459 | } |
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} |