Coverage Report - org.apache.tapestry.annotations.AnnotationEnhancementWorker
 
Classes in this File Line Coverage Branch Coverage Complexity
AnnotationEnhancementWorker
0%
0/46
0%
0/14
2.2
 
 1  
 // Copyright 2005 The Apache Software Foundation
 2  
 //
 3  
 // Licensed under the Apache License, Version 2.0 (the "License");
 4  
 // you may not use this file except in compliance with the License.
 5  
 // You may obtain a copy of the License at
 6  
 //
 7  
 //     http://www.apache.org/licenses/LICENSE-2.0
 8  
 //
 9  
 // Unless required by applicable law or agreed to in writing, software
 10  
 // distributed under the License is distributed on an "AS IS" BASIS,
 11  
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 12  
 // See the License for the specific language governing permissions and
 13  
 // limitations under the License.
 14  
 
 15  
 package org.apache.tapestry.annotations;
 16  
 
 17  
 import java.lang.annotation.Annotation;
 18  
 import java.lang.reflect.Method;
 19  
 import java.util.List;
 20  
 import java.util.Map;
 21  
 
 22  
 import org.apache.hivemind.ClassResolver;
 23  
 import org.apache.hivemind.ErrorLog;
 24  
 import org.apache.hivemind.Location;
 25  
 import org.apache.hivemind.Resource;
 26  
 import org.apache.hivemind.util.ClasspathResource;
 27  
 import org.apache.tapestry.enhance.EnhancementOperation;
 28  
 import org.apache.tapestry.enhance.EnhancementWorker;
 29  
 import org.apache.tapestry.spec.IComponentSpecification;
 30  
 import org.apache.tapestry.util.DescribedLocation;
 31  
 
 32  
 /**
 33  
  * Implementation of {@link org.apache.tapestry.enhance.EnhancementWorker} that finds class and
 34  
  * method annotations and delegates out to specific
 35  
  * {@link org.apache.tapestry.annotations.ClassAnnotationEnhancementWorker} and
 36  
  * {@link org.apache.tapestry.annotations.MethodAnnotationEnhancementWorker} instances.
 37  
  * 
 38  
  * @author Howard M. Lewis Ship
 39  
  * @since 4.0
 40  
  */
 41  0
 public class AnnotationEnhancementWorker implements EnhancementWorker
 42  
 {
 43  
     private ClassResolver _classResolver;
 44  
 
 45  
     private ErrorLog _errorLog;
 46  
 
 47  
     private Map<Class, MethodAnnotationEnhancementWorker> _methodWorkers;
 48  
 
 49  
     private Map<Class, ClassAnnotationEnhancementWorker> _classWorkers;
 50  
 
 51  
     private List<SecondaryAnnotationWorker> _secondaryAnnotationWorkers;
 52  
 
 53  
     public void setClassWorkers(Map<Class, ClassAnnotationEnhancementWorker> classWorkers)
 54  
     {
 55  0
         _classWorkers = classWorkers;
 56  0
     }
 57  
 
 58  
     public void performEnhancement(EnhancementOperation op, IComponentSpecification spec)
 59  
     {
 60  0
         Class clazz = op.getBaseClass();
 61  
 
 62  0
         Resource classResource = newClassResource(clazz);
 63  
 
 64  0
         for (Annotation a : clazz.getAnnotations())
 65  
         {
 66  0
             performClassEnhancement(op, spec, clazz, a, classResource);
 67  
         }
 68  
 
 69  0
         for (Method m : clazz.getMethods())
 70  
         {
 71  0
             performMethodEnhancement(op, spec, m, classResource);
 72  
         }
 73  0
     }
 74  
 
 75  
     private ClasspathResource newClassResource(Class clazz)
 76  
     {
 77  0
         return new ClasspathResource(_classResolver, clazz.getName().replace('.', '/'));
 78  
     }
 79  
 
 80  
     void performClassEnhancement(EnhancementOperation op, IComponentSpecification spec,
 81  
             Class clazz, Annotation annotation, Resource classResource)
 82  
     {
 83  0
         ClassAnnotationEnhancementWorker worker = _classWorkers.get(annotation.annotationType());
 84  
 
 85  0
         if (worker == null)
 86  0
             return;
 87  
 
 88  
         try
 89  
         {
 90  0
             Location location = new DescribedLocation(classResource, AnnotationMessages.classAnnotation(annotation, clazz));
 91  
 
 92  0
             worker.performEnhancement(op, spec, clazz, location);
 93  
         }
 94  0
         catch (Exception ex)
 95  
         {
 96  0
             _errorLog.error(AnnotationMessages.failureProcessingClassAnnotation(
 97  
                     annotation,
 98  
                     clazz,
 99  
                     ex), null, ex);
 100  0
         }
 101  
 
 102  0
     }
 103  
 
 104  
     void performMethodEnhancement(EnhancementOperation op, IComponentSpecification spec,
 105  
             Method method, Resource classResource)
 106  
     {
 107  0
         for (Annotation a : method.getAnnotations())
 108  
         {
 109  0
             performMethodEnhancement(op, spec, method, a, classResource);
 110  
         }
 111  
 
 112  
         try
 113  
         {
 114  
             
 115  0
             for (SecondaryAnnotationWorker worker : _secondaryAnnotationWorkers)
 116  0
                 if (worker.canEnhance(method))
 117  0
                     worker.peformEnhancement(op, spec, method, classResource);
 118  
             
 119  
         }
 120  0
         catch (Exception ex)
 121  
         {
 122  0
             _errorLog.error(AnnotationMessages.failureEnhancingMethod(method, ex), null, ex);
 123  0
         }
 124  0
     }
 125  
 
 126  
     void performMethodEnhancement(EnhancementOperation op, IComponentSpecification spec,
 127  
             Method method, Annotation annotation, Resource classResource)
 128  
     {
 129  0
         MethodAnnotationEnhancementWorker worker = _methodWorkers.get(annotation.annotationType());
 130  
 
 131  0
         if (worker == null)
 132  0
             return;
 133  
 
 134  
         try
 135  
         {
 136  0
             Location location = AnnotationUtils.buildLocationForAnnotation(
 137  
                     method,
 138  
                     annotation,
 139  
                     classResource);
 140  0
             worker.performEnhancement(op, spec, method, location);
 141  
         }
 142  0
         catch (Exception ex)
 143  
         {
 144  0
             _errorLog.error(
 145  
                     AnnotationMessages.failureProcessingAnnotation(annotation, method, ex),
 146  
                     null,
 147  
                     ex);
 148  0
         }
 149  
 
 150  0
     }
 151  
 
 152  
     public void setMethodWorkers(Map<Class, MethodAnnotationEnhancementWorker> methodWorkers)
 153  
     {
 154  0
         _methodWorkers = methodWorkers;
 155  0
     }
 156  
 
 157  
     public void setErrorLog(ErrorLog errorLog)
 158  
     {
 159  0
         _errorLog = errorLog;
 160  0
     }
 161  
 
 162  
     public void setClassResolver(ClassResolver classResolver)
 163  
     {
 164  0
         _classResolver = classResolver;
 165  0
     }
 166  
 
 167  
     public void setSecondaryAnnotationWorkers(List<SecondaryAnnotationWorker> workers)
 168  
     {
 169  0
         _secondaryAnnotationWorkers = workers;
 170  0
     }
 171  
 }