Examples of javassist.bytecode.ParameterAnnotationsAttribute

javassist.bytecode.ParameterAnnotationsAttribute
A class representing RuntimeVisibleAnnotations_attribute and RuntimeInvisibleAnnotations_attribute.
To obtain an ParameterAnnotationAttribute object, invoke getAttribute(ParameterAnnotationsAttribute.invisibleTag) in MethodInfo. The obtained attribute is a runtime invisible annotations attribute. If the parameter is ParameterAnnotationAttribute.visibleTag, then the obtained attribute is a runtime visible one.

      }
   }
   
   private void copyParameterAnnotations(int numParams, javassist.bytecode.MethodInfo src, javassist.bytecode.MethodInfo dest, String paramsTag)
   {
      ParameterAnnotationsAttribute params = (ParameterAnnotationsAttribute)src.getAttribute(paramsTag);
      if (params != null)
      {
         dest.addAttribute(params.copy(dest.getConstPool(), EMPTY_HASHMAP));
         ParameterAnnotationsAttribute srcParams = new ParameterAnnotationsAttribute(src.getConstPool(), paramsTag);
         Annotation[][] emptyParamAnnotations = new Annotation[numParams][];
         for (int i = 0 ; i < numParams ; i++)
         {
            emptyParamAnnotations[i] = new Annotation[0];
         }
         srcParams.setAnnotations(emptyParamAnnotations);
         src.addAttribute(srcParams);
      }
   }

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      }
   }
   
   private void moveParameterAnnotations(int numParams, MethodInfo src, MethodInfo dest, String paramsTag)
   {
      ParameterAnnotationsAttribute params = (ParameterAnnotationsAttribute)src.getAttribute(paramsTag);
      if (params != null)
      {
         @SuppressWarnings("unchecked")
         HashMap map = new HashMap();
         dest.addAttribute(params.copy(dest.getConstPool(), map));
         ParameterAnnotationsAttribute srcParams = new ParameterAnnotationsAttribute(src.getConstPool(), paramsTag);
         Annotation[][] emptyParamAnnotations = new Annotation[numParams][];
         for (int i = 0 ; i < numParams ; i++)
         {
            emptyParamAnnotations[i] = new Annotation[0];
         }
         srcParams.setAnnotations(emptyParamAnnotations);
         src.addAttribute(srcParams);
      }
   }

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      }
   }
   
   private void copyParameterAnnotations(int numParams, javassist.bytecode.MethodInfo src, javassist.bytecode.MethodInfo dest, String paramsTag)
   {
      ParameterAnnotationsAttribute params = (ParameterAnnotationsAttribute)src.getAttribute(paramsTag);
      if (params != null)
      {
         dest.addAttribute(params.copy(dest.getConstPool(), EMPTY_HASHMAP));
         ParameterAnnotationsAttribute srcParams = new ParameterAnnotationsAttribute(src.getConstPool(), paramsTag);
         Annotation[][] emptyParamAnnotations = new Annotation[numParams][];
         for (int i = 0 ; i < numParams ; i++)
         {
            emptyParamAnnotations[i] = new Annotation[0];
         }
         srcParams.setAnnotations(emptyParamAnnotations);
         src.addAttribute(srcParams);
      }
   }

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                    populate(invisible.getAnnotations(), cf.getName());
                }
            }
            if (scanParameterAnnotations)
            {
                ParameterAnnotationsAttribute paramsVisible = (ParameterAnnotationsAttribute) method.getAttribute(ParameterAnnotationsAttribute.visibleTag);
                ParameterAnnotationsAttribute paramsInvisible = (ParameterAnnotationsAttribute) method.getAttribute(ParameterAnnotationsAttribute.invisibleTag);


                if (paramsVisible != null && paramsVisible.getAnnotations() != null)
                {
                    for (Annotation[] anns : paramsVisible.getAnnotations())
                    {
                        populate(anns, cf.getName());
                    }
                }
                if (paramsInvisible != null && paramsInvisible.getAnnotations() != null)
                {
                    for (Annotation[] anns : paramsInvisible.getAnnotations())
                    {
                        populate(anns, cf.getName());
                    }
                }
            }

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          populate(invisible.getAnnotations(), cf.getName());
        }
      }
      if (scanParameterAnnotations)
      {
        ParameterAnnotationsAttribute paramsVisible = (ParameterAnnotationsAttribute) method.getAttribute(ParameterAnnotationsAttribute.visibleTag);
        ParameterAnnotationsAttribute paramsInvisible = (ParameterAnnotationsAttribute) method.getAttribute(ParameterAnnotationsAttribute.invisibleTag);


        if (paramsVisible != null && paramsVisible.getAnnotations() != null)
        {
          for (Annotation[] anns : paramsVisible.getAnnotations())
          {
            populate(anns, cf.getName());
          }
        }
        if (paramsInvisible != null && paramsInvisible.getAnnotations() != null)
        {
          for (Annotation[] anns : paramsInvisible.getAnnotations())
          {
            populate(anns, cf.getName());
          }
        }
      }

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                //capture all the runtime visible method annotations on the original method
                annotations = (AnnotationsAttribute) originalMethod.getMethodInfo().getAttribute(
                    AnnotationsAttribute.visibleTag);


                //capture all the runtime visible parameter annotations on the original method
                ParameterAnnotationsAttribute parameterAnnotations = (ParameterAnnotationsAttribute) originalMethod
                    .getMethodInfo().getAttribute(ParameterAnnotationsAttribute.visibleTag);


                //capture the generic signature of the original method.
                signature = (SignatureAttribute) originalMethod.getMethodInfo().getAttribute(
                    SignatureAttribute.tag);

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                    newParameterAnnotations[i - fromIndex][j] = cloneAnnotation(origAnnotation, constPool);
                }
            }


            ParameterAnnotationsAttribute newAnnotationsAttribute = new ParameterAnnotationsAttribute(constPool,
                ParameterAnnotationsAttribute.visibleTag);


            newAnnotationsAttribute.setAnnotations(newParameterAnnotations);


            return newAnnotationsAttribute;
        }


        return null;

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                        newAnnotations[i][0].addMemberValue("name", new StringMemberValue(paramName, method
                                .getMethodInfo().getConstPool()));
                        i++;
                    }


                    ParameterAnnotationsAttribute newAnnotationsAttribute = new ParameterAnnotationsAttribute(
                            method.getMethodInfo().getConstPool(), ParameterAnnotationsAttribute.visibleTag);
                    newAnnotationsAttribute.setAnnotations(newAnnotations);
                    method.getMethodInfo().addAttribute(newAnnotationsAttribute);


                    customClass.addMethod(method);
                }
            }

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    private void addMethodParameterAnnotation(final CtMethod ctMethod, final Annotation[][] parameterAnnotations) {


        MethodInfo methodInfo = ctMethod.getMethodInfo();


        ParameterAnnotationsAttribute attribute = (ParameterAnnotationsAttribute) methodInfo
            .getAttribute(ParameterAnnotationsAttribute.visibleTag);


        if (attribute == null) {
            attribute = new ParameterAnnotationsAttribute(getConstPool(), ParameterAnnotationsAttribute.visibleTag);
        }
        
        List<javassist.bytecode.annotation.Annotation[]> result = CollectionFactory.newList();
        
        for (Annotation[] next : parameterAnnotations) 
        {
          List<javassist.bytecode.annotation.Annotation> list = CollectionFactory.newList();
          
      for (Annotation annotation : next) 
      {
            final javassist.bytecode.annotation.Annotation copy = toJavassistAnnotation(annotation);
            
            list.add(copy);
      }
      
      result.add(list.toArray(new javassist.bytecode.annotation.Annotation[]{}));
    }
        
        javassist.bytecode.annotation.Annotation[][] annotations = result.toArray(new javassist.bytecode.annotation.Annotation[][]{});
        
        attribute.setAnnotations(annotations);
        
        methodInfo.addAttribute(attribute);
    }

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                    populate(invisible.getAnnotations(), cf.getName());
                }
            }
            if (scanParameterAnnotations)
            {
                ParameterAnnotationsAttribute paramsVisible = (ParameterAnnotationsAttribute) method.getAttribute(ParameterAnnotationsAttribute.visibleTag);
                ParameterAnnotationsAttribute paramsInvisible = (ParameterAnnotationsAttribute) method.getAttribute(ParameterAnnotationsAttribute.invisibleTag);


                if (paramsVisible != null && paramsVisible.getAnnotations() != null)
                {
                    for (Annotation[] anns : paramsVisible.getAnnotations())
                    {
                        populate(anns, cf.getName());
                    }
                }
                if (paramsInvisible != null && paramsInvisible.getAnnotations() != null)
                {
                    for (Annotation[] anns : paramsInvisible.getAnnotations())
                    {
                        populate(anns, cf.getName());
                    }
                }
            }

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