Examples of AnnotationsAttribute

javassist.bytecode.AnnotationsAttribute
A class representing RuntimeVisibleAnnotations_attribute and RuntimeInvisibleAnnotations_attribute.
To obtain an AnnotationAttribute object, invoke getAttribute(AnnotationsAttribute.visibleTag) in ClassFile, MethodInfo, or FieldInfo. The obtained attribute is a runtime visible annotations attribute. If the parameter is AnnotationAttribute.invisibleTag, then the obtained attribute is a runtime invisible one.
For example,
This code snippet retrieves an annotation of the type Author from the MethodInfo object specified by minfo. Then, it prints the value of name in Author.
If the annotation type Author is annotated by a meta annotation:
Then Author is visible at runtime. Therefore, the third statement of the code snippet above must be changed into:
The attribute tag must be visibleTag instead of invisibleTag.
If the member value of an annotation is not specified, the default value is used as that member value. If so, getMemberValue() in Annotation returns null since the default value is not included in the AnnotationsAttribute. It is included in the AnnotationDefaultAttribute of the method declared in the annotation type.
If you want to record a new AnnotationAttribute object, execute the following snippet:
The last statement is necessary if the class file was produced by Javassist or JDK 1.4. Otherwise, it is not necessary. @see AnnotationDefaultAttribute @see javassist.bytecode.annotation.Annotation
org.hotswap.agent.javassist.bytecode.AnnotationsAttribute
A class representing RuntimeVisibleAnnotations_attribute and RuntimeInvisibleAnnotations_attribute.

To obtain an AnnotationAttribute object, invoke getAttribute(AnnotationsAttribute.visibleTag) in ClassFile, MethodInfo, or FieldInfo. The obtained attribute is a runtime visible annotations attribute. If the parameter is AnnotationAttribute.invisibleTag, then the obtained attribute is a runtime invisible one.

For example,
This code snippet retrieves an annotation of the type Author from the MethodInfo object specified by minfo. Then, it prints the value of name in Author.

If the annotation type Author is annotated by a meta annotation:
Then Author is visible at runtime. Therefore, the third statement of the code snippet above must be changed into:
The attribute tag must be visibleTag instead of invisibleTag.

If the member value of an annotation is not specified, the default value is used as that member value. If so, getMemberValue() in Annotation returns null since the default value is not included in the AnnotationsAttribute. It is included in the AnnotationDefaultAttribute of the method declared in the annotation type.

If you want to record a new AnnotationAttribute object, execute the following snippet:
The last statement is necessary if the class file was produced by Javassist or JDK 1.4. Otherwise, it is not necessary. @see AnnotationDefaultAttribute @see org.hotswap.agent.javassist.bytecode.annotation.Annotation
org.jboss.classfilewriter.annotations.AnnotationsAttribute
An annotations attribute @author Stuart Douglas
org.jboss.forge.furnace.proxy.javassist.bytecode.AnnotationsAttribute
A class representing RuntimeVisibleAnnotations_attribute and RuntimeInvisibleAnnotations_attribute.
To obtain an AnnotationAttribute object, invoke getAttribute(AnnotationsAttribute.visibleTag) in ClassFile, MethodInfo, or FieldInfo. The obtained attribute is a runtime visible annotations attribute. If the parameter is AnnotationAttribute.invisibleTag, then the obtained attribute is a runtime invisible one.
For example,
This code snippet retrieves an annotation of the type Author from the MethodInfo object specified by minfo. Then, it prints the value of name in Author.
If the annotation type Author is annotated by a meta annotation:
Then Author is visible at runtime. Therefore, the third statement of the code snippet above must be changed into:
The attribute tag must be visibleTag instead of invisibleTag.
If the member value of an annotation is not specified, the default value is used as that member value. If so, getMemberValue() in Annotation returns null since the default value is not included in the AnnotationsAttribute. It is included in the AnnotationDefaultAttribute of the method declared in the annotation type.
If you want to record a new AnnotationAttribute object, execute the following snippet:
The last statement is necessary if the class file was produced by Javassist or JDK 1.4. Otherwise, it is not necessary. @see AnnotationDefaultAttribute @see org.jboss.forge.furnace.proxy.javassist.bytecode.annotation.Annotation

Examples of javassist.bytecode.AnnotationsAttribute

        }


        for (Object obj : fields)
        {
            FieldInfo field = (FieldInfo) obj;
            AnnotationsAttribute visible = (AnnotationsAttribute) field.getAttribute(AnnotationsAttribute.visibleTag);
            AnnotationsAttribute invisible = (AnnotationsAttribute) field.getAttribute(AnnotationsAttribute.invisibleTag);


            if (visible != null)
            {
                populate(visible.getAnnotations(), cf.getName());
            }
            if (invisible != null)
            {
                populate(invisible.getAnnotations(), cf.getName());
            }
        }




    }

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Examples of javassist.bytecode.AnnotationsAttribute

   /**
    * Check if the Javassist {@link ClassFile} has the specfied annotation
    */
   protected boolean hasAnnotation(ClassFile classFile, Class<? extends Annotation> annotationType)
   { 
      AnnotationsAttribute visible = (AnnotationsAttribute) classFile.getAttribute( AnnotationsAttribute.visibleTag ); 
      if ( visible != null ) 
      {
         return visible.getAnnotation( annotationType.getName() ) != null; 
      } 
      return false; 
   }

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Examples of javassist.bytecode.AnnotationsAttribute

    * Get the value of the annotation on the Javassist {@link ClassFile}, or null
    * if the class doesn't have that annotation
    */
   protected String getAnnotationValue(ClassFile classFile, Class<? extends Annotation> annotationType, String memberName)
   { 
      AnnotationsAttribute visible = (AnnotationsAttribute) classFile.getAttribute( AnnotationsAttribute.visibleTag ); 
      if ( visible != null ) 
      {
         javassist.bytecode.annotation.Annotation annotation = visible.getAnnotation( annotationType.getName() );
         if (annotation==null)
         {
            return null;
         }
         else

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Examples of javassist.bytecode.AnnotationsAttribute


    private static void addNewAnnotations(Annotation[] add, CtMethod method, ConstPool constpool, ClassPool classPool, AnnotationsAttribute attr)
        throws IllegalAccessException, NotFoundException, InvocationTargetException
    {
        if (null == attr) {
            attr = new AnnotationsAttribute(constpool, AnnotationsAttribute.visibleTag);
            method.getMethodInfo().addAttribute(attr);
        }
        for (Annotation toAdd : add) {
            attr.addAnnotation(toJavassist(toAdd, constpool, classPool));
        }

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Examples of javassist.bytecode.AnnotationsAttribute

        }
    }


    private static AnnotationsAttribute filterExistingAnnotations(Annotation[] remove, CtMethod method)
    {
        AnnotationsAttribute attr = null;
        final List attributes = method.getMethodInfo().getAttributes();
        for (Object attribute : attributes) {
            if (attribute instanceof AnnotationsAttribute) {
                attr = (AnnotationsAttribute) attribute;
                final List<javassist.bytecode.annotation.Annotation> annotations = new ArrayList<javassist.bytecode.annotation.Annotation>();
                for (javassist.bytecode.annotation.Annotation annotation : attr.getAnnotations()) {
                    boolean shouldRemove = false;
                    for (Annotation annotationToRemove : remove) {
                        if (annotationToRemove.annotationType().getCanonicalName().equals(annotation.getTypeName())) {
                            shouldRemove = true;
                        }
                    }
                    if (!shouldRemove) {
                        annotations.add(annotation);
                    }
                }
                attr.setAnnotations(annotations.toArray(new javassist.bytecode.annotation.Annotation[annotations.size()]));
            }
        }
        return attr;
    }

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Examples of javassist.bytecode.AnnotationsAttribute

        ClassPool pool = ClassPool.getDefault();
        CtClass cc = pool.get(clazz.getCanonicalName());
        for (CtMethod method : cc.getDeclaredMethods()) {
            ClassFile ccFile = cc.getClassFile();
            ConstPool constpool = ccFile.getConstPool();
            AnnotationsAttribute attr;
            attr = filterExistingAnnotations(add, method);
            addNewAnnotations(add, method, constpool, pool, attr);
        }
        cc.setName(cc.getName() + "$ClassModifier$" + COUNTER.increment());
        cc.setSuperclass(pool.get(clazz.getCanonicalName()));

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Examples of javassist.bytecode.AnnotationsAttribute

  }


  protected void scanClass(ClassFile cf)
  {
    String className = cf.getName();
    AnnotationsAttribute visible = (AnnotationsAttribute) cf.getAttribute(AnnotationsAttribute.visibleTag);
    AnnotationsAttribute invisible = (AnnotationsAttribute) cf.getAttribute(AnnotationsAttribute.invisibleTag);


    if (visible != null)
    {
      populate(visible.getAnnotations(), className);
    }
    if (invisible != null)
    {
      populate(invisible.getAnnotations(), className);
    }
    populateInterfaces(cf);
  }

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Examples of javassist.bytecode.AnnotationsAttribute

    for (Object obj : methods)
    {
      MethodInfo method = (MethodInfo) obj;
      if (scanMethodAnnotations)
      {
        AnnotationsAttribute visible = (AnnotationsAttribute) method.getAttribute(AnnotationsAttribute.visibleTag);
        AnnotationsAttribute invisible = (AnnotationsAttribute) method.getAttribute(AnnotationsAttribute.invisibleTag);


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

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Examples of javassist.bytecode.AnnotationsAttribute

      return;
    }
    for (Object obj : fields)
    {
      FieldInfo field = (FieldInfo) obj;
      AnnotationsAttribute visible = (AnnotationsAttribute) field.getAttribute(AnnotationsAttribute.visibleTag);
      AnnotationsAttribute invisible = (AnnotationsAttribute) field.getAttribute(AnnotationsAttribute.invisibleTag);


      if (visible != null)
      {
        populate(visible.getAnnotations(), cf.getName());
      }
      if (invisible != null)
      {
        populate(invisible.getAnnotations(), cf.getName());
      }
    }
  }

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Examples of javassist.bytecode.AnnotationsAttribute

                        ctMethod.setModifiers(Modifier.PUBLIC);
                        ctMethod.setBody("runCommand(\"" + name + "\", $1, $2);");
                        ctClass.addMethod(ctMethod);


                        // add GoGo descriptor for this shell command
                        AnnotationsAttribute annotationsAttribute = new AnnotationsAttribute(constPool, AnnotationsAttribute.visibleTag);
                        Annotation annotation = new Annotation(Descriptor.class.getName(), constPool);
                        annotation.addMemberValue("value", new StringMemberValue(commands.get(name), constPool));
                        annotationsAttribute.addAnnotation(annotation);
                        ctMethod.getMethodInfo().addAttribute(annotationsAttribute);
                    }
                }
            }

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