Examples of javassist.bytecode.annotation.Annotation

javassist.bytecode.annotation.Annotation
The annotation structure.
An instance of this class is returned by getAnnotations() in AnnotationsAttribute or in ParameterAnnotationsAttribute. @see javassist.bytecode.AnnotationsAttribute#getAnnotations() @see javassist.bytecode.ParameterAnnotationsAttribute#getAnnotations() @see MemberValue @see MemberValueVisitor @see AnnotationsWriter @author Bill Burke @author Shigeru Chiba @author Adrian Brock

    if (annoAttr == null) {
      annoAttr = new AnnotationsAttribute(constPool, AnnotationsAttribute.visibleTag);
    }


    // Create annotation if it does not exist
    Annotation a = new Annotation(EnhancedClassFile.class.getName(), constPool);


    // Replace annotation
    annoAttr.addAnnotation(a);


    // Replace annotation attribute

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    if (annoAttr == null) {
      annoAttr = new AnnotationsAttribute(constPool, AnnotationsAttribute.visibleTag);
    }


    // Create annotation if it does not exist
    Annotation a = annoAttr.getAnnotation(ResourceMetaData.class.getName());
    if (a == null) {
      a = new Annotation(ResourceMetaData.class.getName(), constPool);
      // Add a name, otherwise there will be none in the generated descriptor.
      a.addMemberValue("name", new StringMemberValue(
              ResourceMetaDataFactory.getDefaultName(aClazz), constPool));
    }


    // Update description from JavaDoc
    String doc = Util.getComponentDocumentation(aAST, aClazz.getName());

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        for (CtField cf: ctClass.getDeclaredFields()) {
            if (hasAnnotation(cf, siena.Max.class.getName())) {
              // retrieves @siena.Max value
              AnnotationsAttribute attr = getAnnotations(cf);
              Annotation orig = attr.getAnnotation(Max.class.getName());
              int val = ((IntegerMemberValue)orig.getMemberValue("value")).getValue();


              // adds @play.data.validation.MaxSize value
              Map<String, MemberValue> map = new HashMap<String, MemberValue>();
              map.put("value", new IntegerMemberValue(attr.getConstPool(), val));

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    if ( makeTransient ) {
      theField.setModifiers( theField.getModifiers() | Modifier.TRANSIENT );
    }
    theField.setModifiers( Modifier.setPrivate( theField.getModifiers() ) );
    AnnotationsAttribute annotationsAttribute = getVisibleAnnotations( theField.getFieldInfo() );
    annotationsAttribute.addAnnotation( new Annotation( Transient.class.getName(), constPool ) );
    return theField;
  }

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                            }


                            // if help for this command is found - add GoGo descriptor for this shell command
                            if (help.containsKey(shellCommandName)) {
                                AnnotationsAttribute annotationsAttribute = new AnnotationsAttribute(constPool, AnnotationsAttribute.visibleTag);
                                Annotation annotation = new Annotation(Descriptor.class.getName(), constPool);
                                annotation.addMemberValue("value", new StringMemberValue(help.get(shellCommandName), constPool)); //todo: add help
                                annotationsAttribute.addAnnotation(annotation);
                                ctMethod.getMethodInfo().addAttribute(annotationsAttribute);
                            }


                            // add method to class

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      cf.setInterfaces(new String[]{WebAppBootstrap.class.getName()});


      // add @Generated
      ConstPool cp = cf.getConstPool();
      AnnotationsAttribute attr = new AnnotationsAttribute(cp, AnnotationsAttribute.visibleTag);
      attr.setAnnotation(new Annotation(Generated.class.getName(), cp));
      cf.addAttribute(attr);


      // write the file
      cf.write(new DataOutputStream(new FileOutputStream(filename)));

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    // 1.2.1] Create an annotation for the class
    
    AnnotationsAttribute attrClass = new AnnotationsAttribute(constpool, AnnotationsAttribute.visibleTag);
    
    // 1.2.1.1] Entity
    Annotation annotEntity = new Annotation("javax.persistence.Entity", constpool);
    attrClass.addAnnotation(annotEntity);
    
    // 1.2.1.2] Table info
    Annotation annotTable = new Annotation("javax.persistence.Table", constpool);
    annotTable.addMemberValue("name", new StringMemberValue("TEST_CLASS", ccFile.getConstPool()));
    annotTable.addMemberValue("schema", new StringMemberValue("KunderaTest@mongoPU", ccFile.getConstPool()));    
    attrClass.addAnnotation(annotTable);
    
    // 1.2.1.3] Attach the annotation to the class
    
    ccFile.addAttribute(attrClass);
    
    // 1.2.2] Create an annotation for the field     
    
    // 1.2.2.1] Annotation Id
    AnnotationsAttribute attrIdField = new AnnotationsAttribute(constpool, AnnotationsAttribute.visibleTag);
    
    Annotation annotId = new Annotation("javax.persistence.Id", constpool);
    attrIdField.addAnnotation(annotId);
    idField.getFieldInfo().addAttribute(attrIdField);
    
    // 1.2.2.2] Annotation Column (name="testField")
    AnnotationsAttribute attrTestField = new AnnotationsAttribute(constpool, AnnotationsAttribute.visibleTag);
    
    Annotation annotCol = new Annotation("javax.persistence.Column", constpool);
    annotCol.addMemberValue("name", new StringMemberValue("TEST_FIELD", ccFile.getConstPool()));
    attrTestField.addAnnotation(annotCol);
    testField.getFieldInfo().addAttribute(attrTestField);
    
    if (null != testField2) {
      AnnotationsAttribute attrTestField2 = new AnnotationsAttribute(constpool, AnnotationsAttribute.visibleTag);
      
      Annotation annotCol2 = new Annotation("javax.persistence.Column", constpool);
      annotCol.addMemberValue("name", new StringMemberValue("TEST_FIELD2", ccFile.getConstPool()));
      attrTestField2.addAnnotation(annotCol2);
      testField2.getFieldInfo().addAttribute(attrTestField2);
    }

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                                    String typeName = annotation.getTypeName();
                                    if (typeName.equals(DirectCopyTransform.class.getName())) {
                                        ArrayMemberValue arrayMember = (ArrayMemberValue) annotation.getMemberValue("value");
                                        for (MemberValue arrayMemberValue : arrayMember.getValue()) {
                                            AnnotationMemberValue member = (AnnotationMemberValue) arrayMemberValue;
                                            Annotation memberAnnot = member.getValue();
                                            ArrayMemberValue annot = (ArrayMemberValue) memberAnnot.getMemberValue("templateTokens");
                                            for (MemberValue memberValue : annot.getValue()) {
                                                String val = ((StringMemberValue) memberValue).getValue();
                                                if (val != null && templateTokens.containsKey(val)) {
                                                    templateCheck: {
                                                        for (DirectCopyIgnorePattern matchedPattern : matchedPatterns) {
                                                            for (String ignoreToken : matchedPattern.getTemplateTokenPatterns()) {
                                                                if (val.matches(ignoreToken)) {
                                                                    break templateCheck;
                                                                }
                                                            }
                                                        }
                                                        templates.add(templateTokens.get(val));
                                                    }
                                                }
                                            }
                                            BooleanMemberValue skipAnnot = (BooleanMemberValue) memberAnnot.getMemberValue("skipOverlaps");
                                            if (skipAnnot != null) {
                                                skips.add(skipAnnot.getValue());
                                            } else {
                                                skips.add(mySkipOverlaps);
                                            }
                                            BooleanMemberValue renameAnnot = (BooleanMemberValue) memberAnnot.getMemberValue("renameMethodOverlaps");
                                            if (renameAnnot != null) {
                                                renames.add(renameAnnot.getValue());
                                            } else {
                                                renames.add(myRenameMethodOverlaps);
                                            }

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    }


    protected void buildClassLevelAnnotations(ClassFile classFile, ClassFile templateClassFile, ConstPool constantPool) throws NotFoundException {
        List<?> templateAttributes = templateClassFile.getAttributes();
        Iterator<?> templateItr = templateAttributes.iterator();
        Annotation templateEntityListeners = null;
        while(templateItr.hasNext()) {
            Object object = templateItr.next();
            if (AnnotationsAttribute.class.isAssignableFrom(object.getClass())) {
                AnnotationsAttribute attr = (AnnotationsAttribute) object;
                Annotation[] items = attr.getAnnotations();
                for (Annotation annotation : items) {
                    String typeName = annotation.getTypeName();
                    if (typeName.equals(EntityListeners.class.getName())) {
                        templateEntityListeners = annotation;
                    }
                }
            }
        }


        if (templateEntityListeners != null) {
            AnnotationsAttribute annotationsAttribute = new AnnotationsAttribute(constantPool, AnnotationsAttribute.visibleTag);
            List<?> attributes = classFile.getAttributes();
            Iterator<?> itr = attributes.iterator();
            Annotation existingEntityListeners = null;
            while(itr.hasNext()) {
                Object object = itr.next();
                if (AnnotationsAttribute.class.isAssignableFrom(object.getClass())) {
                    AnnotationsAttribute attr = (AnnotationsAttribute) object;
                    Annotation[] items = attr.getAnnotations();
                    for (Annotation annotation : items) {
                        String typeName = annotation.getTypeName();
                        if (typeName.equals(EntityListeners.class.getName())) {
                            logger.debug("Stripping out previous EntityListeners annotation at the class level - will merge into new EntityListeners");
                            existingEntityListeners = annotation;
                            continue;
                        }
                        annotationsAttribute.addAnnotation(annotation);
                    }
                    itr.remove();
                }
            }


            Annotation entityListeners = getEntityListeners(constantPool, existingEntityListeners, templateEntityListeners);
            annotationsAttribute.addAnnotation(entityListeners);


            classFile.addAttribute(annotationsAttribute);
        }
    }

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            classFile.addAttribute(annotationsAttribute);
        }
    }


    protected Annotation getEntityListeners(ConstPool constantPool, Annotation existingEntityListeners, Annotation templateEntityListeners) {
        Annotation listeners = new Annotation(EntityListeners.class.getName(), constantPool);
        ArrayMemberValue listenerArray = new ArrayMemberValue(constantPool);
        Set<MemberValue> listenerMemberValues = new HashSet<MemberValue>();
        {
            ArrayMemberValue templateListenerValues = (ArrayMemberValue) templateEntityListeners.getMemberValue("value");
            listenerMemberValues.addAll(Arrays.asList(templateListenerValues.getValue()));
            logger.debug("Adding template values to new EntityListeners");
        }
        if (existingEntityListeners != null) {
            ArrayMemberValue oldListenerValues = (ArrayMemberValue) existingEntityListeners.getMemberValue("value");
            listenerMemberValues.addAll(Arrays.asList(oldListenerValues.getValue()));
            logger.debug("Adding previous values to new EntityListeners");
        }
        listenerArray.setValue(listenerMemberValues.toArray(new MemberValue[listenerMemberValues.size()]));
        listeners.addMemberValue("value", listenerArray);


        return listeners;


    }

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