public DynamicMBeanWrapper()

in deltaspike/core/impl/src/main/java/org/apache/deltaspike/core/impl/jmx/DynamicMBeanWrapper.java [102:264]
141 lines of code
24 McCabe index (conditional complexity)

    public DynamicMBeanWrapper(final Class<?> annotatedMBean,
                               final boolean normalScope,
                               final Annotation[] qualifiers)
    {
        this.clazz = annotatedMBean;
        this.classloader = Thread.currentThread().getContextClassLoader();
        this.normalScope = normalScope;
        this.qualifiers = qualifiers;

        final List<MBeanAttributeInfo> attributeInfos = new ArrayList<MBeanAttributeInfo>();
        final List<MBeanOperationInfo> operationInfos = new ArrayList<MBeanOperationInfo>();
        final List<MBeanNotificationInfo> notificationInfos = new ArrayList<MBeanNotificationInfo>();

        // class
        final String description =
            getDescription(annotatedMBean.getAnnotation(MBean.class).description(), annotatedMBean.getName());

        final NotificationInfo notification = annotatedMBean.getAnnotation(NotificationInfo.class);
        if (notification != null)
        {
            notificationInfos.add(getNotificationInfo(notification, annotatedMBean.getName()));
        }

        final NotificationInfo.List notifications = annotatedMBean.getAnnotation(NotificationInfo.List.class);
        if (notifications != null)
        {
            for (NotificationInfo notificationInfo : notifications.value())
            {
                notificationInfos.add(getNotificationInfo(notificationInfo, annotatedMBean.getName()));
            }
        }


        // methods
        for (Method method : annotatedMBean.getMethods())
        {
            final int modifiers = method.getModifiers();
            final JmxManaged annotation = method.getAnnotation(JmxManaged.class);
            if (method.getDeclaringClass().equals(Object.class)
                    || !Modifier.isPublic(modifiers)
                    || Modifier.isAbstract(modifiers)
                    || Modifier.isStatic(modifiers)
                    || annotation == null)
            {
                continue;
            }

            operations.put(method.getName(), new Operation(method, annotation.convertToTabularData()));

            String operationDescr = getDescription(annotation.description(), method.getName());
            
            Annotation[][] parametersAnnotations = method.getParameterAnnotations();
            Class<?>[] parameterTypes = method.getParameterTypes();
            MBeanParameterInfo[] parameterInfos = new MBeanParameterInfo[parameterTypes.length];
            for (int i = 0; i < parametersAnnotations.length; i++)
            {
                String parameterDescription = null;
                String parameterName = "p" + (i + 1);
                String java8ParameterName = ParameterUtil.getName(method, i);
                if (java8ParameterName != null)
                {
                    parameterName = java8ParameterName;
                }
                for (int j = 0; j < parametersAnnotations[i].length; j++)
                {
                    if (parametersAnnotations[i][j] instanceof JmxParameter)
                    {
                        JmxParameter jmxParameter = (JmxParameter) parametersAnnotations[i][j];
                        if (!"".equals(jmxParameter.name()))
                        {
                            parameterName = jmxParameter.name();
                        }
                        if (!"".equals(jmxParameter.description()))
                        {
                            parameterDescription = jmxParameter.description();
                        }
                    }
                }
                parameterInfos[i] = new MBeanParameterInfo(parameterName,
                    parameterTypes[i].getName(),
                    parameterDescription
                );
            }

            operationInfos.add(new MBeanOperationInfo(method.getName(),
                operationDescr,
                parameterInfos,
                method.getReturnType().getName(),
                MBeanOperationInfo.UNKNOWN
            ));
        }

        Class<?> clazz = annotatedMBean;
        while (!Object.class.equals(clazz) && clazz != null)
        {
            for (Field field : clazz.getDeclaredFields())
            {
                final JmxManaged annotation = field.getAnnotation(JmxManaged.class);
                if (annotation != null)
                {
                    field.setAccessible(true);

                    final String fieldName = field.getName();
                    final String fieldDescription = getDescription(annotation.description(), fieldName);
                    final Class<?> type = field.getType();

                    final String methodName;
                    if (fieldName.length() > 1)
                    {
                        methodName = Character.toUpperCase(fieldName.charAt(0)) + fieldName.substring(1);
                    }
                    else
                    {
                        methodName = Character.toString(Character.toUpperCase(fieldName.charAt(0)));
                    }

                    Method setter = null;
                    Method getter = null;
                    try
                    {
                        getter = clazz.getMethod("get" + methodName);
                    }
                    catch (NoSuchMethodException e1)
                    {
                        try
                        {
                            getter = clazz.getMethod("is" + methodName);
                        }
                        catch (NoSuchMethodException e2)
                        {
                            // ignored
                        }
                    }
                    try
                    {
                        setter = clazz.getMethod("set" + methodName, field.getType());
                    }
                    catch (NoSuchMethodException e)
                    {
                        // ignored
                    }

                    attributeInfos.add(new MBeanAttributeInfo(
                        fieldName, toMBeanType(type).getName(), fieldDescription,
                            getter != null, setter != null, false));

                    fields.put(fieldName, new AttributeAccessor(getter, setter, annotation.convertToTabularData()));
                }
            }
            clazz = clazz.getSuperclass();
        }

        Collections.sort(attributeInfos, MBeanFeatureInfoSorter.INSTANCE);
        Collections.sort(operationInfos, MBeanFeatureInfoSorter.INSTANCE);
        Collections.sort(notificationInfos, MBeanFeatureInfoSorter.INSTANCE);

        info = new MBeanInfo(annotatedMBean.getName(),
                description,
                attributeInfos.toArray(new MBeanAttributeInfo[attributeInfos.size()]),
                null, // default constructor is mandatory
                operationInfos.toArray(new MBeanOperationInfo[operationInfos.size()]),
                notificationInfos.toArray(new MBeanNotificationInfo[notificationInfos.size()]));
    }