public static boolean checkRequiredTypeIsWildCard()

in webbeans-impl/src/main/java/org/apache/webbeans/util/ClassUtil.java [621:724]
88 lines of code
28 McCabe index (conditional complexity)

    public static boolean checkRequiredTypeIsWildCard(Type beanTypeArg, Type requiredTypeArg)
    {
        WildcardType wctRequiredTypeArg = (WildcardType)requiredTypeArg;
        Type upperBoundRequiredTypeArg =  wctRequiredTypeArg.getUpperBounds()[0];
        Type[] lowerBoundRequiredTypeArgs =  wctRequiredTypeArg.getLowerBounds();
        
        if(beanTypeArg instanceof Class)
        {
            Class<?> clazzBeanTypeArg = (Class<?>)beanTypeArg;
            if(upperBoundRequiredTypeArg instanceof Class)
            {
                //Check upper bounds
                Class<?> clazzUpperBoundTypeArg = (Class<?>)upperBoundRequiredTypeArg;
                if(clazzUpperBoundTypeArg != Object.class)
                {
                    if(!clazzUpperBoundTypeArg.isAssignableFrom(clazzBeanTypeArg))
                    {
                        return false;
                    }
                }

                //Check lower bounds
                if(lowerBoundRequiredTypeArgs.length > 0 &&  lowerBoundRequiredTypeArgs[0] instanceof Class)
                {
                    Class<?> clazzLowerBoundTypeArg = (Class<?>)lowerBoundRequiredTypeArgs[0];

                    if(clazzLowerBoundTypeArg != Object.class)
                    {
                        if(!clazzBeanTypeArg.isAssignableFrom(clazzLowerBoundTypeArg))
                        {
                            return false;
                        }
                    }
                }
            }
        }
        else if(isTypeVariable(beanTypeArg))
        {
            TypeVariable<?> tvBeanTypeArg = (TypeVariable<?>)beanTypeArg;
            Type tvBound = tvBeanTypeArg.getBounds()[0];
            
            if(tvBound instanceof Class)
            {
                Class<?> clazzTvBound = (Class<?>)tvBound;
                
                if(upperBoundRequiredTypeArg instanceof Class)
                {
                    Class<?> clazzUpperBoundTypeArg = (Class<?>)upperBoundRequiredTypeArg;                    
                    if(clazzUpperBoundTypeArg != Object.class && clazzTvBound != Object.class)
                    {
                        if(!clazzUpperBoundTypeArg.isAssignableFrom(clazzTvBound))
                        {   
                            return false;
                        }                       
                    }
                    
                    //Check lower bounds
                    if(lowerBoundRequiredTypeArgs.length > 0 &&  lowerBoundRequiredTypeArgs[0] instanceof Class)
                    {
                        Class<?> clazzLowerBoundTypeArg = (Class<?>)lowerBoundRequiredTypeArgs[0];
                        
                        if(clazzLowerBoundTypeArg != Object.class)
                        {
                            if(!clazzTvBound.isAssignableFrom(clazzLowerBoundTypeArg))
                            {
                                return false;
                            }                                    
                        }
                    }                    
                }                                    
            }
        }
        else if (beanTypeArg instanceof ParameterizedType)
        {
            final ParameterizedType pt = (ParameterizedType) beanTypeArg;
            if(pt.getRawType() instanceof Class && upperBoundRequiredTypeArg instanceof Class)
            {
                final Class<?> beanRawClass = (Class) pt.getRawType();

                //Check upper bounds
                Class<?> clazzUpperBoundTypeArg = (Class<?>)upperBoundRequiredTypeArg;
                if(clazzUpperBoundTypeArg != Object.class)
                {
                    if(!clazzUpperBoundTypeArg.isAssignableFrom(beanRawClass))
                    {
                        return false;
                    }
                }

                //Check lower bounds
                if(lowerBoundRequiredTypeArgs.length > 0 &&  lowerBoundRequiredTypeArgs[0] instanceof Class)
                {
                    Class<?> clazzLowerBoundTypeArg = (Class<?>)lowerBoundRequiredTypeArgs[0];

                    if(clazzLowerBoundTypeArg != Object.class && !beanRawClass.isAssignableFrom(clazzLowerBoundTypeArg))
                    {
                        return false;
                    }
                }
            }
        }
         
        return true;
    }