private void defineDelegate()

in webbeans-impl/src/main/java/org/apache/webbeans/component/creation/DecoratorBeanBuilder.java [156:222]
60 lines of code
13 McCabe index (conditional complexity)

    private void defineDelegate(Set<InjectionPoint> injectionPoints)
    {
        boolean found = false;
        InjectionPoint ipFound = null;
        for (InjectionPoint ip : injectionPoints)
        {
            if (ip.isDelegate())
            {
                if (!found)
                {
                    found = true;
                    ipFound = ip;
                }
                else
                {
                    throw new WebBeansConfigurationException("Decorators must have a one @Delegate injection point. " +
                            "But the decorator bean : " + toString() + " has more than one");
                }
            }
        }


        if(ipFound == null)
        {
            throw new WebBeansConfigurationException("Decorators must have a one @Delegate injection point." +
                        "But the decorator bean : " + toString() + " has none");
        }

        if(!(ipFound.getMember() instanceof Constructor))
        {
            AnnotatedElement element = (AnnotatedElement)ipFound.getMember();
            if(!element.isAnnotationPresent(Inject.class))
            {
                String message = "Error in decorator : " + annotatedType + ". The delegate injection point must be an injected field, " +
                        "initializer method parameter or bean constructor method parameter.";

                throw new WebBeansConfigurationException(message);
            }
        }

        delegateType = GenericsUtil.resolveType(ipFound.getType(), annotatedType.getJavaClass(), ipFound.getMember());
        delegateQualifiers = ipFound.getQualifiers();

        for (Type decType : decoratedTypes)
        {
            if (!(ClassUtil.getClass(decType)).isAssignableFrom(ClassUtil.getClass(delegateType)))
            {
                throw new WebBeansConfigurationException("Decorator : " + toString() + " delegate attribute must implement all of the decorator decorated types" +
                        ", but decorator type " + decType + " is not assignable from delegate type of " + delegateType);
            }
            else
            {
                if(ClassUtil.isParametrizedType(decType) && ClassUtil.isParametrizedType(delegateType))
                {
                    checkParametrizedType();
                }
                else if (ClassUtil.isTypeVariable(decType))
                {
                    if (!decType.equals(delegateType))
                    {
                        throw new WebBeansConfigurationException("Decorator : " + toString() + " generic delegate attribute must be same with decorated type : " + decType);
                    }
                }

            }
        }
    }