private String extractPropertyNameOfPropertyPath()

in core/src/main/java/org/apache/myfaces/extensions/validator/core/el/DefaultELHelper.java [235:275]

33 lines of code
5 McCabe index (conditional complexity)


    private String extractPropertyNameOfPropertyPath(String propertyChain)
    {
        String[] properties = propertyChain.split("\\.");

        Object currentPropertyValue = getBean(properties[0]);

        Method currentMethod;
        String currentPropertyName;
        Class currentClassOfPropertyValue;
        for(int i = 1; i < properties.length; i++)
        {
            currentPropertyName = properties[i];
            currentClassOfPropertyValue = ProxyUtils.getUnproxiedClass(currentPropertyValue.getClass());
            currentMethod = ReflectionUtils.tryToGetMethod(currentClassOfPropertyValue,
                "get" + currentPropertyName.substring(0, 1).toUpperCase() + currentPropertyName.substring(1));

            if(currentMethod == null && currentPropertyValue instanceof Map)
            {
                //it's ok for the simple map case - but not for e.g.:
                //#{bean1[bean2.propertyNameProvider[ bean3.index]]}
                //or every other complex replacement for bean3.index
                //it might also require an adjustment at FaceletsTaglibExpressionHelper#tryToTransformToRealBinding
                ((Map)currentPropertyValue).get(currentPropertyName);
            }
            else
            {
                currentPropertyValue = ReflectionUtils.tryToInvokeMethod(currentPropertyValue, currentMethod);
            }
        }

        if(currentPropertyValue instanceof String)
        {
            return (String)currentPropertyValue;
        }
        else
        {
            this.logger.severe("unexpected value within map syntax: " + propertyChain +
                    " last property name: " + currentPropertyValue);
            return null;
        }
    }