public MethodPropertyImpl()

in deltaspike/modules/data/impl/src/main/java/org/apache/deltaspike/data/impl/property/MethodPropertyImpl.java [43:102]
60 lines of code
12 McCabe index (conditional complexity)

    public MethodPropertyImpl(Method method)
    {
        final String accessorMethodPrefix;
        final String propertyNameInAccessorMethod;
        if (method.getName().startsWith(GETTER_METHOD_PREFIX))
        {
            if (method.getReturnType() == Void.TYPE)
            {
                throw new IllegalArgumentException(
                        "Invalid accessor method, must have return value if starts with 'get'. Method: " + method);
            }
            else if (method.getParameterTypes().length > 0)
            {
                throw new IllegalArgumentException(
                        "Invalid accessor method, must have zero arguments if starts with 'get'. Method: " + method);
            }
            propertyNameInAccessorMethod = method.getName().substring(GETTER_METHOD_PREFIX_LENGTH);
            accessorMethodPrefix = GETTER_METHOD_PREFIX;
        }
        else if (method.getName().startsWith(SETTER_METHOD_PREFIX))
        {
            if (method.getReturnType() != Void.TYPE)
            {
                throw new IllegalArgumentException(
                        "Invalid accessor method, must not have return value if starts with 'set'. Method: " + method);
            }
            else if (method.getParameterTypes().length != 1)
            {
                throw new IllegalArgumentException(
                        "Invalid accessor method, must have one argument if starts with 'set'. Method: " + method);
            }
            propertyNameInAccessorMethod = method.getName().substring(SETTER_METHOD_PREFIX_LENGTH);
            accessorMethodPrefix = SETTER_METHOD_PREFIX;
        }
        else if (method.getName().startsWith(BOOLEAN_GETTER_METHOD_PREFIX))
        {
            if (method.getReturnType() != Boolean.TYPE || !method.getReturnType().isPrimitive())
            {
                throw new IllegalArgumentException(
                        "Invalid accessor method, must return boolean primitive if starts " +
                        "with 'is'. Method: " + method);
            }
            propertyNameInAccessorMethod = method.getName().substring(BOOLEAN_GETTER_METHOD_PREFIX_LENGTH);
            accessorMethodPrefix = BOOLEAN_GETTER_METHOD_PREFIX;
        }
        else
        {
            throw new IllegalArgumentException("Invalid accessor method, must start with 'get', 'set' or 'is'. "
                    + "Method: " + method);
        }
        if (propertyNameInAccessorMethod.length() == 0
                || !Character.isUpperCase(propertyNameInAccessorMethod.charAt(0)))
        {
            throw new IllegalArgumentException("Invalid accessor method, prefix '" + accessorMethodPrefix
                    + "' must be followed a non-empty property name, capitalized. Method: " + method);
        }
        this.propertyName = Introspector.decapitalize(propertyNameInAccessorMethod);
        this.getterMethod = getGetterMethod(method.getDeclaringClass(), propertyName);
        this.setterMethod = getSetterMethod(method.getDeclaringClass(), propertyName);
    }