static void findObjectIndexedPropertyDescriptors()

in struts2-uel-plugin/src/main/java/org/apache/struts2/uel/reflection/GenericReflectionProvider.java [672:742]
56 lines of code
21 McCabe index (conditional complexity)

    static void findObjectIndexedPropertyDescriptors(Class targetClass, Map intoMap)
            throws ReflectionException {
        Map allMethods = getMethods(targetClass, false);
        Map pairs = new HashMap(101);

        for (Iterator it = allMethods.keySet().iterator(); it.hasNext();) {
            String methodName = (String) it.next();
            List methods = (List) allMethods.get(methodName);

            /*
             * Only process set/get where there is exactly one implementation of the method per
             * class and those implementations are all the same
             */
            if (indexMethodCheck(methods)) {
                boolean isGet = false, isSet = false;
                Method m = (Method) methods.get(0);

                if (((isSet = methodName.startsWith(SET_PREFIX)) || (isGet = methodName.startsWith(GET_PREFIX)))
                        && (methodName.length() > 3)) {
                    String propertyName = Introspector.decapitalize(methodName.substring(3));
                    Class[] parameterTypes = getParameterTypes(m);
                    int parameterCount = parameterTypes.length;

                    if (isGet && (parameterCount == 1) && (m.getReturnType() != Void.TYPE)) {
                        List pair = (List) pairs.get(propertyName);

                        if (pair == null) {
                            pairs.put(propertyName, pair = new ArrayList());
                        }
                        pair.add(m);
                    }
                    if (isSet && (parameterCount == 2) && (m.getReturnType() == Void.TYPE)) {
                        List pair = (List) pairs.get(propertyName);

                        if (pair == null) {
                            pairs.put(propertyName, pair = new ArrayList());
                        }
                        pair.add(m);
                    }
                }
            }
        }

        for (Iterator it = pairs.keySet().iterator(); it.hasNext();) {
            String propertyName = (String) it.next();
            List methods = (List) pairs.get(propertyName);

            if (methods.size() == 2) {
                Method method1 = (Method) methods.get(0), method2 = (Method) methods.get(1), setMethod = (method1
                        .getParameterTypes().length == 2) ? method1 : method2, getMethod = (setMethod == method1) ? method2
                        : method1;
                Class keyType = getMethod.getParameterTypes()[0], propertyType = getMethod.getReturnType();

                if (keyType == setMethod.getParameterTypes()[0]) {
                    if (propertyType == setMethod.getParameterTypes()[1]) {
                        ObjectIndexedPropertyDescriptor propertyDescriptor;

                        try {
                            propertyDescriptor = new ObjectIndexedPropertyDescriptor(propertyName, propertyType,
                                    getMethod, setMethod);
                        } catch (Exception ex) {
                            throw new ReflectionException("creating object indexed property descriptor for '" + propertyName
                                    + "' in " + targetClass, ex);
                        }
                        intoMap.put(propertyName, propertyDescriptor);
                    }
                }

            }
        }
    }