public static Object handleBean()

in rt/frontend/jaxrs/src/main/java/org/apache/cxf/jaxrs/utils/InjectionUtils.java [647:772]
114 lines of code
30 McCabe index (conditional complexity)

    public static Object handleBean(Class<?> paramType, Annotation[] paramAnns,
                                    MultivaluedMap<String, String> values,
                                    ParameterType pType, Message message, boolean decoded) {
        Object bean = null;
        try {
            if (paramType.isInterface()) {
                paramType = org.apache.cxf.jaxrs.utils.JAXBUtils.getValueTypeFromAdapter(paramType,
                                                                                         paramType,
                                                                                         paramAnns);
            }
            bean = paramType.getDeclaredConstructor().newInstance();
        } catch (IllegalAccessException ex) {
            reportServerError("CLASS_ACCESS_FAILURE", paramType.getName());
        } catch (Exception ex) {
            reportServerError("CLASS_INSTANTIATION_FAILURE", paramType.getName());
        }

        Map<String, MultivaluedMap<String, String>> parsedValues =
            new HashMap<>();
        for (Map.Entry<String, List<String>> entry : values.entrySet()) {
            String memberKey = entry.getKey();
            final String beanKey;

            int idx = memberKey.indexOf('.');
            if (idx == -1) {
                beanKey = '.' + memberKey;
            } else {
                beanKey = memberKey.substring(0, idx);
                memberKey = memberKey.substring(idx + 1);
            }

            MultivaluedMap<String, String> value = parsedValues.get(beanKey);
            if (value == null) {
                value = new MetadataMap<>();
                parsedValues.put(beanKey, value);
            }
            value.put(memberKey, entry.getValue());
        }

        if (!parsedValues.isEmpty()) {
            for (Map.Entry<String, MultivaluedMap<String, String>> entry : parsedValues.entrySet()) {
                String memberKey = entry.getKey();

                boolean isbean = !memberKey.startsWith(".");
                if (!isbean) {
                    memberKey = memberKey.substring(1);
                }

                Object setter = null;
                Object getter = null;
                for (Method m : paramType.getMethods()) {
                    if (m.getName().equalsIgnoreCase("set" + memberKey)
                        && m.getParameterTypes().length == 1) {
                        setter = m;
                    } else if (m.getName().equalsIgnoreCase("get" + memberKey)
                        || isBooleanType(m.getReturnType())
                           && m.getName().equalsIgnoreCase("is" + memberKey)) {
                        getter = m;
                    }
                    if (setter != null && getter != null) {
                        break;
                    }
                }
                if (setter == null) {
                    for (Field f : paramType.getFields()) {
                        if (f.getName().equalsIgnoreCase(memberKey)) {
                            setter = f;
                            getter = f;
                            break;
                        }
                    }
                }

                if (setter != null && getter != null) {
                    final Class<?> type;
                    final Type genericType;
                    Object paramValue;
                    if (setter instanceof Method) {
                        type = Method.class.cast(setter).getParameterTypes()[0];
                        genericType = Method.class.cast(setter).getGenericParameterTypes()[0];
                        paramValue = InjectionUtils.extractFromMethod(bean, (Method) getter);
                    } else {
                        type = Field.class.cast(setter).getType();
                        genericType = Field.class.cast(setter).getGenericType();
                        paramValue = InjectionUtils.extractFieldValue((Field) getter, bean);
                    }

                    List<MultivaluedMap<String, String>> processedValuesList =
                        processValues(type, genericType, entry.getValue(), isbean);

                    for (MultivaluedMap<String, String> processedValues : processedValuesList) {
                        if (InjectionUtils.isSupportedCollectionOrArray(type)) {
                            Object appendValue = InjectionUtils.injectIntoCollectionOrArray(type,
                                                            genericType, paramAnns, processedValues,
                                                            isbean, true,
                                                            pType, message);
                            paramValue = InjectionUtils.mergeCollectionsOrArrays(paramValue, appendValue,
                                                            genericType);
                        } else if (isSupportedMap(genericType)) {
                            Object appendValue = injectIntoMap(
                                genericType, paramAnns, processedValues, true, pType, message);
                            paramValue = mergeMap(paramValue, appendValue);

                        } else if (isbean) {
                            paramValue = InjectionUtils.handleBean(type, paramAnns, processedValues,
                                                            pType, message, decoded);
                        } else {
                            paramValue = InjectionUtils.handleParameter(
                                processedValues.values().iterator().next().get(0),
                                decoded, type, type, paramAnns, pType, message);
                        }

                        if (paramValue != null) {
                            if (setter instanceof Method) {
                                InjectionUtils.injectThroughMethod(bean, (Method) setter, paramValue);
                            } else {
                                InjectionUtils.injectFieldValue((Field) setter, bean, paramValue);
                            }
                        }
                    }
                }
            }
        }

        return bean;
    }