public static JsonElement replaceSmilingPlaceholder()

in hertzbeat-collector/hertzbeat-collector-common/src/main/java/org/apache/hertzbeat/collector/util/CollectUtil.java [306:401]
91 lines of code
24 McCabe index (conditional complexity)

    public static JsonElement replaceSmilingPlaceholder(JsonElement jsonElement, Map<String, Configmap> configmap) {
        if (jsonElement.isJsonObject()) {
            JsonObject jsonObject = jsonElement.getAsJsonObject();
            Iterator<Map.Entry<String, JsonElement>> iterator = jsonObject.entrySet().iterator();
            while (iterator.hasNext()) {
                Map.Entry<String, JsonElement> entry = iterator.next();
                JsonElement element = entry.getValue();
                String key = entry.getKey();
                // Replace the attributes of the KEY-VALUE case such as http headers params
                if (key != null && key.startsWith(SMILING_PLACEHOLDER) && key.endsWith(SMILING_PLACEHOLDER)) {
                    key = key.replaceAll(SMILING_PLACEHOLDER_REX, "");
                    Configmap param = configmap.get(key);
                    if (param != null && param.getType() == CommonConstants.PARAM_TYPE_MAP) {
                        String jsonValue = (String) param.getValue();
                        TypeReference<Map<String, String>> typeReference = new TypeReference<>() {
                        };
                        Map<String, String> map = JsonUtil.fromJson(jsonValue, typeReference);
                        if (map != null) {
                            map.forEach((name, value) -> {
                                if (!StringUtils.isEmpty(name)) {
                                    jsonObject.addProperty(name, value);
                                }
                            });
                        }
                    }
                    iterator.remove();
                    continue;
                }
                // Replace normal VALUE value
                if (!element.isJsonPrimitive()) {
                    jsonObject.add(entry.getKey(), replaceSmilingPlaceholder(entry.getValue(), configmap));
                    continue;
                }
                // Check if there are special characters Replace
                String value = element.getAsString();
                Matcher smilingMatcher = SMILING_PLACEHOLDER_REGEX_PATTERN.matcher(value);
                if (!smilingMatcher.find()) {
                    continue;
                }
                // Replace special characters
                value = replaceSpecialCharacterIfNeeded(value, SMILING_PLACEHOLDER_REX, smilingMatcher, configmap);
                jsonObject.addProperty(entry.getKey(), value);
            }
        } else if (jsonElement.isJsonArray()) {
            JsonArray jsonArray = jsonElement.getAsJsonArray();
            int index = 0;
            while (index < jsonArray.size()) {
                JsonElement element = jsonArray.get(index);
                if (element.isJsonPrimitive()) {
                    // Check if there are special characters Replace
                    String value = element.getAsString();
                    Matcher smilingMatcher = SMILING_PLACEHOLDER_REGEX_PATTERN.matcher(value);
                    if (smilingMatcher.find()) {
                        smilingMatcher.reset();
                        String[] arrayValues = null;
                        while (smilingMatcher.find()) {
                            String group = smilingMatcher.group();
                            String replaceField = group.replaceAll(SMILING_PLACEHOLDER_REX, "");
                            Configmap param = configmap.get(replaceField);
                            if (param != null) {
                                if (param.getValue() == null) {
                                    if (group.length() == value.length()) {
                                        value = null;
                                        break;
                                    } else {
                                        value = value.replace(group, "");
                                    }
                                } else if (param.getType() == CommonConstants.PARAM_TYPE_ARRAY) {
                                    arrayValues = String.valueOf(param.getValue()).split(",");
                                } else {
                                    value = value.replace(group, (String) param.getValue());
                                }
                            } else {
                                value = null;
                                break;
                            }
                        }
                        if (arrayValues != null) {
                            jsonArray.remove(index);
                            index--;
                            for (String arrayValue : arrayValues) {
                                jsonArray.add(arrayValue);
                                index++;
                            }
                        } else {
                            jsonArray.set(index, value == null ? JsonNull.INSTANCE : new JsonPrimitive(value));
                        }
                    }
                } else {
                    jsonArray.set(index, replaceSmilingPlaceholder(element, configmap));
                }
                index++;
            }
        }
        return jsonElement;
    }