public ConfigHistoryInfoDetail getConfigHistoryInfoDetail()

in config/src/main/java/com/alibaba/nacos/config/server/service/HistoryService.java [130:216]
67 lines of code
10 McCabe index (conditional complexity)

    public ConfigHistoryInfoDetail getConfigHistoryInfoDetail(String dataId, String group, String namespaceId, Long nid)
            throws AccessException {
        ConfigHistoryInfo configHistoryInfo = historyConfigInfoPersistService.detailConfigHistory(nid);
        if (Objects.isNull(configHistoryInfo)) {
            return null;
        }
        
        // check if history config match the input
        checkHistoryInfoPermission(configHistoryInfo, dataId, group, namespaceId);
        
        // transform
        ConfigHistoryInfoDetail configHistoryInfoDetail = new ConfigHistoryInfoDetail();
        BeanUtils.copyProperties(configHistoryInfo, configHistoryInfoDetail);
        configHistoryInfoDetail.setOpType(configHistoryInfoDetail.getOpType().trim());
        
        //insert
        if (OperationType.INSERT.getValue().equals(configHistoryInfoDetail.getOpType())) {
            configHistoryInfoDetail.setUpdatedContent(configHistoryInfo.getContent());
            configHistoryInfoDetail.setUpdatedMd5(configHistoryInfo.getMd5());
            configHistoryInfoDetail.setUpdatedEncryptedDataKey(configHistoryInfo.getEncryptedDataKey());
            configHistoryInfoDetail.setUpdateExtInfo(configHistoryInfo.getExtInfo());
            configHistoryInfoDetail.setOriginalExtInfo(StringUtils.EMPTY);
            configHistoryInfoDetail.setOriginalContent(StringUtils.EMPTY);
            configHistoryInfoDetail.setOriginalMd5(StringUtils.EMPTY);
            configHistoryInfoDetail.setOriginalEncryptedDataKey(StringUtils.EMPTY);
        }
        
        //update
        if (OperationType.UPDATE.getValue().equals(configHistoryInfoDetail.getOpType())) {
            
            configHistoryInfoDetail.setOriginalExtInfo(configHistoryInfo.getExtInfo());
            configHistoryInfoDetail.setOriginalContent(configHistoryInfo.getContent());
            configHistoryInfoDetail.setOriginalMd5(configHistoryInfo.getMd5());
            configHistoryInfoDetail.setOriginalEncryptedDataKey(configHistoryInfo.getEncryptedDataKey());
            
            ConfigHistoryInfo nextHistoryInfo = historyConfigInfoPersistService.getNextHistoryInfo(dataId, group,
                    namespaceId, configHistoryInfoDetail.getPublishType(), configHistoryInfoDetail.getGrayName(), nid);
            
            ConfigInfo currentConfigInfo = null;
            if (Objects.isNull(nextHistoryInfo)) {
                //double check for concurrent
                currentConfigInfo = StringUtils.isEmpty(configHistoryInfoDetail.getGrayName())
                        ? configInfoPersistService.findConfigInfo(dataId, group, namespaceId)
                        : configInfoGrayPersistService.findConfigInfo4Gray(dataId, group, namespaceId,
                                configHistoryInfoDetail.getGrayName());
                nextHistoryInfo = historyConfigInfoPersistService.getNextHistoryInfo(dataId, group, namespaceId,
                        configHistoryInfoDetail.getPublishType(), configHistoryInfoDetail.getGrayName(), nid);
                
            }
            
            if (nextHistoryInfo != null) {
                configHistoryInfoDetail.setUpdateExtInfo(nextHistoryInfo.getExtInfo());
                configHistoryInfoDetail.setUpdatedContent(nextHistoryInfo.getContent());
                configHistoryInfoDetail.setUpdatedMd5(nextHistoryInfo.getMd5());
                configHistoryInfoDetail.setUpdatedEncryptedDataKey(nextHistoryInfo.getEncryptedDataKey());
            } else {
                configHistoryInfoDetail.setUpdatedContent(currentConfigInfo.getContent());
                configHistoryInfoDetail.setUpdatedMd5(currentConfigInfo.getMd5());
                configHistoryInfoDetail.setUpdatedEncryptedDataKey(currentConfigInfo.getEncryptedDataKey());
    
            }
        }
        
        //delete
        if (OperationType.DELETE.getValue().equals(configHistoryInfoDetail.getOpType())) {
            configHistoryInfoDetail.setOriginalMd5(configHistoryInfo.getMd5());
            configHistoryInfoDetail.setOriginalContent(configHistoryInfo.getContent());
            configHistoryInfoDetail.setOriginalEncryptedDataKey(configHistoryInfo.getEncryptedDataKey());
            configHistoryInfoDetail.setOriginalExtInfo(configHistoryInfo.getExtInfo());
        }
        
        // decrypt content
        if (StringUtils.isNotBlank(configHistoryInfoDetail.getOriginalContent())) {
            String originalContent = EncryptionHandler.decryptHandler(dataId,
                            configHistoryInfoDetail.getOriginalEncryptedDataKey(), configHistoryInfoDetail.getOriginalContent())
                    .getSecond();
            configHistoryInfoDetail.setOriginalContent(originalContent);
        }
        if (StringUtils.isNotBlank(configHistoryInfoDetail.getUpdatedContent())) {
            String updatedContent = EncryptionHandler.decryptHandler(dataId,
                            configHistoryInfoDetail.getUpdatedEncryptedDataKey(), configHistoryInfoDetail.getUpdatedContent())
                    .getSecond();
            configHistoryInfoDetail.setUpdatedContent(updatedContent);
        }
        
        return configHistoryInfoDetail;
    }