private void writeFile()

in src/main/java/org/apache/rocketmq/dashboard/task/DashboardCollectTask.java [220:245]

• 25 lines of code
• 8 McCabe index (conditional complexity)

    private void writeFile(LoadingCache<String, List<String>> map, Map<String, List<String>> fileMap,
        File file) throws IOException {
        Map<String, List<String>> newMap = map.asMap();
        Map<String, List<String>> resultMap = Maps.newHashMap();
        if (fileMap.size() == 0) {
            resultMap = newMap;
        }
        else {
            for (Map.Entry<String, List<String>> entry : fileMap.entrySet()) {
                List<String> oldList = entry.getValue();
                List<String> newList = newMap.get(entry.getKey());
                resultMap.put(entry.getKey(), appendData(newList, oldList));
                if (newList == null || newList.size() == 0) {
                    map.put(entry.getKey(), appendData(newList, oldList));
                }
            }

            for (Map.Entry<String, List<String>> entry : newMap.entrySet()) {
                List<String> oldList = fileMap.get(entry.getKey());
                if (oldList == null || oldList.size() == 0) {
                    resultMap.put(entry.getKey(), entry.getValue());
                }
            }
        }
        Files.write(JsonUtil.obj2String(resultMap).getBytes(), file);
    }