一些优秀的用法

1  CacheHelper :   将任务用sublist分组，然后用java.util.concurrent.CountDownLatch来一起处理；

2  Module   System.getProperties().putAll(prop);

3 CacheHelper:    final AtomicBoolean isSucc = new AtomicBoolean(true);  在其他线程设置结果，不用普通的boolean

4 Executors.newScheduledThreadPool(1);;

 

 

 

缺点：

1  . DataStoreCleanFromStorageScheduler

 static final long INTERVAL = 90 * 24 * 60 * 60 * 1000;

 

2   CollectionUtils.splitList2MapObject(List<T>, Class<T>, String)

    m = c.getDeclaredMethod(name, new Class[0]);

 

3  CacheDao.batchDeleteNodeMessageById(long, long)

Delete from cache_sync_node t where t.id<=maxId and t.id<=minId

 

4 ExternalFileServiceImpl

 public void removeFileStats(int durationHours, int maxCount)
   throws ExternalException {
  try {
   fileStatsManager.removeFileStats(maxCount, durationHours);

 

6 QDTaskDispatcher

 public final String ASYNTASK = "AsynTask";

 

5 MQUtil

 private static String QUEUE_MIDDLE = "_q_";

 

6 TaskWorkerFactoryImpl

 

     TaskWorkerDefinition workerDef = TaskWorkerConfig.getInstance().getTaskWorkerDef(workerId);
     if(workerDef == null){
      throw new Exception("need  define " + workerId + " in taskWorkerDefinition.xml");
     }
     String className = TaskWorkerConfig.getInstance().getTaskWorkerDef(workerId).getClassName();

 

7 MetaDataStoreAction

 

    eventList.clear();最好用finally

 

8 DMSMQC

  assert eventList != null;

 

 

9   DMISNMPTimer

   errorMessage = ("GSB");

 

10

com.webex.dms2.dmi.util.Compress

  ByteArrayOutputStream baout = new ByteArrayOutputStream();
  GZIPOutputStream gzout = new GZIPOutputStream(baout);

 

未用buffered类装饰

11

异常无任何处理

.DistCacheManagerImpl.internalRemove(String)

 

  } catch (InterruptedException e) {
  } catch (ExecutionException e) {
  }

 12

MSInitServiceImpl

  smSubscribeKey = ModuleConfigFactory.getInstance().getMSserviceCofig().getSmSubscribeKey();
  usSubscribeKey = ModuleConfigFactory.getInstance().getMSserviceCofig().getUsSubscribeKey();

 

_initMS

initMS区别尼，命名没有区分

 

13

.EventTaskConsumer

catch (Throwable e) {
         logger.info

 

 

14

TraceDebugListenerImpl

new ArrayList<TraceDebugMessage>(COUNT_INSERT_DB + 1);

 removeEldestEntry

 

15

  String paramName="daysOfSavePeriod";
  String value="#no_match#";
  TraceDebugConfig traceDebugConfig = new TraceDebugConfig();

   try {
   BeanUtils.copyProperty(traceDebugConfig,
     paramName, value);
  } catch (IllegalAccessException e) {
    e.printStackTrace();
  } catch (InvocationTargetException e) {
    e.printStackTrace();
  }
  
  System.out.println(traceDebugConfig.getDaysOfSavePeriod());

 

:asz1dmi002:root > grep 'traceDebug.daysOfSavePeriod'  *
module.xml:             <param name="daysOfSavePeriod" value="${traceDebug.daysOfSavePeriod}" />

 

        value = replacePlaceHold(value);
        if (isDynamic) {
         ((DynamicModuleConfig) moduleConfig)
           .putParamValue(paramName, value);
        } else {
         BeanUtils.copyProperty(moduleConfig,
           paramName, value);

 

 

16

TaskCleanTimer 可以放到quartz框架里面统一管理

 

17

TaskCleanTimer

 private volatile boolean isInit = false;
 
 public void execut() {
  if (!isInit) {
   taskCleanExecutor.scheduleAtFixedRate(new TaskCleanTask(), 0, 1, TimeUnit.DAYS);
   isInit = true;
  }
 }