多线程调用指标

直接看代码：

     Java Code  
  

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List<ParamBean> paramBeanList = new LinkedList<>();
//第一个指标开始：风控报表1-主要市场指数变化
paramBeanList.add( new ParamBean(endDate, requestParams( "RISKCONTROL_PRODUCT_INDEXQUOTE", endDate),   "RISKCONTROL_PRODUCT_INDEXQUOTE"));
//第二个指标开始:风控报表1-组合回撤止损检查
paramBeanList.add( new ParamBean(endDate, requestParams( "RISKCONTROL_PRODUCT_RETRACEMENT", fundType, endDate),   "RISKCONTROL_PRODUCT_RETRACEMENT"));
//第三个指标开始:风控报表-亏损超过20%个股-->没有发布
paramBeanList.add( new ParamBean(endDate, requestParams( "RISKCONTROL_PRODUCT_LOSSTHANTWENTY", fundType, endDate),   "RISKCONTROL_PRODUCT_LOSSTHANTWENTY"));
//第四个指标开始:风控报表-股票持仓及组合净资产
paramBeanList.add( new ParamBean(endDate, requestParams( "RISKCONTROL_PRODUCT_REALPOSITION", fundType, endDate),   "RISKCONTROL_PRODUCT_REALPOSITION"));
Map< String, ParamBean> paramMap = new HashMap<>();
for (ParamBean paramBean : paramBeanList)
{
    paramMap.put(paramBean.getIndexName(), paramBean);
}

Map< String, Map< String, Object>> syncIndexCallback = syncIndexCallback(paramBeanList, paramMap);

/**
     * 开启多线程调用指标
     * @param paramBeanList
     * @param paramMap
     * @return
     */
private Map< String, Map< String, Object>> syncIndexCallback(List<ParamBean> paramBeanList, Map< String, ParamBean> paramMap)
{
    Map< String, Map< String, Object>> syncResultMap = new HashMap<>();
     int taskSize = 4;
    ExecutorService pool = Executors.newFixedThreadPool(taskSize);
    List<Future<Map< String, Map< String, Object>>>> futureList = new ArrayList<>();

    Callable<Map< String, Map< String, Object>>> call = null;
     // exe task
     for ( String indicatorName : paramMap.keySet())
    {
         final ParamBean paramBean = paramMap.get(indicatorName);
        call = new Callable<Map< String, Map< String, Object>>>()
        {

            @Override
             public  Map< String, Map< String, Object>> call() throws Exception
            {
                Map< String, Object> callIndex = callIndex(paramBean.getDate(), paramBean.getRequestParam(), paramBean.getIndexName());
                Map< String, Map< String, Object>> resultMap = new HashMap<>();
                resultMap.put(paramBean.getIndexName(), callIndex);
                 return resultMap;
            }
        };
        futureList.add(pool.submit(call));
    }

     for( int k = 0; k < paramBeanList.size(); k++)
    {
        Future<Map< String, Map< String, Object>>> future = futureList.get(k);
         try
        {
            Boolean flag = future.isDone();
             while ((null == flag) || !flag)
            {
                Thread.sleep( 1000);
                flag = future.isDone();
            }
             if (null != future && future.isDone() && future.get() != null)
            {
                syncResultMap.putAll(future.get());
            }
        }
         catch (InterruptedException e)
        {
            e.printStackTrace();
        }
         catch (ExecutionException e)
        {
            e.printStackTrace();
        }
        future = null;
    }

    pool.shutdown();
    pool = null; // help GC
    futureList = null;
     return syncResultMap;
     //***multi thread over
}

class ParamBean
{
     private String date ;
     private String requestParam;
     private String indexName;

     public String getDate()
    {
         return date;
    }
     public void setDate( String date)
    {
         this.date = date;
    }
     public String getRequestParam()
    {
         return requestParam;
    }
     public void setRequestParam( String requestParam)
    {
         this.requestParam = requestParam;
    }
     public String getIndexName()
    {
         return indexName;
    }
     public void setIndexName( String indexName)
    {
         this.indexName = indexName;
    }

     public ParamBean()
    {
    }
     public ParamBean( String date, String requestParam, String indexName)
    {
         this.date = date;
         this.requestParam = requestParam;
         this.indexName = indexName;
    }
    @Override
     public String toString()
    {
         return "ParamBean [date=" + date + ", requestParam=" + requestParam + ", indexName=" + indexName + "]";
    }

}

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