???????????????????

?????????????????????????????????????????????????????????????????????????????e???????????????????????????????????????????????д??????????????????￡?????????????????????????????д??Ч????????????????????????????????????????????????????????????????κι????????????????????????м????????е????????????????????????????????????????????????????????????????????????

????????????

??????????????У?????????????????????????????????????????Ч??????????????????Java??д??????????????????????????????????????????????Щ????????????????????????????????????????????????????????????????????????????????????????????

??????????2?????????????????????????????ɡ????????????????鼮?????????????????????Martin Fowler??????????????д??????????Joshua Kerievsky???????????????????????????μ???????????Щ????????е????????????????????????Щ?????????Щ??????????

??????????????????????????鹹????????????????????????????????????????????????????????????HR???(ticket)????IT??????????????????????HR?????IT????????????????????????????????????????????????????????????????????????????????????

????????????????????????????????????????????????????????????

?????????????????????????????????????????????????????????????????????????????????????????ο???????????????о?????????????????????????п??ó?????????δ???????????(???????????????)???????????????????????????????????????????????????????????????????λ??????????д????????????????????????л??????????????????????????????????п??????????????????????

????class ResourceBreakdownService {

????public Map search (Session context) throws SearchException{

????//omitted twenty or so lines of code to pull search criteria out of context

????and verify them?? such as the below:

????if(resourceIds==null || resourceIds.size ()==0){

????throw new SearchException(“Resource list is not provided”);

????}

????if(resourceId!=null || resourceIds.size()>0){

????resourceObjs=resourceDAO.getResourceByIds(resourceIds);

????}

????//get workload for all requests

????Map requestBreakDown=getResourceRequestsLoadBreakdown (resourceObjs??startDate??

????finishDate);

????return requestBreakDown;

????}

????}

??????????????????δ???????ζ????????????????????????search???????????????????????????????Apache Commons????е?CollectionUtils.isEmpty()???????????????????????????????÷????????Map???????????Щ???

?????????????ζ????????????????????λ????????????????2??????????????????????????????????????????

????// get workload for all tickets

????Map ticketBreakdown =getResourceRequestsLoadBreakdown(resourceObjs??startDate??

????finishDate??ticketSeverity);

????Map result=new HashMap();

????for(Iterator i = resourceObjs.iterator(); i.hasNext();) {

????Resource resource=(Resource)i.next();

????Map requestBreakdown2=(Map)requestBreakdown.get(resource);

????List ticketBreakdown2=(List)ticketBreakdown.get(resource);

????Map resourceWorkloadBreakdown=combineRequestAndTicket(requestBreakdown2??

????ticketBreakdown2);

????result.put(resource??resourceWorkloadBreakdown)

????}

????return result;

?????????????????????????????????????κδ????????????????????δ????л???ζ???????????Map??????????Map????????????????????????????????????????????????澿????????????????????д???Щ?????????Map?е???????????????????????????????????

?????????????У?{} ???????Map??=> ???????????[] ????????????

????{resource with id 30000=> [

????SummaryOfActualWorkloadForRequestType??