cloudsim源代码学习之datacenterbroker

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1、packageorg.cloudbus.cloudsim;importjava.util.ArrayList;//Resizable-arrayimplementationoftheListinterfaceimportjava.util.HashMap;//散列表要解决的一个问题就是散列值的冲突问题，通常是两种方法：链表法和开放地址法。链表法就是将相同hash值的对象组织成一个链表放在hash值对应的槽位（来源：http://www.yuloo.com/news/1012/527961.html）importjava.util.LinkedList;//Theclas

2、simplementstheDequeinterface,providingfirst-in-first-outqueueoperationsforadd,poll,alongwithotherstackanddequeoperationsimportjava.util.List;//Anorderedcollection(alsoknownasasequence)importjava.util.Map;//Anobjectthatmapskeystovaluesimportorg.cloudbus.cloudsim.core.CloudSim;//Thisclasse

3、xtendstheCloudSimCoretoenablenetworksimulationinCloudSimimportorg.cloudbus.cloudsim.core.CloudSimTags;//ContainsvariousstaticcommandtagsthatindicateatypeofactionthatneedstobeundertakenbyCloudSimentitieswhentheyreceiveorsendeventsimportorg.cloudbus.cloudsim.core.SimEntity;//Thisclassrepre

4、sentsasimulationentityimportorg.cloudbus.cloudsim.core.SimEvent;//Thisclassrepresentsasimulationeventwhichispassedbetweentheentitiesinthesimulationimportorg.cloudbus.cloudsim.lists.CloudletList;//CloudletListisacollectionofoperationsonlistsofCloudletsimportorg.cloudbus.cloudsim.lists.VmL

5、ist;//VmListisacollectionofoperationsonlistsofVMs/**DatacentreBroker类代表一经纪人行使用户角色，隐藏了虚拟机管理，如虚拟机创建，用户任务提交和虚拟机销毁*DatacentreBrokerrepresentsabroker*actingonbehalfofauser.IthidesVMmanagement,*asvmcreation,sumbissionofcloudletstothisVMs*anddestructionofVMs.**@authorRodrigoN.Calheiros*@authorA

6、ntonBeloglazov*@sinceCloudSimToolkit1.0*/publicclassDatacenterBrokerextendsSimEntity{//TODO:removeunnecessaryvariables移除不必要的变量/**Thevmlist.虚拟机列表*/privateListvmList;/**Thevmscreatedlist.虚拟机创建列表*/privateListvmsCreatedList;/**Thecloudletlist.云任务列表*/privateList

7、dsCloudlet>cloudletList;/**Thecloudletsubmittedlist.云任务提交列表*/privateListcloudletSubmittedList;/**Thecloudletreceivedlist.云任务接收列表*/privateListcloudletReceivedList;/**Thecloudletssubmitted.提交的云任务*/privateintcloudletsSubmitted;/**Thevmsreq