下载功能 功能设计 类图

DownloadWorkItemAbstract

+ResourceInfo : DownloadResourceAbstract+ResourceKey : string+ResourceDownloadStatus : DownloadStatus+IsDownloading : bool

+DownloadStart()+DownloadStop()

调用

HttpDownloadWorkItem

-m_httpClient : HttpClient

+DoStart() : void+DoStop() : void

实现

Rom

+DatabaseID : String +ResourceID : String +LocalFileName : String +ServerFileName : String +StorageDirectory : String +MD5 : String +FileSize : long+DownloadPriority : int +DownloadImmediatelyPriority : int

DownloadResourceAbstract

+DatabaseID : String +ResourceID : String +LocalFileName : String +ServerFileName : String +StorageDirectory : String +MD5 : String +FileSize : long+DownloadPriority : int +DownloadImmediatelyPriority : int

+ DownloadUrl() : void+ MD5Check() : void

Tool

DownloadControlerAbstract<T> where T : DownloadWorkItemAbstract

1:n 调用

1:1调用

RomDownloadDealer

-_key : string = GUID-MAX_COUNT : int = 5-m_KillSwitchStorage : KillSwitchStorage-m_controler : HttpDownloadControler

ToolDownloadDealer

HttpDownloadControler

IDownloadTask

1:1 调用