


Use XML to convert machine code into information that people can understand Case sharing
程序中通常会有一些错误代码或标识,为了程序中方便这些东西通常不会使用汉字,经常在程序中用的是一些FileError或数字。还有就是在编码中经常使用的枚举标识对象的状态。而通常这些信息会直接的或间接的现实给用户,可用户需要到的是容易理解的汉字描述。以前要么将这
程序中通常会有一些错误代码或标识,为了程序中方便这些东西通常不会使用汉字,经常在程序中用的是一些FileError或数字。还有就是在编码中经常使用的枚举标识对象的状态。而通常这些信息会直接的或间接的现实给用户,可用户需要到的是容易理解的汉字描述。以前要么将这些标识和枚举的转换规则硬编码到程序中,要么就直接提示给用户。前者没有很好的扩展性,而后者则让用户一头雾水。现可以用流行的XML(配置文件)保存提示信息,然后用一个对象将机器中的内码转换为人们容易理解的信息。
转换对象如下:
/**//// ///翻译类,将内部码翻译成容易理解的中文 /// /// ///根据配置文件中的信息,将系统内部码(错误码、成功码)翻译成中文(或人容易理解的语言)。 /// publicstaticclassTranslation ...{ privatestaticSystem.IO.FileSystemWatcherwatcher; privatestaticXmlDocumentcontent; privatestaticstringconfigFile; privatestaticobjectlocker=newobject(); /**//// ///加载配置文件 /// /// publicstaticvoidConfigure(stringconfigFile) ...{ LoadFile(configFile); if(watcher!=null) ...{ watcher.Dispose(); } watcher=newFileSystemWatcher(Path.GetDirectoryName(configFile),Path.GetFileName(configFile)); watcher.Changed =newFileSystemEventHandler(watcher_Changed); } /**//// ///加载默认配置文件 /// publicstaticvoidConfigure() ...{ if(System.Web.HttpContext.Current!=null) ...{ Configure(System.Web.HttpContext.Current.Server.MapPath("~/translation.config")); } else ...{ Configure(System.AppDomain.CurrentDomain.SetupInformation.ApplicationBase "\" "translation.config"); } } /**//// ///加载文件内容 /// /// privatestaticvoidLoadFile(stringconfigFile) ...{ lock(locker) ...{ XmlDocumentdoc=newXmlDocument(); doc.Load(configFile); content=doc; Translation.configFile=configFile; } } /**//// ///当文件变更时,从新加载文件 /// /// /// privatestaticvoidwatcher_Changed(objectsender,FileSystemEventArgse) ...{ LoadFile(configFile); } /**//// ///获取Enum的解释,如果Enum有Flag标记,则使用逗号分隔各个解释 /// /// /// publicstaticstringGetEnumDescription(EnumenumValue) ...{ returnGetEnumDescription(enumValue,","); } /**//// ///获取Enum的解释,如果Enum有Flag标记,则使用sparator分隔各个解释 /// /// /// /// publicstaticstringGetEnumDescription(EnumenumValue,stringsparator) ...{ Typetype=enumValue.GetType(); //检查类型是否有Flags特性 object[]attrs=type.GetCustomAttributes(typeof(FlagsAttribute),false); if(attrs.Length>0) ...{ StringBuilderbuilder=newStringBuilder(); Arrayarr=Enum.GetValues(type); foreach(Enumenuinarr)//循环获取每一个值的解释 ...{ if((Convert.ToUInt64(enumValue)&Convert.ToUInt64(enu))==Convert.ToUInt64(enu))//判断是否有这个值 ...{ builder.Append(GetEnumDes(type,enu.ToString())); builder.Append(sparator); } } if(builder.Length!=0)//拿掉最后的分隔符 builder.Remove(builder.Length-sparator.Length,sparator.Length); returnbuilder.ToString(); } else ...{ returnGetEnumDes(type,enumValue.ToString()); } } /**//// ///获取某一Enum类型值的解释 /// /// /// /// privatestaticstringGetEnumDes(Typetype,stringvalue) ...{ stringxquery="/translation/enum/" type.FullName "/" value; XmlNodenode=content.SelectSingleNode(xquery); if(node!=null) returnnode.InnerText; else returnvalue; } /**//// ///翻译指定值 /// /// /// publicstaticstringGetValueDescription(objectobj) ...{ returnGetValueDescription("default",obj); } /**//// ///在指定组中翻译指定值 /// /// /// /// publicstaticstringGetValueDescription(stringgroup,objectobj) ...{ if(obj==null) return"null"; stringxquery="/translation/description[@group='" group "']/add[@key='" obj.ToString() "']/@value"; XmlNodenode=content.SelectSingleNode(xquery); if(node==null) returnobj.ToString(); else returnnode.Value; } } #p#
在这个对象使用前需要使用Configure方法来加载xml配置文件,默认的配置文件名称为translation.config。转换对象使用单例模式,使用了一个FileSystemWatcher对象来监视XML文件,如果XML有变化,则从新加载。查询XML使用了XPath表达式。
然后即可使用GetEnumDescription和GetValueDescription方法来翻译枚举和标识了。如果没有找到可以翻译的值,则会返回对象的ToString方法的返回值。
示例XML配置:
<?xmlversion="1.0"encoding="utf-8"?> <translation> <enum> <!--此出要用枚举的全名--> <Library.UserType> <Unknow>未知</Unknow> <AfterPayUser>后付费用户</AfterPayUser> <BeforePayUser>预付费用户</BeforePayUser> </Library.UserType> </enum> <descriptiongroup="default"> <addkey="FileErrorl"value="文件已损坏"/> </description> <descriptiongroup="skin"> <addkey="Default"value="默认皮肤"/> </description> <descriptiongroup="topic"> <addkey="space"value="<spanclass='red'>您剩余的空间不足,请您删除部分文件。</span><br/>"/> <addkey="yue"value="<spanclass='red'>您的余额不足,请尽快充值。</span><br/>"/> </description> </translation>
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