c# – 如何使用AppDomain限制静态类的范围以便线程安全使用？

我被一个架构不佳的解决方案所困扰.它不是线程安全的！

我在解决方案中有几个共享类和成员,在开发期间一切都很酷……
BizTalk已经沉没了我的战舰.

我们使用自定义BizTalk适配器来调用我的程序集.适配器正在调用我的代码并并行运行,所以我假设它在同一个AppDomain下使用多个线程.

我想要做的是让我的代码在自己的AppDomain下运行,这样我所拥有的共享问题就不会相互混淆.

我有一个非常简单的类,BizTalk适配器实例化然后运行Process()方法.

我想在我的Process()方法中创建一个新的AppDomain,所以每次BizTalk都旋转另一个线程时,它将拥有自己的静态类和方法版本.

BizTalkAdapter代码：

// this is inside the BizTalkAdapter and it is calling the Loader class //
  private void SendMessage(IBaseMessage message,TransactionalTransmitProperties properties)
    {
 
        Stream strm = message.BodyPart.GetOriginalDataStream();
        string connectionString = properties.ConnectionString;
        string msgFileName = message.Context.Read("ReceivedFileName","http://schemas.microsoft.com/BizTalk/2003/file-properties") as string;
 
 
        Loader loader = new Loader(strm,msgFileName,connectionString);
        loader.Process();
 
        EventLog.WriteEntry("Loader","Successfully processed: " + msgFileName);
 
    }

这是BizTalk调用类：

public class Loader
{
 
    private string connectionString;
    private string fileName;
    private Stream stream;
    private DataFile dataFile;
 
    public Loader(Stream stream,string fileName,string connectionString)
    {
        this.connectionString = connectionString;
        this.fileName = fileName;
        this.stream = stream;
    }  
 
    public void Process()
    {
 
        //*****  Create AppDomain HERE *****
        // run following code entirely under that domain
        dataFile = new DataFile(aredStream,fileName,connectionString);
        dataFile.ParseFile();
        dataFile.Save();
        // get rid of the AppDomain here...
 
    }
 
}

仅供参考：Loader类位于dataFile类的单独DLL中.

任何帮助,将不胜感激.我将继续努力使代码线程安全,但我觉得这可能是“简单”的答案.

如果有人有任何其他想法,请投入.

谢谢,
基思

Just for completeness.

I did find that if I marked the send adapter as “Ordered Delivery” in
the “Transport Advanced Options” dialog I was able to avoid the
multi-thread issues I was having.

I figure this is another possible answer to my problem,but not
necessarily to the question.

解决方法

使用应用域您可以执行以下操作：

public class Loader
{
 
    private string connectionString;
    private string fileName;
    private Stream stream;
    private DataFile dataFile;
 
    public Loader(Stream stream,string connectionString)
    {
        this.connectionString = connectionString;
        this.fileName = fileName;
        this.stream = stream;
    }  
 
    public void Process()
    {
        //*****  Create AppDomain HERE *****
        string threadID = Thread.CurrentThread.ManagedThreadId.ToString();
        AppDomain appDomain = AppDomain.CreateDomain(threadID);
 
        DataFile dataFile = 
            (DataFile) appDomain.CreateInstanceAndUnwrap(
                        "<DataFile AssemblyName>","DataFile",true,BindingFlags.Default,null,new object[] 
                        { 
                            aredstream,filename,connectionString 
                        },null);
        dataFile.ParseFile();
        dataFile.Save();
 
        appDomain.Unload(threadID);       
    }
}

c# – 如何使用AppDomain限制静态类的范围以便线程安全使用？

解决方法

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