Kei*_*ons 7 c# biztalk appdomain thread-safety
我被一个设计糟糕的解决方案所困扰.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旋转另一个线程时,它都会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);
}
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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...
}
}
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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
只是为了完整.
我确实发现,如果我在"传输高级选项"对话框中将发送适配器标记为"有序传递",我就能避免出现我遇到的多线程问题.
我认为这是我的问题的另一个可能的答案,但不一定是问题.
使用应用程序域,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 fileName, 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,
null,
null);
dataFile.ParseFile();
dataFile.Save();
appDomain.Unload(threadID);
}
}
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