c# - WCF 可扩展性消息编码器实现

Question

如何将 ReadMessage 和 WriteMessage 映射到可以控制类库之外的消息编码的事件？

public class CustomMessageEncoder:MessageEncoder
{
    public delegate Message ReadMessage_dlg(ArraySegment<byte> buffer, BufferManager bufferManager, string contentType);
    public delegate Message ReadMessage_dlg(System.IO.Stream stream, int maxSizeOfHeaders, string contentType);
    public static event ReadMessage_dlg OnReadMessage;
    public delegate ArraySegment<byte> WriteMessage_dlg(Message message, int maxMessageSize, BufferManager bufferManager, int messageOffset);
    public delegate void WriteMessage_dlg(Message message, System.IO.Stream stream);
    public static event WriteMessage_dlg OnWriteMessage;
    .
    .
    .

    public override Message ReadMessage(ArraySegment<byte> buffer, BufferManager bufferManager, string contentType)
    {
        throw new NotImplementedException();
    }

    public override Message ReadMessage(System.IO.Stream stream, int maxSizeOfHeaders, string contentType)
    {
        throw new NotImplementedException();
    }

    public override ArraySegment<byte> WriteMessage(Message message, int maxMessageSize, BufferManager bufferManager, int messageOffset)
    {
        throw new NotImplementedException();
    }

    public override void WriteMessage(Message message, System.IO.Stream stream)
    {
        throw new NotImplementedException();
    }

}

我只想要 StrongType （没有动态/参数对象 [] ） onReadMessage 和 onWriteMessage 事件有没有办法重载可以接受两个方法的委托/事件？

Answer 1

这是通常的要求，我想。你为什么不尝试这样做的标准方法？例如，在您的库外代码寄存器中的某处：

 OnWriteMessage += new WriteMessage_dlg(myMessage, myStream);

并在每个特定的 MessageEncoder 读/写方法调用 delegate.invoke？

 public override void WriteMessage(Message wcfMessage, Stream stream) {
   OnWriteMessage.Invoke();
 }