ContextBoundObject 上下文对象的用法

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Runtime.Remoting.Contexts; using System.Runtime.Remoting.Activation; using System.Runtime.Remoting.Messaging; using System.Reflection; namespace ConsoleApplication1 { public class UserTrack : ContextAttribute { public UserTrack() : base("UserCreate") { Console.WriteLine("UserContextAttribute Create..."); } public override void GetPropertiesForNewContext(IConstructionCallMessage ctorMsg) { ctorMsg.ContextProperties.Add(new Processer()); //base.GetPropertiesForNewContext(ctorMsg); } } [UserTrack()] public class User : ContextBoundObject { private string _userName = ""; private string _nick = ""; public User() { Console.WriteLine("UserObject Create..."); } public string UserName { get { return this._userName; } set { this._userName = value; } } public string Nick { get { return this._nick; } set { this._nick = value; } } public string Password = ""; } public class Processer : IContextProperty, IContributeObjectSink { #region IContextProperty 成员 public void Freeze(Context newContext) { } public bool IsNewContextOK(Context newCtx) { return true; } public string Name { get { return "mmcgzs.tracker"; } } #endregion #region IContributeObjectSink 成员 public IMessageSink GetObjectSink(MarshalByRefObject obj, System.Runtime.Remoting.Messaging.IMessageSink nextSink) { return new TraceSink(obj, nextSink); } #endregion } public class TraceSink : IMessageSink { private User _sender; private IMessageSink _nextSink; public TraceSink(MarshalByRefObject sender, IMessageSink nextSink) { this._nextSink = nextSink; this._sender = sender as User; } #region IMessageSink 成员 public IMessageCtrl AsyncProcessMessage(IMessage msg, IMessageSink replySink) { return null; } public IMessageSink NextSink { get { return this._nextSink; } } public IMessage SyncProcessMessage(IMessage msg) { IMethodCallMessage call = msg as IMethodCallMessage; PropertyAction property = GetCallProperty(call); if (property != null) { Console.WriteLine(property.Action+" Property " + property.Name + " value " + property.Value); } return this._nextSink.SyncProcessMessage(call); } private PropertyAction GetCallProperty(IMethodCallMessage call) { PropertyAction p = new PropertyAction(); if (call == null) return null; // 得到调用的方法的信息 MethodBase methodInfo = call.MethodBase; if (methodInfo.Name.StartsWith("set_")) { p.Name = methodInfo.Name.Substring(4); p.Value = call.InArgs[0]; p.Action = methodInfo.Name.Substring(0, 3); } else if (methodInfo.Name.StartsWith("get_")) { p.Name = methodInfo.Name.Substring(4); p.Value = methodInfo.Invoke(this._sender, null); p.Action = methodInfo.Name.Substring(0, 3); } else if (methodInfo.Name == "FieldSetter") { p.Name = (string)call.InArgs[1]; p.Value = call.InArgs[2]; p.Action = methodInfo.Name; } else if (methodInfo.Name == "FieldGetter") { p.Name = (string)call.InArgs[1]; p.Value = this._sender.GetType().GetField(p.Name).GetValue(this._sender); p.Action = methodInfo.Name; } else { p = null; } return p; } #endregion } public class PropertyAction { public string Name = ""; public object Value = null; public string Action = ""; } class Program { static void Main(string[] args) { User user = new User(); user.UserName = "mmcgzs"; user.Nick = "毛毛虫"; user.Password = "888888"; string a = user.UserName; a = user.Password; Console.Read(); } } }