optimisation for parsing same regular expression from multiple client

using fxCop for code beauty 
fix bug on concurrent connect 

1 files changed, 33 insertions, 14 deletions

diff --git a/Ivy/IvyBindingAttribute.cs b/Ivy/IvyBindingAttribute.cs
index 90c44ce..1380f0f 100644
--- a/Ivy/IvyBindingAttribute.cs
+++ b/Ivy/IvyBindingAttribute.cs
@@ -1,31 +1,50 @@
-using System;

-using System.Collections.Generic;

-using System.Text;

+

 

 namespace IvyBus

 {

-    [AttributeUsage(AttributeTargets.Method,AllowMultiple = true)]

+    using System;

+    using System.Collections.Generic;

+    using System.Text;

+    using System.Collections.ObjectModel;

+    using System.Globalization;

+

+    [AttributeUsage(AttributeTargets.Method, AllowMultiple = true)]

     public sealed class IvyBindingAttribute : Attribute

     {

         private string expression;

         private string[] args;

 

-        // translate part of expression to object property

-        public string GetExpression(object obj)

+        public string Expression

         {

-            if (obj == null) return string.Format(expression);

-            object[] values = new object[args.Length];

-            for (int i = 0; i < args.Length; i++)

-            {

-                values[i] = obj.GetType().GetProperty(args[i]).GetValue(obj,null);

-            }

-            return string.Format(expression,values);

+            get { return this.expression; }

         }

-

+        

+        public ReadOnlyCollection<string> Args

+        {

+            get { return new ReadOnlyCollection<string>(args); }

+        }

+        

         public IvyBindingAttribute(string expression, params string[] args)

         {

             this.expression = expression;

             this.args = args;

         }

+

+        // translate part of expression to object property

+        public string GetFormattedExpression(object target)

+        {

+            if (target == null)

+            {

+                return string.Format(this.expression);

+            }

+

+            object[] values = new object[this.args.Length];

+            for (int i = 0; i < values.Length; i++)

+            {

+                values[i] = target.GetType().GetProperty(args[i]).GetValue(target, null);

+            }

+

+            return string.Format(this.expression, values);

+        }

     }

 }