Possibility to specify a method parameter name as it will be referred to by JsonRpc

rommar · rommar · commit e58f5d6eb8e6 · 2016-01-31T01:58:34.000+03:00
diff --git a/Json-Rpc/Attributes.cs b/Json-Rpc/Attributes.cs
@@ -24,4 +24,27 @@ public string JsonMethodName
             get { return jsonMethodName; }
         }
     }
+
+    /// <summary>
+    /// Used to assign JsonRpc parameter name to method argument.
+    /// </summary>
+    [AttributeUsage(AttributeTargets.Parameter, Inherited = false, AllowMultiple = false)]
+    public sealed class JsonRpcParamAttribute : Attribute
+    {
+        readonly string jsonParamName;
+
+        /// <summary>
+        /// Used to assign JsonRpc parameter name to method argument.
+        /// </summary>
+        /// <param name="jsonParamName">Lets you specify the parameter name as it will be referred to by JsonRpc.</param>
+        public JsonRpcParamAttribute(string jsonParamName = "")
+        {
+            this.jsonParamName = jsonParamName;
+        }
+
+        public string JsonParamName
+        {
+            get { return jsonParamName; }
+        }
+    }
 }
diff --git a/Json-Rpc/JsonRpcService.cs b/Json-Rpc/JsonRpcService.cs
@@ -37,14 +37,25 @@ private void buildService(string sessionID)
                 var paramzs = meth.GetParameters();
 
                 List<Type> parameterTypeArray = new List<Type>();                
-                 for (int i = 0; i < paramzs.Length; i++)
+                for (int i = 0; i < paramzs.Length; i++)
                 {
+                    string paramName;
+                    var paramAttrs = paramzs[i].GetCustomAttributes(typeof(JsonRpcParamAttribute), false);
+                    if (paramAttrs.Length > 0)
+                    {
+                        paramName = ((JsonRpcParamAttribute)paramAttrs[0]).JsonParamName;
+                    }
+                    else
+                    {
+                        paramName = paramzs[i].Name;
+                    }
+
                     // reflection attribute information for optional parameters
                     //http://stackoverflow.com/questions/2421994/invoking-methods-with-optional-parameters-through-reflection
-                    paras.Add(paramzs[i].Name, paramzs[i].ParameterType);
+                    paras.Add(paramName, paramzs[i].ParameterType);
 
                     if (paramzs[i].IsOptional) // if the parameter is an optional, add the default value to our default values dictionary.
-                        defaultValues.Add(paramzs[i].Name, paramzs[i].DefaultValue);
+                        defaultValues.Add(paramName, paramzs[i].DefaultValue);
                 }
 
                 var resType = meth.ReturnType;
