Moved programs into the Programs folder

git-svn-id: http://libopenmetaverse.googlecode.com/svn/trunk@1958 52acb1d6-8a22-11de-b505-999d5b087335

Programs/SLProxy/XmlRpcCS/XmlRpcExposedAttribute.cs

@@ -0,0 +1,60 @@
+namespace Nwc.XmlRpc
+{
+    using System;
+    using System.Reflection;
+
+    /// <summary>
+    /// Simple tagging attribute to indicate participation is XML-RPC exposure.
+    /// </summary>
+    /// <remarks>
+    /// If present at the class level it indicates that this class does explicitly 
+    /// expose methods. If present at the method level it denotes that the method
+    /// is exposed.
+    /// </remarks>
+    [AttributeUsage(
+          AttributeTargets.Class | AttributeTargets.Method,
+          AllowMultiple = false,
+          Inherited = true
+      )]
+    public class XmlRpcExposedAttribute : Attribute
+    {
+        /// <summary>Check if <paramref>obj</paramref> is an object utilizing the XML-RPC exposed Attribute.</summary>
+        /// <param name="obj"><c>Object</c> of a class or method to check for attribute.</param>
+        /// <returns><c>Boolean</c> true if attribute present.</returns>
+        public static Boolean ExposedObject(Object obj)
+        {
+            return IsExposed(obj.GetType());
+        }
+
+        /// <summary>Check if <paramref>obj</paramref>.<paramref>methodName</paramref> is an XML-RPC exposed method.</summary>
+        /// <remarks>A method is considered to be exposed if it exists and, either, the object does not use the XmlRpcExposed attribute,
+        /// or the object does use the XmlRpcExposed attribute and the method has the XmlRpcExposed attribute as well.</remarks>
+        /// <returns><c>Boolean</c> true if the  method is exposed.</returns>
+        public static Boolean ExposedMethod(Object obj, String methodName)
+        {
+            Type type = obj.GetType();
+            MethodInfo method = type.GetMethod(methodName);
+
+            if (method == null)
+                throw new MissingMethodException("Method " + methodName + " not found.");
+
+            if (!IsExposed(type))
+                return true;
+
+            return IsExposed(method);
+        }
+
+        /// <summary>Check if <paramref>mi</paramref> is XML-RPC exposed.</summary>
+        /// <param name="mi"><c>MemberInfo</c> of a class or method to check for attribute.</param>
+        /// <returns><c>Boolean</c> true if attribute present.</returns>
+        public static Boolean IsExposed(MemberInfo mi)
+        {
+            foreach (Attribute attr in mi.GetCustomAttributes(true))
+            {
+                if (attr is XmlRpcExposedAttribute)
+                    return true;
+            }
+            return false;
+        }
+    }
+}