Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.ServiceModel/System/ServiceModel/Configuration/ExtensionElement.cs

@@ -0,0 +1,90 @@
+//------------------------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------------------------
+
+namespace System.ServiceModel.Configuration
+{
+    using System;
+    using System.Configuration;
+
+    public partial class ExtensionElement : ConfigurationElement
+    {
+        string typeName;
+
+        public ExtensionElement()
+        {
+        }
+
+        public ExtensionElement(string name)
+            : this()
+        {
+            if (String.IsNullOrEmpty(name))
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("name");
+            }
+
+            this.Name = name;
+        }
+
+        public ExtensionElement(string name, string type)
+            : this(name)
+        {
+            if (String.IsNullOrEmpty(type))
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("type");
+            }
+
+            this.Type = type;
+        }
+
+        [ConfigurationProperty(ConfigurationStrings.Name, Options = ConfigurationPropertyOptions.IsRequired | ConfigurationPropertyOptions.IsKey)]
+        [StringValidator(MinLength = 1)]
+        public string Name
+        {
+            get { return (string)base[ConfigurationStrings.Name]; }
+            set
+            {
+                if (String.IsNullOrEmpty(value))
+                {
+                    value = String.Empty;
+                }
+                base[ConfigurationStrings.Name] = value;
+            }
+        }
+
+        [ConfigurationProperty(ConfigurationStrings.Type, Options = ConfigurationPropertyOptions.IsRequired)]
+        [StringValidator(MinLength = 1)]
+        public string Type
+        {
+            get { return (string)base[ConfigurationStrings.Type]; }
+            set
+            {
+                if (String.IsNullOrEmpty(value))
+                {
+                    value = string.Empty;
+                }
+
+                base[ConfigurationStrings.Type] = value;
+            }
+        }
+
+        internal string TypeName
+        {
+            get
+            {
+                if (string.IsNullOrEmpty(this.typeName))
+                {
+                    this.typeName = GetTypeName(this.Type);
+                }
+
+                return this.typeName;
+            }
+        }
+
+        internal static string GetTypeName(string fullyQualifiedName)
+        {
+            string typeName = fullyQualifiedName.Split(',')[0];
+            return typeName.Trim();
+        }
+    }
+}