Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.ServiceModel/System/ServiceModel/Security/TrustVersion.cs

@@ -0,0 +1,91 @@
+//------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Xml;
+
+namespace System.ServiceModel.Security
+{
+    public abstract class TrustVersion
+    {
+        readonly XmlDictionaryString trustNamespace;
+        readonly XmlDictionaryString prefix;
+
+        internal TrustVersion(XmlDictionaryString ns, XmlDictionaryString prefix)
+        {
+            this.trustNamespace = ns;
+            this.prefix = prefix;
+        }
+
+        public XmlDictionaryString Namespace
+        {
+            get
+            {
+                return this.trustNamespace;
+            }
+        }
+
+        public XmlDictionaryString Prefix
+        {
+            get
+            {
+                return this.prefix;
+            }
+        }
+
+        public static TrustVersion Default
+        {
+            get { return WSTrustFeb2005; }
+        }
+
+        public static TrustVersion WSTrustFeb2005
+        {
+            get { return WSTrustVersionFeb2005.Instance; }
+        }
+
+        public static TrustVersion WSTrust13
+        {
+            get { return WSTrustVersion13.Instance; }
+        }
+
+        class WSTrustVersionFeb2005 : TrustVersion
+        {
+            static readonly WSTrustVersionFeb2005 instance = new WSTrustVersionFeb2005();
+
+            protected WSTrustVersionFeb2005()
+                : base(XD.TrustFeb2005Dictionary.Namespace, XD.TrustFeb2005Dictionary.Prefix)
+            {
+            }
+
+            public static TrustVersion Instance
+            {
+                get
+                {
+                    return instance;
+                }
+            }
+        }
+
+        class WSTrustVersion13 : TrustVersion
+        {
+            static readonly WSTrustVersion13 instance = new WSTrustVersion13();
+
+            protected WSTrustVersion13()
+                : base(DXD.TrustDec2005Dictionary.Namespace, DXD.TrustDec2005Dictionary.Prefix)
+            {
+            }
+
+            public static TrustVersion Instance
+            {
+                get
+                {
+                    return instance;
+                }
+            }
+        }
+
+    }
+}