Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.ServiceModel/System/ServiceModel/ReliableSession.cs

@@ -0,0 +1,82 @@
+//------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------
+namespace System.ServiceModel
+{
+    using System.ComponentModel;
+    using System.ServiceModel.Channels;
+
+    // The only purpose in life for these classes is so that, on standard bindings, you can say
+    //     binding.ReliableSession.Ordered
+    //     binding.ReliableSession.InactivityTimeout
+    //     binding.ReliableSession.Enabled
+    // where these properties are "bucketized" all under .ReliableSession, which makes them easier to 
+    // discover/Intellisense
+    public class ReliableSession
+    {
+        ReliableSessionBindingElement element;
+
+        public ReliableSession()
+        {
+            this.element = new ReliableSessionBindingElement();
+        }
+
+        public ReliableSession(ReliableSessionBindingElement reliableSessionBindingElement)
+        {
+            if (reliableSessionBindingElement == null)
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("reliableSessionBindingElement");
+            this.element = reliableSessionBindingElement;
+        }
+
+        [DefaultValue(ReliableSessionDefaults.Ordered)]
+        public bool Ordered
+        {
+            get { return this.element.Ordered; }
+            set { this.element.Ordered = value; }
+        }
+
+        public TimeSpan InactivityTimeout
+        {
+            get { return this.element.InactivityTimeout; }
+            set
+            {
+                if (value <= TimeSpan.Zero)
+                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("value", value,
+                                                    SR.GetString(SR.ValueMustBePositive)));
+
+                this.element.InactivityTimeout = value;
+            }
+        }
+
+        internal void CopySettings(ReliableSession copyFrom)
+        {
+            this.Ordered = copyFrom.Ordered;
+            this.InactivityTimeout = copyFrom.InactivityTimeout;
+        }
+    }
+
+    public class OptionalReliableSession : ReliableSession
+    {
+        bool enabled;
+
+        public OptionalReliableSession() : base() { }
+
+        public OptionalReliableSession(ReliableSessionBindingElement reliableSessionBindingElement) : base(reliableSessionBindingElement) { }
+
+        // We don't include DefaultValue here because this defaults to false, so omitting it would make the XAML somewhat misleading
+        public bool Enabled
+        {
+            get { return this.enabled; }
+            set
+            {
+                this.enabled = value;
+            }
+        }
+
+        internal void CopySettings(OptionalReliableSession copyFrom)
+        {
+            base.CopySettings(copyFrom);
+            this.Enabled = copyFrom.Enabled;
+        }
+    }
+}