Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

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

@@ -0,0 +1,88 @@
+//------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------
+
+namespace System.ServiceModel
+{
+    using System.Runtime;
+    using System.ServiceModel.Channels;
+    using System.ServiceModel.Description;
+
+    sealed class ProgrammaticEndpointTrait<TChannel> : EndpointTrait<TChannel>
+        where TChannel : class
+    {
+        EndpointAddress remoteAddress;
+        Binding binding;
+        InstanceContext callbackInstance;
+
+        public ProgrammaticEndpointTrait(Binding binding,
+            EndpointAddress remoteAddress,
+            InstanceContext callbackInstance)
+            : base()
+        {
+            this.binding = binding;
+            this.remoteAddress = remoteAddress;
+            this.callbackInstance = callbackInstance;
+        }
+
+        public override bool Equals(object obj)
+        {
+            ProgrammaticEndpointTrait<TChannel> trait1 = obj as ProgrammaticEndpointTrait<TChannel>;
+            if (trait1 == null) return false;
+
+            if (!object.ReferenceEquals(this.callbackInstance, trait1.callbackInstance))
+                return false;
+
+            // EndpointAddress.Equals is used.
+            if (this.remoteAddress != trait1.remoteAddress)
+                return false;
+
+            if (!object.ReferenceEquals(this.binding, trait1.binding))
+                return false;
+
+            return true;
+        }
+
+        public override int GetHashCode()
+        {
+            int hashCode = 0;
+            if (this.callbackInstance != null)
+            {
+                hashCode ^= this.callbackInstance.GetHashCode();
+            }
+
+            Fx.Assert(this.remoteAddress != null, "remoteAddress should not be null.");
+            hashCode ^= this.remoteAddress.GetHashCode();
+
+
+            Fx.Assert(this.binding != null, "binding should not be null.");
+            hashCode ^= this.binding.GetHashCode();
+
+            return hashCode;
+        }
+
+        public override ChannelFactory<TChannel> CreateChannelFactory()
+        {
+            if (this.callbackInstance != null)
+                return CreateDuplexFactory();
+
+            return CreateSimplexFactory();
+        }
+
+        DuplexChannelFactory<TChannel> CreateDuplexFactory()
+        {
+            Fx.Assert(this.remoteAddress != null, "remoteAddress should not be null.");
+            Fx.Assert(this.binding != null, "binding should not be null.");
+
+            return new DuplexChannelFactory<TChannel>(this.callbackInstance, this.binding, this.remoteAddress);
+        }
+
+        ChannelFactory<TChannel> CreateSimplexFactory()
+        {
+            Fx.Assert(this.remoteAddress != null, "remoteAddress should not be null.");
+            Fx.Assert(this.binding != null, "binding should not be null.");
+
+            return new ChannelFactory<TChannel>(this.binding, this.remoteAddress);
+        }
+    }
+}