Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.ServiceModel/System/ServiceModel/Description/MetadataLocation.cs

@@ -0,0 +1,44 @@
+//------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------
+
+namespace System.ServiceModel.Description
+{
+    using System;
+    using System.Collections.Generic;
+    using System.Text;
+    using System.Xml;
+    using System.Xml.Serialization;
+
+    [XmlRoot(ElementName = MetadataStrings.MetadataExchangeStrings.Location, Namespace = MetadataStrings.MetadataExchangeStrings.Namespace)]
+    public class MetadataLocation
+    {
+        string location;
+
+        public MetadataLocation()
+        {
+        }
+
+        public MetadataLocation(string location)
+        {
+            this.Location = location;
+        }
+
+        [XmlText]
+        public string Location
+        {
+            get { return this.location; }
+            set
+            {
+                if (value != null)
+                {
+                    Uri uri;
+                    if (!Uri.TryCreate(value, UriKind.RelativeOrAbsolute, out uri))
+                        throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument(SR.GetString(SR.SFxMetadataReferenceInvalidLocation, value));
+                }
+
+                this.location = value;
+            }
+        }
+    }
+}