Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

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

@@ -0,0 +1,49 @@
+//----------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//----------------------------------------------------------------
+
+namespace System
+{
+    using System.Collections.Specialized;
+    using System.Runtime;
+    using System.ServiceModel.Channels;
+    using System.Text;
+
+    class UriTemplateVariableQueryValue : UriTemplateQueryValue
+    {
+        readonly string varName;
+
+        public UriTemplateVariableQueryValue(string varName)
+            : base(UriTemplatePartType.Variable)
+        {
+            Fx.Assert(!string.IsNullOrEmpty(varName), "bad variable segment");
+            this.varName = varName;
+        }
+        public override void Bind(string keyName, string[] values, ref int valueIndex, StringBuilder query)
+        {
+            Fx.Assert(valueIndex < values.Length, "Not enough values to bind");
+            if (values[valueIndex] == null)
+            {
+                valueIndex++;
+            }
+            else
+            {
+                query.AppendFormat("&{0}={1}", UrlUtility.UrlEncode(keyName, Encoding.UTF8), UrlUtility.UrlEncode(values[valueIndex++], Encoding.UTF8));
+            }
+        }
+
+        public override bool IsEquivalentTo(UriTemplateQueryValue other)
+        {
+            if (other == null)
+            {
+                Fx.Assert("why would we ever call this?");
+                return false;
+            }
+            return (other.Nature == UriTemplatePartType.Variable);
+        }
+        public override void Lookup(string value, NameValueCollection boundParameters)
+        {
+            boundParameters.Add(this.varName, value);
+        }
+    }
+}