Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

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

@@ -0,0 +1,82 @@
+//-----------------------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//-----------------------------------------------------------------------------
+
+namespace System.ServiceModel
+{
+    using System;
+    using System.Collections.Generic;
+    using System.Runtime.Serialization;
+
+    public class UriSchemeKeyedCollection : SynchronizedKeyedCollection<string, Uri>
+    {
+        internal UriSchemeKeyedCollection(object syncRoot)
+            : base(syncRoot)
+        {
+        }
+
+        public UriSchemeKeyedCollection(params Uri[] addresses)
+        {
+            if (addresses == null)
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("addresses");
+
+            for (int i = 0; i < addresses.Length; i++)
+            {
+                this.Add(addresses[i]);
+            }
+        }
+
+        protected override string GetKeyForItem(Uri item)
+        {
+            return item.Scheme;
+        }
+
+        protected override void InsertItem(int index, Uri item)
+        {
+            ValidateBaseAddress(item, "item");
+            if (this.Contains(item.Scheme))
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument("item", SR.GetString(SR.BaseAddressDuplicateScheme, item.Scheme));
+
+            base.InsertItem(index, item);
+        }
+
+        protected override void SetItem(int index, Uri item)
+        {
+            ValidateBaseAddress(item, "item");
+            if (this[index].Scheme != item.Scheme)
+            {
+                if (this.Contains(item.Scheme))
+                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument("item", SR.GetString(SR.BaseAddressDuplicateScheme, item.Scheme));
+            }
+            base.SetItem(index, item);
+        }
+
+        internal static void ValidateBaseAddress(Uri uri, string argumentName)
+        {
+            if (uri == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull(argumentName);
+            }
+
+            if (!uri.IsAbsoluteUri)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument(argumentName, SR.GetString(SR.BaseAddressMustBeAbsolute));
+            }
+
+            if (!string.IsNullOrEmpty(uri.UserInfo))
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument(argumentName, SR.GetString(SR.BaseAddressCannotHaveUserInfo));
+            }
+
+            if (!string.IsNullOrEmpty(uri.Query))
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument(argumentName, SR.GetString(SR.BaseAddressCannotHaveQuery));
+            }
+
+            if (!string.IsNullOrEmpty(uri.Fragment))
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument(argumentName, SR.GetString(SR.BaseAddressCannotHaveFragment));
+            }
+        }
+    }
+}