--- /dev/null
+/*
+ Copyright (c) 2018-2019 Nokia.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+#ifndef SHAREDDATALAYER_NAMESPACEVALIDATOR_HPP_
+#define SHAREDDATALAYER_NAMESPACEVALIDATOR_HPP_
+
+#include <string>
+
+namespace shareddatalayer
+{
+ using Namespace = std::string;
+
+ const std::string& getDisallowedCharactersInNamespace();
+
+ bool isValidNamespaceSyntax(const Namespace& ns);
+
+ void validateNamespace(const Namespace& ns);
+
+ bool isValidNamespace(const Namespace& ns);
+}
+#endif