Opensource ML embedded evaluation kit
Change-Id: I12e807f19f5cacad7cef82572b6dd48252fd61fd
diff --git a/source/application/main/include/AppContext.hpp b/source/application/main/include/AppContext.hpp
new file mode 100644
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+++ b/source/application/main/include/AppContext.hpp
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+/*
+ * Copyright (c) 2021 Arm Limited. All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * 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 APP_CTX_HPP
+#define APP_CTX_HPP
+
+#include <string>
+#include <map>
+
+namespace arm {
+namespace app {
+
+ class IAttribute
+ {
+ public:
+ virtual ~IAttribute() = default;
+ };
+
+ template<typename T>
+ class Attribute : public IAttribute
+ {
+ public:
+ ~Attribute() override = default;
+
+ explicit Attribute(const T value): _m_value(value){}
+
+ T Get()
+ {
+ return _m_value;
+ }
+ private:
+ T _m_value;
+ };
+
+ /* Application context class */
+ class ApplicationContext {
+ public:
+
+ /**
+ * @brief Saves given value as a named attribute in the context.
+ * @tparam T value type.
+ * @param[in] name Context attribute name.
+ * @param[in] object Value to save in the context.
+ */
+ template<typename T>
+ void Set(const std::string &name, T object)
+ {
+ this->_m_attributes[name] = new Attribute<T>(object);
+ }
+
+ /**
+ * @brief Gets the saved attribute from the context by the given name.
+ * @tparam T value type.
+ * @param[in] name Context attribute name.
+ * @return Value saved in the context.
+ */
+ template<typename T>
+ T Get(const std::string &name)
+ {
+ auto a = (Attribute<T>*)_m_attributes[name];
+ return a->Get();
+ }
+
+ /**
+ * @brief Checks if an attribute for a given name exists in the context.
+ * @param[in] name Attribute name.
+ * @return true if attribute exists, false otherwise
+ */
+ bool Has(const std::string& name)
+ {
+ return _m_attributes.find(name) != _m_attributes.end();
+ }
+
+ ApplicationContext() = default;
+
+ ~ApplicationContext() {
+ for (auto& attribute : _m_attributes)
+ delete attribute.second;
+
+ this->_m_attributes.clear();
+ }
+ private:
+ std::map<std::string, IAttribute*> _m_attributes;
+ };
+
+} /* namespace app */
+} /* namespace arm */
+
+#endif /* APP_CTX_HPP */