dir structure changed

src/system/syselmts.hpp

@@ -0,0 +1,68 @@
+#ifndef _SYSELEMENTS_HPP_
+#define _SYSELEMENTS_HPP_
+
+#include <string>
+#include <vector>
+#include <unordered_map>
+#include <stdexcept>
+
+class SystemElement
+{
+public:
+    std::string name;
+    SystemElement(std::string name) : name(name) {};
+};
+
+template <typename T>
+class SystemElementContainer : public SystemElement
+{
+private:
+    static_assert(std::is_base_of<SystemElement, T>::value, "T shall be a system element descendant !");
+    unsigned int iter_count;
+    std::unordered_map<std::string, T> content;
+
+    bool name_exists(std::string name)
+    {
+        return get(name) != nullptr;
+    }
+
+public:
+    SystemElementContainer(std::string name) : SystemElement(name) {};
+    SystemElementContainer(std::string name, std::vector<T> elements) : SystemElement(name)
+    {
+        add(elements);
+    }
+    void add(T element)
+    {
+        if ("" == element.name)
+        {
+            throw std::runtime_error("System elements with empty names are forbidden");
+        }
+        if (name_exists(element.name))
+        {
+            throw std::runtime_error("System elements of same names are forbidden");
+        }
+        content.insert({element.name, element});
+    }
+    void add(std::vector<T> elements)
+    {
+        for (auto &element : elements)
+        {
+            add(element);
+        }
+    }
+    T *get(std::string name)
+    {
+        auto it = content.find(name);
+        if (it != content.end())
+        {
+            return &it->second;
+        }
+        else
+        {
+            return nullptr;
+        }
+    }
+};
+
+#endif