added ItemVarHolder

FlippR-Driver/networking/output/ItemVarHolder.h

@@ -0,0 +1,48 @@
+//
+// Created by johannes on 29.08.19.
+//
+
+#ifndef FLIPPR_DRIVER_ITEMVARHOLDER_H
+#define FLIPPR_DRIVER_ITEMVARHOLDER_H
+
+#include <Poco/Dynamic/VarHolder.h>
+#include <memory>
+
+#include "output/items/Item.h"
+
+
+template <>
+class Poco::Dynamic::VarHolderImpl<std::shared_ptr<flippR_driver::output::items::Item>> : public Poco::Dynamic::VarHolder
+{
+public:
+  VarHolderImpl(const std::shared_ptr<flippR_driver::output::items::Item> & item) :
+    item(item)
+  {}
+
+  void convert(std::string & val) const override
+  {
+    val = this->item->get_name();
+  }
+
+  VarHolder * clone(Placeholder < VarHolder > * pHolder = 0) const override
+  {
+    return cloneHolder(pHolder, item);
+  }
+
+  const std::type_info & type() const override
+  {
+    return typeid(item);
+  }
+
+  const std::shared_ptr<flippR_driver::output::items::Item> & value() const
+  {
+    return item;
+  }
+
+private:
+  std::shared_ptr<flippR_driver::output::items::Item> item;
+
+};
+
+
+#endif //FLIPPR_DRIVER_ITEMVARHOLDER_H