just some thoughts about serializer

serializer.hpp

@@ -0,0 +1,70 @@
+// Squawk messenger. 
+// Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+// 
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+// 
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#include "serializer.h"
+
+template<class T>
+Core::DataBase::Serializer<T>::Serializer() :
+    bytes(),
+    buffer(&bytes),
+    stream(&buffer)
+{
+    buffer.open(QIODevice::WriteOnly);
+}
+
+template<class T>
+Core::DataBase::Serializer<T>::Serializer(const T& value) :
+    bytes(),
+    buffer(&bytes),
+    stream(&buffer)
+{
+    buffer.open(QIODevice::WriteOnly);
+    _setValue(value);
+}
+
+template<class T>
+Core::DataBase::Serializer<T>::~Serializer() {
+    buffer.close();
+}
+
+template<class T>
+MDB_val Core::DataBase::Serializer<T>::setData(const T& value) {
+    clear();
+    _setValue(value);
+    return getValue();
+}
+
+template<class T>
+void Core::DataBase::Serializer<T>::_setData(const T& value) {
+    stream << value;
+}
+
+template<class T>
+void Core::DataBase::Serializer<T>::clear() {
+    if (buffer.pos() > 0) {
+        buffer.seek(0);
+    }
+}
+
+template<class T>
+MDB_val Core::DataBase::Serializer<T>::getData() {
+    MDB_val val;
+
+    val.mv_size = buffer.pos();
+    val.mv_data = (uint8_t*)bytes.data();
+
+    return val;
+}