Added Result in Utilities

Introduced typedefs for Result's data

logdoctor/utilities/result.cpp

@@ -0,0 +1,56 @@
+
+#include "result.h"
+#include "modules/exceptions.h"
+
+
+template <typename T>
+Result<T>::Result()
+{
+    this->result = false;
+}
+
+template <typename T>
+Result<T>::Result( const bool ok, const T& data )
+{
+    this->result = ok;
+    this->data   = std::move(data);
+}
+
+template <typename T>
+Result<T>::operator bool()
+{
+    return this->result;
+}
+
+/*
+template <typename T>
+const bool Result<T>::isOk()
+{
+    return this->result == true;
+}
+
+template <typename T>
+const bool Result<T>::isErr()
+{
+    return this->result == false;
+}
+*/
+
+template <typename T>
+const T& Result<T>::getData()
+{
+    if ( this->result ) {
+        return this->data;
+    } else {
+        // unexpected operation
+        throw GenericException( "Result is Err, no data to be returned", true );
+    }
+}
+
+
+template class Result< stats_dates_t       >; // std::unordered_map<int, std::unordered_map<int, std::unordered_map<int, std::vector<int>>>>
+template class Result< stats_warn_items_t  >; // std::vector<std::vector<std::vector<std::vector<QString>>>>
+template class Result< stats_speed_items_t >; // std::vector<std::tuple<long long, std::vector<QString>>>
+template class Result< stats_day_items_t   >; // std::unordered_map<int, std::unordered_map<int, int>>
+template class Result< stats_relat_items_t >; // std::vector<std::tuple<long long, int>>
+template class Result< stats_count_items_t >; // std::vector<std::tuple<QString, int>>

logdoctor/utilities/result.h

@@ -0,0 +1,51 @@
+#ifndef RESULT_H
+#define RESULT_H
+
+#include <QString>
+
+#include <unordered_map>
+#include <vector>
+#include <tuple>
+
+
+//! Result
+/*!
+    Holds the result for an operation and the relative data
+*/
+template <typename T>
+class Result
+{
+public:
+    Result();
+    Result( const bool ok, const T& data );
+
+    explicit operator bool();
+
+    /*
+    //! Checks if the operation was successful
+    const bool isOk();
+
+    //! Checks if the operation has failed
+    const bool isErr();
+    */
+
+    //! Returns the data
+    const T& getData();
+
+private:
+
+    bool result;
+
+    T data;
+};
+
+
+// data types
+typedef std::unordered_map<int, std::unordered_map<int, std::unordered_map<int, std::vector<int>>>> stats_dates_t;
+typedef std::vector<std::vector<std::vector<std::vector<QString>>>> stats_warn_items_t;
+typedef std::vector<std::tuple<long long, std::vector<QString>>> stats_speed_items_t;
+typedef std::unordered_map<int, std::unordered_map<int, int>> stats_day_items_t;
+typedef std::vector<std::tuple<long long, int>> stats_relat_items_t;
+typedef std::vector<std::tuple<QString, int>> stats_count_items_t;
+
+#endif // RESULT_H