Add implemented the CSVReader.cpp and added a function to OBE.cpp

CM2005 Object Oriented Programming/Topic 3/3.4.7/CSVReader.cpp

@@ -0,0 +1,48 @@
+#include "CSVReader.h"
+#include "OrderBookEntry.h"
+#include <string>
+
+CSVReader::CSVReader()
+{
+
+}
+
+std::vector<OrderBookEntry> CSVReader::readCSV(std::string csvFile)
+{
+  std::vector<OrderBookEntry> entries;
+  return entries;
+}
+
+std::vector<std::string> CSVReader::tokenise(std::string csvLine, char separator)
+{
+  std::vector<std::string> tokens;
+  return tokens;
+}
+
+OrderBookEntry CSVReader::stringsToBE(std::vector<std::string> tokens)
+{
+  if(tokens.size() != 5) //bad
+  {
+    throw std::exception{};
+  }
+  
+  // We checked and we have 5 tokens
+  double price{};
+  double amount{};
+  try
+  {
+    price = std::stod(tokens[3]);
+    amount = std::stod(tokens[4]);
+  }
+  catch(const std::exception& e)
+  {
+    throw e;
+  }
+
+  OrderBookEntry obe{ price,
+                      amount,
+                      tokens[0],
+                      tokens[1],
+                      OrderBookEntry::stringToOrderBookType(tokens[2])};
+  return obe;
+}