private static void AddStudentsFromFile(
TextWriter writer,
string filename,
IStudentStore students
)
{
try {
using (StreamReader sr = File.OpenText(filename)) {
var header = Tokenize(sr.ReadLine());
if (!IsValidHeaderRow(header))
{
writer.WriteLine("Invalid header \n'{0}'.\nPlease correct it and try again.", header);
return;
}
while (!sr.EndOfStream)
{
var line = sr.ReadLine();
var row = Tokenize(line);
if (!IsValidStudentRow(header.Length, row))
{
writer.WriteLine("Invalid row \n'{0}'.\nPlease correct it and try again.", line);
return;
}
var student = ReadRowAsStudent(row);
students.Add(student);
}
}
}
catch (Exception ex) {
writer.WriteLine("Error while reading the file: {0}", ex.Message);
}
}
public async Task <ActionResult <int> > Add([FromBody] Student Student)
{
_Logger.LogInformation("Добавление студента {0}", Student);
var id = await _StudentStore.Add(Student);
_Logger.LogInformation("Студент {0} добавлен", Student);
return(id);
}
private static void BranchMenu(
TextReader reader,
TextWriter writer,
ClearOutput clearOut,
InteractiveIO io,
IStudentStore students
)
{
clearOut();
writer.WriteLine("Total students: {0}\n", students.Length);
writer.WriteLine("Which task would you like to execute?");
writer.WriteLine("{0}) Add a new student", (int)MenuChoice.AddStudent);
writer.WriteLine("{0}) Read students from file", (int)MenuChoice.ReadStudentsFile);
writer.WriteLine("{0}) Print results of students", (int)MenuChoice.PrintResults);
writer.WriteLine("{0}) Benchmark", (int)MenuChoice.Benchmark);
writer.WriteLine("{0}) Exit program\n", (int)MenuChoice.Exit);
writer.Write("Menu choice: ");
#pragma warning disable IDE0018 // Inline variable declaration
int menuChoice;
#pragma warning restore IDE0018 // Inline variable declaration
if (!int.TryParse(reader.ReadLine(), out menuChoice))
{
writer.WriteLine("Error parsing the choice, please try again...");
reader.Read();
}
else
{
switch (menuChoice)
{
case (int)MenuChoice.AddStudent: {
var student = ReadStudentInteractive(io);
students.Add(student);
break;
}
case (int)MenuChoice.ReadStudentsFile: {
var filename = io.ReadLineInteractive("File name: ");
AddStudentsFromFile(writer, filename, students);
writer.WriteLine("Press any key to continue.");
reader.Read();
break;
}
case (int)MenuChoice.PrintResults: {
var sortedStudents = students.All()
.OrderBy(x => x.surname)
.ThenBy(x => x.name);
StudentSummaryPrinter.PrintSummary(writer, sortedStudents);
reader.Read();
break;
}
case (int)MenuChoice.Benchmark: {
BenchmarkSuite(reader, writer);
reader.Read();
break;
}
case (int)MenuChoice.Exit: return;
default:
writer.WriteLine("Wrong choice, please try again...");
reader.Read();
break;
}
}
BranchMenu(reader, writer, clearOut, io, students);
}
