/// <summary>
/// Saves data to xml file.
/// </summary>
/// <param name="writer">Provider for writing.</param>
/// <param name="snapshot">The state to be saved.</param>
private static void ExportToXml(StreamWriter writer, FileCabinetServiceSnapshot snapshot)
{
snapshot.SaveToXml(writer);
}
private void Export(string parameters)
{
string[] parametersArr = parameters.Split(' ', 2);
if (parametersArr.Length < 2)
{
Console.WriteLine(Configurator.GetConstantString("InvalidInput"));
Console.WriteLine(Configurator.GetConstantString("CommandPatthern"));
Console.WriteLine(Configurator.GetConstantString("ExportPatthern"));
return;
}
const int exportTypeIndex = 0;
const int filePathIndex = 1;
if (File.Exists(parametersArr[filePathIndex]))
{
Console.WriteLine($"File is exist - rewrite {parametersArr[filePathIndex]}? [Y/n]");
string answer = Console.ReadLine();
if (answer.Equals(Configurator.GetConstantString("PositiveAnswer"), StringComparison.OrdinalIgnoreCase))
{
File.Delete(parametersArr[filePathIndex]);
}
else
{
return;
}
}
FileCabinetServiceSnapshot snapshot = this.Service.MakeSnapshot();
if (parametersArr[exportTypeIndex].Equals(Configurator.GetConstantString("CsvType"), StringComparison.OrdinalIgnoreCase))
{
try
{
using StreamWriter streamWriter = new StreamWriter(parametersArr[filePathIndex]);
streamWriter.WriteLine(Configurator.GetConstantString("CsvHeader"));
snapshot.SaveToCsv(streamWriter);
Console.WriteLine($"All records are exported to file {parametersArr[filePathIndex]}");
}
catch (DirectoryNotFoundException)
{
Console.WriteLine(Configurator.GetConstantString("DirectoryNotExist"));
}
}
else if (parametersArr[exportTypeIndex].Equals(Configurator.GetConstantString("XmlType"), StringComparison.OrdinalIgnoreCase))
{
XmlWriterSettings settings = new XmlWriterSettings
{
Indent = true,
IndentChars = "\t",
};
try
{
using XmlWriter xmlWriter = XmlWriter.Create(parametersArr[filePathIndex], settings);
snapshot.SaveToXml(xmlWriter);
Console.WriteLine($"All records are exported to file {parametersArr[filePathIndex]}");
}
catch (DirectoryNotFoundException)
{
Console.WriteLine(Configurator.GetConstantString("DirectoryNotExist"));
}
}
else
{
Console.WriteLine(Configurator.GetConstantString("InvalidFormatType"));
}
}
private void Export(string parameters)
{
bool rewrite = false;
var noRewrite = 'n';
const string xml = "xml";
const string csv = "csv";
try
{
snapshot = this.service.MakeSnapshot();
var parameterArray = parameters.Split(' ', StringSplitOptions.RemoveEmptyEntries);
if (parameterArray.Length != 2)
{
throw new ArgumentException("You did not specify the type of file to export or the path to export");
}
var fullPath = parameterArray.Last();
var nameFile = Path.GetFileName(fullPath);
var typeFile = parameterArray.First();
var extensionFile = Path.GetExtension(nameFile).TrimStart('.');
if (typeFile != extensionFile)
{
throw new ArgumentException($"You want to export data to a {nameFile}, but you specified the type {typeFile}");
}
if (File.Exists(fullPath))
{
Console.Write($"File is exist - rewrite {nameFile}?[Y / n] ");
var rewriteOrNo = ReadInput(RewriteConverter, RewriteValidator);
char.ToLower(rewriteOrNo, CultureInfo.InvariantCulture);
if (char.Equals(rewriteOrNo, noRewrite))
{
rewrite = true;
}
}
try
{
if (string.Equals(csv, typeFile, StringComparison.OrdinalIgnoreCase))
{
using (var sw = new StreamWriter(fullPath, rewrite))
{
snapshot.SaveToCsv(sw);
Console.WriteLine($"All records are exported to file {nameFile}");
}
}
else if (string.Equals(xml, typeFile, StringComparison.OrdinalIgnoreCase))
{
using (var sw = new StreamWriter(fullPath, rewrite))
{
snapshot.SaveToXml(sw);
Console.WriteLine($"All records are exported to file {nameFile}");
}
}
}
catch (DirectoryNotFoundException)
{
Console.WriteLine($"Export failed: can't open file {fullPath}");
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
}
}
catch (IndexOutOfRangeException)
{
Console.WriteLine("Enter the file extension and his name or path");
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
}
}
