/// <inheritdoc/>
public int CreateRecord(RecordParams recordParams)
{
if (recordParams is null)
{
throw new ArgumentNullException($"{nameof(recordParams)} must nit be null");
}
this.validator.ValidateCabinetRecord(recordParams);
this.fileStream.Position = this.fileStream.Length;
this.dictionaryId.Add(this.id + 1, this.fileStream.Position);
AddToDictionary<string, long>(this.firstNameDictionary, recordParams.FirstName.ToUpperInvariant(), this.fileStream.Position);
AddToDictionary<string, long>(this.lastNameDictionary, recordParams.LastName.ToUpperInvariant(), this.fileStream.Position);
AddToDictionary<DateTime, long>(this.dateOfBirthDictionary, recordParams.DateOfBirth, this.fileStream.Position);
byte[] tempFirstName = Encoding.Default.GetBytes(recordParams.FirstName);
byte[] tempLastName = Encoding.Default.GetBytes(recordParams.LastName);
byte[] firstName = new byte[120];
byte[] lastName = new byte[120];
ToBytesDecimal toBytesDecimal = new ToBytesDecimal(recordParams.Salary);
byte[] bytesSalary = BitConverter.GetBytes(toBytesDecimal.Bytes1).Concat(BitConverter.GetBytes(toBytesDecimal.Bytes2)).ToArray();
Array.Copy(tempFirstName, 0, firstName, 0, tempFirstName.Length);
Array.Copy(tempLastName, 0, lastName, 0, tempLastName.Length);
this.fileStream.Write(BitConverter.GetBytes(recordParams.Department));
this.fileStream.Write(BitConverter.GetBytes(++this.id));
this.fileStream.Write(firstName);
this.fileStream.Write(lastName);
this.fileStream.Write(BitConverter.GetBytes(recordParams.DateOfBirth.Year));
this.fileStream.Write(BitConverter.GetBytes(recordParams.DateOfBirth.Month));
this.fileStream.Write(BitConverter.GetBytes(recordParams.DateOfBirth.Day));
this.fileStream.Write(bytesSalary);
this.fileStream.Write(BitConverter.GetBytes(recordParams.Class));
this.fileStream.Write(new byte[] { 0 });
return this.id;
}
/// <summary>
/// Restores the specified snapshot.
/// </summary>
/// <param name="snapshot">The snapshot.</param>
public void Restore(FileCabinetServiceSnapshot snapshot)
{
if (snapshot is null)
{
throw new ArgumentNullException(nameof(snapshot));
}
foreach (FileCabinetRecord record in snapshot.Records)
{
try
{
this.validator.ValidateCabinetRecord(RecordToParams(record));
if (this.dictionaryId.ContainsKey(record.Id))
{
this.EditRecord(record.Id, RecordToParams(record));
}
else
{
this.fileStream.Position = this.fileStream.Length;
this.dictionaryId.Add(record.Id, this.fileStream.Position);
AddToDictionary<string, long>(this.firstNameDictionary, record.FirstName.ToUpperInvariant(), this.fileStream.Position);
AddToDictionary<string, long>(this.lastNameDictionary, record.LastName.ToUpperInvariant(), this.fileStream.Position);
AddToDictionary<DateTime, long>(this.dateOfBirthDictionary, record.DateOfBirth, this.fileStream.Position);
byte[] tempFirstName = Encoding.Default.GetBytes(record.FirstName);
byte[] tempLastName = Encoding.Default.GetBytes(record.LastName);
byte[] firstName = new byte[120];
byte[] lastName = new byte[120];
ToBytesDecimal toBytesDecimal = new ToBytesDecimal(record.Salary);
byte[] bytesSalary = BitConverter.GetBytes(toBytesDecimal.Bytes1).Concat(BitConverter.GetBytes(toBytesDecimal.Bytes2)).ToArray();
Array.Copy(tempFirstName, 0, firstName, 0, tempFirstName.Length);
Array.Copy(tempLastName, 0, lastName, 0, tempLastName.Length);
this.fileStream.Write(BitConverter.GetBytes(record.Department));
this.fileStream.Write(BitConverter.GetBytes(record.Id));
this.fileStream.Write(firstName);
this.fileStream.Write(lastName);
this.fileStream.Write(BitConverter.GetBytes(record.DateOfBirth.Year));
this.fileStream.Write(BitConverter.GetBytes(record.DateOfBirth.Month));
this.fileStream.Write(BitConverter.GetBytes(record.DateOfBirth.Day));
this.fileStream.Write(bytesSalary);
this.fileStream.Write(BitConverter.GetBytes(record.Class));
this.fileStream.Write(new byte[] { 0 });
}
this.id = Math.Max(this.id, record.Id);
}
catch (ArgumentException e)
{
Console.WriteLine($"{record.Id}: {e.Message}");
}
}
}
/// <summary>
/// Inserts the specified record.
/// </summary>
/// <param name="record">The record.</param>
/// <exception cref="ArgumentNullException">Throws when record is null.</exception>
/// <exception cref="ArgumentException">Record id must be more than zero.
/// or
/// Such identifier already exists.</exception>
public void Insert(FileCabinetRecord record)
{
if (record is null)
{
throw new ArgumentNullException(nameof(record));
}
if (record.Id == -1)
{
throw new ArgumentException("Record id must be more than zero.");
}
this.validator.ValidateCabinetRecord(RecordToParams(record));
if (this.dictionaryId.ContainsKey(record.Id))
{
throw new ArgumentException("Such identifier already exists.");
}
else
{
this.fileStream.Position = this.fileStream.Length;
this.dictionaryId.Add(record.Id, this.fileStream.Position);
AddToDictionary<string, long>(this.firstNameDictionary, record.FirstName.ToUpperInvariant(), this.fileStream.Position);
AddToDictionary<string, long>(this.lastNameDictionary, record.LastName.ToUpperInvariant(), this.fileStream.Position);
AddToDictionary<DateTime, long>(this.dateOfBirthDictionary, record.DateOfBirth, this.fileStream.Position);
byte[] tempFirstName = Encoding.Default.GetBytes(record.FirstName);
byte[] tempLastName = Encoding.Default.GetBytes(record.LastName);
byte[] firstName = new byte[120];
byte[] lastName = new byte[120];
ToBytesDecimal toBytesDecimal = new ToBytesDecimal(record.Salary);
byte[] bytesSalary = BitConverter.GetBytes(toBytesDecimal.Bytes1).Concat(BitConverter.GetBytes(toBytesDecimal.Bytes2)).ToArray();
Array.Copy(tempFirstName, 0, firstName, 0, tempFirstName.Length);
Array.Copy(tempLastName, 0, lastName, 0, tempLastName.Length);
this.fileStream.Write(BitConverter.GetBytes(record.Department));
this.fileStream.Write(BitConverter.GetBytes(record.Id));
this.fileStream.Write(firstName);
this.fileStream.Write(lastName);
this.fileStream.Write(BitConverter.GetBytes(record.DateOfBirth.Year));
this.fileStream.Write(BitConverter.GetBytes(record.DateOfBirth.Month));
this.fileStream.Write(BitConverter.GetBytes(record.DateOfBirth.Day));
this.fileStream.Write(bytesSalary);
this.fileStream.Write(BitConverter.GetBytes(record.Class));
this.fileStream.Write(new byte[] { 0 });
}
this.id = Math.Max(this.id, record.Id);
}
private FileCabinetRecord RecordFromBytes(byte[] buffer)
{
ToBytesDecimal toDecimal = default;
int year;
int month;
int day;
FileCabinetRecord record = new FileCabinetRecord();
record.Department = BitConverter.ToInt16(buffer, 0);
record.Id = BitConverter.ToInt32(buffer, 2);
record.FirstName = Encoding.Default.GetString(buffer, 6, 120).Trim('\0');
record.LastName = Encoding.Default.GetString(buffer, 126, 120).Trim('\0');
year = BitConverter.ToInt32(buffer, 246);
month = BitConverter.ToInt32(buffer, 250);
day = BitConverter.ToInt32(buffer, 254);
toDecimal.Bytes1 = BitConverter.ToInt64(buffer, 258);
toDecimal.Bytes2 = BitConverter.ToInt64(buffer, 266);
record.Salary = toDecimal.GetDecimal();
record.Class = BitConverter.ToChar(buffer, 274);
record.DateOfBirth = new DateTime(year, month, day);
return buffer[276] == 0 ? record : throw new KeyNotFoundException();
}
/// <summary>
/// Edits the record.
/// </summary>
/// <param name="id">The identifier.</param>
/// <param name="recordParams">The record parameters.</param>
/// <exception cref="ArgumentNullException">Throws when recordParams is null.</exception>
/// <exception cref="KeyNotFoundException">Throws when Id not found.</exception>
public void EditRecord(int id, RecordParams recordParams)
{
if (recordParams is null)
{
throw new ArgumentNullException($"{nameof(recordParams)} must nit be null");
}
this.validator.ValidateCabinetRecord(recordParams);
byte[] buffer = new byte[277];
this.fileStream.Position = 0;
if (this.dictionaryId.ContainsKey(id))
{
long position = this.dictionaryId[id];
this.fileStream.Position = position;
this.fileStream.Read(buffer, 0, 277);
FileCabinetRecord record = this.RecordFromBytes(buffer);
if (record.FirstName.ToUpperInvariant() != recordParams.FirstName.ToUpperInvariant())
{
this.firstNameDictionary[record.FirstName.ToUpperInvariant()].Remove(position);
AddToDictionary<string, long>(this.firstNameDictionary, recordParams.FirstName.ToUpperInvariant(), position);
}
if (record.LastName.ToUpperInvariant() != recordParams.LastName.ToUpperInvariant())
{
this.lastNameDictionary[record.LastName.ToUpperInvariant()].Remove(position);
AddToDictionary<string, long>(this.lastNameDictionary, recordParams.LastName.ToUpperInvariant(), position);
}
if (record.DateOfBirth != recordParams.DateOfBirth)
{
this.dateOfBirthDictionary[record.DateOfBirth].Remove(position);
AddToDictionary<DateTime, long>(this.dateOfBirthDictionary, recordParams.DateOfBirth, position);
}
this.fileStream.Position = position;
byte[] tempFirstName = Encoding.Default.GetBytes(recordParams.FirstName);
byte[] tempLastName = Encoding.Default.GetBytes(recordParams.LastName);
byte[] firstName = new byte[120];
byte[] lastName = new byte[120];
ToBytesDecimal toBytesDecimal = new ToBytesDecimal(recordParams.Salary);
byte[] bytesSalary = BitConverter.GetBytes(toBytesDecimal.Bytes1).Concat(BitConverter.GetBytes(toBytesDecimal.Bytes2)).ToArray();
Array.Copy(tempFirstName, 0, firstName, 0, tempFirstName.Length);
Array.Copy(tempLastName, 0, lastName, 0, tempLastName.Length);
this.fileStream.Write(BitConverter.GetBytes(recordParams.Department));
this.fileStream.Write(BitConverter.GetBytes(id));
this.fileStream.Write(firstName);
this.fileStream.Write(lastName);
this.fileStream.Write(BitConverter.GetBytes(recordParams.DateOfBirth.Year));
this.fileStream.Write(BitConverter.GetBytes(recordParams.DateOfBirth.Month));
this.fileStream.Write(BitConverter.GetBytes(recordParams.DateOfBirth.Day));
this.fileStream.Write(bytesSalary);
this.fileStream.Write(BitConverter.GetBytes(recordParams.Class));
this.fileStream.Write(new byte[] { 0 });
this.fileStream.Position = this.fileStream.Length;
return;
}
throw new KeyNotFoundException($"wrong {nameof(id)}");
}
