/// <summary>
/// Adds a hard disk
/// </summary>
/// <param name="disk">The disk to add</param>
/// <exception cref="HardDiskException">A hard disk exception is thrown</exception>
public void AddDisk(HardDisk disk)
{
if (_disks.Count == 50)
{
throw new HardDiskException("Maximum number of disks exceeded");
}
_disks.Add(disk);
}
/// <summary>
/// Add disk of the specified used size and total
/// </summary>
/// <param name="used">Used MB</param>
/// <param name="total">Total MB</param>
/// <exception cref="HardDiskException">A hard disk exception is thrown</exception>
public void AddDisk(int used, int total)
{
if (_disks.Count == 50)
{
throw new HardDiskException("Maximum number of disks exceeded");
}
HardDisk disk = new HardDisk(used, total);
this.AddDisk(disk);
}
/// <summary>
/// Generate a random disks environment for testing purposes
/// </summary>
public void GenerateRandom()
{
_disks.Clear();
Random rnd = new Random();
int numdisks = rnd.Next(1, 50);
for (int i = 0; i < numdisks - 1; i++)
{
this.AddDisk(HardDisk.GenerateRandom());
}
}
/// <summary>
/// Preconciliates the disks
/// </summary>
/// <returns>The minimum number of disks that can hold all the data</returns>
public int Preconciliate()
{
// Create a copy of the drives
List <HardDisk> diskscopy = new List <HardDisk>();
foreach (HardDisk disk in _disks)
{
HardDisk ndisk = new HardDisk(disk.Used, disk.Total);
diskscopy.Add(ndisk);
}
// Make conciliation
bool dataMoved = true;
while (dataMoved == true)
{
dataMoved = false;
for (int i = diskscopy.Count - 1; i >= 0; i--)
{
if (i != 0 && diskscopy[i].Used > 0 && diskscopy[i - 1].Free > 0)
{
dataMoved = true;
diskscopy[i].MoveData(diskscopy[i - 1].Free, diskscopy[i - 1]);
}
}
}
// Remove unused disks
for (int i = diskscopy.Count - 1; i >= 0; i--)
{
if (diskscopy[i].Used == 0)
{
diskscopy.RemoveAt(i);
}
}
return(diskscopy.Count);
}
