private static int AsessTaskPriority(ServerTask serverTask, int taskIndex)
{
// Initial priority rate
int priority = 100;
// Asessment by:
// - account type
if (serverTask.Account.IsPremium)
{
priority += 100;
}
// - performed operations
priority -= serverTask.Account.PerformedOperations * 5;
// - transfer size
priority -= serverTask.Duration * 2;
// - transfer total size
priority -= (serverTask.Account.TransferTotalSize / Server.LoggedClients.Count) * 5;
// - transfer progress
priority += serverTask.Progress * 1;
// - arrival order
priority -= taskIndex * 1;
return(priority);
}
public static void AddTask(ServerTask task)
{
task.PriorityChanged += OnTaskPriorityChanged;
task.StatusChanged += OnTaskStatusChanged;
Tasks.Add(task);
TasksListChanged?.Invoke(Tasks);
}
private static void OnTaskStatusChanged(ServerTask serverTask)
{
if (serverTask.Status == ServerTask.TaskStatus.Finished)
{
RemoveTask(serverTask);
}
var taskCopy = (ServerTask)serverTask.FlatCopy();
TasksListChanged?.Invoke(Tasks);
TasksStatusChanged?.Invoke(taskCopy);
ClientListChanged?.Invoke(LoggedClients);
}
private void OnTaskStatusChanged(ServerTask serverTask)
{
UpdateLog(string.Format("Task status changed Client:{0} File:{1} Status:{2} Priority:{3} " +
"Running tasks:{4}/{5} Assigned tasks:{6}/{7}",
serverTask.Account.Name,
serverTask.FileName,
serverTask.Status.ToString(),
serverTask.Priority.ToString(),
Server.RunningTasksCount,
Configuration.MaxRunningThreads,
serverTask.Account.AssignedTasksCount.ToString(),
serverTask.Account.MaxTasksCount.ToString()
));
}
private void UpdateTaskItem(ListViewItem item, ServerTask task)
{
item.SubItems[1].Text = task.Account.Name;
item.SubItems[2].Text = task.Type.ToString();
item.SubItems[3].Text = task.FileName;
item.SubItems[4].Text = task.Status.ToString();
item.SubItems[5].Text = task.Progress.ToString() + "%";
item.SubItems[6].Text = task.Priority.ToString();
if (item.SubItems[4].Text == ServerTask.TaskStatus.Running.ToString())
{
item.BackColor = Color.LightGreen;
}
else
{
item.BackColor = Color.White;
}
}
// Download file from server to target directory.
public void DownloadFile(Cookie cookie, string fileName)
{
var clientAccount = Server.LoggedClients.Where(c => c.Name == cookie.ClientName).ToArray()[0];
var serverTask = new ServerTask(ServerTask.TaskType.Download)
{
Account = clientAccount,
FileName = fileName,
SourcePath = Configuration.ServerDirectory + "\\" + cookie.ClientName + "\\" + fileName,
DestinationPath = cookie.FolderPath + "\\" + fileName,
Duration = FileOperation.ParseFileName(fileName)
};
serverTask.Account.PerformedOperations++;
serverTask.Account.TransferTotalSize += serverTask.Duration;
Server.AddTask(serverTask);
}
private ListViewItem CreateTaskItem(ServerTask task)
{
var item = new ListViewItem(task.Id.ToString());
item.Tag = task.Id;
ListViewItem.ListViewSubItem[] subItems = new ListViewItem.ListViewSubItem[]
{
new ListViewItem.ListViewSubItem(item, task.Account.Name),
new ListViewItem.ListViewSubItem(item, task.Type.ToString()),
new ListViewItem.ListViewSubItem(item, task.FileName),
new ListViewItem.ListViewSubItem(item, task.Status.ToString()),
new ListViewItem.ListViewSubItem(item, task.Progress.ToString() + "%"),
new ListViewItem.ListViewSubItem(item, task.Priority.ToString()),
};
item.SubItems.AddRange(subItems);
if (item.SubItems[4].Text == ServerTask.TaskStatus.Running.ToString())
{
item.BackColor = Color.LightGreen;
}
return(item);
}
public void SuspendLowerPriorityTask(ServerTask task)
{
SuspendedTask = task;
SuspendedTask.semaphore.WaitOne();
SuspendedTask.ChangeStatus(TaskStatus.Suspended);
}
private static void OnTaskPriorityChanged(ServerTask serverTask)
{
TasksListChanged?.Invoke(Tasks);
}
public static void RemoveTask(ServerTask task)
{
Tasks.Remove(task);
TasksListChanged?.Invoke(Tasks);
}
