// Used to download multiple files in list. Useful for threading (IE thread1 should download items 1-3, thread2 should download items 4-6, etc.)
private static void downloadPattern(List <Uri> filesFromServer, int startIndex, int endIndex, CustomProgressBar bar, GridMaker displayController, MainDisplay me)
{
if (STOP)
{
return;
}
for (int i = startIndex; i < endIndex; i = i + 1)
{
if (i < filesFromServer.Count)
{
String file = filesFromServer.ElementAt(i).ToString();
String fileExtension = file.Substring(file.LastIndexOf("/") + 1);
try
{
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(filesFromServer.ElementAt(i));
req.Timeout = 120000;
req.ReadWriteTimeout = 120000;
var w = (HttpWebResponse)req.GetResponse();
using (Stream filer = File.OpenWrite(Properties.Settings.Default.runpath + "\\" + fileExtension))
{
w.GetResponseStream().CopyTo(filer);
}
}
catch (System.Net.WebException e)
{
MessageBox.Show("Please check your internet connection. Heres what we know:\n" + e.Message, "An error was incurred",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
Debug.WriteLine("file");
if (STOP)
{
FileInfo tfile = new FileInfo(Properties.Settings.Default.runpath + "\\" + fileExtension);
Debug.WriteLine(tfile.Exists);
tfile.Delete();
return;
}
if (bar.InvokeRequired)
{
bar.BeginInvoke((MethodInvoker) delegate() { bar.Step = 1; });
bar.BeginInvoke((MethodInvoker) delegate() { bar.PerformStep(); });
}
else
{
bar.BeginInvoke((MethodInvoker) delegate() { bar.Step = 1; });
bar.BeginInvoke((MethodInvoker) delegate() { bar.PerformStep(); });
}
if (bar.Value + 1 >= bar.Maximum)
{
finishFile(bar, displayController, me, false);
}
}
}
}
// Fired when sync ends... either when complete or canceled
public static void finishFile(CustomProgressBar bar, GridMaker displayController, MainDisplay me, bool onlyDisplayDownloaded)
{
Debug.WriteLine("done syncing!");
me.cancel = false;
System.Threading.Thread.Sleep(1000);
if (bar.InvokeRequired)
{
bar.BeginInvoke((MethodInvoker) delegate() { bar.Value = 0; });
bar.BeginInvoke((MethodInvoker) delegate() { bar.UpdateText(); });
bar.BeginInvoke((MethodInvoker) delegate() { bar.Refresh(); });
bar.BeginInvoke((MethodInvoker) delegate() { bar.UpdateText(); });
}
else
{
bar.Value = 0;
bar.UpdateText();
bar.Refresh();
bar.UpdateText();
}
displayController.generateFromFolder(me, onlyDisplayDownloaded);
isSyncing = false;
}
// Delete all other files, split up downloads into new threads and start them
public static void sync(CustomProgressBar progbar, GridMaker displayController, MainDisplay me)
{
if (STOP || isSyncing)
{
return;
}
isSyncing = true;
try
{
DirectoryInfo di = new DirectoryInfo(Properties.Settings.Default.runpath);
foreach (FileInfo file in di.GetFiles())
{
file.Delete();
}
foreach (DirectoryInfo dir in di.GetDirectories())
{
dir.Delete(true);
}
}
catch (IOException)
{
Thread.CurrentThread.Abort();
}
AisUriProvider api = new AisUriProvider();
List <Uri> filesFromServer = api.Get().ToList();
if (progbar.InvokeRequired)
{
progbar.BeginInvoke((MethodInvoker) delegate() { progbar.Maximum = filesFromServer.Count(); });
}
else
{
progbar.Maximum = filesFromServer.Count();
}
for (int i = 0; i < filesFromServer.Count; i = i + (filesFromServer.Count / Properties.Settings.Default.n))
{
int lowerBound = i;
int upperBound = i + (filesFromServer.Count / Properties.Settings.Default.n);
Thread t3 = new Thread(() => downloadPattern(filesFromServer, lowerBound, upperBound, progbar, displayController, me));
t3.Start();
}
}