private void GetAssignmentSubmissionCompleted(object sender, GetAssignmentSubmissionCompletedEventArgs e)
{
object[] args = e.UserState as object[];
OsbleServiceClient client = args[0] as OsbleServiceClient;
EventHandler onCompletion = args[1] as EventHandler;
if (null == e.Error && !e.Cancelled)
{
AddFromZip(e.Result);
}
// Close the OSBLE client
client.CloseAsync();
m_gettingFiles = false;
onCompletion(this, new RelevantAssignmentEventArgs(m_files));
}
private void OsbleClient_GetAssignmentSubmissionCompleted(object sender,
GetAssignmentSubmissionCompletedEventArgs e)
{
if (e.Cancelled || null != e.Error)
{
m_currentAssignment = null;
OnDownloadComplete(this, new OSBLEStateEventArgs(false,
"Could not download the specified assignment file"));
return;
}
// If there hasn't been any submission for this assignment yet then it may be 0 bytes in size
if (0 == e.Result.Length)
{
OnDownloadComplete(this, new OSBLEStateEventArgs(true,
"Assignment has yet to be submitted. You may save your work to OSBLE to submit " +
"the first version for this assignment.", null));
return;
}
// Make a memory stream for the byte array
System.IO.MemoryStream ms = new System.IO.MemoryStream(e.Result);
// Create the zip file
ICSharpCode.SharpZipLib.Zip.ZipFile zf = new ICSharpCode.SharpZipLib.Zip.ZipFile(ms);
// If there are 0 files in the zip, then let the user know that nothing has been submitted
if (0 == zf.Count)
{
OnDownloadComplete(this, new OSBLEStateEventArgs(true,
"Assignment has yet to be submitted. You may save your work to OSBLE to submit " +
"the first version for this assignment.", null));
return;
}
// Go through the files within the zip looking for the .cpml
foreach (ICSharpCode.SharpZipLib.Zip.ZipEntry ze in zf)
{
if (ze.Name.ToLower().EndsWith(".cpml"))
{
// We need a stream that is seekable and the Zip streams don't guarantee this. Thus
// we'll read the whole thing into a memory stream.
MemoryStream msUncompressed;
using (Stream tempStream = zf.GetInputStream(ze))
{
msUncompressed = new MemoryStream();
tempStream.CopyTo(msUncompressed);
}
OnDownloadComplete(this, new OSBLEStateEventArgs(true, null, msUncompressed));
return;
}
}
// This means we didn't find a .cpml in the zip
m_currentAssignment = null;
OnDownloadComplete(this, new OSBLEStateEventArgs(false,
"Could not download the specified assignment file"));
}
