static void client_DownloadDataCompleted(object sender, System.Net.DownloadDataCompletedEventArgs e)
{
System.Threading.AutoResetEvent waiter = (System.Threading.AutoResetEvent)e.UserState;
string downloadChecksum = null;
BlobsAPI blobsAPI = new BlobsAPI();
try
{
// Get the content type
string contentType = ((BlobWebClient)sender).ResponseHeaders["Content-Type"];
// If the request was not canceled and did not throw any exception or errors
if (!e.Cancelled && e.Error == null)
{
byte[] data = (byte[])e.Result;
if (String.Compare(((BlobWebClient)sender).BlobChecksumAlgorithm, "crc32", true) == 0)
downloadChecksum = ChecksumUtil.ComputeCRC32(data);
else if (String.Compare(((BlobWebClient)sender).BlobChecksumAlgorithm, "md5", true) == 0)
downloadChecksum = ChecksumUtil.ComputeMD5(data);
if (String.Compare(downloadChecksum, ((BlobWebClient)sender).BlobChecksum, true) != 0)
{
// download complete, but corrupt
// We should retry
blobsAPI.SetBlobStatus(((BlobWebClient)sender).BlobID, (int)Blob.eStatus.CORRUPT);
((BlobWebClient)sender).ErrorCount++;
RetryDownload((BlobWebClient)sender);
}
else
{
//download complete and successful
blobsAPI.StoreBlobData(((BlobWebClient)sender).BlobID, contentType, data);
downloadClients.Remove(((BlobWebClient)sender).BlobID);
}
}
else if (e.Cancelled)
{
//download cancelled
//blobsAPI.SetBlobStatus(((BlobWebClient)sender).BlobID, (int)Blob.eStatus.CANCELLED);
downloadClients.Remove(((BlobWebClient)sender).BlobID);
}
else if (!e.Cancelled && e.Error != null)
{
//downloadHashTable[blobID] = BlobsAPI.eBlobStatus.FAILED; //download failed
//blobsAPI.SetBlobStatus(((BlobWebClient)sender).BlobID, (int)Blob.eStatus.FAILED);
((BlobWebClient)sender).ErrorCount++;
//RetryDownload((BlobWebClient)sender);
}
}
catch (System.Net.WebException webEx)
{
blobsAPI.SetBlobStatus(((BlobWebClient)sender).BlobID, (int)Blob.eStatus.FAILED);
((BlobWebClient)sender).ErrorCount++;
RetryDownload((BlobWebClient)sender);
throw webEx;
}
catch (Exception ex)
{
//blobsAPI.SetBlobStatus(((BlobWebClient)sender).BlobID, (int)Blob.eStatus.FAILED);
((BlobWebClient)sender).ErrorCount++;
//RetryDownload((BlobWebClient)sender);
throw new Exception("Exception thrown uploading binary data to ESS", ex);
}
finally
{
// Let the main application thread resume.
waiter.Set();
}
}
static void client_DownloadProgressChanged(object sender, System.Net.DownloadProgressChangedEventArgs e)
{
System.Threading.AutoResetEvent waiter = (System.Threading.AutoResetEvent)e.UserState;
try
{
long blobID = ((BlobWebClient)sender).BlobID;
if (((BlobWebClient)sender).BlobStatus != (int) Blob.eStatus.DOWNLOADING)
{
BlobsAPI blobsAPI = new BlobsAPI();
//blobsAPI.SetBlobStatus(blobID, (int)Blob.eStatus.DOWNLOADING);
}
}
finally
{
waiter.Set();
}
}
