public DownloadTaskStatistics GetDownloadTaskStatistics()
{
double downloadRate = 0;
bool isDownloadFinished = Count != 0;
long remainingTransfer = 0;
long transferedDownload = 0;
DateTime?downloadFinishDate = null;
for (int i = 0; i < Count; i++)
{
ISegmentDownloadTask segmentDownloadTask = this[i];
ISegmentDownloaderInfo segmentDownloaderInfo = segmentDownloadTask.SegmentDownloaderInfo;
downloadRate += segmentDownloaderInfo.DownloadRate.GetValueOrDefault(0);
remainingTransfer += segmentDownloaderInfo.RemainingTransfer;
transferedDownload += segmentDownloaderInfo.TransferedDownload;
if (!segmentDownloaderInfo.IsDownloadFinished)
{
isDownloadFinished = false;
}
else
{
if (downloadFinishDate.HasValue)
{
downloadFinishDate = downloadFinishDate > segmentDownloaderInfo.DownloadFinishDate ? downloadFinishDate : segmentDownloaderInfo.DownloadFinishDate;
}
else
{
downloadFinishDate = segmentDownloaderInfo.DownloadFinishDate;
}
}
}
TimeSpan remainingTime = Math.Abs(downloadRate) < 0.001D ? TimeSpan.MaxValue : TimeSpan.FromSeconds(remainingTransfer / downloadRate);
return(new DownloadTaskStatistics
{
DownloadRate = downloadRate,
IsDownloadFinished = isDownloadFinished,
DownloadFinishDate = downloadFinishDate,
RemainingTransfer = remainingTransfer,
RemainingTime = remainingTime,
TransferedDownload = transferedDownload,
Segments = new SegmentDownloaderInfoCollection(this.Select(x => x.SegmentDownloaderInfo))
});
}
private void UpdateSegmentsWithoutInsert(SegmentDownloaderInfoCollection segmentDownloaderInfoCollection)
{
for (int i = 0; i < segmentDownloaderInfoCollection.Count; i++)
{
ISegmentDownloaderInfo segmentDownloaderInfo = segmentDownloaderInfoCollection[i];
ListViewItem listViewItem = lvwDownloadTaskSegments.Items[i];
listViewItem.SubItems[0].Text = string.Format("{0:0.##}%", segmentDownloaderInfo.DownloadProgress);
listViewItem.SubItems[1].Text = ByteFormatter.ToString(segmentDownloaderInfo.TransferedDownload);
listViewItem.SubItems[2].Text = ByteFormatter.ToString(segmentDownloaderInfo.EndPosition - segmentDownloaderInfo.StartPosition);
listViewItem.SubItems[3].Text = ByteFormatter.ToString(segmentDownloaderInfo.StartPosition);
listViewItem.SubItems[4].Text = ByteFormatter.ToString(segmentDownloaderInfo.EndPosition);
listViewItem.SubItems[5].Text = string.Format("{0:0.##}", segmentDownloaderInfo.DownloadRate / 1024.0);
listViewItem.SubItems[6].Text = TimeSpanFormatter.ToString(segmentDownloaderInfo.RemainingTime);
listViewItem.SubItems[7].Text = segmentDownloaderInfo.LastException != null?string.Format(CultureInfo.CurrentCulture, "{0}, {1}", segmentDownloaderInfo.State, segmentDownloaderInfo.LastException.Message) : segmentDownloaderInfo.State.ToString();
listViewItem.SubItems[8].Text = segmentDownloaderInfo.Uri.OriginalString;
}
}
private void UpdateSegmentsInserting(ListViewItem newSelection, SegmentDownloaderInfoCollection segmentDownloaderInfoCollection)
{
m_LastDownloadTaskSelection = newSelection;
lvwDownloadTaskSegments.Items.Clear();
for (int i = 0; i < segmentDownloaderInfoCollection.Count; i++)
{
ListViewItem item = new ListViewItem();
ISegmentDownloaderInfo segmentDownloaderInfo = segmentDownloaderInfoCollection[i];
item.Text = string.Format("{0:0.##}%", segmentDownloaderInfo.DownloadProgress);
item.SubItems.Add(ByteFormatter.ToString(segmentDownloaderInfo.TransferedDownload));
item.SubItems.Add(ByteFormatter.ToString(segmentDownloaderInfo.EndPosition - segmentDownloaderInfo.StartPosition));
item.SubItems.Add(ByteFormatter.ToString(segmentDownloaderInfo.StartPosition));
item.SubItems.Add(ByteFormatter.ToString(segmentDownloaderInfo.EndPosition));
item.SubItems.Add(string.Format("{0:0.##}", segmentDownloaderInfo.DownloadRate / 1024.0));
item.SubItems.Add(TimeSpanFormatter.ToString(segmentDownloaderInfo.RemainingTime));
item.SubItems.Add(segmentDownloaderInfo.State.ToString());
item.SubItems.Add(segmentDownloaderInfo.Uri.OriginalString);
lvwDownloadTaskSegments.Items.Add(item);
}
}
