private void StartDownload()
{
if (this.IsCancelled())
{
return;
}
this.localFileName = this.ComposeLocalFilename();
if (!this.UseCaching)
{
this.TriggerWebClientDownloadFileAsync();
return;
}
this.TotalBytesToReceive = -1;
WebHeaderCollection headers = this.GetHttpHeaders(this.fileSource);
if (headers != null)
{
this.TotalBytesToReceive = headers.GetContentLength();
}
if (this.TotalBytesToReceive == -1)
{
this.TotalBytesToReceive = 0;
this.TriggerWebClientDownloadFileAsync();
}
else
{
this.ResumeDownload(headers);
}
}
private void StartDownload()
{
if (IsCancelled())
{
return;
}
logger.Debug("FileDownloader attempt {0} of {1}.", attemptNumber, MaxAttempts);
localFileName = ComposeLocalFilename();
if (!UseCaching)
{
TriggerWebClientDownloadFileAsync();
return;
}
TotalBytesToReceive = -1;
WebHeaderCollection headers = GetHttpHeaders(fileSource);
if (headers != null)
{
TotalBytesToReceive = headers.GetContentLength();
}
if (TotalBytesToReceive == -1)
{
TotalBytesToReceive = 0;
logger.Warn("Received no Content-Length header from server for {0}. Cache is not used, Resume is not supported", fileSource);
TriggerWebClientDownloadFileAsync();
}
else
{
ResumeDownload(headers);
}
}
