private void calcSize()
{
this.workers = new List<Worker>();
HttpWebResponse res = HttpUtil.getInstance().get(url, 0, SysConfig.DOWNLOAD_UNIT);
HttpStatusCode status = res.StatusCode;
res.GetResponseStream().Close();
res.Close();
if (status == HttpStatusCode.OK)
{
Worker worker = new Worker(this, new DownloadRange(0, size - 1));
worker.onWorkerStatusChanged += this.OnWorkerStatusChanged;
this.size = res.ContentLength;
workers.Add(worker);
}
else if (status == HttpStatusCode.PartialContent)
{
string contentRange = res.Headers["Content-Range"];
int lenIndex = contentRange.LastIndexOf('/');
string lenStr = contentRange.Substring(lenIndex + 1, contentRange.Length - 1 - lenIndex);// = contentRange.Substring();//bytes 0-100/12690720
this.size = Int32.Parse(lenStr);
List<DownloadRange> ranges = DownloadRange.splitRange(0, size, SysConfig.WORKERS_NUM);
foreach (DownloadRange range in ranges)
{
Worker worker = new Worker(this, range);
worker.onWorkerStatusChanged += this.OnWorkerStatusChanged;
workers.Add(worker);
Console.WriteLine(range.from + "," + range.to);
}
}
else
{
throw new Exception("error http status:" + status);
}
}
public void rebootWorker(Worker worker)
{
worker.doWork();
}