public static void Build(FetcherTaskToken token)
{
var jsonVideoInfo = NetworkHelper.GetTextFromUri(token.ToUri());
if (jsonVideoInfo.Length > 100)
{
var videoInfo = JsonConvert.DeserializeObject <VideoInfo>(jsonVideoInfo);
VideoTask newTask = GetVideoTask(token, videoInfo);
var settings = Data.ApplicationSettings.GetInstance();
settings.Dispatcher.Invoke(delegate
{
Data.FetchingTasks.AddTask(newTask);
});
var task = new Task(() => { GetDownloadUrl(newTask); });
// TODO: 改用后台进程/进程池实现
task.Start();
}
else
{
var errorMsg = JsonConvert.DeserializeObject <ServerSideException>(jsonVideoInfo);
Data.NotificationData.AddErrorNotifiction(errorMsg);
}
}
/// <summary>
/// 由av号和起始，结束分段号建立批量任务
/// </summary>
/// <param name="aid">av号</param>
/// <param name="start">开始分段，从1开始，小于1时，将会从第一个分段开始</param>
/// <param name="end">结束分段，大于总分段数时，将从start一直下载到最后一个分段</param>
/// <exception cref="ArgumentOutOfRangeException">分段数不合理时，将引发ArgumentOutOfRangeException</exception>
public static void Build(string aid, int start = 1, int end = int.MaxValue)
{
string json = NetworkHelper.GetTextFromUri(VIDEO_INFO_API + aid + "&page=" + 1);
if (json.Length > 100)
{
var videoInfo = JsonConvert.DeserializeObject <VideoInfo>(json);
if (start > videoInfo.pages)
{
throw new ArgumentOutOfRangeException("页面范围无效");
//Data.NotificationData.AddErrorNotifiction("页面范围无效!");
//return;
}
// 当start小于1时，取1作为起始分段
start = Math.Max(start, 1);
// 当end大于总分段数时，取总分段数作为结束分段
end = Math.Min(end, videoInfo.pages);
var aids = new FetcherTaskToken[end - start + 1];
int j = 0;
for (int i = start; i <= end; i++)
{
aids[j++] = new FetcherTaskToken(aid, i);
}
Parallel.ForEach(aids, (i) => { Build(i); });
}
else
{
var errorMsg = JsonConvert.DeserializeObject <ServerSideException>(json);
throw errorMsg;
//Data.NotificationData.AddErrorNotifiction(errorMsg);
}
}
public static void CreateTask(FetcherTaskToken token)
{
Task.Run(() => TaskBuilder.Build(token));
Data.NotificationData.AddNotifiction(NotificationLevel.Info, $"任务aid{token.Aid}已开始解析! 请稍等.");
//new Thread(delegate ()
//{
// TaskBuilder.Build(token);
//}).Start();
}
private static VideoTask GetVideoTask(FetcherTaskToken token, VideoInfo videoInfo)
{
var newTask = new VideoTask(token)
{
VideoInfo = videoInfo,
State = FetchState.Waiting,
Name = videoInfo.title,
Partname = videoInfo.partname,
DownloadUrl = new List <string>(),
Danmu = "http://comment.bilibili.com/" + videoInfo.cid + ".xml"
};
return(newTask);
}
public NewTaskRequestEventArgs(FetcherTaskToken token)
{
this.Token = token;
}
public bool Equals(FetcherTaskToken other)
{
return(this.Aid.Equals(other.Aid) && this.PartIndex.Equals(other.PartIndex));
}