Task Self moniter

最新推荐文章于 2021-05-11 11:29:11 发布

原创最新推荐文章于 2021-05-11 11:29:11 发布 · 405 阅读

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本文介绍了一个使用C#实现的图片质量检查程序，该程序能够从数据库中获取待检查的图片信息，并通过异步任务实时显示剩余待处理数量。图片质量检查包括尺寸和像素点数，依据检查结果更新数据库中的隐藏标记。

public class Program
{
readonly static object lockobj = new object();
static void Main(string[] args)
{
log4net.Config.XmlConfigurator.Configure();

int c = 0;
var makeIds = new List<int>();
using (var db = new food_data_prod_imageQualityEntities())
{
makeIds = db.Make.Where(m => m.IsHide == false && m.UserId != -1).Select(m => m.Id).ToList();
}
var allC = makeIds.Count();

var task = new Task(() =>
{
while (c < allC)
{
Console.WriteLine("Left:" + (allC - c));
Task.Delay(1000).Wait();
}
}, TaskCreationOptions.LongRunning);

task.Start();

foreach (var id in makeIds)
{
using (var db = new food_data_prod_imageQualityEntities())
{
var make = db.Make.First(m => m.Id == id);

var imageUrl = make.ImageUrl;

var hideFlag = CheckQualityToHide(GetImageInfo, imageUrl, id).Result;

make.IsHideByImageQuality = hideFlag;

db.SaveChanges();
lock (lockobj)
{
c = c + 1;
}
}

}
}

public static async Task<bool?> CheckQualityToHide(Func<string, Tuple<int, int, int>> getImageInfo, string imageUrl, int id)
{
log4net.ILog log = log4net.LogManager.GetLogger("logger-name");

try
{
var imageInfo = getImageInfo(imageUrl);

if (imageInfo.Item1 > 1 && imageInfo.Item2 > 1 && imageInfo.Item3 > 10)
{
return false;
}
else
{
return true;
}
}
catch (Exception ex)
{
log.Error("Id:" + id + ",Ex:" + ex);
return null;
}
}

public static Tuple<int, int, int> GetImageInfo(string imageUrl)
{
using (var client = new WebClient())
{
var dataResult = client.OpenRead(imageUrl);
Image pic = Image.FromStream(dataResult);

var width = pic.Width;
var height = pic.Height;
return new Tuple<int, int, int>(width, height, width * height);
}

}
}