108 lines
3.7 KiB
C#
108 lines
3.7 KiB
C#
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using System;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Drawing;
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using System.Drawing.Imaging;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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using DH.Commons.Helper;
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namespace DH.Commons.Enums
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{
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public class ImageSaveHelper
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{
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public event Action<DateTime, string> OnImageSaveExceptionRaised;
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//private string baseDirectory = "";
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//public string BaseDirectory
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//{
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// get => baseDirectory;
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// set
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// {
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// baseDirectory = value;
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// if (string.IsNullOrWhiteSpace(baseDirectory) || !Path.IsPathRooted(baseDirectory))
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// {
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// baseDirectory = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Images");
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// }
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// }
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//}
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public bool EnableImageSave { get; set; } = true;
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public ImageSaveHelper() { }
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public ImageSaveHelper(bool enableImageSave = true)
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{
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EnableImageSave = enableImageSave;
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}
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object lockObj = new object();
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////耗时操作从 _taskFactory分配线程
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//public TaskFactory _taskFactory = new TaskFactory(TaskCreationOptions.LongRunning, TaskContinuationOptions.LongRunning);
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readonly ConcurrentQueue<ImageSaveSet> _imageQueue = new ConcurrentQueue<ImageSaveSet>();
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Task _saveTask = null;
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readonly object _saveLock = new object();
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public async void ImageSaveAsync(ImageSaveSet set)
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{
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if (!EnableImageSave)
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return;
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await Task.Run(() =>
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{
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_imageQueue.Enqueue(set);
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lock (_saveLock)
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{
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if (_saveTask == null)
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{
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_saveTask = Task.Run(async () =>
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{
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try
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{
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while (true)
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{
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while (_imageQueue.Count > 0)
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{
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if (_imageQueue.TryDequeue(out ImageSaveSet saveSet))
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{
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if (!Directory.Exists(Path.GetDirectoryName(saveSet.FullName)))
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{
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Directory.CreateDirectory(Path.GetDirectoryName(saveSet.FullName));
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}
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if (saveSet.SaveImage != null)
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{
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saveSet.SaveImage.Save(saveSet.FullName, saveSet.ImageFormat);
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saveSet.SaveImage.Dispose();
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}
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saveSet = null;
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}
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}
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await Task.Delay(2000);
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}
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}
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catch (Exception ex)
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{
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OnImageSaveExceptionRaised?.Invoke(DateTime.Now, $"图片保存异常：{ex.GetExceptionMessage()}");
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}
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});
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}
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}
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});
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}
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}
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public class ImageSaveSet
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{
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public string FullName { get; set; }//带后缀 全路径
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public Bitmap SaveImage { get; set; }
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public ImageFormat ImageFormat { get; set; } = ImageFormat.Jpeg;
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}
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}
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