123 lines
3.1 KiB
C#
123 lines
3.1 KiB
C#
using Aitex.Core.RT.Log;
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using Aitex.Core.Util;
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using Aitex.Core.RT.DataCenter;
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namespace Aitex.Core.RT.DataCollection.HighPerformance
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{
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/// <summary>
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/// 数据收集器对象，用于收集在<see cref="DataManager"/>中注册的数据源的数据。
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/// </summary>
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public class DataBuffer<T> : IDataBuffer
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{
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#region Variables
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private readonly Dictionary<long, string> _buffer = new ();
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private readonly R_TRIG _rTrigReadFailed = new ();
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#endregion
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#region Constructors
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public DataBuffer(int index, string name, Func<object> read)
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{
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Index = index;
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Name = name;
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Read = read;
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}
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#endregion
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#region Properties
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/// <summary>
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/// 返回数据获取器的序号。
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/// </summary>
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public int Index { get; }
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/// <summary>
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/// 返回数据获取器名称。
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/// </summary>
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public string Name { get; }
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public Type ValueType => typeof(T);
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/// <summary>
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/// 返回数据获取器。
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/// </summary>
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public Func<object> Read{ get; }
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/// <summary>
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/// 返回缓存数据的长度。
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/// </summary>
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internal int CacheCount => _buffer.Count;
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#endregion
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#region Methods
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private string ReadAndFormatValue()
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{
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try
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{
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var value = (T)Read.Invoke();
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return DataTraceHelper.Format(value);
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}
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catch (Exception ex)
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{
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Debug.Assert(false, $"Unable to cache data [{Name}], {ex.Message}");
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return "'0'";
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}
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}
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/// <summary>
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/// 缓存数据。
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/// </summary>
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/// <param name="timestamp"></param>
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public void Cache(long timestamp)
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{
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try
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{
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_buffer[timestamp] = ReadAndFormatValue();
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_rTrigReadFailed.CLK = false;
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}
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catch (Exception ex)
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{
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// 首次发生错误时记录日志。
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_rTrigReadFailed.CLK = true;
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if(_rTrigReadFailed.Q)
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LOG.Error($"数据获取器 {Name} 在 {timestamp} 时发生错误。", ex);
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_buffer[timestamp] = string.Empty;
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}
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}
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/// <summary>
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/// 获取指定时间戳的数据。
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/// </summary>
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/// <param name="timestamp">时间戳。</param>
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/// <returns></returns>
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public string Get(long timestamp)
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{
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if (_buffer.TryGetValue(timestamp, out var value))
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{
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_buffer.Remove(timestamp);
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return value;
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}
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else
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{
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return default;
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}
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}
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public override string ToString()
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{
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return $"[{Index}] {Name}, {ValueType.Name}";
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}
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#endregion
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}
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}
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