65 lines
1.7 KiB
C#
65 lines
1.7 KiB
C#
using Serilog;
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namespace MasstransferCommon.Events;
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/// <summary>
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/// 事件总线
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/// </summary>
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/// <typeparam name="T"></typeparam>
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public abstract class EventBus<T>
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{
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private static readonly Dictionary<EventType, List<Delegate>> Subscribers = new();
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/// <summary>
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/// 添加订阅
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/// </summary>
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/// <param name="type"></param>
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/// <param name="action"></param>
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public static void AddEventHandler(EventType type, Delegate action)
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{
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if (Subscribers.TryGetValue(type, out var subscribers))
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{
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var any = subscribers.Any(item => item.Equals(action));
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if (!any) subscribers.Add(action);
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}
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else
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{
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Subscribers.Add(type, [action]);
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}
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}
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/// <summary>
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/// 移除订阅逻辑
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/// </summary>
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/// <param name="type">事件类型</param>
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/// <param name="action">回调方法</param>
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public static void RemoveEventHandler(EventType type, Delegate action)
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{
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if (!Subscribers.TryGetValue(type, out var handlers)) return;
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handlers.Remove(action);
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}
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/// <summary>
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/// 发布事件
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/// </summary>
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/// <param name="type"></param>
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/// <param name="data"></param>
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public static void Publish(EventType type, T data)
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{
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if (!Subscribers.TryGetValue(type, out var subscribers)) return;
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// 创建一个副本，避免在回调中修改订阅列表导致迭代异常
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var actions = subscribers.ToList();
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foreach (var action in actions)
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try
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{
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action.DynamicInvoke(type, data);
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}
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catch (Exception e)
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{
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Log.Error(e, e.Message);
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}
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}
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} |