55 lines
1.8 KiB
C#
55 lines
1.8 KiB
C#
using MAX.Notification;
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using Prism.Ioc;
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namespace Store.Management.Notifications;
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/// <summary>保存示例处理结果，由发布方等待完成后读取。</summary>
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public sealed class NotificationExampleState
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{
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private readonly object gate = new();
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private readonly List<string> entries = [];
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public void Record(string message)
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{
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lock (gate)
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{
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entries.Add(message);
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if (entries.Count > 10) entries.RemoveAt(0);
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}
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}
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public string GetHistory()
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{
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lock (gate) return string.Join(Environment.NewLine, entries);
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}
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}
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/// <summary>模拟模块一：商品保存后刷新缓存。</summary>
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public sealed class ProductCacheHandler(NotificationExampleState state)
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: INotificationHandler<ProductSavedNotification>
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{
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public Task Handle(ProductSavedNotification notification, CancellationToken cancellationToken)
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{
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cancellationToken.ThrowIfCancellationRequested();
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state.Record($"缓存模块：已刷新商品「{notification.ProductName}」。");
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return Task.CompletedTask;
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}
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}
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/// <summary>模拟模块二：异步记录操作日志。</summary>
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public sealed class ProductAuditHandler(NotificationExampleState state)
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: INotificationHandler<ProductSavedNotification>
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{
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public async Task Handle(ProductSavedNotification notification, CancellationToken cancellationToken)
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{
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await Task.Delay(200, cancellationToken).ConfigureAwait(false);
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state.Record($"审计模块：已记录商品「{notification.ProductName}」的保存操作。");
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}
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}
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/// <summary>将标准服务解析转交给当前 Prism 容器。</summary>
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internal sealed class PrismNotificationServiceProvider(IContainerProvider container) : IServiceProvider
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{
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public object? GetService(Type serviceType) => container.Resolve(serviceType);
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}
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