75 lines
2.2 KiB
C#
75 lines
2.2 KiB
C#
using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.Hosting;
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using Microsoft.Extensions.Logging;
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using Orleans.Configuration;
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using Orleans.Runtime;
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using Orleans.Streams;
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using StackExchange.Redis;
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var builder = new HostBuilder()
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.UseOrleans(silo =>
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{
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silo.UseLocalhostClustering();
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silo.Services.AddSingleton<IConnectionMultiplexer>(sp =>
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{
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return ConnectionMultiplexer.Connect("localhost");
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});
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silo.ConfigureLogging(logging => logging.AddConsole());
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silo.AddMemoryGrainStorage("PubSubStore");
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silo.AddPersistentStreams("RedisStream", Provider.RedisStreamFactory.Create, null);
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silo.AddMemoryGrainStorageAsDefault();
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}).UseConsoleLifetime();
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builder.ConfigureServices(services =>
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{
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services.AddOptions<HashRingStreamQueueMapperOptions>("RedisStream")
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.Configure(options =>
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{
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options.TotalQueueCount = 8;
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});
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services.AddOptions<SimpleQueueCacheOptions>("RedisStream");
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});
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using IHost host = builder.Build();
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await host.RunAsync();
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[ImplicitStreamSubscription("numbergenerator")]
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public class NumberGeneratorGrain : Grain, INumberGeneratorGrain, IAsyncObserver<int>
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{
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private ILogger<NumberGeneratorGrain> _logger { get; }
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public NumberGeneratorGrain(ILogger<NumberGeneratorGrain> logger)
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{
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_logger = logger;
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}
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public override async Task OnActivateAsync(CancellationToken ct)
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{
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var streamProvider = this.GetStreamProvider("RedisStream");
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var streamId = StreamId.Create("numbergenerator", this.GetPrimaryKeyString());
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var stream = streamProvider.GetStream<int>(streamId);
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await stream.SubscribeAsync(this);
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await base.OnActivateAsync(ct);
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}
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public Task OnCompletedAsync()
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{
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return Task.CompletedTask;
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}
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public Task OnErrorAsync(Exception ex)
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{
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_logger.LogError("Error: {Error}", ex.Message);
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return Task.CompletedTask;
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}
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public async Task OnNextAsync(int item, StreamSequenceToken? token = null)
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{
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_logger.LogInformation("Received number {Number}", item);
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await Task.Delay(2000);
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}
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}
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public interface INumberGeneratorGrain : IGrainWithStringKey { }
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