public void Configure()
{
_rabbitMqEndpoint.Initialize();
var commandsExchangeName = RabbitMqExchangeNamesFactory.GetIntegrationCommandsExchangeName(_integrationName);
var eventsExchangeName = RabbitMqExchangeNamesFactory.GetIntegrationEventsExchangeName(_integrationName);
_rabbitMqEndpoint.DeclareExchange(commandsExchangeName);
_rabbitMqEndpoint.DeclareExchange(eventsExchangeName);
var subscriptions = new MessageSubscriptionsRegistry()
.Handle <ReadBlockCommand>(o =>
{
o.WithHandler <ReadBlockCommandsHandler>();
})
.AddFilter(new AppInsightTelemetryMessageFilter());
_rabbitMqEndpoint.Subscribe(
subscriptions,
commandsExchangeName,
$"bil-v2.bcn-{_integrationName}",
messageConsumersCount: _rabbitMqSettings.MessageConsumersCount,
messageProcessorsCount: _rabbitMqSettings.MessageProcessorsCount,
defaultFirstLevelRetryTimeout: _rabbitMqSettings.DefaultFirstLevelRetryTimeout,
maxFirstLevelRetryMessageAge: _rabbitMqSettings.MaxFirstLevelRetryMessageAge,
maxFirstLevelRetryCount: _rabbitMqSettings.MaxFirstLevelRetryCount,
firstLevelRetryQueueCapacity: _rabbitMqSettings.FirstLevelRetryQueueCapacity,
processingQueueCapacity: _rabbitMqSettings.ProcessingQueueCapacity,
replyExchangeName: eventsExchangeName);
_rabbitMqEndpoint.StartListening();
}
private static void RegisterIrreversibleBlocksRetrievingStrategy <TAppSettings>(
IServiceCollection services,
BlocksReaderServiceOptions <TAppSettings> options,
IReloadingManager <TAppSettings> settings)
where TAppSettings : IBlocksReaderSettings <BaseBlocksReaderDbSettings, BaseBlocksReaderRabbitMqSettings>
{
var kebabIntegrationName = options.IntegrationName.CamelToKebab();
var eventsExchangeName = RabbitMqExchangeNamesFactory.GetIntegrationEventsExchangeName(kebabIntegrationName);
switch (options.IrreversibleBlockRetrievingStrategy)
{
case IrreversibleBlockRetrievingStrategy.NotSupported:
break;
case IrreversibleBlockRetrievingStrategy.Pulling:
services.AddSingleton <IIrreversibleBlockMonitor>(s =>
new IrreversibleBlockMonitor(
s.GetRequiredService <ILogFactory>(),
s.GetRequiredService <IIrreversibleBlockProvider>(),
s.GetRequiredService <IIrreversibleBlockListener>(),
settings.CurrentValue.LastIrreversibleBlockMonitoringPeriod));
services.AddTransient <IIrreversibleBlockListener>(s =>
new IrreversibleBlockListener(
() => s.GetRequiredService <IRabbitMqEndpoint>().CreatePublisher(eventsExchangeName)));
services.AddTransient(s =>
options.IrreversibleBlockProviderFactory(new ServiceFactoryContext <TAppSettings>(s, settings)));
break;
case IrreversibleBlockRetrievingStrategy.Pushing:
services.AddTransient <IIrreversibleBlockListener>(s =>
new IrreversibleBlockListener(
() => s.GetRequiredService <IRabbitMqEndpoint>().CreatePublisher(eventsExchangeName)));
break;
default:
throw new ArgumentOutOfRangeException(nameof(options.IrreversibleBlockRetrievingStrategy), options.IrreversibleBlockRetrievingStrategy, "Unknown strategy");
}
}
public void Initialize()
{
_endpoint.Initialize();
foreach (var integrationName in _integrationNames)
{
_log.Info($"Initializing RabbitMq endpoint for the blockchain integration {integrationName}...");
var kebabIntegrationName = integrationName.CamelToKebab();
var commandsExchangeName = RabbitMqExchangeNamesFactory.GetIntegrationCommandsExchangeName(kebabIntegrationName);
var eventsExchangeName = RabbitMqExchangeNamesFactory.GetIntegrationEventsExchangeName(kebabIntegrationName);
_endpoint.DeclareExchange(commandsExchangeName);
_endpoint.DeclareExchange(eventsExchangeName);
var subscriptions = new MessageSubscriptionsRegistry()
.Handle <BlockHeaderReadEvent, string>(o =>
{
o.WithHandler <IBlockEventsHandler>();
o.WithState(integrationName);
})
.Handle <BlockNotFoundEvent, string>(o =>
{
o.WithHandler <IBlockEventsHandler>();
o.WithState(integrationName);
})
.Handle <TransferAmountTransactionsBatchEvent, string>(o =>
{
o.WithHandler <IBlockEventsHandler>();
o.WithState(integrationName);
})
.Handle <TransferCoinsTransactionsBatchEvent, string>(o =>
{
o.WithHandler <IBlockEventsHandler>();
o.WithState(integrationName);
})
.Handle <LastIrreversibleBlockUpdatedEvent, string>(o =>
{
o.WithHandler <IBlockEventsHandler>();
o.WithState(integrationName);
});
foreach (var filter in _messageFilters)
{
subscriptions.AddFilter(filter);
}
_endpoint.Subscribe
(
subscriptions,
eventsExchangeName,
$"bil-v2.{_clientName}",
_defaultFirstLevelRetryTimeout,
_maxFirstLevelRetryMessageAge,
_maxFirstLevelRetryCount,
_firstLevelRetryQueueCapacity,
_processingQueueCapacity,
_messageConsumersCount,
_messageProcessorsCount
);
}
}