protected override async Task RunAsync(CancellationToken cancellationToken)
{
if (this.healthDataService == null)
{
// compose the HealthDataService instance with all the dependencies.
var config = new ServiceConfiguration(this.serviceContext.CodePackageActivationContext, TraceWriter);
var filterRepository = new EntityFilterRepository(config);
var healthClient = new FabricHealthClientWrapper(
TraceWriter,
this.serviceContext.ServiceTypeName,
this.serviceContext.PartitionId,
this.serviceContext.ReplicaId);
var eventWriter = new MonitoringEventWriter();
var metricsEmitter = new MetricsEmitter(config, TraceWriter);
var consumer = new IfxHealthDataConsumer(eventWriter, metricsEmitter);
var producer = new HealthDataProducer(healthClient, consumer, TraceWriter, config, filterRepository);
this.healthDataService = new HealthDataService(producer, TraceWriter, config, filterRepository);
this.TraceInfo("Service.RunAsync: Composed new HealthDataService instance");
}
this.TraceInfo("Service.RunAsync: Invoking HealthDataService.RunAsync");
await this.healthDataService.RunAsync(cancellationToken).ConfigureAwait(false);
}
internal HealthDataService(
HealthDataProducer producer,
TraceWriterWrapper traceWriter,
IServiceConfiguration config,
EntityFilterRepository filterRepository)
{
this.Producer = Guard.IsNotNull(producer, nameof(producer));
this.Trace = Guard.IsNotNull(traceWriter, nameof(traceWriter));
this.Config = Guard.IsNotNull(config, nameof(config));
this.FilterRepository = Guard.IsNotNull(filterRepository, nameof(filterRepository));
}