public MetricsHelper(IMetrics metrics, CacheMetrics allowedMetrics)
{
MetricsObj = metrics ?? throw new ArgumentNullException(nameof(metrics));
AllowedMetrics = allowedMetrics;
this.MetricsTags = new MetricTags("inst",
typeof(TCacheInstance).Name.Split('.').Last());
}
public void Setup()
{
IEnumerable <MMetricWrapper> dummy = getDummyMetricWrapper();
mockOpr = new Mock <IBusinessOperationQuery <MMetricWrapper> >();
mockOpr.Setup(foo => foo.Apply(null, null)).Returns(dummy);
mockCache = new Mock <CacheMetrics>()
{
CallBase = true
};
cache = mockCache.Object;
cache.SetOperation(mockOpr.Object);
realCache = new CacheMetrics();
}
public static IServiceCollection AddMetricsToDistributedCache <TCacheInstance>(this IServiceCollection services, CacheMetrics allowedMetrics = CacheMetrics.HitRatio | CacheMetrics.AllTime | CacheMetrics.ErrorRatio)
{
services.TryAddSingleton(
new AllowedMetrics <DistributedCacheWithMetrics <TCacheInstance> > {
AllowedCacheMetrics = allowedMetrics
});
if (services.All(d => d.ServiceType != typeof(DistributedCacheOptions <TCacheInstance>)))
{
throw new InvalidOperationException($"Unable to add metrics to distributed cache, because {typeof(DistributedCacheOptions<TCacheInstance>).FullName} not registered. Try to register normal distributed cache first.");
}
if (services.All(d => d.ServiceType != typeof(IMetrics)))
{
throw new InvalidOperationException($"Unable to add metrics to distributed cache, because {typeof(IMetrics).FullName} not registered. Try to register Metrics first.");
}
services.RemoveAll <IDistributedCache <TCacheInstance> >();
services.TryAddSingleton <IDistributedCache <TCacheInstance>, DistributedCacheWithMetrics <TCacheInstance> >();
return(services);
}