public MetricsEntryResult RunMetricsCheck(string text, string metricName)
{
if (text == null)
{
throw new ArgumentNullException(nameof(text), "Text cannot be null");
}
if (metricName == null)
{
throw new ArgumentNullException(nameof(metricName), "Metric name cannot be null");
}
MetricCaller mc = _options.Value.Callers.Single(metric => metric.Name == metricName);
if (mc == null)
{
throw new ArgumentNullException(nameof(metricName), $"There is no metric with such name: {metricName}");
}
MetricsEntryResult metricsEntryResult = null;
using (IServiceScope scope = _scopeFactory.CreateScope())
{
metricsEntryResult = RunCheck(scope, mc, text);
}
if (metricsEntryResult == null)
{
throw new ArgumentNullException(nameof(metricsEntryResult), "Metric must return MetricEntryResult");
}
return(metricsEntryResult);
}
public IMetricsBuilder AddMetrics <T>(string name) where T : IMetric
{
if (name == null)
{
throw new ArgumentNullException(nameof(name), "Name cannot be null");
}
MetricCaller mr = new MetricCaller(name, service => ActivatorUtilities.GetServiceOrCreateInstance <T>(service));
return(AddMetrics(mr));
}
private MetricsEntryResult RunCheck(IServiceScope scope, MetricCaller caller, string text)
{
IMetric metric = caller.Factory(scope.ServiceProvider);
if (text == null)
{
throw new ArgumentNullException($"{nameof(text)}", "Stream argument should be provided");
}
MetricsEntryResult result = metric.CheckMetric(text);
return(result);
}
public IMetricsBuilder AddMetrics(MetricCaller caller)
{
if (caller == null)
{
throw new ArgumentNullException(nameof(caller), "Caller object cannot be null");
}
_services.Configure <MetricsServiceOptions>(options =>
{
options.Callers.Add(caller);
});
return(this);
}