public void ExportHangfireStatistics_PublishesToPrometheus()
{
var expectedStatistics = new StatisticsDto()
{
Failed = 1,
Deleted = 2,
Enqueued = 3,
Processing = 4,
Recurring = 5,
Scheduled = 6,
Succeeded = 7
};
var expectedRetrySet = new HashSet <string> {
"job1", "job2", "job3"
};
_mockMonitoringApi.Setup(x => x.GetStatistics()).Returns(expectedStatistics);
_mockStorageConnection.Setup(x => x.GetAllItemsFromSet("retries")).Returns(expectedRetrySet);
_exporter.ExportHangfireStatistics();
var prometheusContent = GetPrometheusContent();
ExpectedMetricStrings(expectedStatistics, expectedRetrySet)
.ForEach(ms => prometheusContent.Should().Contain(ms));
}
public void MetricsShouldNotGetUpdatedOnExceptionWhenSettingDisabled()
{
_settings.FailScrapeOnException = false;
HangfireJobStatistics hangfireJobStatistics = _autoFixture.Create <HangfireJobStatistics>();
PerformMetricsTest(hangfireJobStatistics);
_mockHangfireMonitor.Setup(x => x.GetJobStatistics()).Throws(new Exception());
_classUnderTest.ExportHangfireStatistics();
VerifyPrometheusMetrics(hangfireJobStatistics);
hangfireJobStatistics = _autoFixture.Create <HangfireJobStatistics>();
PerformMetricsTest(hangfireJobStatistics);
_mockHangfireMonitor.Verify(x => x.GetJobStatistics(), Times.Exactly(3));
}
public static IApplicationBuilder UsePrometheusHangfireExporter(this IApplicationBuilder app)
{
var jobStorage = (JobStorage)app.ApplicationServices.GetService(typeof(JobStorage));
var metrics = (IMetricService)app.ApplicationServices.GetService(typeof(IMetricService));
var exporter = new HangfirePrometheusExporter(jobStorage, metrics);
Metrics.DefaultRegistry.AddBeforeCollectCallback(() => exporter.ExportHangfireStatistics());
return(app);
}
/// <summary>
/// Initializes Prometheus Hangfire Exporter using current Hangfire job storage and default metrics registry.
/// </summary>
/// <param name="app">IApplicationBuilder instance</param>
/// <returns>Provided instance of IApplicationBuilder</returns>
public static IApplicationBuilder UsePrometheusHangfireExporter(this IApplicationBuilder app, HangfirePrometheusSettings settings = null)
{
settings = settings ?? new HangfirePrometheusSettings();
JobStorage js = (JobStorage)app.ApplicationServices.GetService(typeof(JobStorage));
if (js != null)
{
IHangfireMonitorService hangfireMonitor = new HangfireMonitorService(js);
IPrometheusExporter exporter = new HangfirePrometheusExporter(hangfireMonitor, settings);
Metrics.DefaultRegistry.AddBeforeCollectCallback(() => exporter.ExportHangfireStatistics());
}
return(app);
}
public static IAppBuilder UsePrometheusHangfireExporter(this IAppBuilder app, HangfirePrometheusSettings settings = null)
{
settings = settings ?? new HangfirePrometheusSettings();
try
{
JobStorage js = JobStorage.Current;
if (js != null)
{
IHangfireMonitorService hangfireMonitor = new HangfireMonitorService(js);
IPrometheusExporter exporter = new HangfirePrometheusExporter(hangfireMonitor, settings);
Metrics.DefaultRegistry.AddBeforeCollectCallback(() => exporter.ExportHangfireStatistics());
}
}
catch (Exception)
{
return(app);
}
return(app);
}
