public void TestAddOtlpExporter_SetsCorrectMetricReaderDefaults()
{
if (Environment.Version.Major == 3)
{
// Adding the OtlpExporter creates a GrpcChannel.
// This switch must be set before creating a GrpcChannel when calling an insecure HTTP/2 endpoint.
// See: https://docs.microsoft.com/aspnet/core/grpc/troubleshoot#call-insecure-grpc-services-with-net-core-client
AppContext.SetSwitch("System.Net.Http.SocketsHttpHandler.Http2UnencryptedSupport", true);
}
var meterProvider = Sdk.CreateMeterProviderBuilder()
.AddOtlpExporter()
.Build();
CheckMetricReaderDefaults();
meterProvider.Dispose();
meterProvider = Sdk.CreateMeterProviderBuilder()
.AddOtlpExporter((exporterOptions, metricReaderOptions) =>
{
metricReaderOptions.PeriodicExportingMetricReaderOptions = null;
})
.Build();
CheckMetricReaderDefaults();
meterProvider.Dispose();
void CheckMetricReaderDefaults()
{
var bindingFlags = System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance;
var metricReader = typeof(MetricReader)
.Assembly
.GetType("OpenTelemetry.Metrics.MeterProviderSdk")
.GetField("reader", bindingFlags)
.GetValue(meterProvider) as PeriodicExportingMetricReader;
Assert.NotNull(metricReader);
var exportIntervalMilliseconds = (int)typeof(PeriodicExportingMetricReader)
.GetField("ExportIntervalMilliseconds", bindingFlags)
.GetValue(metricReader);
Assert.Equal(60000, exportIntervalMilliseconds);
}
}
/// <summary>add MagicOnion Telemetry.</summary>
public static IServiceCollection AddMagicOnionOpenTelemetry(this IServiceCollection services,
MagicOnionOpenTelemetryOptions options,
Action <MagicOnionOpenTelemetryOptions, MagicOnionOpenTelemetryMeterFactoryOption> configureMeterProvider,
Action <MagicOnionOpenTelemetryOptions, IServiceProvider, TracerProviderBuilder> configureTracerProvider)
{
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
services.AddSingleton(options);
// configure MeterFactory
if (configureMeterProvider != null)
{
var meterFactoryOption = new MagicOnionOpenTelemetryMeterFactoryOption();
configureMeterProvider(options, meterFactoryOption);
MeterProvider.SetDefault(Sdk.CreateMeterProviderBuilder()
.SetProcessor(meterFactoryOption.MetricProcessor)
.SetExporter(meterFactoryOption.MetricExporter)
.SetPushInterval(meterFactoryOption.MetricPushInterval)
.Build());
services.AddSingleton(meterFactoryOption.MetricExporter);
services.AddSingleton(MeterProvider.Default);
}
// configure TracerFactory
if (configureTracerProvider != null)
{
if (string.IsNullOrEmpty(options.ActivitySourceName))
{
throw new NullReferenceException(nameof(options.ActivitySourceName));
}
var tracerFactory = services.AddOpenTelemetryTracerProvider((provider, builder) =>
{
// ActivitySourceName must match to TracerName.
builder.AddSource(options.ActivitySourceName);
configureTracerProvider(options, provider, builder);
});
services.AddSingleton(tracerFactory);
services.AddSingleton(new ActivitySource(options.ActivitySourceName));
}
return(services);
}
public async Task PrometheusExporterMiddlewareIntegration_MeterProvider()
{
using MeterProvider meterProvider = Sdk.CreateMeterProviderBuilder()
.AddMeter(MeterName)
.AddPrometheusExporter()
.Build();
await RunPrometheusExporterMiddlewareIntegrationTest(
"/metrics",
app => app.UseOpenTelemetryPrometheusScrapingEndpoint(
meterProvider: meterProvider,
predicate: null,
path: null,
configureBranchedPipeline: null),
registerMeterProvider : false).ConfigureAwait(false);
}
internal static object Run(int port)
{
/* prometheus.yml
*
* global:
* scrape_interval: 1s
* evaluation_interval: 1s
*
* scrape_configs:
* - job_name: "opentelemetry"
* static_configs:
* - targets: ["localhost:9184"]
*/
using var meterProvider = Sdk.CreateMeterProviderBuilder()
.AddMeter(MyMeter.Name)
.AddPrometheusExporter(opt =>
{
opt.StartHttpListener = true;
opt.HttpListenerPrefixes = new string[] { $"http://localhost:{port}/" };
})
.Build();
var process = Process.GetCurrentProcess();
MyMeter.CreateObservableCounter("thread.cpu_time", () => GetThreadCpuTime(process), "ms");
using var token = new CancellationTokenSource();
Task.Run(() =>
{
while (!token.IsCancellationRequested)
{
Counter.Add(9.9, new("name", "apple"), new("color", "red"));
Counter.Add(99.9, new("name", "lemon"), new("color", "yellow"));
MyHistogram.Record(ThreadLocalRandom.Value.Next(1, 1500), new("tag1", "value1"), new("tag2", "value2"));
Task.Delay(10).Wait();
}
});
System.Console.WriteLine($"PrometheusExporter is listening on http://localhost:{port}/metrics/");
System.Console.WriteLine($"Press any key to exit...");
System.Console.ReadKey();
token.Cancel();
return(null);
}
public void MeterProvider_SetDefault()
{
var meterProvider = Sdk.CreateMeterProviderBuilder().Build();
MeterProvider.SetDefault(meterProvider);
var defaultMeter = MeterProvider.Default.GetMeter(string.Empty);
Assert.NotNull(defaultMeter);
Assert.IsType <MeterSdk>(defaultMeter);
Assert.NotSame(defaultMeter, MeterProvider.Default.GetMeter("named meter"));
var counter = defaultMeter.CreateDoubleCounter("ctr");
Assert.IsType <DoubleCounterMetricSdk>(counter);
}
public void Setup()
{
this.meter = new Meter(Utils.GetCurrentMethodName());
var exportedItems = new List <Metric>();
var reader = new PeriodicExportingMetricReader(new InMemoryExporter <Metric>(exportedItems), 1000)
{
Temporality = this.AggregationTemporality,
};
this.provider = Sdk.CreateMeterProviderBuilder()
.AddMeter(this.meter.Name) // All instruments from this meter are enabled.
.AddReader(reader)
.Build();
this.counter = this.meter.CreateCounter <long>("counter");
}
public void GaugeDoubleSubnormal()
{
var buffer = new byte[85000];
var metrics = new List <Metric>();
using var meter = new Meter(Utils.GetCurrentMethodName());
using var provider = Sdk.CreateMeterProviderBuilder()
.AddMeter(meter.Name)
.AddInMemoryExporter(metrics)
.Build();
meter.CreateObservableGauge("test_gauge", () => new List <Measurement <double> >
{
new(double.NegativeInfinity, new("x", "1"), new("y", "2")),
new(double.PositiveInfinity, new("x", "3"), new("y", "4")),
new(double.NaN, new("x", "5"), new("y", "6")),
});
public void SetupSdkProviderWithNoReader(bool hasViews)
{
// This test ensures that MeterProviderSdk can be set up without any reader
using var meter = new Meter($"{Utils.GetCurrentMethodName()}.{hasViews}");
var meterProviderBuilder = Sdk.CreateMeterProviderBuilder()
.AddMeter(meter.Name);
if (hasViews)
{
meterProviderBuilder.AddView("counter", "renamedCounter");
}
using var meterProvider = meterProviderBuilder.Build();
var counter = meter.CreateCounter <long>("counter");
counter.Add(10, new KeyValuePair <string, object>("key", "value"));
}
public void ObserverCallbackExceptionTest()
{
using var meter = new Meter("ObserverCallbackErrorTest");
var exportedItems = new List <Metric>();
using var meterProvider = Sdk.CreateMeterProviderBuilder()
.AddMeter(meter.Name)
.AddInMemoryExporter(exportedItems)
.Build();
var measurement = new Measurement <int>(100, new("name", "apple"), new("color", "red"));
meter.CreateObservableGauge("myGauge", () => measurement);
meter.CreateObservableGauge <long>("myBadGauge", observeValues: () => throw new Exception("gauge read error"));
meterProvider.ForceFlush(MaxTimeToAllowForFlush);
Assert.Equal(2, exportedItems.Count);
var metric = exportedItems[0];
Assert.Equal("myGauge", metric.Name);
List <MetricPoint> metricPoints = new List <MetricPoint>();
foreach (ref var mp in metric.GetMetricPoints())
{
metricPoints.Add(mp);
}
Assert.Single(metricPoints);
var metricPoint = metricPoints[0];
Assert.Equal(100, metricPoint.LongValue);
Assert.NotNull(metricPoint.Keys);
Assert.NotNull(metricPoint.Values);
metric = exportedItems[1];
Assert.Equal("myBadGauge", metric.Name);
metricPoints.Clear();
foreach (ref var mp in metric.GetMetricPoints())
{
metricPoints.Add(mp);
}
Assert.Empty(metricPoints);
}
public void DuplicateInstrumentNamesFromDifferentMetersAreAllowed(AggregationTemporality temporality, bool hasView)
{
var metricItems = new List <Metric>();
var metricExporter = new InMemoryExporter <Metric>(metricItems);
var metricReader = new BaseExportingMetricReader(metricExporter)
{
PreferredAggregationTemporality = temporality,
};
using var meter1 = new Meter($"{Utils.GetCurrentMethodName()}.1.{temporality}");
using var meter2 = new Meter($"{Utils.GetCurrentMethodName()}.2.{temporality}");
var meterProviderBuilder = Sdk.CreateMeterProviderBuilder()
.AddMeter(meter1.Name)
.AddMeter(meter2.Name)
.AddReader(metricReader);
if (hasView)
{
meterProviderBuilder.AddView("name1", new MetricStreamConfiguration()
{
Description = "description"
});
}
using var meterProvider = meterProviderBuilder.Build();
// Expecting one metric stream.
var counterLong = meter1.CreateCounter <long>("name1");
counterLong.Add(10);
metricReader.Collect();
Assert.Single(metricItems);
// The following will not be ignored
// as it is the same metric name but different meter.
var anotherCounterSameNameDiffMeter = meter2.CreateCounter <long>("name1");
anotherCounterSameNameDiffMeter.Add(10);
counterLong.Add(10);
metricItems.Clear();
metricReader.Collect();
Assert.Equal(2, metricItems.Count);
}
public void ViewToRenameMetricConditionally()
{
using var meter1 = new Meter($"{Utils.GetCurrentMethodName()}.1");
using var meter2 = new Meter($"{Utils.GetCurrentMethodName()}.2");
var exportedItems = new List <Metric>();
using var meterProvider = Sdk.CreateMeterProviderBuilder()
.AddMeter(meter1.Name)
.AddMeter(meter2.Name)
.AddView((instrument) =>
{
if (instrument.Meter.Name.Equals(meter2.Name, StringComparison.OrdinalIgnoreCase) &&
instrument.Name.Equals("name1", StringComparison.OrdinalIgnoreCase))
{
return(new MetricStreamConfiguration()
{
Name = "name1_Renamed", Description = "new description"
});
}
else
{
return(null);
}
})
.AddInMemoryExporter(exportedItems)
.Build();
// Without views only 1 stream would be
// exported (the 2nd one gets dropped due to
// name conflict). Due to renaming with Views,
// we expect 2 metric streams here.
var counter1 = meter1.CreateCounter <long>("name1", "unit", "original_description");
var counter2 = meter2.CreateCounter <long>("name1", "unit", "original_description");
counter1.Add(10);
counter2.Add(10);
meterProvider.ForceFlush(MaxTimeToAllowForFlush);
Assert.Equal(2, exportedItems.Count);
Assert.Equal("name1", exportedItems[0].Name);
Assert.Equal("name1_Renamed", exportedItems[1].Name);
Assert.Equal("original_description", exportedItems[0].Description);
Assert.Equal("new description", exportedItems[1].Description);
}
public void FlushMetricExporterTest(ExportModes mode)
{
BaseExporter <Metric> exporter = null;
switch (mode)
{
case ExportModes.Push:
exporter = new PushOnlyMetricExporter();
break;
case ExportModes.Pull:
exporter = new PullOnlyMetricExporter();
break;
case ExportModes.Pull | ExportModes.Push:
exporter = new PushPullMetricExporter();
break;
}
var reader = new BaseExportingMetricReader(exporter);
using var meterProvider = Sdk.CreateMeterProviderBuilder()
.AddReader(reader)
.Build();
switch (mode)
{
case ExportModes.Push:
Assert.True(reader.Collect());
Assert.True(meterProvider.ForceFlush());
break;
case ExportModes.Pull:
Assert.False(reader.Collect());
Assert.False(meterProvider.ForceFlush());
Assert.True((exporter as IPullMetricExporter).Collect(-1));
break;
case ExportModes.Pull | ExportModes.Push:
Assert.True(reader.Collect());
Assert.True(meterProvider.ForceFlush());
break;
}
}
public void DuplicateInstrumentNamesFromSameMeterAreNotAllowed(AggregationTemporality temporality, bool hasView)
{
var metricItems = new List <Metric>();
var metricExporter = new InMemoryExporter <Metric>(metricItems);
var metricReader = new BaseExportingMetricReader(metricExporter)
{
PreferredAggregationTemporality = temporality,
};
using var meter = new Meter($"{Utils.GetCurrentMethodName()}.{temporality}");
var meterProviderBuilder = Sdk.CreateMeterProviderBuilder()
.AddMeter(meter.Name)
.AddReader(metricReader);
if (hasView)
{
meterProviderBuilder.AddView("name1", new MetricStreamConfiguration()
{
Description = "description"
});
}
using var meterProvider = meterProviderBuilder.Build();
// Expecting one metric stream.
var counterLong = meter.CreateCounter <long>("name1");
counterLong.Add(10);
metricReader.Collect();
Assert.Single(metricItems);
// The following will be ignored as
// metric of same name exists.
// Metric stream will remain one.
var anotherCounterSameName = meter.CreateCounter <long>("name1");
anotherCounterSameName.Add(10);
counterLong.Add(10);
metricItems.Clear();
metricReader.Collect();
Assert.Single(metricItems);
}
public void MeterProvider_UpdateDefault_CachedTracer()
{
var defaultMeter = MeterProvider.Default.GetMeter(string.Empty);
var noOpCounter = defaultMeter.CreateDoubleCounter("ctr");
Assert.IsType <NoopCounterMetric <double> >(noOpCounter);
var meterProvider = Sdk.CreateMeterProviderBuilder().Build();
MeterProvider.SetDefault(meterProvider);
var counter = defaultMeter.CreateDoubleCounter("ctr");
Assert.IsType <DoubleCounterMetricSdk>(counter);
var newdefaultMeter = MeterProvider.Default.GetMeter(string.Empty);
Assert.NotSame(defaultMeter, newdefaultMeter);
Assert.IsType <MeterSdk>(newdefaultMeter);
}
public static void Main(string[] args)
{
using var meterProvider = Sdk.CreateMeterProviderBuilder()
.AddMeter("MyCompany.MyProduct.MyLibrary")
.AddPrometheusExporter(options => { options.StartHttpListener = true; })
.Build();
Console.WriteLine("Press any key to exit");
while (!Console.KeyAvailable)
{
Thread.Sleep(1000);
MyFruitCounter.Add(1, new("name", "apple"), new("color", "red"));
MyFruitCounter.Add(2, new("name", "lemon"), new("color", "yellow"));
MyFruitCounter.Add(1, new("name", "lemon"), new("color", "yellow"));
MyFruitCounter.Add(2, new("name", "apple"), new("color", "green"));
MyFruitCounter.Add(5, new("name", "apple"), new("color", "red"));
MyFruitCounter.Add(4, new("name", "lemon"), new("color", "yellow"));
}
}
public void UserHttpFactoryCalled()
{
OtlpExporterOptions options = new OtlpExporterOptions();
var defaultFactory = options.HttpClientFactory;
int invocations = 0;
options.Protocol = OtlpExportProtocol.HttpProtobuf;
options.HttpClientFactory = () =>
{
invocations++;
return(defaultFactory());
};
using (var exporter = new OtlpMetricExporter(options))
{
Assert.Equal(1, invocations);
}
using (var provider = Sdk.CreateMeterProviderBuilder()
.AddOtlpExporter(o =>
{
o.Protocol = OtlpExportProtocol.HttpProtobuf;
o.HttpClientFactory = options.HttpClientFactory;
})
.Build())
{
Assert.Equal(2, invocations);
}
options.HttpClientFactory = null;
Assert.Throws <InvalidOperationException>(() =>
{
using var exporter = new OtlpMetricExporter(options);
});
options.HttpClientFactory = () => null;
Assert.Throws <InvalidOperationException>(() =>
{
using var exporter = new OtlpMetricExporter(options);
});
}
public static void Main()
{
for (int i = 0; i < ArraySize; i++)
{
DimensionValues[i] = $"DimValue{i}";
}
using var meterProvider = Sdk.CreateMeterProviderBuilder()
.AddMeter(TestMeter.Name)
.AddPrometheusExporter(options =>
{
options.StartHttpListener = true;
options.HttpListenerPrefixes = new string[] { $"http://localhost:9185/" };
options.ScrapeResponseCacheDurationMilliseconds = 0;
})
.Build();
Stress(prometheusPort: 9184);
}
public void ValidateZeroDimension(MetricType metricType)
{
var metrics = new List <Metric>();
using var meter = new Meter(nameof(ValidateZeroDimension));
using var provider = Sdk.CreateMeterProviderBuilder()
.AddMeter(meter.Name)
.AddInMemoryExporter(metrics)
.Build();
var dataPointType = DataPointType.Aggregation;
string name = null;
if (metricType == MetricType.DoubleSum)
{
name = "TestDoubleCounter";
var doubleCounter = meter.CreateCounter <double>(name);
doubleCounter.Add(123.45);
}
else if (metricType == MetricType.DoubleGauge)
{
name = "TestGauge";
meter.CreateObservableGauge(name, () => 123.45);
dataPointType = DataPointType.Measurement;
}
provider.ForceFlush();
var enumerator = metrics[0].GetMetricPoints().GetEnumerator();
enumerator.MoveNext();
var metricPoint = enumerator.Current;
var metricData = new MetricsData(Version, metrics[0], ref metricPoint);
Assert.Equal(2, metricData.Version);
Assert.Equal(name, metricData.Metrics.First().Name);
Assert.Equal(123.45, metricData.Metrics.First().Value);
Assert.Equal(dataPointType, metricData.Metrics.First().DataPointType);
// Properties will contain _MS.AggregationIntervalMs
Assert.Equal(1, metricData.Properties.Count);
}
public void ObservableInstrumentCallbacksInvokedForEachReaders(bool hasViews)
{
var exportedItems1 = new List <Metric>();
var exportedItems2 = new List <Metric>();
using var meter = new Meter($"{Utils.GetCurrentMethodName()}.{hasViews}");
int callbackInvocationCount = 0;
var gauge = meter.CreateObservableGauge("gauge", () =>
{
callbackInvocationCount++;
return(10 * callbackInvocationCount);
});
var meterProviderBuilder = Sdk.CreateMeterProviderBuilder()
.AddMeter(meter.Name)
.AddInMemoryExporter(exportedItems1)
.AddInMemoryExporter(exportedItems2);
if (hasViews)
{
meterProviderBuilder.AddView("gauge", "renamedGauge");
}
using var meterProvider = meterProviderBuilder.Build();
meterProvider.ForceFlush();
// VALIDATE
Assert.Equal(2, callbackInvocationCount);
Assert.Single(exportedItems1);
Assert.Single(exportedItems2);
if (hasViews)
{
Assert.Equal("renamedGauge", exportedItems1[0].Name);
Assert.Equal("renamedGauge", exportedItems2[0].Name);
}
else
{
Assert.Equal("gauge", exportedItems1[0].Name);
Assert.Equal("gauge", exportedItems2[0].Name);
}
}
public void GlobalSetup()
{
this.meter = new Meter(Utils.GetCurrentMethodName());
this.meterProvider = Sdk.CreateMeterProviderBuilder()
.AddMeter(this.meter.Name)
.AddInMemoryExporter(this.metrics)
.Build();
var counter = this.meter.CreateCounter <long>("counter_name_1", "long", "counter_name_1_description");
counter.Add(18, new("label1", "value1"), new("label2", "value2"));
var gauge = this.meter.CreateObservableGauge("gauge_name_1", () => 18.0D, "long", "gauge_name_1_description");
var histogram = this.meter.CreateHistogram <long>("histogram_name_1", "long", "histogram_name_1_description");
histogram.Record(100, new("label1", "value1"), new("label2", "value2"));
this.meterProvider.ForceFlush();
}
public void InstrumentWithInvalidNameIsIgnoredTest(string instrumentName)
{
var exportedItems = new List <Metric>();
using var meter = new Meter("InstrumentWithInvalidNameIsIgnoredTest");
using var meterProvider = Sdk.CreateMeterProviderBuilder()
.AddMeter(meter.Name)
.AddInMemoryExporter(exportedItems)
.Build();
var counterLong = meter.CreateCounter <long>(instrumentName);
counterLong.Add(10);
meterProvider.ForceFlush(MaxTimeToAllowForFlush);
// instrument should have been ignored
// as its name does not comply with the specification
Assert.Empty(exportedItems);
}
public void ViewConflict_TwoInstruments_ConflictAvoidedBecauseSecondInstrumentIsDropped()
{
var exportedItems = new List <Metric>();
using var meter = new Meter($"{Utils.GetCurrentMethodName()}");
var meterProviderBuilder = Sdk.CreateMeterProviderBuilder()
.AddMeter(meter.Name)
.AddView((instrument) =>
{
if (instrument.Name == "name")
{
return(new MetricStreamConfiguration {
Name = "othername"
});
}
else
{
return(MetricStreamConfiguration.Drop);
}
})
.AddInMemoryExporter(exportedItems);
using var meterProvider = meterProviderBuilder.Build();
var instrument1 = meter.CreateCounter <long>("name");
var instrument2 = meter.CreateCounter <long>("othername");
instrument1.Add(10);
instrument2.Add(20);
meterProvider.ForceFlush(MaxTimeToAllowForFlush);
Assert.Single(exportedItems);
var metric1 = new List <Metric>()
{
exportedItems[0]
};
Assert.Equal("othername", exportedItems[0].Name);
Assert.Equal(10, GetLongSum(metric1));
}
public void ViewToDropSingleInstrumentObservableGauge()
{
using var meter = new Meter(Utils.GetCurrentMethodName());
var exportedItems = new List <Metric>();
using var meterProvider = Sdk.CreateMeterProviderBuilder()
.AddMeter(meter.Name)
.AddView("observableGaugeNotInteresting", MetricStreamConfiguration.Drop)
.AddInMemoryExporter(exportedItems)
.Build();
// Expecting one metric stream.
meter.CreateObservableGauge("observableGaugeNotInteresting", () => { return(10); }, "ms");
meter.CreateObservableGauge("observableGaugeInteresting", () => { return(10); }, "ms");
meterProvider.ForceFlush(MaxTimeToAllowForFlush);
Assert.Single(exportedItems);
var metric = exportedItems[0];
Assert.Equal("observableGaugeInteresting", metric.Name);
}
public void ViewToProduceMultipleStreamsFromInstrument()
{
using var meter = new Meter(Utils.GetCurrentMethodName());
var exportedItems = new List <Metric>();
using var meterProvider = Sdk.CreateMeterProviderBuilder()
.AddMeter(meter.Name)
.AddView("name1", "renamedStream1")
.AddView("name1", "renamedStream2")
.AddInMemoryExporter(exportedItems)
.Build();
// Expecting two metric stream.
var counterLong = meter.CreateCounter <long>("name1");
counterLong.Add(10);
meterProvider.ForceFlush(MaxTimeToAllowForFlush);
Assert.Equal(2, exportedItems.Count);
Assert.Equal("renamedStream1", exportedItems[0].Name);
Assert.Equal("renamedStream2", exportedItems[1].Name);
}
public void ViewToRenameMetric()
{
using var meter = new Meter(Utils.GetCurrentMethodName());
var exportedItems = new List <Metric>();
using var meterProvider = Sdk.CreateMeterProviderBuilder()
.AddMeter(meter.Name)
.AddView("name1", "renamed")
.AddInMemoryExporter(exportedItems)
.Build();
// Expecting one metric stream.
var counterLong = meter.CreateCounter <long>("name1");
counterLong.Add(10);
meterProvider.ForceFlush(MaxTimeToAllowForFlush);
Assert.Single(exportedItems);
var metric = exportedItems[0];
Assert.Equal("renamed", metric.Name);
}
public void ProcessMetricsAreCaptured()
{
var exportedItems = new List <Metric>();
using var meterProvider = Sdk.CreateMeterProviderBuilder()
.AddRuntimeMetrics(options =>
{
options.ProcessEnabled = true;
})
.AddInMemoryExporter(exportedItems)
.Build();
// simple CPU spinning
var spinDuration = DateTime.UtcNow.AddMilliseconds(10);
while (DateTime.UtcNow < spinDuration)
{
}
meterProvider.ForceFlush(MaxTimeToAllowForFlush);
Assert.Equal(4, exportedItems.Count);
var cpuTimeMetric = exportedItems.First(i => i.Name == "process.cpu.time");
var sumReceived = GetDoubleSum(cpuTimeMetric);
Assert.True(sumReceived > 0);
var cpuCountMetric = exportedItems.First(i => i.Name == "process.cpu.count");
Assert.Equal(Environment.ProcessorCount, (int)GetLongSum(cpuCountMetric));
var memoryMetric = exportedItems.First(i => i.Name == "process.memory.usage");
Assert.True(GetLongSum(memoryMetric) > 0);
var virtualMemoryMetric = exportedItems.First(i => i.Name == "process.memory.virtual");
Assert.True(GetLongSum(virtualMemoryMetric) > 0);
}
public static async Task Main(string[] args)
{
using var meterProvider = Sdk.CreateMeterProviderBuilder()
.AddSource("TestMeter")
.AddConsoleExporter()
.Build();
ObservableGauge <long> gauge = MyMeter.CreateObservableGauge <long>(
"Gauge",
() =>
{
var tag1 = new KeyValuePair <string, object>("tag1", "value1");
var tag2 = new KeyValuePair <string, object>("tag2", "value2");
return(new List <Measurement <long> >()
{
new Measurement <long>(RandomGenerator.Next(1, 1000), tag1, tag2),
});
});
await Task.Delay(10000);
}
public void ViewWithNullCustomNameTakesInstrumentName()
{
var exportedItems = new List <Metric>();
using var meter = new Meter("ViewToRenameMetricConditionallyTest");
using var meterProvider = Sdk.CreateMeterProviderBuilder()
.AddMeter(meter.Name)
.AddView((instrument) =>
{
if (instrument.Name.Equals("name1", StringComparison.OrdinalIgnoreCase))
{
// null View name
return(new MetricStreamConfiguration()
{
});
}
else
{
return(null);
}
})
.AddInMemoryExporter(exportedItems)
.Build();
// Expecting one metric stream.
// Since the View name was null, the instrument name was used instead
var counter1 = meter.CreateCounter <long>("name1", "unit", "original_description");
counter1.Add(10);
meterProvider.ForceFlush(MaxTimeToAllowForFlush);
// Expecting one metric stream.
Assert.Single(exportedItems);
var metric = exportedItems[0];
Assert.Equal(counter1.Name, metric.Name);
}
public void ViewWithValidNameConditionally(string viewNewName)
{
using var meter1 = new Meter("ViewToRenameMetricConditionallyTest");
var exportedItems = new List <Metric>();
using var meterProvider = Sdk.CreateMeterProviderBuilder()
.AddMeter(meter1.Name)
.AddView((instrument) =>
{
if (instrument.Meter.Name.Equals(meter1.Name, StringComparison.OrdinalIgnoreCase) &&
instrument.Name.Equals("name1", StringComparison.OrdinalIgnoreCase))
{
// invalid instrument name as per the spec
return(new MetricStreamConfiguration()
{
Name = viewNewName, Description = "new description"
});
}
else
{
return(null);
}
})
.AddInMemoryExporter(exportedItems)
.Build();
// Expecting one metric stream.
var counter1 = meter1.CreateCounter <long>("name1", "unit", "original_description");
counter1.Add(10);
meterProvider.ForceFlush(MaxTimeToAllowForFlush);
// Expecting one metric stream.
Assert.Single(exportedItems);
var metric = exportedItems[0];
Assert.Equal(viewNewName, metric.Name);
}
public void ViewWithInvalidNameIgnoredConditionally(string viewNewName)
{
using var meter1 = new Meter("ViewToRenameMetricConditionallyTest");
var exportedItems = new List <Metric>();
using var meterProvider = Sdk.CreateMeterProviderBuilder()
.AddMeter(meter1.Name)
// since here it's a func, we can't validate the name right away
// so the view is allowed to be added, but upon instrument creation it's going to be ignored.
.AddView((instrument) =>
{
if (instrument.Meter.Name.Equals(meter1.Name, StringComparison.OrdinalIgnoreCase) &&
instrument.Name.Equals("name1", StringComparison.OrdinalIgnoreCase))
{
// invalid instrument name as per the spec
return(new MetricStreamConfiguration()
{
Name = viewNewName, Description = "new description"
});
}
else
{
return(null);
}
})
.AddInMemoryExporter(exportedItems)
.Build();
// Because the MetricStreamName passed is invalid, the view is ignored,
// and default aggregation is used.
var counter1 = meter1.CreateCounter <long>("name1", "unit", "original_description");
counter1.Add(10);
meterProvider.ForceFlush(MaxTimeToAllowForFlush);
Assert.Single(exportedItems);
}
