/// <summary>
/// Gauges is a simple metric type that takes the value from the delegate.
/// It can be used to track the value of performance counter or queue size.
/// </summary>
/// <param name="telemetryClient">Telemetry client to get Gauge from.</param>
/// <param name="name">Name of the gauge.</param>
/// <param name="valueFunc">Callback function to return the gauge value.</param>
public static void Gauge(this TelemetryClient telemetryClient, string name, Func<int> valueFunc)
{
var gauge = new GaugeImplementation(name, telemetryClient.Context, valueFunc);
var configuration = GetConfigurationFromClient(telemetryClient);
configuration.RegisterCounter(gauge);
}
public void CounteResetDoNotSetValueToZero()
{
var value = 10;
var counter = new GaugeImplementation("test", new TelemetryContext(), () => { return(value); });
Assert.AreEqual(10, counter.GetValueAndReset().Value);
Assert.AreEqual(10, counter.GetValueAndReset().Value);
}
public void CounteResetDoNotSetValueToZero()
{
var value = 10;
var counter = new GaugeImplementation("test", new TelemetryContext(), () => { return value; });
Assert.AreEqual(10, counter.GetValueAndReset().Value);
Assert.AreEqual(10, counter.GetValueAndReset().Value);
}
public void GaugeUsesValueFromDelegate()
{
var value = 10;
var counter = new GaugeImplementation("test", new TelemetryContext(), () => { return value; });
Assert.AreEqual(10, counter.GetValueAndReset().Value);
value = 20;
Assert.AreEqual(20, counter.GetValueAndReset().Value);
}
public void GaugeUsesValueFromDelegate()
{
var value = 10;
var counter = new GaugeImplementation("test", new TelemetryContext(), () => { return(value); });
Assert.AreEqual(10, counter.GetValueAndReset().Value);
value = 20;
Assert.AreEqual(20, counter.GetValueAndReset().Value);
}
