public MetricPusher(string endpoint, string job, string instance = null, long intervalMilliseconds = 1000, IEnumerable <Tuple <string, string> > additionalLabels = null, CollectorRegistry registry = null) : base(registry)
{
if (string.IsNullOrEmpty(endpoint))
{
throw new ArgumentNullException("endpoint");
}
if (string.IsNullOrEmpty(job))
{
throw new ArgumentNullException("job");
}
if (intervalMilliseconds <= 0)
{
throw new ArgumentException("Interval must be greater than zero", "intervalMilliseconds");
}
StringBuilder sb = new StringBuilder(string.Format("{0}/job/{1}", endpoint.TrimEnd('/'), job));
if (!string.IsNullOrEmpty(instance))
{
sb.AppendFormat("/instance/{0}", instance);
}
if (additionalLabels != null)
{
foreach (var pair in additionalLabels)
{
if (pair == null || string.IsNullOrEmpty(pair.Item1) || string.IsNullOrEmpty(pair.Item2))
{
throw new NotSupportedException($"Invalid {nameof(MetricPusher)} additional label: ({pair?.Item1}):({pair?.Item2})");
}
sb.AppendFormat("/{0}/{1}", pair.Item1, pair.Item2);
}
}
if (!Uri.TryCreate(sb.ToString(), UriKind.Absolute, out _targetUrl))
{
throw new ArgumentException("Endpoint must be a valid url", "endpoint");
}
_pushInterval = TimeSpan.FromMilliseconds(intervalMilliseconds);
}
protected MetricHandler(CollectorRegistry registry = null)
{
_registry = registry ?? Metrics.DefaultRegistry;
}
public Handler(CollectorRegistry registry)
{
_registry = registry;
}
public MetricServer(string hostname, int port, string url = "metrics/", CollectorRegistry registry = null, bool useHttps = false) : base(registry)
{
var s = useHttps ? "s" : "";
_httpListener.Prefixes.Add($"http{s}://{hostname}:{port}/{url}");
}
internal MetricFactory(CollectorRegistry registry)
{
_registry = registry ?? throw new ArgumentNullException(nameof(registry));
}
public MetricServer(int port, string url = "metrics/", CollectorRegistry registry = null, bool useHttps = false) : this("+", port, url, registry, useHttps)
{
}
/// <summary>
/// Registers the .NET metrics in the specified registry.
/// </summary>
public static void Register(CollectorRegistry registry)
{
var instance = new DotNetStats(registry);
registry.AddBeforeCollectCallback(instance.UpdateMetrics);
}
public KestrelMetricServer(string hostname, int port, string url = "/metrics", CollectorRegistry registry = null, X509Certificate2 certificate = null) : base(registry)
{
_hostname = hostname;
_port = port;
_url = url;
_certificate = certificate;
}
public KestrelMetricServer(int port, string url = "/metrics", CollectorRegistry registry = null, X509Certificate2 certificate = null) : this("+", port, url, registry, certificate)
{
}
/// <summary>
/// Starts a Prometheus metrics exporter. The default URL is /metrics, which is a Prometheus convention.
/// Use static methods on the <see cref="Metrics"/> class to create your metrics.
/// </summary>
public static IApplicationBuilder UseMetricServer(this IApplicationBuilder builder, string url = "/metrics", CollectorRegistry registry = null)
{
// If there is a URL to map, map it and re-enter without the URL.
if (url != null)
{
return(builder.Map(url, builder2 => builder2.UseMetricServer(null, registry)));
}
return(builder.UseMiddleware <MetricServerMiddleware>(new MetricServerMiddleware.Settings
{
Registry = registry
}));
}