private async Task <string> Serialize(
IEnumerable <MetricsDataValueSource> dataValueSource,
double sampleRate = 1.0)
{
var settings = new MetricsStatsDOptions
{
DefaultSampleRate = sampleRate,
MetricNameFormatter = new DefaultDogStatsDMetricStringSerializer()
};
var serializer = new MetricSnapshotSerializer();
var fields = new MetricFields();
await using (var ms = new MemoryStream())
{
await using (var packer =
new MetricSnapshotStatsDStringWriter(
ms,
new StatsDPointSampler(settings),
settings))
{
foreach (var source in dataValueSource)
{
serializer.Serialize(packer, source, fields);
}
}
return(Encoding.UTF8.GetString(ms.ToArray()));
}
}
/// <summary>
/// Add the <see cref="MetricsStatsDStringOutputFormatter" /> allowing metrics to optionally be reported to Datadog
/// </summary>
/// <param name="metricFormattingBuilder">
/// The <see cref="IMetricsOutputFormattingBuilder" /> used to configure Datadog formatting
/// options.
/// </param>
/// <param name="options">The Datadog formatting options to use.</param>
/// <param name="fields">The metric fields to report as well as their names.</param>
/// <returns>
/// An <see cref="IMetricsBuilder" /> that can be used to further configure App Metrics.
/// </returns>
public static IMetricsBuilder AsStatsDString(
this IMetricsOutputFormattingBuilder metricFormattingBuilder,
MetricsStatsDOptions options,
MetricFields fields = null)
{
if (metricFormattingBuilder == null)
{
throw new ArgumentNullException(nameof(metricFormattingBuilder));
}
var formatter = new MetricsStatsDStringOutputFormatter(options, fields);
return(metricFormattingBuilder.Using(formatter, false));
}
public async Task Can_format_CHUNKED_DogStatsD_payload_with_multiple_fields_correctly()
{
// Arrange
var timestamp = new DateTime(2017, 1, 1, 1, 1, 1, DateTimeKind.Utc);
var metricsData = CreateSource(timestamp, 4);
var options = new MetricsStatsDOptions
{
MetricNameFormatter = new DefaultDogStatsDMetricStringSerializer()
};
var formatter = new MetricsStatsDStringOutputFormatter(options);
// Act
var chunks = await formatter.WriteAsync(metricsData, 30, CancellationToken.None);
// Assert
chunks.Count.Should().Be(4);
chunks.All(x => !x.EndsWith("\n")).Should()
.BeTrue("All metrics in this sample should be transmitted in their own packet.");
}
public MetricsReportingStatsDOptions()
{
SocketSettings = new SocketSettings();
SocketPolicy = new SocketPolicy();
StatsDOptions = new MetricsStatsDOptions();
}
public string Write(MetricsStatsDOptions options) => _metricStringSerializer.Serialize(this, options);
public StatsDPointSampler(MetricsStatsDOptions options)
{
_options = options;
}
