public BaseExportingMetricReader(BaseExporter <Metric> exporter)
{
Guard.Null(exporter, nameof(exporter));
this.exporter = exporter;
var exportorType = exporter.GetType();
var attributes = exportorType.GetCustomAttributes(typeof(AggregationTemporalityAttribute), true);
if (attributes.Length > 0)
{
var attr = (AggregationTemporalityAttribute)attributes[attributes.Length - 1];
this.PreferredAggregationTemporality = attr.Preferred;
this.SupportedAggregationTemporality = attr.Supported;
}
attributes = exportorType.GetCustomAttributes(typeof(ExportModesAttribute), true);
if (attributes.Length > 0)
{
var attr = (ExportModesAttribute)attributes[attributes.Length - 1];
this.supportedExportModes = attr.Supported;
}
if (exporter is IPullMetricExporter pullExporter)
{
if (this.supportedExportModes.HasFlag(ExportModes.Push))
{
pullExporter.Collect = this.Collect;
}
else
{
pullExporter.Collect = (timeoutMilliseconds) =>
{
using (PullMetricScope.Begin())
{
return(this.Collect(timeoutMilliseconds));
}
};
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="BaseExportingMetricReader"/> class.
/// </summary>
/// <param name="exporter">Exporter instance to export Metrics to.</param>
public BaseExportingMetricReader(BaseExporter <Metric> exporter)
{
Guard.ThrowIfNull(exporter);
this.exporter = exporter;
var exportorType = exporter.GetType();
var attributes = exportorType.GetCustomAttributes(typeof(ExportModesAttribute), true);
if (attributes.Length > 0)
{
var attr = (ExportModesAttribute)attributes[attributes.Length - 1];
this.supportedExportModes = attr.Supported;
}
if (exporter is IPullMetricExporter pullExporter)
{
if (this.supportedExportModes.HasFlag(ExportModes.Push))
{
pullExporter.Collect = this.Collect;
}
else
{
pullExporter.Collect = (timeoutMilliseconds) =>
{
using (PullMetricScope.Begin())
{
return(this.Collect(timeoutMilliseconds));
}
};
}
}
this.exportCalledMessage = $"{nameof(BaseExportingMetricReader)} calling {this.Exporter}.{nameof(this.Exporter.Export)} method.";
this.exportSucceededMessage = $"{this.Exporter}.{nameof(this.Exporter.Export)} succeeded.";
this.exportFailedMessage = $"{this.Exporter}.{nameof(this.Exporter.Export)} failed.";
}