public MetricSnapshotTextWriter(
TextWriter textWriter,
string separator = MetricsTextFormatterConstants.OutputFormatting.Separator,
int padding = MetricsTextFormatterConstants.OutputFormatting.Padding,
Func <string, string, string> metricNameFormatter = null)
{
_textWriter = textWriter ?? throw new ArgumentNullException(nameof(textWriter));
_separator = separator;
_padding = padding;
_textPoints = new MetricsTextPoints();
if (metricNameFormatter == null)
{
_metricNameFormatter = (metricContext, metricName) => string.IsNullOrWhiteSpace(metricContext)
? metricName
: $"[{metricContext}] {metricName}";
}
else
{
_metricNameFormatter = metricNameFormatter;
}
}
