/// <summary>
/// Instantiates the base class.
/// </summary>
protected MetricBase(string name, string unit, string description, MetricSourceOptions options, ImmutableDictionary <string, string> tags = null)
{
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
name = options.MetricNameTransformer(name);
if (!options.MetricNameValidator(name))
{
throw new ArgumentException(name + " is not a valid metric name.", nameof(name));
}
var tagBuilder = options.DefaultTagsFrozen.ToBuilder();
if (tags != null)
{
foreach (var tag in tags)
{
tagBuilder[tag.Key] = tag.Value;
}
}
Name = name;
Unit = unit;
Description = description;
Tags = tagBuilder.ToImmutable();
}
/// <summary>
/// Used by derived classes to pass the name, description and unit for a tag.
/// </summary>
protected TaggedMetricFactory(string name, string description, string unit, MetricSourceOptions options)
{
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
name = options.MetricNameTransformer(name);
if (!options.MetricNameValidator(name))
{
throw new ArgumentException(name + " is not a valid metric name.", nameof(name));
}
Name = name;
Description = description;
Unit = unit;
Options = options;
}
