string IDictionary <string, string> .this[string key]
{
get => this[key];
set
{
var transformedName = _options.TagNameTransformer(key);
var transformedValue = _options.TagValueTransformer(key, value);
this[transformedName] = transformedValue;
SyncFrozen();
}
}
public void Constructor_CanOverrideDefaultTags()
{
var options = new MetricSourceOptions();
options.DefaultTags.Clear();
options.DefaultTags[StringTag.Name] = "default_value";
// create a metric and make sure the tags on its readings
// do not have the default tag value
var source = new MetricSource(options);
var metric = CreateTaggedMetric(source, StringTag);
UpdateMetric(metric, "value");
var readings = metric.GetReadings(DateTime.UtcNow).ToList();
Assert.NotEmpty(readings);
var reading = readings[0];
Assert.Collection(
reading.Tags,
tag =>
{
var transformedKey = options.TagNameTransformer(StringTag.Name);
var transformedValue = options.TagValueTransformer(transformedKey, "value");
Assert.Equal(transformedKey, tag.Key);
Assert.Equal(transformedValue, tag.Value);
});
}
public void GetReadings_HasDefaultTags()
{
var options = new MetricSourceOptions
{
DefaultTags =
{
["host"] = Environment.MachineName
}
};
var source = new MetricSource(options);
var metric = CreateMetric(source);
UpdateMetric(metric);
var readings = metric.GetReadings(DateTime.UtcNow).ToList();
Assert.NotEmpty(readings);
var reading = readings[0];
Assert.Collection(
reading.Tags,
tag =>
{
var transformedKey = options.TagNameTransformer("host");
var transformedValue = options.TagValueTransformer(transformedKey, Environment.MachineName);
Assert.Equal(transformedKey, tag.Key);
Assert.Equal(transformedValue, tag.Value);
});
}
