/// <summary>
/// Initializes a new instance of the <see cref="Timer"/> class by using
/// the given configuration.
/// </summary>
/// <param name="builder">
/// </param>
public BucketTimer(Builder builder) : base(builder.Config, builder.Context)
{
unit_ = builder.TimeUnit;
measure_unit_ = builder.MeasureUnit;
MetricContext context = builder.Context;
MetricConfig config =
builder
.Config
.WithAdditionalTag("unit", measure_unit_.Name());
count_ = new BucketCounter(config.WithAdditionalTag(kStatistic, kCount),
context);
max_ = new StepMaxGauge(config.WithAdditionalTag(kStatistic, kMax));
min_ = new StepMinGauge(config.WithAdditionalTag(kStatistic, kMin));
// We should not convert the value of the total time, since
// it is already a time the rate reported will be the
// percentage of time that was spent within the defined reporting
// interval.
MetricConfig time_config =
config
.WithAdditionalTag(kStatistic, kTotal)
.WithAdditionalTag("unit", "nounit");
total_time_ = new BucketCounter(time_config, TimeUnit.Ticks, context);
overflow_count_ =
new BucketCounter(
config
.WithAdditionalTag(kStatistic, kCount)
.WithAdditionalTag(kBucket, "bucket=overflow"),
context);
buckets_ = builder.Buckets;
// Compute the size of the maximum bucket name and create a padding
// format to allow lexicographically sort of buckets.
int num_digits = buckets_[buckets_.Length - 1].ToString().Length;
string padding = "".PadLeft(num_digits, '0');
string label = unit_.Abbreviation();
bucket_count_ = new BucketCounter[buckets_.Length];
for (int i = 0; i < buckets_.Length; i++)
{
bucket_count_[i] = new BucketCounter(
config
.WithAdditionalTag(kStatistic, kCount)
.WithAdditionalTag(kBucket,
"bucket={0}{1}".Fmt(buckets_[i].ToString(padding), label)),
context);
}
Func <double, double> convert =
measure => ConvertToUnit(measure, measure_unit_);
var metrics = new List <IMetric> {
total_time_,
new StepMeasureTransformer(min_, convert),
new StepMeasureTransformer(max_, convert),
overflow_count_,
count_
};
metrics.AddRange(bucket_count_);
metrics_ = new ReadOnlyCollection <IMetric>(metrics);
}