Files
tasks/common/metrics/otel_options.go
Alex ShtinandGitHub 8e8f1b0f7c Remove license header from every file (#7689)
## What changed?
<!-- Describe what has changed in this PR -->
Remove license header from every file. Because it is really hard to
follow in this PR here is the summary:
1. License header is removed from all `.go` and `.proto` files
:fireworks::fireworks:🎆.
2. `LICENSE` file in the root directory has only Temporal and Uber
copyrights.
3. 5 other `LICENSE` files added to the packages which have copyrights
different from Temporal and Uber: Datadog, Xargin, "Mat Ryer, Tyler
Bunnell and contributors".
4. `license_file` flag is removed from all code generation tools.
5. `copyright_file` flag is removed from `go:generate mockgen`
directive.
6. All copyright related targets are removed from `Makefile`.
7. Updated Temporal copyright year to 2025 everywhere.

## Why?
<!-- Tell your future self why have you made these changes -->
I double checked with legal department that it is not needed to have
license header in every file. One file per repo is enough. I put all
copyrights to the root `LICENSE` file and removed header from all other
files. Also updated tools and `Makefile`.
2025-05-01 18:50:21 -07:00

55 lines
1.9 KiB
Go

package metrics
import (
"go.opentelemetry.io/otel/metric"
)
type (
// optionSet represents a slice of metric options. We need it to be able to add options of the
// [metric.InstrumentOption] type to slices which may be of any other type implemented by metric.InstrumentOption.
// Normally, you could do something like `T metric.InstrumentOption` here, but the type dependency here is reversed.
// We need a generic type T that is implemented *by* metric.InstrumentOption, not the other way around.
// This is the only solution which avoids duplicating all the logic of the addOptions function without relying on
// reflection, an error-prone type assertion, or a type switch with a runtime error for unhandled cases.
optionSet[T any] interface {
addOption(option metric.InstrumentOption) T
}
counterOptions []metric.Int64CounterOption
gaugeOptions []metric.Float64ObservableGaugeOption
float64HistogramOptions []metric.Float64HistogramOption
int64HistogramOptions []metric.Int64HistogramOption
)
func addOptions[T optionSet[T]](omp *otelMetricsHandler, opts T, metricName string) T {
metricDef, ok := omp.catalog.getMetric(metricName)
if !ok {
return opts
}
if description := metricDef.description; description != "" {
opts = opts.addOption(metric.WithDescription(description))
}
if unit := metricDef.unit; unit != "" {
opts = opts.addOption(metric.WithUnit(string(unit)))
}
return opts
}
func (opts counterOptions) addOption(option metric.InstrumentOption) counterOptions {
return append(opts, option)
}
func (opts gaugeOptions) addOption(option metric.InstrumentOption) gaugeOptions {
return append(opts, option)
}
func (opts float64HistogramOptions) addOption(option metric.InstrumentOption) float64HistogramOptions {
return append(opts, option)
}
func (opts int64HistogramOptions) addOption(option metric.InstrumentOption) int64HistogramOptions {
return append(opts, option)
}