diff options
Diffstat (limited to 'vendor/go.opentelemetry.io/otel/sdk/metric/internal/x/x.go')
| -rw-r--r-- | vendor/go.opentelemetry.io/otel/sdk/metric/internal/x/x.go | 58 |
1 files changed, 27 insertions, 31 deletions
diff --git a/vendor/go.opentelemetry.io/otel/sdk/metric/internal/x/x.go b/vendor/go.opentelemetry.io/otel/sdk/metric/internal/x/x.go index 8cd2f3741..a98606238 100644 --- a/vendor/go.opentelemetry.io/otel/sdk/metric/internal/x/x.go +++ b/vendor/go.opentelemetry.io/otel/sdk/metric/internal/x/x.go @@ -8,41 +8,26 @@ package x // import "go.opentelemetry.io/otel/sdk/metric/internal/x" import ( + "context" "os" "strconv" - "strings" ) -var ( - // Exemplars is an experimental feature flag that defines if exemplars - // should be recorded for metric data-points. - // - // To enable this feature set the OTEL_GO_X_EXEMPLAR environment variable - // to the case-insensitive string value of "true" (i.e. "True" and "TRUE" - // will also enable this). - Exemplars = newFeature("EXEMPLAR", func(v string) (string, bool) { - if strings.ToLower(v) == "true" { - return v, true - } - return "", false - }) - - // CardinalityLimit is an experimental feature flag that defines if - // cardinality limits should be applied to the recorded metric data-points. - // - // To enable this feature set the OTEL_GO_X_CARDINALITY_LIMIT environment - // variable to the integer limit value you want to use. - // - // Setting OTEL_GO_X_CARDINALITY_LIMIT to a value less than or equal to 0 - // will disable the cardinality limits. - CardinalityLimit = newFeature("CARDINALITY_LIMIT", func(v string) (int, bool) { - n, err := strconv.Atoi(v) - if err != nil { - return 0, false - } - return n, true - }) -) +// CardinalityLimit is an experimental feature flag that defines if +// cardinality limits should be applied to the recorded metric data-points. +// +// To enable this feature set the OTEL_GO_X_CARDINALITY_LIMIT environment +// variable to the integer limit value you want to use. +// +// Setting OTEL_GO_X_CARDINALITY_LIMIT to a value less than or equal to 0 +// will disable the cardinality limits. +var CardinalityLimit = newFeature("CARDINALITY_LIMIT", func(v string) (int, bool) { + n, err := strconv.Atoi(v) + if err != nil { + return 0, false + } + return n, true +}) // Feature is an experimental feature control flag. It provides a uniform way // to interact with these feature flags and parse their values. @@ -83,3 +68,14 @@ func (f Feature[T]) Enabled() bool { _, ok := f.Lookup() return ok } + +// EnabledInstrument informs whether the instrument is enabled. +// +// EnabledInstrument interface is implemented by synchronous instruments. +type EnabledInstrument interface { + // Enabled returns whether the instrument will process measurements for the given context. + // + // This function can be used in places where measuring an instrument + // would result in computationally expensive operations. + Enabled(context.Context) bool +} |