/
option.go
56 lines (48 loc) · 1.12 KB
/
option.go
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package kafka
import (
"context"
)
type config struct {
ctx context.Context
serviceName string
analyticsRate float64
}
// An Option customizes the config.
type Option func(cfg *config)
func newConfig(opts ...Option) *config {
cfg := &config{
serviceName: "kafka",
ctx: context.Background(),
// analyticsRate: globalconfig.AnalyticsRate(),
}
for _, opt := range opts {
opt(cfg)
}
return cfg
}
// WithContext sets the config context to ctx.
func WithContext(ctx context.Context) Option {
return func(cfg *config) {
cfg.ctx = ctx
}
}
// WithServiceName sets the config service name to serviceName.
func WithServiceName(serviceName string) Option {
return func(cfg *config) {
cfg.serviceName = serviceName
}
}
// WithAnalytics enables Trace Analytics for all started spans.
func WithAnalytics(on bool) Option {
if on {
return WithAnalyticsRate(1.0)
}
return WithAnalyticsRate(0.0)
}
// WithAnalyticsRate sets the sampling rate for Trace Analytics events
// correlated to started spans.
func WithAnalyticsRate(rate float64) Option {
return func(cfg *config) {
cfg.analyticsRate = rate
}
}