github.com/facebookincubator/go-belt@v0.0.0-20230703220935-39cd348f1a38/tool/experimental/metrics/implementation/prometheus/option.go (about)

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    12  
    13  package prometheus
    14  
    15  // Option is an optional argument to function New, that changes the behavior of the metrics handler.
    16  type Option interface {
    17  	apply(*config)
    18  }
    19  
    20  type options []Option
    21  
    22  func (s options) Config() config {
    23  	var cfg config
    24  	for _, opt := range s {
    25  		opt.apply(&cfg)
    26  	}
    27  	return cfg
    28  }
    29  
    30  type config struct {
    31  	DisableLabels bool
    32  }
    33  
    34  // OptionDisableLabels disables the labels (tags) and makes all the metrics flat.
    35  // Attempts to get a metrics with the same key but different tags will result into
    36  // getting the same metric. And all the metrics will be registered without labels.
    37  type OptionDisableLabels bool
    38  
    39  func (opt OptionDisableLabels) apply(cfg *config) {
    40  	cfg.DisableLabels = bool(opt)
    41  }