github.com/gogf/gf/v2@v2.7.4/os/gmetric/gmetric_meter.go (about)

     1  // Copyright GoFrame gf Author(https://goframe.org). All Rights Reserved.
     2  //
     3  // This Source Code Form is subject to the terms of the MIT License.
     4  // If a copy of the MIT was not distributed with this file,
     5  // You can obtain one at https://github.com/gogf/gf.
     6  
     7  package gmetric
     8  
     9  // localMeter for Meter implements.
    10  type localMeter struct {
    11  	MeterOption
    12  }
    13  
    14  // MeterOption holds the creation option for a Meter.
    15  type MeterOption struct {
    16  	// Instrument is the instrumentation name to bind this Metric to a global MeterProvider.
    17  	// This is an optional configuration for a metric.
    18  	Instrument string
    19  
    20  	// InstrumentVersion is the instrumentation version to bind this Metric to a global MeterProvider.
    21  	// This is an optional configuration for a metric.
    22  	InstrumentVersion string
    23  
    24  	// Attributes holds the constant key-value pair description metadata for all metrics of Meter.
    25  	// This is an optional configuration for a meter.
    26  	Attributes Attributes
    27  }
    28  
    29  // newMeter creates and returns a Meter implementer.
    30  func newMeter(option MeterOption) Meter {
    31  	return &localMeter{
    32  		MeterOption: option,
    33  	}
    34  }
    35  
    36  // Performer creates and returns the Performer of the Meter.
    37  func (meter *localMeter) Performer() MeterPerformer {
    38  	if globalProvider == nil {
    39  		return nil
    40  	}
    41  	return globalProvider.MeterPerformer(meter.MeterOption)
    42  }