github.com/true-sqn/fabric@v2.1.1+incompatible/core/operations/metrics.go (about)

     1  /*
     2  Copyright IBM Corp. All Rights Reserved.
     3  
     4  SPDX-License-Identifier: Apache-2.0
     5  */
     6  
     7  package operations
     8  
     9  import (
    10  	"sync"
    11  
    12  	"github.com/hyperledger/fabric/common/metrics"
    13  	"github.com/hyperledger/fabric/common/metrics/prometheus"
    14  )
    15  
    16  var (
    17  	fabricVersion = metrics.GaugeOpts{
    18  		Name:         "fabric_version",
    19  		Help:         "The active version of Fabric.",
    20  		LabelNames:   []string{"version"},
    21  		StatsdFormat: "%{#fqname}.%{version}",
    22  	}
    23  
    24  	gaugeLock        sync.Mutex
    25  	promVersionGauge metrics.Gauge
    26  )
    27  
    28  func versionGauge(provider metrics.Provider) metrics.Gauge {
    29  	switch provider.(type) {
    30  	case *prometheus.Provider:
    31  		gaugeLock.Lock()
    32  		defer gaugeLock.Unlock()
    33  		if promVersionGauge == nil {
    34  			promVersionGauge = provider.NewGauge(fabricVersion)
    35  		}
    36  		return promVersionGauge
    37  
    38  	default:
    39  		return provider.NewGauge(fabricVersion)
    40  	}
    41  }