github.com/yacovm/fabric@v2.0.0-alpha.0.20191128145320-c5d4087dc723+incompatible/common/flogging/metrics/observer.go (about)

     1  /*
     2  Copyright IBM Corp. All Rights Reserved.
     3  
     4  SPDX-License-Identifier: Apache-2.0
     5  */
     6  
     7  package metrics
     8  
     9  import (
    10  	"github.com/hyperledger/fabric/common/metrics"
    11  	"go.uber.org/zap/zapcore"
    12  )
    13  
    14  var (
    15  	CheckedCountOpts = metrics.CounterOpts{
    16  		Namespace:    "logging",
    17  		Name:         "entries_checked",
    18  		Help:         "Number of log entries checked against the active logging level",
    19  		LabelNames:   []string{"level"},
    20  		StatsdFormat: "%{#fqname}.%{level}",
    21  	}
    22  
    23  	WriteCountOpts = metrics.CounterOpts{
    24  		Namespace:    "logging",
    25  		Name:         "entries_written",
    26  		Help:         "Number of log entries that are written",
    27  		LabelNames:   []string{"level"},
    28  		StatsdFormat: "%{#fqname}.%{level}",
    29  	}
    30  )
    31  
    32  type Observer struct {
    33  	CheckedCounter metrics.Counter
    34  	WrittenCounter metrics.Counter
    35  }
    36  
    37  func NewObserver(provider metrics.Provider) *Observer {
    38  	return &Observer{
    39  		CheckedCounter: provider.NewCounter(CheckedCountOpts),
    40  		WrittenCounter: provider.NewCounter(WriteCountOpts),
    41  	}
    42  }
    43  
    44  func (m *Observer) Check(e zapcore.Entry, ce *zapcore.CheckedEntry) {
    45  	m.CheckedCounter.With("level", e.Level.String()).Add(1)
    46  }
    47  
    48  func (m *Observer) WriteEntry(e zapcore.Entry, fields []zapcore.Field) {
    49  	m.WrittenCounter.With("level", e.Level.String()).Add(1)
    50  }