github.com/m3db/m3@v1.5.0/src/x/instrument/types.go (about)

     1  // Copyright (c) 2016 Uber Technologies, Inc.
     2  //
     3  // Permission is hereby granted, free of charge, to any person obtaining a copy
     4  // of this software and associated documentation files (the "Software"), to deal
     5  // in the Software without restriction, including without limitation the rights
     6  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     7  // copies of the Software, and to permit persons to whom the Software is
     8  // furnished to do so, subject to the following conditions:
     9  //
    10  // The above copyright notice and this permission notice shall be included in
    11  // all copies or substantial portions of the Software.
    12  //
    13  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    14  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    15  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    16  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    17  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    18  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    19  // THE SOFTWARE.
    20  
    21  // Package instrument implements functions to make instrumenting code,
    22  // including metrics and logging, easier.
    23  package instrument
    24  
    25  import (
    26  	"time"
    27  
    28  	"github.com/opentracing/opentracing-go"
    29  	"github.com/uber-go/tally"
    30  	"go.uber.org/zap"
    31  )
    32  
    33  // Reporter reports metrics about a component.
    34  type Reporter interface {
    35  	// Start starts the reporter.
    36  	Start() error
    37  	// Stop stops the reporter.
    38  	Stop() error
    39  }
    40  
    41  // Profiler represents profiler for profiling long-running tasks.
    42  type Profiler interface {
    43  	// StartCPUProfile starts the named cpu profile.
    44  	StartCPUProfile(name string) error
    45  
    46  	// StopCPUProfile stops started cpu profile.
    47  	StopCPUProfile() error
    48  
    49  	// WriteHeapProfile writes heap profile.
    50  	WriteHeapProfile(name string) error
    51  }
    52  
    53  // Options represents the options for instrumentation.
    54  type Options interface {
    55  	// SetLogger sets the zap logger
    56  	SetLogger(value *zap.Logger) Options
    57  
    58  	// Logger returns the zap logger
    59  	Logger() *zap.Logger
    60  
    61  	// SetMetricsScope sets the metrics scope.
    62  	SetMetricsScope(value tally.Scope) Options
    63  
    64  	// MetricsScope returns the metrics scope.
    65  	MetricsScope() tally.Scope
    66  
    67  	// Tracer returns the tracer.
    68  	Tracer() opentracing.Tracer
    69  
    70  	// SetTracer sets the tracer.
    71  	SetTracer(tracer opentracing.Tracer) Options
    72  
    73  	// SetTimerOptions sets the metrics timer options to used
    74  	// when building timers from timer options.
    75  	SetTimerOptions(value TimerOptions) Options
    76  
    77  	// TimerOptions returns the metrics timer options to used
    78  	// when building timers from timer options.
    79  	TimerOptions() TimerOptions
    80  
    81  	// SetReportInterval sets the time between reporting metrics within the system.
    82  	SetReportInterval(time.Duration) Options
    83  
    84  	// ReportInterval returns the time between reporting metrics within the system.
    85  	ReportInterval() time.Duration
    86  
    87  	// SetCustomBuildTags sets custom tags to be added to build report metrics in
    88  	// addition to the defaults.
    89  	SetCustomBuildTags(tags map[string]string) Options
    90  
    91  	// CustomBuildTags returns the custom build tags.
    92  	CustomBuildTags() map[string]string
    93  
    94  	// SetProfiler sets the profiler.
    95  	SetProfiler(value Profiler) Options
    96  
    97  	// Profiler returns the Profiler.
    98  	Profiler() Profiler
    99  }