How to use Warning method of logger Package

Best Gauge code snippet using logger.Warning

loggerv2.go

Source: loggerv2.go Github

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...31 /​/​ Infoln logs to INFO log. Arguments are handled in the manner of fmt.Println.32 Infoln(args ...interface{})33 /​/​ Infof logs to INFO log. Arguments are handled in the manner of fmt.Printf.34 Infof(format string, args ...interface{})35 /​/​ Warning logs to WARNING log. Arguments are handled in the manner of fmt.Print.36 Warning(args ...interface{})37 /​/​ Warningln logs to WARNING log. Arguments are handled in the manner of fmt.Println.38 Warningln(args ...interface{})39 /​/​ Warningf logs to WARNING log. Arguments are handled in the manner of fmt.Printf.40 Warningf(format string, args ...interface{})41 /​/​ Error logs to ERROR log. Arguments are handled in the manner of fmt.Print.42 Error(args ...interface{})43 /​/​ Errorln logs to ERROR log. Arguments are handled in the manner of fmt.Println.44 Errorln(args ...interface{})45 /​/​ Errorf logs to ERROR log. Arguments are handled in the manner of fmt.Printf.46 Errorf(format string, args ...interface{})47 /​/​ Fatal logs to ERROR log. Arguments are handled in the manner of fmt.Print.48 /​/​ gRPC ensures that all Fatal logs will exit with os.Exit(1).49 /​/​ Implementations may also call os.Exit() with a non-zero exit code.50 Fatal(args ...interface{})51 /​/​ Fatalln logs to ERROR log. Arguments are handled in the manner of fmt.Println.52 /​/​ gRPC ensures that all Fatal logs will exit with os.Exit(1).53 /​/​ Implementations may also call os.Exit() with a non-zero exit code.54 Fatalln(args ...interface{})55 /​/​ Fatalf logs to ERROR log. Arguments are handled in the manner of fmt.Printf.56 /​/​ gRPC ensures that all Fatal logs will exit with os.Exit(1).57 /​/​ Implementations may also call os.Exit() with a non-zero exit code.58 Fatalf(format string, args ...interface{})59 /​/​ V reports whether verbosity level l is at least the requested verbose level.60 V(l int) bool61}62/​/​ SetLoggerV2 sets logger that is used in grpc to a V2 logger.63/​/​ Not mutex-protected, should be called before any gRPC functions.64func SetLoggerV2(l LoggerV2) {65 grpclog.Logger = l66 grpclog.DepthLogger, _ = l.(grpclog.DepthLoggerV2)67}68const (69 /​/​ infoLog indicates Info severity.70 infoLog int = iota71 /​/​ warningLog indicates Warning severity.72 warningLog73 /​/​ errorLog indicates Error severity.74 errorLog75 /​/​ fatalLog indicates Fatal severity.76 fatalLog77)78/​/​ severityName contains the string representation of each severity.79var severityName = []string{80 infoLog: "INFO",81 warningLog: "WARNING",82 errorLog: "ERROR",83 fatalLog: "FATAL",84}85/​/​ loggerT is the default logger used by grpclog.86type loggerT struct {87 m []*log.Logger88 v int89}90/​/​ NewLoggerV2 creates a loggerV2 with the provided writers.91/​/​ Fatal logs will be written to errorW, warningW, infoW, followed by exit(1).92/​/​ Error logs will be written to errorW, warningW and infoW.93/​/​ Warning logs will be written to warningW and infoW.94/​/​ Info logs will be written to infoW.95func NewLoggerV2(infoW, warningW, errorW io.Writer) LoggerV2 {96 return NewLoggerV2WithVerbosity(infoW, warningW, errorW, 0)97}98/​/​ NewLoggerV2WithVerbosity creates a loggerV2 with the provided writers and99/​/​ verbosity level.100func NewLoggerV2WithVerbosity(infoW, warningW, errorW io.Writer, v int) LoggerV2 {101 var m []*log.Logger102 m = append(m, log.New(infoW, severityName[infoLog]+": ", log.LstdFlags))103 m = append(m, log.New(io.MultiWriter(infoW, warningW), severityName[warningLog]+": ", log.LstdFlags))104 ew := io.MultiWriter(infoW, warningW, errorW) /​/​ ew will be used for error and fatal.105 m = append(m, log.New(ew, severityName[errorLog]+": ", log.LstdFlags))106 m = append(m, log.New(ew, severityName[fatalLog]+": ", log.LstdFlags))107 return &loggerT{m: m, v: v}108}109/​/​ newLoggerV2 creates a loggerV2 to be used as default logger.110/​/​ All logs are written to stderr.111func newLoggerV2() LoggerV2 {112 errorW := ioutil.Discard113 warningW := ioutil.Discard114 infoW := ioutil.Discard115 logLevel := os.Getenv("GRPC_GO_LOG_SEVERITY_LEVEL")116 switch logLevel {117 case "", "ERROR", "error": /​/​ If env is unset, set level to ERROR.118 errorW = os.Stderr119 case "WARNING", "warning":120 warningW = os.Stderr121 case "INFO", "info":122 infoW = os.Stderr123 }124 var v int125 vLevel := os.Getenv("GRPC_GO_LOG_VERBOSITY_LEVEL")126 if vl, err := strconv.Atoi(vLevel); err == nil {127 v = vl128 }129 return NewLoggerV2WithVerbosity(infoW, warningW, errorW, v)130}131func (g *loggerT) Info(args ...interface{}) {132 g.m[infoLog].Print(args...)133}134func (g *loggerT) Infoln(args ...interface{}) {135 g.m[infoLog].Println(args...)136}137func (g *loggerT) Infof(format string, args ...interface{}) {138 g.m[infoLog].Printf(format, args...)139}140func (g *loggerT) Warning(args ...interface{}) {141 g.m[warningLog].Print(args...)142}143func (g *loggerT) Warningln(args ...interface{}) {144 g.m[warningLog].Println(args...)145}146func (g *loggerT) Warningf(format string, args ...interface{}) {147 g.m[warningLog].Printf(format, args...)148}149func (g *loggerT) Error(args ...interface{}) {150 g.m[errorLog].Print(args...)151}152func (g *loggerT) Errorln(args ...interface{}) {153 g.m[errorLog].Println(args...)154}155func (g *loggerT) Errorf(format string, args ...interface{}) {156 g.m[errorLog].Printf(format, args...)157}158func (g *loggerT) Fatal(args ...interface{}) {159 g.m[fatalLog].Fatal(args...)160 /​/​ No need to call os.Exit() again because log.Logger.Fatal() calls os.Exit().161}162func (g *loggerT) Fatalln(args ...interface{}) {163 g.m[fatalLog].Fatalln(args...)164 /​/​ No need to call os.Exit() again because log.Logger.Fatal() calls os.Exit().165}166func (g *loggerT) Fatalf(format string, args ...interface{}) {167 g.m[fatalLog].Fatalf(format, args...)168 /​/​ No need to call os.Exit() again because log.Logger.Fatal() calls os.Exit().169}170func (g *loggerT) V(l int) bool {171 return l <= g.v172}173/​/​ DepthLoggerV2 logs at a specified call frame. If a LoggerV2 also implements174/​/​ DepthLoggerV2, the below functions will be called with the appropriate stack175/​/​ depth set for trivial functions the logger may ignore.176/​/​177/​/​ This API is EXPERIMENTAL.178type DepthLoggerV2 interface {179 /​/​ InfoDepth logs to INFO log at the specified depth. Arguments are handled in the manner of fmt.Print.180 InfoDepth(depth int, args ...interface{})181 /​/​ WarningDepth logs to WARNING log at the specified depth. Arguments are handled in the manner of fmt.Print.182 WarningDepth(depth int, args ...interface{})183 /​/​ ErrorDetph logs to ERROR log at the specified depth. Arguments are handled in the manner of fmt.Print.184 ErrorDepth(depth int, args ...interface{})185 /​/​ FatalDepth logs to FATAL log at the specified depth. Arguments are handled in the manner of fmt.Print.186 FatalDepth(depth int, args ...interface{})187}...

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logger_test.go

Source: logger_test.go Github

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...16 Context("Constants order", func() {17 It("Fatal < Error", func() {18 Expect(logger.LogFatal).To(BeNumerically("<", logger.LogError))19 })20 It("Error < Warning", func() {21 Expect(logger.LogError).To(BeNumerically("<", logger.LogWarning))22 })23 It("Warning < Info", func() {24 Expect(logger.LogWarning).To(BeNumerically("<", logger.LogInfo))25 })26 It("Info < Debug", func() {27 Expect(logger.LogInfo).To(BeNumerically("<", logger.LogDebug))28 })29 It("Debug < Debug2", func() {30 Expect(logger.LogDebug).To(BeNumerically("<", logger.LogDebug2))31 })32 })33 Context("Constants to String", func() {34 vals := []int{logger.LogFatal, logger.LogError, logger.LogWarning, logger.LogInfo,35 logger.LogDebug, logger.LogDebug2}36 vStrings := []string{"FATAL", "ERROR", "WARNING", "INFO", "DEBUG", "DEBUG2"}37 for i, level := range vals {38 It("level => string", func() {39 Expect(logger.GetLogLevelString(level)).To(Equal(vStrings[i]))40 })41 It("string => level", func() {42 Expect(logger.FindLogLevel(vStrings[i])).To(Equal(level))43 })44 }45 })46 Context("Logger logs only necessary data", func() {47 tmpFile := ""48 BeforeEach(func() {49 tmpfile, err := ioutil.TempFile("", "tests")50 if err != nil {51 panic(err)52 }53 tmpFile = tmpfile.Name()54 })55 AfterEach(func() {56 if tmpFile != "" {57 os.Remove(tmpFile)58 tmpFile = ""59 }60 })61 It("level=Fatal (fatal called)", func() {62 defer func() {63 r := recover()64 Expect(r).NotTo(BeNil())65 content := getLogs(tmpFile)66 Expect(content).To(ContainSubstring("FATAL TestF"))67 Expect(len(strings.Split(content, "\n"))).To(Equal(2))68 }()69 l := logger.NewLogger(logger.LogFatal, tmpFile)70 l.Debug2("TestD2")71 l.Debug("TestD")72 l.Info("TestI")73 l.Warning("TestW")74 l.Error("TestE")75 l.Fatal("TestF")76 })77 It("level=Fatal (no Fatal called)", func() {78 l := logger.NewLogger(logger.LogFatal, tmpFile)79 l.Debug2("TestD2")80 l.Debug("TestD")81 l.Info("TestI")82 l.Warning("TestW")83 l.Error("TestE")84 content := getLogs(tmpFile)85 Expect(content).To(Equal(""))86 })87 It("level=Error", func() {88 l := logger.NewLogger(logger.LogError, tmpFile)89 l.Debug2("TestD2")90 l.Debug("TestD")91 l.Info("TestI")92 l.Warning("TestW")93 l.Error("TestE")94 content := getLogs(tmpFile)95 Expect(content).To(ContainSubstring("ERROR TestE"))96 Expect(content).NotTo(ContainSubstring("Warning TestW"))97 Expect(content).NotTo(ContainSubstring("INFO TestI"))98 Expect(content).NotTo(ContainSubstring("DEBUG TestD"))99 Expect(content).NotTo(ContainSubstring("DEBUG2 TestD2"))100 Expect(len(strings.Split(content, "\n"))).To(Equal(2))101 })102 It("level=Warning", func() {103 l := logger.NewLogger(logger.LogWarning, tmpFile)104 l.Debug2("TestD2")105 l.Debug("TestD")106 l.Info("TestI")107 l.Warning("TestW")108 l.Error("TestE")109 content := getLogs(tmpFile)110 Expect(content).To(ContainSubstring("ERROR TestE"))111 Expect(content).To(ContainSubstring("WARNING TestW"))112 Expect(content).NotTo(ContainSubstring("INFO TestI"))113 Expect(content).NotTo(ContainSubstring("DEBUG TestD"))114 Expect(content).NotTo(ContainSubstring("DEBUG2 TestD2"))115 Expect(len(strings.Split(content, "\n"))).To(Equal(3))116 })117 It("level=Info", func() {118 l := logger.NewLogger(logger.LogInfo, tmpFile)119 l.Debug2("TestD2")120 l.Debug("TestD")121 l.Info("TestI")122 l.Warning("TestW")123 l.Error("TestE")124 content := getLogs(tmpFile)125 Expect(content).To(ContainSubstring("ERROR TestE"))126 Expect(content).To(ContainSubstring("WARNING TestW"))127 Expect(content).To(ContainSubstring("INFO TestI"))128 Expect(content).NotTo(ContainSubstring("DEBUG TestD"))129 Expect(content).NotTo(ContainSubstring("DEBUG2 TestD2"))130 Expect(len(strings.Split(content, "\n"))).To(Equal(4))131 })132 It("level=Debug", func() {133 l := logger.NewLogger(logger.LogDebug, tmpFile)134 l.Debug2("TestD2")135 l.Debug("TestD")136 l.Info("TestI")137 l.Warning("TestW")138 l.Error("TestE")139 content := getLogs(tmpFile)140 Expect(content).To(ContainSubstring("ERROR TestE"))141 Expect(content).To(ContainSubstring("WARNING TestW"))142 Expect(content).To(ContainSubstring("INFO TestI"))143 Expect(content).To(ContainSubstring("DEBUG TestD"))144 Expect(content).NotTo(ContainSubstring("DEBUG2 TestD2"))145 Expect(len(strings.Split(content, "\n"))).To(Equal(5))146 })147 It("level=Debug2", func() {148 l := logger.NewLogger(logger.LogDebug2, tmpFile)149 l.Debug2("TestD2")150 l.Debug("TestD")151 l.Info("TestI")152 l.Warning("TestW")153 l.Error("TestE")154 content := getLogs(tmpFile)155 Expect(content).To(ContainSubstring("ERROR TestE"))156 Expect(content).To(ContainSubstring("WARNING TestW"))157 Expect(content).To(ContainSubstring("INFO TestI"))158 Expect(content).To(ContainSubstring("DEBUG TestD"))159 Expect(content).To(ContainSubstring("DEBUG2 TestD2"))160 Expect(len(strings.Split(content, "\n"))).To(Equal(6))161 })162 })163 })164})...

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Warning

Using AI Code Generation

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1logger.Warning("Warning Message")2logger.Error("Error Message")3logger.Fatal("Fatal Message")4logger.Panic("Panic Message")5logger.Debug("Debug Message")6logger.Info("Info Message")7logger.Trace("Trace Message")8logger.Warningf("Warning Message")9logger.Errorf("Error Message")10logger.Fatalf("Fatal Message")11logger.Panicf("Panic Message")12logger.Debugf("Debug Message")13logger.Infof("Info Message")14logger.Tracef("Trace Message")15logger.Warningln("Warning Message")16logger.Errorln("Error Message")17logger.Fatalln("Fatal Message")18logger.Panicln("Panic Message")19logger.Debugln("Debug Message")20logger.Infoln("Info Message")

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Warning

Using AI Code Generation

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1import (2func main() {3 logFile, err := os.OpenFile("log.txt", os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0644)4 if err != nil {5 log.Fatal(err)6 }7 defer logFile.Close()8 log.SetOutput(logFile)9 log.SetFlags(log.LstdFlags | log.Lshortfile)10 log.Println("This is a log

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Warning

Using AI Code Generation

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1import (2func main() {3 f, err := os.Create("log.txt")4 if err != nil {5 log.Fatal(err)6 }7 log.SetOutput(f)

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Warning

Using AI Code Generation

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1import (2func main() {3 log.Println("This is a log message")4 log.Panicln("This is a panic message")5 log.Fatalln("This is a fatal message")6 log.Println("This is a log message")7}8log.Panicln(0xc00005bf70, 0x1, 0x1)9main.main()

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Warning

Using AI Code Generation

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1import (2func main() {3 log.Println("This is a log message.")4 log.Fatalln("This is a fatal message.")5 log.Panicln("This is a panic message.")6}7log.Panicln(0xc20800a0b0, 0x1, 0x1)8main.main()9log.Panicln(0xc20800a0b0, 0x1, 0x1)10main.main()

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Warning

Using AI Code Generation

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1import (2func main() {3 log.Print("This is a log message")4 log.Println("This is a log message")5 log.Printf("This is a log message")6}7import (8func main() {9 log.Fatal("This is a log message")10 log.Fatalln("This is a log message")11 log.Fatalf("This is a log message")12}13import (14func main() {15 log.Panic("This is a log message")16 log.Panicln("This is a log message")17 log.Panicf("This is a log message")18}19log.Panic(0xc0000b7f50, 0x1, 0x1)20main.main()21import (22func main() {23 log.SetFlags(log.Ldate | log.Ltime | log.Lshortfile)24 log.Print("This is a log message")25 log.Println("This is a log message")26 log.Printf("This is a log message")27}

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Warning

Using AI Code Generation

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1import "log"2func main() {3log.Warning("Warning")4}5import "log"6func main() {7log.Warning("Warning")8}

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