gotosocial/vendor/google.golang.org/grpc/grpclog/loggerv2.go
dependabot[bot] c6fdcd52fa
[chore]: Bump go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp from 1.17.0 to 1.18.0 (#2207)
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
2023-09-18 13:47:28 +01:00

259 lines
7.9 KiB
Go

/*
*
* Copyright 2017 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package grpclog
import (
"encoding/json"
"fmt"
"io"
"log"
"os"
"strconv"
"strings"
"google.golang.org/grpc/internal/grpclog"
)
// LoggerV2 does underlying logging work for grpclog.
type LoggerV2 interface {
// Info logs to INFO log. Arguments are handled in the manner of fmt.Print.
Info(args ...any)
// Infoln logs to INFO log. Arguments are handled in the manner of fmt.Println.
Infoln(args ...any)
// Infof logs to INFO log. Arguments are handled in the manner of fmt.Printf.
Infof(format string, args ...any)
// Warning logs to WARNING log. Arguments are handled in the manner of fmt.Print.
Warning(args ...any)
// Warningln logs to WARNING log. Arguments are handled in the manner of fmt.Println.
Warningln(args ...any)
// Warningf logs to WARNING log. Arguments are handled in the manner of fmt.Printf.
Warningf(format string, args ...any)
// Error logs to ERROR log. Arguments are handled in the manner of fmt.Print.
Error(args ...any)
// Errorln logs to ERROR log. Arguments are handled in the manner of fmt.Println.
Errorln(args ...any)
// Errorf logs to ERROR log. Arguments are handled in the manner of fmt.Printf.
Errorf(format string, args ...any)
// Fatal logs to ERROR log. Arguments are handled in the manner of fmt.Print.
// gRPC ensures that all Fatal logs will exit with os.Exit(1).
// Implementations may also call os.Exit() with a non-zero exit code.
Fatal(args ...any)
// Fatalln logs to ERROR log. Arguments are handled in the manner of fmt.Println.
// gRPC ensures that all Fatal logs will exit with os.Exit(1).
// Implementations may also call os.Exit() with a non-zero exit code.
Fatalln(args ...any)
// Fatalf logs to ERROR log. Arguments are handled in the manner of fmt.Printf.
// gRPC ensures that all Fatal logs will exit with os.Exit(1).
// Implementations may also call os.Exit() with a non-zero exit code.
Fatalf(format string, args ...any)
// V reports whether verbosity level l is at least the requested verbose level.
V(l int) bool
}
// SetLoggerV2 sets logger that is used in grpc to a V2 logger.
// Not mutex-protected, should be called before any gRPC functions.
func SetLoggerV2(l LoggerV2) {
if _, ok := l.(*componentData); ok {
panic("cannot use component logger as grpclog logger")
}
grpclog.Logger = l
grpclog.DepthLogger, _ = l.(grpclog.DepthLoggerV2)
}
const (
// infoLog indicates Info severity.
infoLog int = iota
// warningLog indicates Warning severity.
warningLog
// errorLog indicates Error severity.
errorLog
// fatalLog indicates Fatal severity.
fatalLog
)
// severityName contains the string representation of each severity.
var severityName = []string{
infoLog: "INFO",
warningLog: "WARNING",
errorLog: "ERROR",
fatalLog: "FATAL",
}
// loggerT is the default logger used by grpclog.
type loggerT struct {
m []*log.Logger
v int
jsonFormat bool
}
// NewLoggerV2 creates a loggerV2 with the provided writers.
// Fatal logs will be written to errorW, warningW, infoW, followed by exit(1).
// Error logs will be written to errorW, warningW and infoW.
// Warning logs will be written to warningW and infoW.
// Info logs will be written to infoW.
func NewLoggerV2(infoW, warningW, errorW io.Writer) LoggerV2 {
return newLoggerV2WithConfig(infoW, warningW, errorW, loggerV2Config{})
}
// NewLoggerV2WithVerbosity creates a loggerV2 with the provided writers and
// verbosity level.
func NewLoggerV2WithVerbosity(infoW, warningW, errorW io.Writer, v int) LoggerV2 {
return newLoggerV2WithConfig(infoW, warningW, errorW, loggerV2Config{verbose: v})
}
type loggerV2Config struct {
verbose int
jsonFormat bool
}
func newLoggerV2WithConfig(infoW, warningW, errorW io.Writer, c loggerV2Config) LoggerV2 {
var m []*log.Logger
flag := log.LstdFlags
if c.jsonFormat {
flag = 0
}
m = append(m, log.New(infoW, "", flag))
m = append(m, log.New(io.MultiWriter(infoW, warningW), "", flag))
ew := io.MultiWriter(infoW, warningW, errorW) // ew will be used for error and fatal.
m = append(m, log.New(ew, "", flag))
m = append(m, log.New(ew, "", flag))
return &loggerT{m: m, v: c.verbose, jsonFormat: c.jsonFormat}
}
// newLoggerV2 creates a loggerV2 to be used as default logger.
// All logs are written to stderr.
func newLoggerV2() LoggerV2 {
errorW := io.Discard
warningW := io.Discard
infoW := io.Discard
logLevel := os.Getenv("GRPC_GO_LOG_SEVERITY_LEVEL")
switch logLevel {
case "", "ERROR", "error": // If env is unset, set level to ERROR.
errorW = os.Stderr
case "WARNING", "warning":
warningW = os.Stderr
case "INFO", "info":
infoW = os.Stderr
}
var v int
vLevel := os.Getenv("GRPC_GO_LOG_VERBOSITY_LEVEL")
if vl, err := strconv.Atoi(vLevel); err == nil {
v = vl
}
jsonFormat := strings.EqualFold(os.Getenv("GRPC_GO_LOG_FORMATTER"), "json")
return newLoggerV2WithConfig(infoW, warningW, errorW, loggerV2Config{
verbose: v,
jsonFormat: jsonFormat,
})
}
func (g *loggerT) output(severity int, s string) {
sevStr := severityName[severity]
if !g.jsonFormat {
g.m[severity].Output(2, fmt.Sprintf("%v: %v", sevStr, s))
return
}
// TODO: we can also include the logging component, but that needs more
// (API) changes.
b, _ := json.Marshal(map[string]string{
"severity": sevStr,
"message": s,
})
g.m[severity].Output(2, string(b))
}
func (g *loggerT) Info(args ...any) {
g.output(infoLog, fmt.Sprint(args...))
}
func (g *loggerT) Infoln(args ...any) {
g.output(infoLog, fmt.Sprintln(args...))
}
func (g *loggerT) Infof(format string, args ...any) {
g.output(infoLog, fmt.Sprintf(format, args...))
}
func (g *loggerT) Warning(args ...any) {
g.output(warningLog, fmt.Sprint(args...))
}
func (g *loggerT) Warningln(args ...any) {
g.output(warningLog, fmt.Sprintln(args...))
}
func (g *loggerT) Warningf(format string, args ...any) {
g.output(warningLog, fmt.Sprintf(format, args...))
}
func (g *loggerT) Error(args ...any) {
g.output(errorLog, fmt.Sprint(args...))
}
func (g *loggerT) Errorln(args ...any) {
g.output(errorLog, fmt.Sprintln(args...))
}
func (g *loggerT) Errorf(format string, args ...any) {
g.output(errorLog, fmt.Sprintf(format, args...))
}
func (g *loggerT) Fatal(args ...any) {
g.output(fatalLog, fmt.Sprint(args...))
os.Exit(1)
}
func (g *loggerT) Fatalln(args ...any) {
g.output(fatalLog, fmt.Sprintln(args...))
os.Exit(1)
}
func (g *loggerT) Fatalf(format string, args ...any) {
g.output(fatalLog, fmt.Sprintf(format, args...))
os.Exit(1)
}
func (g *loggerT) V(l int) bool {
return l <= g.v
}
// DepthLoggerV2 logs at a specified call frame. If a LoggerV2 also implements
// DepthLoggerV2, the below functions will be called with the appropriate stack
// depth set for trivial functions the logger may ignore.
//
// # Experimental
//
// Notice: This type is EXPERIMENTAL and may be changed or removed in a
// later release.
type DepthLoggerV2 interface {
LoggerV2
// InfoDepth logs to INFO log at the specified depth. Arguments are handled in the manner of fmt.Println.
InfoDepth(depth int, args ...any)
// WarningDepth logs to WARNING log at the specified depth. Arguments are handled in the manner of fmt.Println.
WarningDepth(depth int, args ...any)
// ErrorDepth logs to ERROR log at the specified depth. Arguments are handled in the manner of fmt.Println.
ErrorDepth(depth int, args ...any)
// FatalDepth logs to FATAL log at the specified depth. Arguments are handled in the manner of fmt.Println.
FatalDepth(depth int, args ...any)
}