mirror of https://github.com/v2ray/v2ray-core
115 lines
2.2 KiB
Go
115 lines
2.2 KiB
Go
package log
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import (
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"fmt"
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"github.com/v2ray/v2ray-core/common/serial"
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)
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const (
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DebugLevel = LogLevel(0)
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InfoLevel = LogLevel(1)
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WarningLevel = LogLevel(2)
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ErrorLevel = LogLevel(3)
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)
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type errorLog struct {
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prefix string
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values []interface{}
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}
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func (this *errorLog) String() string {
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data := ""
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for _, value := range this.values {
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switch typedVal := value.(type) {
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case string:
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data += typedVal
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case *string:
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data += *typedVal
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case serial.String:
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data += typedVal.String()
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case error:
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data += typedVal.Error()
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default:
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data += fmt.Sprintf("%v", value)
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}
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}
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return this.prefix + data
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}
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var (
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noOpLoggerInstance logWriter = &noOpLogWriter{}
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streamLoggerInstance logWriter = newStdOutLogWriter()
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debugLogger = noOpLoggerInstance
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infoLogger = noOpLoggerInstance
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warningLogger = streamLoggerInstance
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errorLogger = streamLoggerInstance
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)
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type LogLevel int
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func SetLogLevel(level LogLevel) {
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debugLogger = noOpLoggerInstance
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if level <= DebugLevel {
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debugLogger = streamLoggerInstance
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}
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infoLogger = noOpLoggerInstance
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if level <= InfoLevel {
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infoLogger = streamLoggerInstance
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}
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warningLogger = noOpLoggerInstance
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if level <= WarningLevel {
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warningLogger = streamLoggerInstance
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}
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errorLogger = noOpLoggerInstance
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if level <= ErrorLevel {
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errorLogger = streamLoggerInstance
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}
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}
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func InitErrorLogger(file string) error {
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logger, err := newFileLogWriter(file)
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if err != nil {
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Error("Failed to create error logger on file (", file, "): ", err)
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return err
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}
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streamLoggerInstance = logger
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return nil
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}
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// Debug outputs a debug log with given format and optional arguments.
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func Debug(v ...interface{}) {
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debugLogger.Log(&errorLog{
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prefix: "[Debug]",
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values: v,
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})
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}
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// Info outputs an info log with given format and optional arguments.
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func Info(v ...interface{}) {
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infoLogger.Log(&errorLog{
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prefix: "[Info]",
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values: v,
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})
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}
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// Warning outputs a warning log with given format and optional arguments.
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func Warning(v ...interface{}) {
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warningLogger.Log(&errorLog{
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prefix: "[Warning]",
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values: v,
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})
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}
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// Error outputs an error log with given format and optional arguments.
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func Error(v ...interface{}) {
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errorLogger.Log(&errorLog{
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prefix: "[Error]",
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values: v,
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})
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}
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