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99 lines
2.9 KiB
Go
99 lines
2.9 KiB
Go
package logger
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import (
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"fmt"
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"os"
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)
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// CustomLogger defines what a user can do with a logger
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type CustomLogger interface {
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// Writeln writes directly to the output with no log level plus line ending
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Writeln(message string) error
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// Write writes directly to the output with no log level
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Write(message string) error
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// Trace level logging. Works like Sprintf.
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Trace(format string, args ...interface{}) error
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// Debug level logging. Works like Sprintf.
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Debug(format string, args ...interface{}) error
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// Info level logging. Works like Sprintf.
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Info(format string, args ...interface{}) error
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// Warning level logging. Works like Sprintf.
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Warning(format string, args ...interface{}) error
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// Error level logging. Works like Sprintf.
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Error(format string, args ...interface{}) error
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// Fatal level logging. Works like Sprintf.
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Fatal(format string, args ...interface{})
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}
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// customLogger is a utlility to log messages to a number of destinations
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type customLogger struct {
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logger *Logger
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name string
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}
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// New creates a new customLogger. You may pass in a number of `io.Writer`s that
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// are the targets for the logs
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func newcustomLogger(logger *Logger, name string) *customLogger {
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result := &customLogger{
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name: name,
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logger: logger,
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}
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return result
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}
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// Writeln writes directly to the output with no log level
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// Appends a carriage return to the message
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func (l *customLogger) Writeln(message string) error {
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return l.logger.Writeln(message)
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}
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// Write writes directly to the output with no log level
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func (l *customLogger) Write(message string) error {
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return l.logger.Write(message)
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}
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// Trace level logging. Works like Sprintf.
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func (l *customLogger) Trace(format string, args ...interface{}) error {
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format = fmt.Sprintf("%s | %s", l.name, format)
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return l.logger.processLogMessage(TRACE, format, args...)
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}
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// Debug level logging. Works like Sprintf.
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func (l *customLogger) Debug(format string, args ...interface{}) error {
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format = fmt.Sprintf("%s | %s", l.name, format)
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return l.logger.processLogMessage(DEBUG, format, args...)
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}
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// Info level logging. Works like Sprintf.
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func (l *customLogger) Info(format string, args ...interface{}) error {
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format = fmt.Sprintf("%s | %s", l.name, format)
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return l.logger.processLogMessage(INFO, format, args...)
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}
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// Warning level logging. Works like Sprintf.
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func (l *customLogger) Warning(format string, args ...interface{}) error {
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format = fmt.Sprintf("%s | %s", l.name, format)
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return l.logger.processLogMessage(WARNING, format, args...)
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}
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// Error level logging. Works like Sprintf.
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func (l *customLogger) Error(format string, args ...interface{}) error {
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format = fmt.Sprintf("%s | %s", l.name, format)
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return l.logger.processLogMessage(ERROR, format, args...)
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}
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// Fatal level logging. Works like Sprintf.
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func (l *customLogger) Fatal(format string, args ...interface{}) {
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format = fmt.Sprintf("%s | %s", l.name, format)
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l.logger.processLogMessage(FATAL, format, args...)
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os.Exit(1)
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}
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