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package level
import (
"fmt"
"strings"
)
// LEVEL defines a level of logging.
type LEVEL uint8
// Default levels of logging.
const (
UNSET LEVEL = 0
PANIC LEVEL = 1
FATAL LEVEL = 50
ERROR LEVEL = 100
WARN LEVEL = 150
INFO LEVEL = 200
DEBUG LEVEL = 250
TRACE LEVEL = 254
ALL LEVEL = ^LEVEL(0)
)
// CanLog returns whether an incoming log of 'lvl' can be logged against receiving level.
func (loglvl LEVEL) CanLog(lvl LEVEL) bool {
return loglvl > lvl
}
// Levels defines a mapping of log LEVELs to formatted level strings.
type Levels [int(ALL) + 1]string
// Default returns the default set of log levels.
func Default() Levels {
return Levels{
TRACE: "TRACE",
DEBUG: "DEBUG",
INFO: "INFO",
WARN: "WARN",
ERROR: "ERROR",
FATAL: "FATAL",
PANIC: "PANIC",
}
}
// Get fetches the level string for the provided value.
func (l Levels) Get(lvl LEVEL) string {
return l[int(lvl)]
}
// Parse will attempt to decode a LEVEL from given string, checking (case insensitive) against strings in Levels.
func (l Levels) Parse(s string) (LEVEL, error) {
// Ensure consistent casing
s = strings.ToUpper(s)
for lvl := LEVEL(0); int(lvl) < len(l); lvl++ {
// Compare to eqach known level
if strings.ToUpper(l[lvl]) == s {
return lvl, nil
}
}
return 0, fmt.Errorf("unrecognized log level: %s", s)
}
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