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https://github.com/Luzifer/cloudkeys-go.git
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102 lines
1.9 KiB
Go
102 lines
1.9 KiB
Go
// Copyright 2016 Canonical Ltd.
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// Licensed under the LGPLv3, see LICENCE file for details.
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package loggo
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import (
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"strings"
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"sync/atomic"
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)
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// The severity levels. Higher values are more considered more
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// important.
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const (
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UNSPECIFIED Level = iota
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TRACE
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DEBUG
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INFO
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WARNING
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ERROR
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CRITICAL
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)
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// Level holds a severity level.
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type Level uint32
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// ParseLevel converts a string representation of a logging level to a
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// Level. It returns the level and whether it was valid or not.
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func ParseLevel(level string) (Level, bool) {
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level = strings.ToUpper(level)
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switch level {
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case "UNSPECIFIED":
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return UNSPECIFIED, true
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case "TRACE":
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return TRACE, true
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case "DEBUG":
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return DEBUG, true
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case "INFO":
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return INFO, true
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case "WARN", "WARNING":
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return WARNING, true
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case "ERROR":
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return ERROR, true
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case "CRITICAL":
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return CRITICAL, true
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default:
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return UNSPECIFIED, false
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}
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}
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// String implements Stringer.
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func (level Level) String() string {
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switch level {
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case UNSPECIFIED:
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return "UNSPECIFIED"
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case TRACE:
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return "TRACE"
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case DEBUG:
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return "DEBUG"
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case INFO:
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return "INFO"
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case WARNING:
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return "WARNING"
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case ERROR:
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return "ERROR"
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case CRITICAL:
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return "CRITICAL"
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default:
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return "<unknown>"
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}
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}
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// Short returns a five character string to use in
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// aligned logging output.
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func (level Level) Short() string {
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switch level {
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case TRACE:
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return "TRACE"
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case DEBUG:
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return "DEBUG"
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case INFO:
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return "INFO "
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case WARNING:
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return "WARN "
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case ERROR:
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return "ERROR"
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case CRITICAL:
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return "CRITC"
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default:
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return " "
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}
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}
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// get atomically gets the value of the given level.
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func (level *Level) get() Level {
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return Level(atomic.LoadUint32((*uint32)(level)))
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}
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// set atomically sets the value of the receiver
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// to the given level.
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func (level *Level) set(newLevel Level) {
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atomic.StoreUint32((*uint32)(level), uint32(newLevel))
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}
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