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package srslog
import (
"fmt"
"os"
"time"
)
// Formatter is a type of function that takes the consituent parts of a
// syslog message and returns a formatted string. A different Formatter is
// defined for each different syslog protocol we support.
type Formatter func(p Priority, hostname, tag, content string) string
// DefaultFormatter is the original format supported by the Go syslog package,
// and is a non-compliant amalgamation of 3164 and 5424 that is intended to
// maximize compatibility.
func DefaultFormatter(p Priority, hostname, tag, content string) string {
timestamp := time.Now().Format(time.RFC3339)
msg := fmt.Sprintf("<%d> %s %s %s[%d]: %s",
p, timestamp, hostname, tag, os.Getpid(), content)
return msg
}
// UnixFormatter omits the hostname, because it is only used locally.
func UnixFormatter(p Priority, hostname, tag, content string) string {
timestamp := time.Now().Format(time.Stamp)
msg := fmt.Sprintf("<%d>%s %s[%d]: %s",
p, timestamp, tag, os.Getpid(), content)
return msg
}
// RFC3164Formatter provides an RFC 3164 compliant message.
func RFC3164Formatter(p Priority, hostname, tag, content string) string {
timestamp := time.Now().Format(time.Stamp)
msg := fmt.Sprintf("<%d>%s %s %s[%d]: %s",
p, timestamp, hostname, tag, os.Getpid(), content)
return msg
}
// RFC5424Formatter provides an RFC 5424 compliant message.
func RFC5424Formatter(p Priority, hostname, tag, content string) string {
timestamp := time.Now().Format(time.RFC3339)
pid := os.Getpid()
appName := os.Args[0]
msg := fmt.Sprintf("<%d>%d %s %s %s %d %s %s",
p, 1, timestamp, hostname, appName, pid, tag, content)
return msg
}
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