Files
iotlcm/worker-svr/internal/library/batchfields/limits.go

51 lines
1.2 KiB
Go

package batchfields
import (
"regexp"
"strings"
"unicode/utf8"
)
const (
ItemIDLimit = 64
DetailReasonLimit = 512
FailureReasonByteLimit = 4096
)
var mysqlErrorAfterSQL = regexp.MustCompile(`(?i): Error [0-9]{3,5} \([0-9A-Z]{5}\): [^\r\n]{0,160}`)
func DetailReason(value string) string {
runes := []rune(strings.TrimSpace(value))
if len(runes) > DetailReasonLimit {
return string(runes[:DetailReasonLimit])
}
return string(runes)
}
func ItemID(value string) string {
if utf8.RuneCountInString(value) > ItemIDLimit {
return ""
}
return value
}
func FailureReason(value string) string {
value = strings.ToValidUTF8(strings.TrimSpace(value), "")
upper := strings.ToUpper(value)
for _, marker := range []string{": INSERT INTO ", ": UPDATE ", ": SELECT ", ": DELETE FROM "} {
if index := strings.Index(upper, marker); index >= 0 {
databaseError := mysqlErrorAfterSQL.FindString(value[index+len(marker):])
value = value[:index] + " (SQL omitted)" + databaseError
break
}
}
if len(value) <= FailureReasonByteLimit {
return value
}
end := FailureReasonByteLimit - 3
for end > 0 && !utf8.RuneStart(value[end]) {
end--
}
return value[:end] + "..."
}