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Open-IM-Server/pkg/utils/utils.go

169 lines
3.2 KiB

package utils
import (
"hash/crc32"
"math/rand"
"runtime"
"strconv"
"strings"
"time"
"github.com/jinzhu/copier"
"github.com/pkg/errors"
"google.golang.org/protobuf/proto"
)
// copy a by b b->a
func CopyStructFields(a interface{}, b interface{}, fields ...string) (err error) {
return copier.Copy(a, b)
}
func Wrap1(err error) error {
return errors.Wrap(err, "==> "+printCallerNameAndLine())
}
func Wrap2[T any](a T, err error) (T, error) {
if err != nil {
return a, errors.Wrap(err, "==> "+printCallerNameAndLine())
}
return a, nil
}
func Wrap3[T any, V any](a T, b V, err error) (T, V, error) {
if err != nil {
return a, b, errors.Wrap(err, "==> "+printCallerNameAndLine())
}
return a, b, nil
}
func Wrap(err error, message string) error {
return errors.Wrap(err, "==> "+printCallerNameAndLine()+message)
}
func WithMessage(err error, message string) error {
return errors.WithMessage(err, "==> "+printCallerNameAndLine()+message)
}
func printCallerNameAndLine() string {
pc, _, line, _ := runtime.Caller(2)
return runtime.FuncForPC(pc).Name() + "()@" + strconv.Itoa(line) + ": "
}
func GetSelfFuncName() string {
pc, _, _, _ := runtime.Caller(1)
return cleanUpFuncName(runtime.FuncForPC(pc).Name())
}
func GetFuncName(skips ...int) string {
skip := 1
if len(skips) > 0 {
skip = skips[0] + 1
}
pc, _, _, _ := runtime.Caller(skip)
return cleanUpFuncName(runtime.FuncForPC(pc).Name())
}
func cleanUpFuncName(funcName string) string {
end := strings.LastIndex(funcName, ".")
if end == -1 {
return ""
}
return funcName[end+1:]
}
// Get the intersection of two slices
func Intersect(slice1, slice2 []int64) []int64 {
m := make(map[int64]bool)
n := make([]int64, 0)
for _, v := range slice1 {
m[v] = true
}
for _, v := range slice2 {
flag, _ := m[v]
if flag {
n = append(n, v)
}
}
return n
}
// Get the diff of two slices
func Difference(slice1, slice2 []int64) []int64 {
m := make(map[int64]bool)
n := make([]int64, 0)
inter := Intersect(slice1, slice2)
for _, v := range inter {
m[v] = true
}
for _, v := range slice1 {
if !m[v] {
n = append(n, v)
}
}
for _, v := range slice2 {
if !m[v] {
n = append(n, v)
}
}
return n
}
// Get the intersection of two slices
func IntersectString(slice1, slice2 []string) []string {
m := make(map[string]bool)
n := make([]string, 0)
for _, v := range slice1 {
m[v] = true
}
for _, v := range slice2 {
flag, _ := m[v]
if flag {
n = append(n, v)
}
}
return n
}
// Get the diff of two slices
func DifferenceString(slice1, slice2 []string) []string {
m := make(map[string]bool)
n := make([]string, 0)
inter := IntersectString(slice1, slice2)
for _, v := range inter {
m[v] = true
}
for _, v := range slice1 {
if !m[v] {
n = append(n, v)
}
}
for _, v := range slice2 {
if !m[v] {
n = append(n, v)
}
}
return n
}
func OperationIDGenerator() string {
return strconv.FormatInt(time.Now().UnixNano()+int64(rand.Uint32()), 10)
}
func Pb2String(pb proto.Message) (string, error) {
s, err := proto.Marshal(pb)
if err != nil {
return "", err
}
return string(s), nil
}
func String2Pb(s string, pb proto.Message) error {
return proto.Unmarshal([]byte(s), pb)
}
func GetHashCode(s string) uint32 {
return crc32.ChecksumIEEE([]byte(s))
}