laconicd/utils/types.go

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//
// Copyright 2020 Wireline, Inc.
//
package utils
import (
"bytes"
"encoding/binary"
"sort"
set "github.com/deckarep/golang-set"
)
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func Int64ToBytes(num int64) ([]byte, error) {
buf := new(bytes.Buffer)
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if err := binary.Write(buf, binary.BigEndian, num); err != nil {
return nil, err
}
return buf.Bytes(), nil
}
func SetToSlice(set set.Set) []string {
names := []string{}
for name := range set.Iter() {
if name, ok := name.(string); ok && name != "" {
names = append(names, name)
}
}
sort.SliceStable(names, func(i, j int) bool { return names[i] < names[j] })
return names
}
func SliceToSet(names []string) set.Set {
set := set.NewThreadUnsafeSet()
for _, name := range names {
if name != "" {
set.Add(name)
}
}
return set
}
func AppendUnique(list []string, element string) []string {
set := SliceToSet(list)
set.Add(element)
return SetToSlice(set)
}