85 lines
1.2 KiB
Go
85 lines
1.2 KiB
Go
package iid
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import (
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"bytes"
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"encoding/base64"
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"encoding/binary"
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"io"
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"strings"
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)
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const (
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serializationprefix = "x"
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)
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var (
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base64encoding = base64.NewEncoding(
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"-"+
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"0123456789"+
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"ABCDEFGHIJKLMNOPQRSTUVWXYZ"+
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"_"+
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"abcdefghijklmnopqrstuvwxyz",
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).WithPadding(base64.NoPadding)
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)
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func serialize(value uint64) string {
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var binstorage bytes.Buffer
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{
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err := binary.Write(&binstorage, binary.BigEndian, value)
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if nil != err {
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return ""
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}
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}
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var encoded strings.Builder
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{
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encoded.WriteString(serializationprefix)
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}
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{
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var wc io.WriteCloser = base64.NewEncoder(base64encoding, &encoded)
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if nil == wc {
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return ""
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}
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wc.Write(binstorage.Bytes())
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wc.Close()
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}
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return encoded.String()
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}
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func unserialize(value string) (uint64, bool) {
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{
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if !strings.HasPrefix(value, serializationprefix) {
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return badvalue, false
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}
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value = value[len(serializationprefix):]
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}
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var p []byte
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{
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var err error
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p, err = base64encoding.DecodeString(value)
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if nil != err {
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return badvalue, false
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}
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}
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var result uint64
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{
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var reader io.Reader = bytes.NewReader(p)
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err := binary.Read(reader, binary.BigEndian, &result)
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if nil != err {
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return badvalue, false
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}
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}
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return result, true
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}
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