internal/id/id.go

// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

package id

import (
	"fmt"
	"hash/crc32"
	"unsafe"
)

// GenID generates an ID according to the raw material.
func GenID(raw string) string {
	if raw == "" {
		return ""
	}
	p := unsafe.Slice(unsafe.StringData(raw), len(raw))

	res := crc32.ChecksumIEEE(p)
	return fmt.Sprintf("%x", res)
}