| /* |
| * Copyright 2018-present Open Networking Foundation |
| |
| * Licensed 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 core |
| |
| import ( |
| "errors" |
| "fmt" |
| "math/rand" |
| "strconv" |
| |
| "github.com/google/uuid" |
| ) |
| |
| // CreateDeviceID produces a device ID. The device ID is a UUID |
| func CreateDeviceID() string { |
| return uuid.New().String() |
| } |
| |
| // CreateLogicalDeviceID produces a logical device ID. The logical device ID is a UUID |
| func CreateLogicalDeviceID() string { |
| return uuid.New().String() |
| } |
| |
| // CreateLogicalPortID produces a random port ID for a logical device. |
| func CreateLogicalPortID() uint32 { |
| // A logical port is a uint32 |
| return rand.Uint32() |
| } |
| |
| // CreateDataPathID creates uint64 pathid from string pathid |
| func CreateDataPathID(idInHexString string) (uint64, error) { |
| if idInHexString == "" { |
| return 0, errors.New("id-empty") |
| } |
| // First prepend 0x to the string |
| newID := fmt.Sprintf("0x%s", idInHexString) |
| d, err := strconv.ParseUint(newID, 0, 64) |
| if err != nil { |
| return 0, err |
| } |
| return d, nil |
| } |