1 /*
2 * Copyright (c) 2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 //! This file implement the file operations.
17
18 use std::{fs, path::Path};
19
20 use asset_definition::{log_throw_error, ErrCode, Result};
21 use asset_log::logi;
22
23 const ROOT_PATH: &str = "data/service/el1/public/asset_service";
24
construct_user_path(user_id: i32) -> String25 fn construct_user_path(user_id: i32) -> String {
26 format!("{}/{}", ROOT_PATH, user_id)
27 }
28
29 /// Check user db dir exist.
is_user_db_dir_exist(user_id: i32) -> bool30 pub fn is_user_db_dir_exist(user_id: i32) -> bool {
31 let path_str = construct_user_path(user_id);
32 let path: &Path = Path::new(&path_str);
33 path.exists()
34 }
35
36 /// Create user database directory.
create_user_db_dir(user_id: i32) -> Result<()>37 pub fn create_user_db_dir(user_id: i32) -> Result<()> {
38 if is_user_db_dir_exist(user_id) {
39 return Ok(());
40 }
41
42 logi!("[INFO]Directory is not exist, create it...");
43 let path_str = construct_user_path(user_id);
44 let path: &Path = Path::new(&path_str);
45 match fs::create_dir(path) {
46 Ok(_) => Ok(()),
47 Err(e) if e.kind() == std::io::ErrorKind::AlreadyExists => Ok(()),
48 Err(e) => {
49 log_throw_error!(ErrCode::FileOperationError, "[FATAL][SA]Create dir failed! error is [{}]", e)
50 },
51 }
52 }
53
54 /// Delete user database directory.
delete_user_db_dir(user_id: i32) -> Result<()>55 pub fn delete_user_db_dir(user_id: i32) -> Result<()> {
56 if !is_user_db_dir_exist(user_id) {
57 return Ok(());
58 }
59
60 let path_str = construct_user_path(user_id);
61 let path: &Path = Path::new(&path_str);
62 match fs::remove_dir_all(path) {
63 Ok(_) => Ok(()),
64 Err(e) if e.kind() != std::io::ErrorKind::NotFound => Ok(()),
65 Err(e) => {
66 log_throw_error!(ErrCode::FileOperationError, "[FATAL][SA]Delete dir failed! error is [{}]", e)
67 },
68 }
69 }
70