Commit | Line | Data |
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edd13439 | 1 | // Copyright Jerome Benoit. 2021-2023. All Rights Reserved. |
c27c3eee | 2 | |
130783a7 | 3 | import fs from 'node:fs'; |
8114d10e | 4 | |
268a74bb | 5 | import { FileType, type Statistics } from '../../types'; |
1227a6f1 | 6 | import { AsyncLock, AsyncLockType, Constants, FileUtils, Utils } from '../../utils'; |
2896e06d | 7 | import { Storage } from '../internal'; |
72f041bd | 8 | |
100a5301 | 9 | export class JsonFileStorage extends Storage { |
2a370053 JB |
10 | private fd: number | null = null; |
11 | ||
1f5df42a JB |
12 | constructor(storageUri: string, logPrefix: string) { |
13 | super(storageUri, logPrefix); | |
14 | this.dbName = this.storageUri.pathname; | |
72f041bd JB |
15 | } |
16 | ||
17 | public storePerformanceStatistics(performanceStatistics: Statistics): void { | |
2a370053 | 18 | this.checkPerformanceRecordsFile(); |
dd485b56 | 19 | AsyncLock.acquire(AsyncLockType.performance) |
1227a6f1 JB |
20 | .then(() => { |
21 | const fileData = fs.readFileSync(this.dbName, 'utf8'); | |
22 | const performanceRecords: Statistics[] = fileData | |
23 | ? (JSON.parse(fileData) as Statistics[]) | |
24 | : []; | |
25 | performanceRecords.push(performanceStatistics); | |
26 | fs.writeFileSync( | |
27 | this.dbName, | |
28 | Utils.JSONStringifyWithMapSupport(performanceRecords, 2), | |
29 | 'utf8' | |
30 | ); | |
31 | }) | |
32 | .catch((error) => { | |
33 | FileUtils.handleFileException( | |
34 | this.dbName, | |
35 | FileType.PerformanceRecords, | |
36 | error as NodeJS.ErrnoException, | |
37 | this.logPrefix | |
38 | ); | |
c63c21bc | 39 | }) |
1227a6f1 | 40 | .finally(() => { |
dd485b56 | 41 | AsyncLock.release(AsyncLockType.performance).catch(Constants.EMPTY_FUNCTION); |
1227a6f1 | 42 | }); |
72f041bd | 43 | } |
b652b0c3 | 44 | |
2a370053 | 45 | public open(): void { |
b652b0c3 | 46 | try { |
4c5e87ae | 47 | if (Utils.isNullOrUndefined(this?.fd)) { |
a6ceb16a JB |
48 | this.fd = fs.openSync(this.dbName, 'a+'); |
49 | } | |
b652b0c3 | 50 | } catch (error) { |
e7aeea18 | 51 | FileUtils.handleFileException( |
e7aeea18 | 52 | this.dbName, |
7164966d JB |
53 | FileType.PerformanceRecords, |
54 | error as NodeJS.ErrnoException, | |
55 | this.logPrefix | |
e7aeea18 | 56 | ); |
2a370053 JB |
57 | } |
58 | } | |
59 | ||
60 | public close(): void { | |
61 | try { | |
a6ceb16a | 62 | if (this?.fd) { |
2a370053 JB |
63 | fs.closeSync(this.fd); |
64 | this.fd = null; | |
65 | } | |
66 | } catch (error) { | |
e7aeea18 | 67 | FileUtils.handleFileException( |
e7aeea18 | 68 | this.dbName, |
7164966d JB |
69 | FileType.PerformanceRecords, |
70 | error as NodeJS.ErrnoException, | |
71 | this.logPrefix | |
e7aeea18 | 72 | ); |
2a370053 JB |
73 | } |
74 | } | |
75 | ||
76 | private checkPerformanceRecordsFile(): void { | |
73d09045 | 77 | if (!this?.fd) { |
e7aeea18 JB |
78 | throw new Error( |
79 | `${this.logPrefix} Performance records '${this.dbName}' file descriptor not found` | |
80 | ); | |
b652b0c3 JB |
81 | } |
82 | } | |
72f041bd | 83 | } |