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(); |
1227a6f1 JB |
19 | const asyncLock = AsyncLock.getInstance(AsyncLockType.performance); |
20 | asyncLock | |
21 | .acquire() | |
22 | .then(() => { | |
23 | const fileData = fs.readFileSync(this.dbName, 'utf8'); | |
24 | const performanceRecords: Statistics[] = fileData | |
25 | ? (JSON.parse(fileData) as Statistics[]) | |
26 | : []; | |
27 | performanceRecords.push(performanceStatistics); | |
28 | fs.writeFileSync( | |
29 | this.dbName, | |
30 | Utils.JSONStringifyWithMapSupport(performanceRecords, 2), | |
31 | 'utf8' | |
32 | ); | |
33 | }) | |
34 | .catch((error) => { | |
35 | FileUtils.handleFileException( | |
36 | this.dbName, | |
37 | FileType.PerformanceRecords, | |
38 | error as NodeJS.ErrnoException, | |
39 | this.logPrefix | |
40 | ); | |
c63c21bc | 41 | }) |
1227a6f1 JB |
42 | .finally(() => { |
43 | asyncLock.release().catch(Constants.EMPTY_FUNCTION); | |
44 | }); | |
72f041bd | 45 | } |
b652b0c3 | 46 | |
2a370053 | 47 | public open(): void { |
b652b0c3 | 48 | try { |
4c5e87ae | 49 | if (Utils.isNullOrUndefined(this?.fd)) { |
a6ceb16a JB |
50 | this.fd = fs.openSync(this.dbName, 'a+'); |
51 | } | |
b652b0c3 | 52 | } catch (error) { |
e7aeea18 | 53 | FileUtils.handleFileException( |
e7aeea18 | 54 | this.dbName, |
7164966d JB |
55 | FileType.PerformanceRecords, |
56 | error as NodeJS.ErrnoException, | |
57 | this.logPrefix | |
e7aeea18 | 58 | ); |
2a370053 JB |
59 | } |
60 | } | |
61 | ||
62 | public close(): void { | |
63 | try { | |
a6ceb16a | 64 | if (this?.fd) { |
2a370053 JB |
65 | fs.closeSync(this.fd); |
66 | this.fd = null; | |
67 | } | |
68 | } catch (error) { | |
e7aeea18 | 69 | FileUtils.handleFileException( |
e7aeea18 | 70 | this.dbName, |
7164966d JB |
71 | FileType.PerformanceRecords, |
72 | error as NodeJS.ErrnoException, | |
73 | this.logPrefix | |
e7aeea18 | 74 | ); |
2a370053 JB |
75 | } |
76 | } | |
77 | ||
78 | private checkPerformanceRecordsFile(): void { | |
73d09045 | 79 | if (!this?.fd) { |
e7aeea18 JB |
80 | throw new Error( |
81 | `${this.logPrefix} Performance records '${this.dbName}' file descriptor not found` | |
82 | ); | |
b652b0c3 JB |
83 | } |
84 | } | |
72f041bd | 85 | } |