-// Copyright Jerome Benoit. 2021. All Rights Reserved.
+// Copyright Jerome Benoit. 2021-2023. All Rights Reserved.
+
+import { closeSync, existsSync, mkdirSync, openSync, readFileSync, writeFileSync } from 'node:fs';
+import { dirname } from 'node:path';
-import Constants from '../../utils/Constants';
-import FileUtils from '../../utils/FileUtils';
-import Statistics from '../../types/Statistics';
import { Storage } from './Storage';
-import fs from 'fs';
-import lockfile from 'proper-lockfile';
+import { BaseError } from '../../exception';
+import { FileType, type Statistics } from '../../types';
+import {
+ AsyncLock,
+ AsyncLockType,
+ Constants,
+ JSONStringifyWithMapSupport,
+ handleFileException,
+ isNullOrUndefined,
+} from '../../utils';
export class JsonFileStorage extends Storage {
private fd: number | null = null;
public storePerformanceStatistics(performanceStatistics: Statistics): void {
this.checkPerformanceRecordsFile();
- lockfile.lock(this.dbName, { stale: 5000, retries: 3 })
- .then(async (release) => {
- try {
- const fileData = fs.readFileSync(this.dbName, 'utf8');
- const performanceRecords: Statistics[] = fileData ? JSON.parse(fileData) as Statistics[] : [];
- performanceRecords.push(performanceStatistics);
- fs.writeFileSync(
- this.dbName,
- JSON.stringify(performanceRecords,
- (key, value) => {
- if (value instanceof Map) {
- return {
- dataType: 'Map',
- value: [...value]
- };
- }
- return value as Statistics;
- },
- 2),
- 'utf8'
- );
- } catch (error) {
- FileUtils.handleFileException(this.logPrefix, Constants.PERFORMANCE_RECORDS_FILETYPE, this.dbName, error as NodeJS.ErrnoException);
- }
- await release();
+ AsyncLock.acquire(AsyncLockType.performance)
+ .then(() => {
+ const fileData = readFileSync(this.dbName, 'utf8');
+ const performanceRecords: Statistics[] = fileData
+ ? (JSON.parse(fileData) as Statistics[])
+ : [];
+ performanceRecords.push(performanceStatistics);
+ writeFileSync(this.dbName, JSONStringifyWithMapSupport(performanceRecords, 2), 'utf8');
})
- .catch(() => { /* This is intentional */ });
+ .catch((error) => {
+ handleFileException(
+ this.dbName,
+ FileType.PerformanceRecords,
+ error as NodeJS.ErrnoException,
+ this.logPrefix,
+ );
+ })
+ .finally(() => {
+ AsyncLock.release(AsyncLockType.performance).catch(Constants.EMPTY_FUNCTION);
+ });
}
public open(): void {
try {
- if (!this?.fd) {
- this.fd = fs.openSync(this.dbName, 'a+');
+ if (isNullOrUndefined(this?.fd)) {
+ if (!existsSync(dirname(this.dbName))) {
+ mkdirSync(dirname(this.dbName), { recursive: true });
+ }
+ this.fd = openSync(this.dbName, 'a+');
}
} catch (error) {
- FileUtils.handleFileException(this.logPrefix, Constants.PERFORMANCE_RECORDS_FILETYPE, this.dbName, error as NodeJS.ErrnoException);
+ handleFileException(
+ this.dbName,
+ FileType.PerformanceRecords,
+ error as NodeJS.ErrnoException,
+ this.logPrefix,
+ );
}
}
public close(): void {
try {
if (this?.fd) {
- fs.closeSync(this.fd);
+ closeSync(this.fd);
this.fd = null;
}
} catch (error) {
- FileUtils.handleFileException(this.logPrefix, Constants.PERFORMANCE_RECORDS_FILETYPE, this.dbName, error as NodeJS.ErrnoException);
+ handleFileException(
+ this.dbName,
+ FileType.PerformanceRecords,
+ error as NodeJS.ErrnoException,
+ this.logPrefix,
+ );
}
}
private checkPerformanceRecordsFile(): void {
if (!this?.fd) {
- throw new Error(`${this.logPrefix} Performance records '${this.dbName}' file descriptor not found`);
+ throw new BaseError(
+ `${this.logPrefix} Performance records '${this.dbName}' file descriptor not found`,
+ );
}
}
}