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Diffstat (limited to 'src/pybind/mgr/dashboard/frontend/src/app/shared/services/formatter.service.ts')
-rw-r--r-- | src/pybind/mgr/dashboard/frontend/src/app/shared/services/formatter.service.ts | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/src/pybind/mgr/dashboard/frontend/src/app/shared/services/formatter.service.ts b/src/pybind/mgr/dashboard/frontend/src/app/shared/services/formatter.service.ts new file mode 100644 index 000000000..b5e0b9475 --- /dev/null +++ b/src/pybind/mgr/dashboard/frontend/src/app/shared/services/formatter.service.ts @@ -0,0 +1,141 @@ +import { Injectable } from '@angular/core'; + +import _ from 'lodash'; + +@Injectable({ + providedIn: 'root' +}) +export class FormatterService { + format_number(n: any, divisor: number, units: string[], decimals: number = 1): string { + if (_.isString(n)) { + n = Number(n); + } + if (!_.isNumber(n)) { + return '-'; + } + if (_.isNaN(n)) { + return 'N/A'; + } + let unit = n < 1 ? 0 : Math.floor(Math.log(n) / Math.log(divisor)); + unit = unit >= units.length ? units.length - 1 : unit; + let result = _.round(n / Math.pow(divisor, unit), decimals).toString(); + if (result === '') { + return '-'; + } + if (units[unit] !== '') { + result = `${result} ${units[unit]}`; + } + return result; + } + + /** + * Converts a value from one set of units to another using a conversion factor + * @param n The value to be converted + * @param units The data units of the value + * @param targetedUnits The wanted data units to convert to + * @param conversionFactor The factor of convesion + * @param unitsArray An ordered array containing the data units + * @param decimals The number of decimals on the returned value + * @returns Returns a string of the given value formated to the targeted data units. + */ + formatNumberFromTo( + n: any, + units: any, + targetedUnits: string = '', + conversionFactor: number, + unitsArray: string[], + decimals: number = 1 + ): string { + if (_.isString(n)) { + n = Number(n); + } + if (!_.isNumber(n)) { + return '-'; + } + const unitsArrayLowerCase = unitsArray.map((str) => str.toLowerCase()); + if ( + !unitsArrayLowerCase.includes(units.toLowerCase()) || + !unitsArrayLowerCase.includes(targetedUnits.toLowerCase()) + ) { + return `${n} ${units}`; + } + const index = + unitsArrayLowerCase.indexOf(units.toLowerCase()) - + unitsArrayLowerCase.indexOf(targetedUnits.toLocaleLowerCase()); + const convertedN = + index > 0 + ? n * Math.pow(conversionFactor, index) + : n / Math.pow(conversionFactor, Math.abs(index)); + let result = _.round(convertedN, decimals).toString(); + result = `${result} ${targetedUnits}`; + return result; + } + + /** + * Convert the given value into bytes. + * @param {string} value The value to be converted, e.g. 1024B, 10M, 300KiB or 1ZB. + * @param error_value The value returned in case the regular expression did not match. Defaults to + * null. + * @returns Returns the given value in bytes without any unit appended or the defined error value + * in case xof an error. + */ + toBytes(value: string, error_value: number = null): number | null { + const base = 1024; + const units = ['b', 'k', 'm', 'g', 't', 'p', 'e', 'z', 'y']; + const m = RegExp('^(\\d+(.\\d+)?) ?([' + units.join('') + ']?(b|ib|B/s)?)?$', 'i').exec(value); + if (m === null) { + return error_value; + } + let bytes = parseFloat(m[1]); + if (_.isString(m[3])) { + bytes = bytes * Math.pow(base, units.indexOf(m[3].toLowerCase()[0])); + } + return Math.round(bytes); + } + + /** + * Converts `x ms` to `x` (currently) or `0` if the conversion fails + */ + toMilliseconds(value: string): number { + const pattern = /^\s*(\d+)\s*(ms)?\s*$/i; + const testResult = pattern.exec(value); + + if (testResult !== null) { + return +testResult[1]; + } + + return 0; + } + + /** + * Converts `x IOPS` to `x` (currently) or `0` if the conversion fails + */ + toIops(value: string): number { + const pattern = /^\s*(\d+)\s*(IOPS)?\s*$/i; + const testResult = pattern.exec(value); + + if (testResult !== null) { + return +testResult[1]; + } + + return 0; + } + + toOctalPermission(modes: any) { + const scopes = ['owner', 'group', 'others']; + let octalMode = ''; + for (const scope of scopes) { + let scopeValue = 0; + const mode = modes[scope]; + + if (mode) { + if (mode.includes('read')) scopeValue += 4; + if (mode.includes('write')) scopeValue += 2; + if (mode.includes('execute')) scopeValue += 1; + } + + octalMode += scopeValue.toString(); + } + return octalMode; + } +} |