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Reuse cds.log instead of custom logging logic (#265)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,74 +1,16 @@ | ||
| /** @enum {number} */ | ||
| const Levels = { | ||
| TRACE: 1, | ||
| DEBUG: 2, | ||
| INFO: 3, | ||
| WARNING: 4, | ||
| ERROR: 8, | ||
| CRITICAL: 16, | ||
| NONE: 32, | ||
| } | ||
|
|
||
| class Logger { | ||
| constructor() { | ||
| this.mask = 0 | ||
| const lvls = Object.keys(Levels) | ||
| for (let i = 0; i < lvls.length - 1; i++) { | ||
| // -1 to ignore NONE | ||
| const level = lvls[i] | ||
| this[level.toLowerCase()] = function (message) { this._log(level, message) }.bind(this) | ||
| } | ||
| } | ||
|
|
||
| // only temporarily to disable those warnings... | ||
| //warning(s) {}; error(s) {}; info(s) {}; debug(s) {}; | ||
|
|
||
| /** | ||
| * Add all log levels starting at level. | ||
| * @param {number} baseLevel - level to start from. | ||
| */ | ||
| addFrom(baseLevel) { | ||
| const vals = Object.values(Levels) | ||
| const highest = vals[vals.length - 1] | ||
| for (let l = Math.log2(baseLevel); Math.pow(2, l) <= highest; l++) { | ||
| this.add(Math.pow(2, l)) | ||
| } | ||
| } | ||
| const cds = require('@sap/cds') | ||
|
|
||
| /** | ||
| * Adds a log level to react to. | ||
| * @param {number} level - the level to react to. | ||
| */ | ||
| add(level) { | ||
| this.mask = this.mask | level | ||
| } | ||
|
|
||
| /** | ||
| * Ignores a log level. | ||
| * @param {number} level - the level to ignore. | ||
| */ | ||
| ignore(level) { | ||
| this.mask = this.mask ^ level | ||
| } | ||
|
|
||
| /** | ||
| * Attempts to log a message. | ||
| * Only iff levelName is a valid log level | ||
| * and the corresponding number if part of mask, | ||
| * the message gets logged. | ||
| * @param {Levels} levelName - name of the log level. | ||
| * @param {string} message - message to log. | ||
| */ | ||
| _log(levelName, message) { | ||
| const level = Levels[levelName] | ||
| if (level && (this.mask & level) === level) { | ||
| // eslint-disable-next-line no-console | ||
| console.log(`[${levelName}]`, message) | ||
| } | ||
| } | ||
| } | ||
| const _keyFor = value => Object.entries(cds.log.levels).find(([,val]) => val === value)?.[0] | ||
|
|
||
| // workaround until retroactively setting log level to 0 is possible | ||
| cds.log('cds-typer', _keyFor(cds.log.levels.SILENT)) | ||
| module.exports = { | ||
| Levels, | ||
| Logger, | ||
| _keyFor, | ||
| setLevel: level => { cds.log('cds-typer', level) }, | ||
| deprecated: { | ||
| WARNING: 'WARN', | ||
| CRITICAL: 'ERROR', | ||
| NONE: 'SILENT' | ||
| }, | ||
| get LOG () { return cds.log('cds-typer') } | ||
| } |
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