triviality-logger/ProcessLogger.js

Typescript loggers with an interface that support composition

"use strict";
var __extends = (this && this.__extends) || (function () {
    var extendStatics = function (d, b) {
        extendStatics = Object.setPrototypeOf ||
            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
        return extendStatics(d, b);
    };
    return function (d, b) {
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
    result["default"] = mod;
    return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
var LoggerInterface_1 = require("./LoggerInterface");
var AbstractLogLevelLogger_1 = require("./AbstractLogLevelLogger");
var os = __importStar(require("os"));
var util = __importStar(require("util"));
/**
 * With format option like console. Handy if you want to control eol.
 *
 * https://nodejs.org/api/util.html#util_util_format_format_args
 */
var ProcessLogger = /** @class */ (function (_super) {
    __extends(ProcessLogger, _super);
    function ProcessLogger(process, eol) {
        if (eol === void 0) { eol = os.EOL; }
        var _this = _super.call(this) || this;
        _this.process = process;
        _this.eol = eol;
        return _this;
    }
    ProcessLogger.prototype.log = function (type, message) {
        var optionalParams = [];
        for (var _i = 2; _i < arguments.length; _i++) {
            optionalParams[_i - 2] = arguments[_i];
        }
        if (type === LoggerInterface_1.LogLevel.error) {
            this.process.stderr.write(util.format.apply(util, [message].concat(optionalParams)) + this.eol);
            return;
        }
        this.process.stdout.write(util.format.apply(util, [message].concat(optionalParams)) + this.eol);
    };
    return ProcessLogger;
}(AbstractLogLevelLogger_1.AbstractLogLevelLogger));
exports.ProcessLogger = ProcessLogger;
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