log4js2/dist/appender/index.js

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Object.defineProperty(exports, "__esModule", { value: true });
const log_appender_1 = require("./log.appender");
const _appenderMethods = new Set();
_appenderMethods.add('append');
_appenderMethods.add('isActive');
_appenderMethods.add('setLogLevel');
_appenderMethods.add('setLayout');
_appenderMethods.add('getLayout');
_appenderMethods.add('format');
/** @type {Object} */
const _appenders = new Map();
/**
 * Validates that the appender
 *
 * @private
 * @function
 *
 * @params {APPENDER} appender
 * @throws {Error} if the appender is invalid
 */
const _validateAppender = (appender) => {
    // if we are running ES6, we can make sure it extends LogAppender
    // otherwise, it must be a function
    if (!(appender instanceof log_appender_1.LogAppender)) {
        return;
    }
    // instantiate the appender function
    const appenderObj = new appender();
    // ensure that the appender methods are present (and are functions)
    _appenderMethods.forEach((element) => {
        if (!appenderObj[element] || !(appenderObj[element] instanceof Function)) {
            throw new Error(`Invalid appender: missing/invalid method: ${element}`);
        }
    });
};
/**
 * Adds an appender to the appender queue
 *
 * @function
 *
 * @params {LogAppender} appender
 */
exports.addAppender = (appender, name) => {
    _validateAppender(appender);
    const appenderName = name || appender.appenderName || appender;
    // only put the appender into the set if it doesn't exist already
    if (!_appenders.has(appenderName)) {
        _appenders.set(appenderName, appender);
    }
};
exports.getAppender = (name) => _appenders.get(name);
exports.getAppenders = () => _appenders;
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