79 lines
2.1 KiB
JavaScript
79 lines
2.1 KiB
JavaScript
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var levels = require('./levels'),
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util = require('util'),
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events = require('events'),
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DEFAULT_CATEGORY = '[default]';
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/**
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* Models a logging event.
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* @constructor
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* @param {String} categoryName name of category
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* @param {Log4js.Level} level level of message
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* @param {Array} data objects to log
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* @param {Log4js.Logger} logger the associated logger
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* @author Seth Chisamore
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*/
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function LoggingEvent (categoryName, level, data, logger) {
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this.startTime = new Date();
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this.categoryName = categoryName;
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this.data = data;
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this.level = level;
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this.logger = logger;
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}
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/**
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* Logger to log messages.
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* use {@see Log4js#getLogger(String)} to get an instance.
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* @constructor
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* @param name name of category to log to
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* @author Stephan Strittmatter
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*/
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function Logger (name, level) {
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this.category = name || DEFAULT_CATEGORY;
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if (! this.level) {
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this.__proto__.level = levels.TRACE;
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}
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}
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util.inherits(Logger, events.EventEmitter);
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Logger.DEFAULT_CATEGORY = DEFAULT_CATEGORY;
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Logger.prototype.setLevel = function(level) {
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this.level = levels.toLevel(level, this.level || levels.TRACE);
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};
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Logger.prototype.removeLevel = function() {
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delete this.level;
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};
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Logger.prototype.log = function() {
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var args = Array.prototype.slice.call(arguments)
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, logLevel = args.shift()
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, loggingEvent = new LoggingEvent(this.category, logLevel, args, this);
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this.emit("log", loggingEvent);
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};
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Logger.prototype.isLevelEnabled = function(otherLevel) {
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return this.level.isLessThanOrEqualTo(otherLevel);
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};
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['Trace','Debug','Info','Warn','Error','Fatal'].forEach(
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function(levelString) {
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var level = levels.toLevel(levelString);
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Logger.prototype['is'+levelString+'Enabled'] = function() {
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return this.isLevelEnabled(level);
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};
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Logger.prototype[levelString.toLowerCase()] = function () {
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if (this.isLevelEnabled(level)) {
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var args = Array.prototype.slice.call(arguments);
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args.unshift(level);
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Logger.prototype.log.apply(this, args);
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}
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};
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}
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);
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exports.LoggingEvent = LoggingEvent;
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exports.Logger = Logger;
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