git.r.bdr.sh - rbdr/cologne/blob - lib/loggers/file.js

   1 var fs = require('fs');
   2
   3 Class(Cobalt.Logger, 'File')({
   4   prototype : {
   5     file : null,
   6     formatterOpts : {},
   7
   8     init : function (config) {
   9       if (config) {
  10         for (property in config) {
  11           this[property] = config[property];
  12         }
  13       }
  14
  15       this._stream = fs.createWriteStream(this.file, {flags: 'a'});
  16     },
  17
  18     log : function () {
  19       var i, message = [], severity;
  20
  21       for (i = 0; i < arguments.length; i++) {
  22         // We're not formatting objects for now.
  23
  24         if (!arguments[i].__skipConsole && !arguments[i].message.__skipConsole) {
  25           message.push(this.format(arguments[i]));
  26           if (!severity) {
  27             severity = arguments[i]._level
  28           }
  29         }
  30       }
  31
  32       for (i = 0; i < message.length; i++) {
  33         this._stream.write(message[i] + '\n');
  34       }
  35     },
  36
  37     format : function (logObject) {
  38       if (this.formatter) {
  39         if (typeof logObject.message === 'object') {
  40           return logObject.message;
  41         }
  42         return this.formatter.format(logObject, this.formatterOpts);
  43       }
  44
  45       return Cobalt.stringify(logObject);
  46     }
  47   }
  48 });