chrome/browser/resources/net_internals/cros_log_entry.js

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 /**
   6  * This class stores information of one single entry of log
   7  */
   8
   9 var CrosLogEntry = function() {
  10
  11   /**
  12     * @constructor
  13     */
  14   function CrosLogEntry() {
  15     // The entry is visible by default
  16     this.visibility = true;
  17   }
  18
  19   CrosLogEntry.prototype = {
  20     //------------------------------------------------------------------------
  21     // Log input text parser
  22     // Parses network log into tokens like time, name, pid
  23     // and description.
  24     //--------------------------------------------------------------------------
  25     tokenizeNetworkLog: function(NetworkLogEntry) {
  26       var tokens = NetworkLogEntry.split(' ');
  27       var timeTokens = tokens[0].split(/[\s|\:|\-|T|\.]/);
  28
  29       // List of all parameters for Date Object
  30       var year = timeTokens[0];
  31       var month = timeTokens[1];
  32       var day = timeTokens[2];
  33       var hour = timeTokens[3];
  34       var minute = timeTokens[4];
  35       var second = timeTokens[5];
  36       var millisecond = (parseInt(timeTokens[6]) / 1000).toFixed(0);
  37       this.time = new Date(year, month, day, hour, minute,
  38                            second, millisecond);
  39
  40       // Parses for process name and ID.
  41       var process = tokens[2];
  42       if (hasProcessID(process)) {
  43         var processTokens = process.split(/[\[|\]]/);
  44         this.processName = processTokens[0];
  45         this.processID = processTokens[1];
  46       } else {
  47         this.processName = process.split(/\:/)[0];
  48         this.processID = 'Unknown';
  49       }
  50
  51       // Gets level of the log: error|warning|info|unknown if failed.
  52       this.level = hasLevelInfo(tokens[3]);
  53
  54       // Treats the rest of the entry as description.
  55       var descriptionStartPoint = NetworkLogEntry.indexOf(tokens[2]) +
  56           tokens[2].length;
  57       this.description = NetworkLogEntry.substr(descriptionStartPoint);
  58     },
  59
  60     // Represents the Date object as a string.
  61     getTime: function() {
  62       return this.time.getMonth() + '/' + this.time.getDate() +
  63           ' ' + this.time.getHours() + ':' + this.time.getMinutes() +
  64           ':' + this.time.getSeconds() + ':' + this.time.getMilliseconds();
  65     }
  66   };
  67
  68   /**
  69    * Helper function
  70    * Takes a token as input and searches for '['.
  71    * We assume if the token contains '[' it contains a process ID.
  72    *
  73    * @param {string} token A token from log
  74    * @return {boolean} true if '[' is found
  75    */
  76   var hasProcessID = function(token) {
  77     return token != undefined && token.indexOf('[') != -1;
  78   }
  79
  80   /**
  81    * Helper function
  82    * Checks if the input token contains level information.
  83    *
  84    * @param {string} token A token from log
  85    * @return {string} Level found in the token
  86    */
  87   var hasLevelInfo = function(token) {
  88     if (token == undefined)
  89       return 'Unknown';
  90     if (token.toLowerCase().indexOf('err') != -1) {
  91       return 'Error';
  92     } else if (token.toLowerCase().indexOf('warn') != -1) {
  93       return 'Warning';
  94     } else if (token.toLowerCase().indexOf('info') != -1) {
  95       return 'Info';
  96     } else {
  97       return 'Unknown';
  98     }
  99   }
 100
 101   return CrosLogEntry;
 102 }();