webgme/src/client/js/Widgets/DiagramDesigner/Profiler.js

Web-based Generic Modeling Environment

/*globals define, console*/
/*jshint browser: true*/

/**
 * @author rkereskenyi / https://github.com/rkereskenyi
 */


define([], function () {

    'use strict';

    var Profiler,
        _profiles;

    Profiler = function (name) {
        this.clear();
        this._name = name;
    };

    Profiler.prototype.clear = function () {
        _profiles = {};
    };

    Profiler.prototype.startProfile = function (id) {
        if (_profiles.hasOwnProperty(id)) {
            //console.error('profile with ID: \'' + id + '\' already exists');
            _profiles[id].push({
                start: Date.now(),
                end: undefined
            });
        } else {
            _profiles[id] = [{
                start: Date.now(),
                end: undefined
            }];
        }
    };

    Profiler.prototype.endProfile = function (id) {
        var l;
        if (_profiles.hasOwnProperty(id)) {
            l = _profiles[id].length;
            _profiles[id][l - 1].end = Date.now();
        } else {
            console.error('profile with ID: \'' + id + '\' does not exist');
        }
    };

    Profiler.prototype.dump = function () {
        var elapsed,
            len,
            i,
            j;
        for (i in _profiles) {
            if (_profiles.hasOwnProperty(i)) {
                len = _profiles[i].length;
                for (j = 0; j < len; j += 1) {
                    elapsed = _profiles[i][j].end - _profiles[i][j].start;
                    console.log('Profile_' + this._name + ' \'' + i + '\' run_' + j + ': ' + elapsed + ' ms');
                }
            }
        }
    };

    return Profiler;
});