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<!DOCTYPE html>
<html>
<?php

/**
 * Matomo - free/libre analytics platform
 *
 * @link    https://matomo.org
 * @license https://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
 */
namespace Piwik\Tracker\Visit;

use Piwik\Piwik;
use Piwik\Tracker\Visit;
use Piwik\Tracker\VisitInterface;
use Exception;
class Factory
{
    /**
     * Returns the Tracker_Visit object.
     * This method can be overwritten to use a different Tracker_Visit object
     *
     * @throws Exception
     * @return \Piwik\Tracker\Visit
     */
    public static function make()
    {
        $visit = null;
        /**
         * Triggered before a new **visit tracking object** is created. Subscribers to this
         * event can force the use of a custom visit tracking object that extends from
         * {@link Piwik\Tracker\VisitInterface}.
         *
         * @param \Piwik\Tracker\VisitInterface &$visit Initialized to null, but can be set to
         *                                              a new visit object. If it isn't modified
         *                                              Piwik uses the default class.
         */
        Piwik::postEvent('Tracker.makeNewVisitObject', array(&$visit));
        if (!isset($visit)) {
            $visit = new Visit();
        } elseif (!$visit instanceof VisitInterface) {
            throw new Exception("The Visit object set in the plugin must implement VisitInterface");
        }
        return $visit;
    }
}
