<?php

/**

 * Zend Framework

 *

 * LICENSE

 *

 * This source file is subject to the new BSD license that is bundled

 * with this package in the file LICENSE.txt.

 * It is also available through the world-wide-web at this URL:

 * http://framework.zend.com/license/new-bsd

 * If you did not receive a copy of the license and are unable to

 * obtain it through the world-wide-web, please send an email

 * to license@zend.com so we can send you a copy immediately.

 *

 * @category   Zend

 * @package    Zend_Log

 * @subpackage Writer

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 * @version    $Id: ZendMonitor.php 23351 2010-11-16 18:09:45Z matthew $

 */

/** Zend_Log_Writer_Abstract */

require_once 'Zend/Log/Writer/Abstract.php';

/**

 * @category   Zend

 * @package    Zend_Log

 * @subpackage Writer

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 * @version    $Id: ZendMonitor.php 23351 2010-11-16 18:09:45Z matthew $

 */

class Zend_Log_Writer_ZendMonitor extends Zend_Log_Writer_Abstract

{

    /**

     * Is Zend Monitor enabled?

     * @var bool

     */

    protected $_isEnabled = true;

    /**

     * Is this for a Zend Server intance?

     * @var bool

     */

    protected $_isZendServer = false;

    /**

     * @throws Zend_Log_Exception if Zend Monitor extension not present

     */

    public function __construct()

    {

        if (!function_exists('monitor_custom_event')) {

            $this->_isEnabled = false;

        }

        if (function_exists('zend_monitor_custom_event')) {

            $this->_isZendServer = true;

        }

    }

    /**

     * Create a new instance of Zend_Log_Writer_ZendMonitor

     *

     * @param  array|Zend_Config $config

     * @return Zend_Log_Writer_Syslog

     * @throws Zend_Log_Exception

     */

    static public function factory($config)

    {

        return new self();

    }

    /**

     * Is logging to this writer enabled?

     *

     * If the Zend Monitor extension is not enabled, this log writer will

     * fail silently. You can query this method to determine if the log

     * writer is enabled.

     *

     * @return bool

     */

    public function isEnabled()

    {

        return $this->_isEnabled;

    }

    /**

     * Log a message to this writer.

     *

     * @param  array $event  log data event

     * @return void

     */

    public function write($event)

    {

        if (!$this->isEnabled()) {

            return;

        }

        parent::write($event);

    }

    /**

     * Write a message to the log.

     *

     * @param  array  $event  log data event

     * @return void

     */

    protected function _write($event)

    {

        $priority = $event['priority'];

        $message  = $event['message'];

        unset($event['priority'], $event['message']);

        if (!empty($event)) {

            if ($this->_isZendServer) {

                // On Zend Server; third argument should be the event

                zend_monitor_custom_event($priority, $message, $event);

            } else {

                // On Zend Platform; third argument is severity -- either 

                // 0 or 1 -- and fourth is optional (event)

                // Severity is either 0 (normal) or 1 (severe); classifying

                // notice, info, and debug as "normal", and all others as 

                // "severe"

                monitor_custom_event($priority, $message, ($priority > 4) ? 0 : 1, $event);

            }

        } else {

            monitor_custom_event($priority, $message);

        }

    }

}