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<?php
/**
* @package com_zoo
* @author YOOtheme http://www.yootheme.com
* @copyright Copyright (C) YOOtheme GmbH
* @license http://www.gnu.org/licenses/gpl.html GNU/GPL
*/
/**
* Log helper class
*
* @package Framework.Helpers
*/
class LogHelper extends AppHelper {
/**
* The event to trigger when loggin
*
* @var string
* @since 1.0.0
*/
protected $_event = 'app:log';
/**
* Class Constructor
*
* @param App $app A reference to the global App object
*/
public function __construct($app) {
parent::__construct($app);
// load class
$this->app->loader->register('AppLogger', 'classes:logger.php');
}
/**
* Log a success message
*
* @param string $message The message to log
* @param string $type The type of the message
*
* @see _notify
*
* @since 1.0.0
*/
public function success($message, $type = null) {
$this->_notify(AppLogger::LEVEL_SUCCESS, $message, $type);
}
/**
* Log an info message
*
* @param string $message The message to log
* @param string $type The type of the message
*
* @see _notify
*
* @since 1.0.0
*/
public function info($message, $type = null) {
$this->_notify(AppLogger::LEVEL_INFO, $message, $type);
}
/**
* Log a notice message
*
* @param string $message The message to log
* @param string $type The type of the message
*
* @see _notify
*
* @since 1.0.0
*/
public function notice($message, $type = null) {
$this->_notify(AppLogger::LEVEL_NOTICE, $message, $type);
}
/**
* Log a warning message
*
* @param string $message The message to log
* @param string $type The type of the message
*
* @see _notify
*
* @since 1.0.0
*/
public function warning($message, $type = null) {
$this->_notify(AppLogger::LEVEL_WARNING, $message, $type);
}
/**
* Log an error message
*
* @param string $message The message to log
* @param string $type The type of the message
*
* @see _notify
*
* @since 1.0.0
*/
public function error($message, $type = null) {
$this->_notify(AppLogger::LEVEL_ERROR, $message, $type);
}
/**
* Log a debug message
*
* @param string $message The message to log
* @param string $type The type of the message
*
* @see _notify
*
* @since 1.0.0
*/
public function debug($message, $type = null) {
$this->_notify(AppLogger::LEVEL_DEBUG, $message, $type);
}
/**
* Create a logger object
*
* @param string $type The type of logger to create
* @param array $args The parameters to pass to the logger class
*
* @return AppLogger The logger object
*
* @since 1.0.0
*/
public function createLogger($type, $args = array()) {
// load data class
$class = $type.'Logger';
$this->app->loader->register($class, 'loggers:'.strtolower($type).'.php');
// use reflection for logger creation
if (count($args) > 0) {
$reflection = new ReflectionClass($class);
$logger = $reflection->newInstanceArgs($args);
} else {
$logger = new $class();
}
return $this->addLogger($logger);
}
/**
* Connect the logger object to the log event
*
* @param AppLogger $logger The logger object
*
* @return AppLogger The logger object
*
* @since 1.0.0
*/
public function addLogger($logger) {
// set app
$logger->app = $this->app;
// add logger to application log event
$this->app->event->dispatcher->connect($this->_event, array($logger, 'listen'));
return $logger;
}
/**
* Disconnect the logger object from the event
*
* @param AppLogger $logger The logger object
*
* @return AppLogger The logger object
*
* @since 1.0.0
*/
public function removeLogger($logger) {
// remove logger from application log event
$this->app->event->dispatcher->disconnect($this->_event, array($logger, 'listen'));
return $logger;
}
/**
* Trigger the event with the log message
*
* @param int $level The level of the log
* @param string $message The log message
* @param string $type The type of the log
*
* @since 1.0.0
*/
protected function _notify($level, $message, $type = null) {
// auto-detect type
if ($type == null) {
// get backtrace
$backtrace = debug_backtrace();
if (isset($backtrace[2]['class'])) {
$type = $backtrace[2]['class'];
} elseif (isset($backtrace[2]['object'])) {
$type = get_class($backtrace[2]['object']);
}
}
// fire event
$this->app->event->dispatcher->notify($this->app->event->create($this, $this->_event, compact('level', 'message', 'type')));
}
}