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<?php
/*
* Copyright (c) 2014 Mathieu Parent <sathieu@debian.org>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
namespace Pkgtools\Base;
/**
* This class provide logging facility.
* It is loosely inspired by python's logging
*
* @copyright Copyright (c) 2014 Mathieu Parent <sathieu@debian.org>
* @author Mathieu Parent <sathieu@debian.org>
* @license Expat http://www.jclark.com/xml/copying.txt
*/
class Logger {
/**
* Logging levels
*/
const CRITICAL = 50;
const ERROR = 40;
const WARNING = 30;
const INFO = 20;
const DEBUG = 10;
const NOTSET = 0;
/**
* Current log level
*/
private static $_level = self::WARNING;
/**
* Constructor
*
* As this class should not be instanciated, this fails
*/
final public function __construct() {
throw new \LogicException(__class__.' could not be instanciated');
}
/**
* Set log level
*
* @param int $level
*/
final public static function setLevel($level) {
self::$_level = (int) $level;
}
/**
* Get log level
*/
final public static function getEffectiveLevel() {
return self::$_level;
}
/**
* Log a message
*
* @param int $level
* @param string $message
* @param string $args ...
*/
final public static function log($level, $message) {
if ($level >= self::$_level) {
$args = func_get_args();
array_shift($args); // $level
if ($handle = fopen("php://stderr", "a")) {
fwrite($handle, call_user_func_array('sprintf', $args) . "\n");
fclose($handle);
}
}
}
/**
* Logs a message with level DEBUG
*
* @param string $message
* @param string $args ...
*/
final public static function debug($message) {
$args = func_get_args();
array_unshift($args, self::DEBUG);
call_user_func_array('self::log', $args);
}
/**
* Logs a message with level INFO
*
* @param string $message
* @param string $args ...
*/
final public static function info($message) {
$args = func_get_args();
array_unshift($args, self::INFO);
call_user_func_array('self::log', $args);
}
/**
* Logs a message with level WARNING
*
* @param string $message
* @param string $args ...
*/
final public static function warning($message) {
$args = func_get_args();
array_unshift($args, self::WARNING);
call_user_func_array('self::log', $args);
}
/**
* Logs a message with level ERROR
*
* @param string $message
* @param string $args ...
*/
final public static function error($message) {
$args = func_get_args();
array_unshift($args, self::ERROR);
call_user_func_array('self::log', $args);
}
/**
* Logs a message with level CRITICAL
*
* @param string $message
* @param string $args ...
*/
final public static function critical($message) {
$args = func_get_args();
array_unshift($args, self::CRITICAL);
call_user_func_array('self::log', $args);
}
}
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