Viewing file:  logger.php (4.06 KB) -rw-r--r--
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<?php
if ( !class_exists('blcLogger') ):
define('BLC_LEVEL_DEBUG', 0);
define('BLC_LEVEL_INFO', 1);
define('BLC_LEVEL_WARNING', 2);
define('BLC_LEVEL_ERROR', 3);
/**
* Base class for loggers. Doesn't actually log anything anywhere.
*
* @package Broken Link Checker
* @author Janis Elsts
*/
class blcLogger {
protected $log_level = BLC_LEVEL_DEBUG;
function __construct($param = ''){
}
function blcLogger($param = ''){
$this->__construct($param);
}
function log($message, $object = null, $level = BLC_LEVEL_INFO){
}
function debug($message, $object = null){
$this->log($message, $object, BLC_LEVEL_DEBUG);
}
function info($message, $object = null){
$this->log($message, $object, BLC_LEVEL_INFO);
}
function warn($message, $object = null){
$this->log($message, $object, BLC_LEVEL_WARNING);
}
function error($message, $object = null){
$this->log($message, $object, BLC_LEVEL_ERROR);
}
function get_messages($min_level = BLC_LEVEL_DEBUG){
return array();
}
function get_log($min_level = BLC_LEVEL_DEBUG){
return array();
}
function clear(){
}
public function set_log_level($level) {
$this->log_level = $level;
}
}
/**
* A basic logger that uses WP options for permanent storage.
*
* Log entries are initially stored in memory and need to explicitly
* flushed to the database by calling blcCachedOptionLogger::save().
*
* @package Broken Link Checker
* @author Janis Elsts
*/
class blcCachedOptionLogger extends blcLogger {
var $option_name = '';
var $log;
var $filter_level = BLC_LEVEL_DEBUG;
function __construct($option_name = ''){
$this->option_name = $option_name;
$oldLog = get_option($this->option_name);
if ( is_array($oldLog) && !empty($oldLog) ){
$this->log = $oldLog;
} else {
$this->log = array();
}
}
function log($message, $object = null, $level = BLC_LEVEL_DEBUG){
$new_entry = array($level, $message, $object);
array_push($this->log, $new_entry);
}
function get_log($min_level = BLC_LEVEL_DEBUG){
$this->filter_level = $min_level;
return array_filter($this->log, array($this, '_filter_log'));
}
function _filter_log($entry){
return ( $entry[0] >= $this->filter_level );
}
function get_messages($min_level = BLC_LEVEL_DEBUG){
$messages = $this->get_log($min_level);
return array_map( array($this, '_get_log_message'), $messages );
}
function _get_log_message($entry){
return $entry[1];
}
function clear(){
$this->log = array();
delete_option($this->option_name);
}
function save(){
update_option($this->option_name, $this->log);
}
}
/**
* A dummy logger that doesn't log anything.
*/
class blcDummyLogger extends blcLogger { }
/**
* A basic logger that logs messages to a file.
*/
class blcFileLogger extends blcLogger {
protected $fileName;
public function __construct($fileName = ''){
$this->fileName = $fileName;
}
function log($message, $object = null, $level = BLC_LEVEL_INFO){
if ( $level < $this->log_level ) {
return;
}
$line = sprintf(
'[%1$s] %2$s %3$s',
date('Y-m-d H:i:s P'),
$this->get_level_string($level),
$message
);
if ( isset($object) ) {
$line .= ' ' . var_export($object, true);
}
$line .= "\n";
error_log($line, 3, $this->fileName);
}
function get_messages($min_level = BLC_LEVEL_DEBUG){
return array(__CLASS__ . ':get_messages() is not implemented');
}
function get_log($min_level = BLC_LEVEL_DEBUG){
return array(__CLASS__ . ':get_log() is not implemented');
}
public function clear(){
if ( is_file($this->fileName) && is_writable($this->fileName) ) {
$handle = fopen($this->fileName, 'w');
fclose($handle);
}
}
protected function get_level_string($level) {
switch ($level) {
case BLC_LEVEL_DEBUG:
return 'DEBUG:';
case BLC_LEVEL_ERROR:
return 'ERROR:';
case BLC_LEVEL_WARNING:
return 'WARN:';
case BLC_LEVEL_INFO:
return 'INFO:';
}
return 'LOG:';
}
}
endif;
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