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MySQLDumper/library/Msd/Log.php

206 Zeilen
5,4 KiB
PHP

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<?php
/**
* This file is part of MySQLDumper released under the GNU/GPL 2 license
* http://www.mysqldumper.net
*
* @package MySQLDumper
* @subpackage Log
* @version SVN: $Rev$
* @author $Author$
*/
/**
* Log Class
*
* @package MySQLDumper
* @subpackage Log
*/
class Msd_Log
{
// Define constants
const PHP = 'PHP-Log';
const PERL = 'PERL-Log';
const PERL_COMPLETE = 'PERL-Complete-Log';
const ERROR = 'Error-Log';
// Define static Instance
private static $_instance = NULL;
private $_paths = NULL;
/**
* Init file handles
*
* @return void
*/
public function __construct()
{
// define instance handler
$this->handle = array();
$this->handle[self::PHP] = false;
$this->handle[self::PERL] = false;
$this->handle[self::PERL_COMPLETE] = false;
$this->handle[self::ERROR] = false;
// get config
$config = Msd_Configuration::getInstance();
$this->_paths = (object)$config->get('paths');
}
/**
* Close all open file handles on destruct
*
* @return void
*/
public function __destruct()
{
if ($this->handle[self::PHP]) {
$this->_close(self::PHP);
}
if (is_resource($this->handle[self::PERL])) {
$this->_close(self::PERL);
}
if (is_resource($this->handle[self::PERL_COMPLETE])) {
$this->_close(self::PERL_COMPLETE);
}
if (is_resource($this->handle[self::ERROR])) {
$this->_close(self::ERROR);
}
}
/**
* Close a filehandle
*
* @param Loge $file The file to close
*/
private function _close($file)
{
$filename = $this->getFile($file);
$extension = pathinfo($filename, PATHINFO_EXTENSION);
if ($extension == 'gz') {
gzclose($this->handle[$file]);
} else {
fclose($this->handle[$file]);
}
}
/**
* Get an instance of Msd_Log
*
* @return Msd_Log
*/
public static function getInstance()
{
if (self::$_instance === NULL) {
self::$_instance = new self;
}
return self::$_instance;
}
/**
* Get an instance of Msd_Log for a special type
*
* Allowed types are self::PHP, self::PERL, self::PERL_COMPLETE or
* self::ERROR
*
* @param Msd_Log $type
*
* @return Msd_Log
*/
public function getLogInstance($type)
{
if (!isset($this->_logInstance[$type])) {
$writer = new Zend_Log_Writer_Stream($this->getFile($type));
$formatter =
new Zend_Log_Formatter_Simple("%timestamp% %message%\n");
$writer->setFormatter($formatter);
$this->_logInstance[$type] = new Zend_Log($writer);
}
return $this->_logInstance[$type];
}
/**
* Write to log file
*
* @param string $type The type of log file to write to
* @param string $message The message to add to the file
*
* @return bool
*/
public static function write($type, $message)
{
// @todo if log_maxsize reached => archive/delete log
$logger = self::getInstance();
$log = $logger->getLogInstance($type);
return $log->info($message);
}
/**
* Get the concrete filename with path for the given type.
*
* @param const $file
*
* @return string Filename of logfile
*/
public function getFile($file)
{
$filename = '';
switch ($file) {
case self::PHP:
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$filename = $this->_paths->log . '/php.log';
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break;
case self::PERL:
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$filename = $this->_paths->log . '/perl.log';
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break;
case self::PERL_COMPLETE:
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$filename = $this->_paths->log . '/perlComplete.log';
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break;
case self::ERROR:
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$filename = $this->_paths->log . '/phpError.log';
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}
return $filename;
}
/**
* Delete a log file and recreate it.
*
* @param string $file Filename
*
* @return void
*/
public function delete($type)
{
$filename = self::getFile($type);
@unlink($filename);
// re-create log file
$translator = Msd_Language::getInstance()->getTranslator();
$this->write($type, $translator->_('L_LOG_CREATED'));
}
/**
* Read a logfile and return content as array.
*
* If $revers is set to true the ordering of lines is reversed.
*
* @param parent::const $type The type of logfile to read
* @param boolean $reverse Wether to place latest entries first
*
* @return array Log data from file as array
*/
public function read($type = self::PHP, $reverse = false)
{
$filename = $this->getFile($type);
if (!is_readable($filename)) {
$timestamp = Zend_Date::ISO_8601;
$lang = Msd_Language::getInstance()->getTranslator();
$msg = $timestamp . ' <span class="error">' .
sprintf($lang->_('L_LOG_NOT_READABLE'), $filename) . '</span>';
return array($msg);
} else {
$output = file($filename);
}
if ($reverse == 1) {
$output = array_reverse($output);
}
return $output;
}
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}