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MySQLDumper/library/Msd/Config/IoHandler/Default.php

149 Zeilen
4,1 KiB
PHP

2012-08-04 10:40:48 +00:00
<?php
/**
* This file is part of MySQLDumper released under the GNU/GPL 2 license
* http://www.mysqldumper.net
*
* @package MySQLDumper
* @subpackage Config_IoHandler
* @version SVN: $Rev$
* @author $Author$
*/
/**
* Class to handle input/output for configuration params.
*
* @package MySQLDumper
* @subpackage Config_IoHandler
*/
class Msd_Config_IoHandler_Default implements Msd_Config_IoHandler_Interface
{
/**
* Array with directories, where config files are located.
*
* @var array
*/
private $_configDirectories = array();
/**
* Handler for .ini files.
*
* @var Msd_Ini
*/
private $_iniConfig = null;
/**
* Name of the .ini file, where the config is stored.
*
* @var string
*/
private $_configFilename = null;
/**
* Configuration namespace in session.
*
* @var Zend_Session_Namespace
*/
private $_sessionNamespace = null;
/**
* Class constructor
*
* @param array $handlerOptions
*
* @return Msd_Config_IoHandler_Default
*/
public function __construct($handlerOptions = array())
{
if (isset($handlerOptions['directories'])) {
$this->_configDirectories = (array) $handlerOptions['directories'];
}
// Create new namespace for session access.
$this->_sessionNamespace = new Zend_Session_Namespace('config');
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}
/**
* Loads and returns a configuration from session or .ini file.
* If the config is read from .ini file, it is also stored to session.
*
* @param string $configFilename Name of the .ini file, where the config is stored.
*
* @return array
*/
public function load($configFilename)
{
// Retrieve config from session
$config = (array) $this->_sessionNamespace->config;
$this->_configFilename = $configFilename;
// Check whether the configuration has been loaded.
if (count($config) == 0) {
// Search for the config file in the given directories.
$this->_initIni($config);
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$config = $this->_iniConfig->getIniData();
// Put configuration into session.
$this->_sessionNamespace->config = $config;
}
return $config;
}
/**
* Set configuration file name
*
* @param string $configFilename File name of configuration file (without path)
*/
public function setConfigFilename($configFilename)
{
$this->_configFilename = $configFilename;
}
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/**
* Saves the configuration to session and .ini file.
*
* @param array $config Configuration to save.
*
* @throws Msd_Config_Exception
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*
* @return bool
*/
public function save($config)
{
if ($this->_iniConfig === null) {
$this->_initIni($config);
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}
// Save config to .ini file
$this->_iniConfig->setIniData($config);
// Save config to session
$this->_sessionNamespace->config = $config;
if (!isset($this->_configDirectories[0])) {
throw new Msd_Config_Exception('No directory for saving the configuration set!');
}
$configDirectory = $this->_configDirectories[0];
return $this->_iniConfig->saveFile($configDirectory . '/' . $this->_configFilename);
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}
/**
* Initializes the .ini file handler and sets the full filename of the .ini file.
*
* @param array $config Configuration as array
*
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* @return void
*/
private function _initIni($config)
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{
foreach ($this->_configDirectories as $configDir) {
$filename = rtrim($configDir, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR . $this->_configFilename;
if (file_exists($filename)) {
$this->_configFilename = basename($filename);
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$this->_iniConfig = new Msd_Ini($filename);
return;
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}
}
$this->_iniConfig = new Msd_Ini();
$this->_iniConfig->setIniData($config);
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}
}