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Manager.php
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Manager.php
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<?php
// Require Rediska
require_once dirname(__FILE__) . '/../Rediska.php';
/**
* Rediska instances manager
*
* @author Ivan Shumkov
* @package Rediska
* @version @package_version@
* @link http://rediska.geometria-lab.net
* @license http://www.opensource.org/licenses/bsd-license.php
*/
class Rediska_Manager
{
/**
* Rediska instances
*
* @var array
*/
protected static $_instances = array();
/**
* Add Rediska
* Return true if new instance and false if instance overwrited
*
* @param Rediska $rediska Rediska instance or options
* @return boolean
*/
public static function add($rediska)
{
if ($rediska instanceof Rediska) {
if (!self::has($rediska->getName())) {
foreach(self::$_instances as $name => $instance) {
if ($instance === $rediska && $name != $rediska->getName()) {
unset(self::$_instances[$name]);
break;
}
}
}
$name = $rediska->getName();
} else if (is_array($rediska)) {
if (isset($rediska['name'])) {
$name = $rediska['name'];
} else {
$name = Rediska::DEFAULT_NAME;
}
} else {
throw new Rediska_Exception('Rediska must be a instance or options');
}
if (self::has($name)) {
$result = false;
} else {
$result = true;
}
self::$_instances[$name] = $rediska;
return $result;
}
/**
* Has Rediska instances
*
* @param string $name
*/
public static function has($name)
{
return isset(self::$_instances[$name]);
}
/**
* Get Rediska
*
* @param string[optional] $name Instance name
* @return Rediska
*/
public static function get($name = Rediska::DEFAULT_NAME)
{
if (!self::has($name)) {
throw new Rediska_Exception("Rediska instance '$name' not present");
}
self::_instanceFromOptions($name);
return self::$_instances[$name];
}
/**
* Get all Rediska instances
*
* @return array
*/
public static function getAll()
{
foreach(self::$_instances as $name => $instanceOrOptions) {
self::_instanceFromOptions($name);
}
return self::$_instances;
}
/**
* Remove Rediska
*
* @param Rediska $rediska Rediska instance or options
* @return boolean
*/
public static function remove($rediska)
{
if ($rediska instanceof Rediska) {
$name = $rediska->getName();
} else if (is_string($rediska)) {
$name = $rediska;
} else {
throw new Rediska_Exception('Rediska must be a instance or name');
}
if (!isset(self::$_instances[$name])) {
throw new Rediska_Exception("Rediska instance '$name' not present");
}
unset(self::$_instances[$name]);
return true;
}
/**
* Remove all rediska
* Return count of removed instance
*
* @return integer
*/
public static function removeAll()
{
$count = count(self::$_instances);
self::$_instances = array();
return $count;
}
/**
* Instance from options if not yet
*
* @static
* @param $name
* @return void
*/
protected static function _instanceFromOptions($name)
{
if (!is_object(self::$_instances[$name])) {
$options = self::$_instances[$name];
self::$_instances[$name] = new Rediska($options);
}
}
}