mirror of
https://github.com/brmlab/brmbiolab_sklad.git
synced 2025-06-09 05:34:01 +02:00
Initial commit
This commit is contained in:
mareksebera
commit
3b93da31de
1004 changed files with 265840 additions and 0 deletions
325
lib/Cake/Cache/Engine/MemcachedEngine.php
Normal file
325
lib/Cake/Cache/Engine/MemcachedEngine.php
Normal file
|
|
@ -0,0 +1,325 @@
|
|||
<?php
|
||||
/**
|
||||
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
|
||||
* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
|
||||
*
|
||||
* Licensed under The MIT License
|
||||
* For full copyright and license information, please see the LICENSE.txt
|
||||
* Redistributions of files must retain the above copyright notice.
|
||||
*
|
||||
* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
|
||||
* @link http://cakephp.org CakePHP(tm) Project
|
||||
* @since CakePHP(tm) v 2.5.0
|
||||
* @license http://www.opensource.org/licenses/mit-license.php MIT License
|
||||
*/
|
||||
|
||||
/**
|
||||
* Memcached storage engine for cache. Memcached has some limitations in the amount of
|
||||
* control you have over expire times far in the future. See MemcachedEngine::write() for
|
||||
* more information.
|
||||
*
|
||||
* Main advantage of this Memcached engine over the memcached engine is
|
||||
* support of binary protocol, and igbibnary serialization
|
||||
* (if memcached extension compiled with --enable-igbinary)
|
||||
* Compressed keys can also be incremented/decremented
|
||||
*
|
||||
* @package Cake.Cache.Engine
|
||||
*/
|
||||
class MemcachedEngine extends CacheEngine {
|
||||
|
||||
/**
|
||||
* memcached wrapper.
|
||||
*
|
||||
* @var Memcache
|
||||
*/
|
||||
protected $_Memcached = null;
|
||||
|
||||
/**
|
||||
* Settings
|
||||
*
|
||||
* - servers = string or array of memcached servers, default => 127.0.0.1. If an
|
||||
* array MemcacheEngine will use them as a pool.
|
||||
* - compress = boolean, default => false
|
||||
* - persistent = string The name of the persistent connection. All configurations using
|
||||
* the same persistent value will share a single underlying connection.
|
||||
* - serialize = string, default => php. The serializer engine used to serialize data.
|
||||
* Available engines are php, igbinary and json. Beside php, the memcached extension
|
||||
* must be compiled with the appropriate serializer support.
|
||||
*
|
||||
* @var array
|
||||
*/
|
||||
public $settings = array();
|
||||
|
||||
/**
|
||||
* List of available serializer engines
|
||||
*
|
||||
* Memcached must be compiled with json and igbinary support to use these engines
|
||||
*
|
||||
* @var array
|
||||
*/
|
||||
protected $_serializers = array(
|
||||
'igbinary' => Memcached::SERIALIZER_IGBINARY,
|
||||
'json' => Memcached::SERIALIZER_JSON,
|
||||
'php' => Memcached::SERIALIZER_PHP
|
||||
);
|
||||
|
||||
/**
|
||||
* Initialize the Cache Engine
|
||||
*
|
||||
* Called automatically by the cache frontend
|
||||
* To reinitialize the settings call Cache::engine('EngineName', [optional] settings = array());
|
||||
*
|
||||
* @param array $settings array of setting for the engine
|
||||
* @return bool True if the engine has been successfully initialized, false if not
|
||||
* @throws CacheException when you try use authentication without Memcached compiled with SASL support
|
||||
*/
|
||||
public function init($settings = array()) {
|
||||
if (!class_exists('Memcached')) {
|
||||
return false;
|
||||
}
|
||||
if (!isset($settings['prefix'])) {
|
||||
$settings['prefix'] = Inflector::slug(APP_DIR) . '_';
|
||||
}
|
||||
|
||||
if (defined('Memcached::HAVE_MSGPACK') && Memcached::HAVE_MSGPACK) {
|
||||
$this->_serializers['msgpack'] = Memcached::SERIALIZER_MSGPACK;
|
||||
}
|
||||
|
||||
$settings += array(
|
||||
'engine' => 'Memcached',
|
||||
'servers' => array('127.0.0.1'),
|
||||
'compress' => false,
|
||||
'persistent' => false,
|
||||
'login' => null,
|
||||
'password' => null,
|
||||
'serialize' => 'php'
|
||||
);
|
||||
parent::init($settings);
|
||||
|
||||
if (!is_array($this->settings['servers'])) {
|
||||
$this->settings['servers'] = array($this->settings['servers']);
|
||||
}
|
||||
|
||||
if (isset($this->_Memcached)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
$this->_Memcached = new Memcached($this->settings['persistent'] ? (string)$this->settings['persistent'] : null);
|
||||
$this->_setOptions();
|
||||
|
||||
if (count($this->_Memcached->getServerList())) {
|
||||
return true;
|
||||
}
|
||||
|
||||
$servers = array();
|
||||
foreach ($this->settings['servers'] as $server) {
|
||||
$servers[] = $this->_parseServerString($server);
|
||||
}
|
||||
|
||||
if (!$this->_Memcached->addServers($servers)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if ($this->settings['login'] !== null && $this->settings['password'] !== null) {
|
||||
if (!method_exists($this->_Memcached, 'setSaslAuthData')) {
|
||||
throw new CacheException(
|
||||
__d('cake_dev', 'Memcached extension is not build with SASL support')
|
||||
);
|
||||
}
|
||||
$this->_Memcached->setSaslAuthData($this->settings['login'], $this->settings['password']);
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Settings the memcached instance
|
||||
*
|
||||
* @throws CacheException when the Memcached extension is not built with the desired serializer engine
|
||||
* @return void
|
||||
*/
|
||||
protected function _setOptions() {
|
||||
$this->_Memcached->setOption(Memcached::OPT_LIBKETAMA_COMPATIBLE, true);
|
||||
|
||||
$serializer = strtolower($this->settings['serialize']);
|
||||
if (!isset($this->_serializers[$serializer])) {
|
||||
throw new CacheException(
|
||||
__d('cake_dev', '%s is not a valid serializer engine for Memcached', $serializer)
|
||||
);
|
||||
}
|
||||
|
||||
if ($serializer !== 'php' && !constant('Memcached::HAVE_' . strtoupper($serializer))) {
|
||||
throw new CacheException(
|
||||
__d('cake_dev', 'Memcached extension is not compiled with %s support', $serializer)
|
||||
);
|
||||
}
|
||||
|
||||
$this->_Memcached->setOption(Memcached::OPT_SERIALIZER, $this->_serializers[$serializer]);
|
||||
|
||||
// Check for Amazon ElastiCache instance
|
||||
if (defined('Memcached::OPT_CLIENT_MODE') && defined('Memcached::DYNAMIC_CLIENT_MODE')) {
|
||||
$this->_Memcached->setOption(Memcached::OPT_CLIENT_MODE, Memcached::DYNAMIC_CLIENT_MODE);
|
||||
}
|
||||
|
||||
$this->_Memcached->setOption(Memcached::OPT_COMPRESSION, (bool)$this->settings['compress']);
|
||||
}
|
||||
|
||||
/**
|
||||
* Parses the server address into the host/port. Handles both IPv6 and IPv4
|
||||
* addresses and Unix sockets
|
||||
*
|
||||
* @param string $server The server address string.
|
||||
* @return array Array containing host, port
|
||||
*/
|
||||
protected function _parseServerString($server) {
|
||||
if ($server[0] === 'u') {
|
||||
return array($server, 0);
|
||||
}
|
||||
if (substr($server, 0, 1) === '[') {
|
||||
$position = strpos($server, ']:');
|
||||
if ($position !== false) {
|
||||
$position++;
|
||||
}
|
||||
} else {
|
||||
$position = strpos($server, ':');
|
||||
}
|
||||
$port = 11211;
|
||||
$host = $server;
|
||||
if ($position !== false) {
|
||||
$host = substr($server, 0, $position);
|
||||
$port = substr($server, $position + 1);
|
||||
}
|
||||
return array($host, (int)$port);
|
||||
}
|
||||
|
||||
/**
|
||||
* Write data for key into cache. When using memcached as your cache engine
|
||||
* remember that the Memcached pecl extension does not support cache expiry times greater
|
||||
* than 30 days in the future. Any duration greater than 30 days will be treated as never expiring.
|
||||
*
|
||||
* @param string $key Identifier for the data
|
||||
* @param mixed $value Data to be cached
|
||||
* @param int $duration How long to cache the data, in seconds
|
||||
* @return bool True if the data was successfully cached, false on failure
|
||||
* @see http://php.net/manual/en/memcache.set.php
|
||||
*/
|
||||
public function write($key, $value, $duration) {
|
||||
if ($duration > 30 * DAY) {
|
||||
$duration = 0;
|
||||
}
|
||||
|
||||
return $this->_Memcached->set($key, $value, $duration);
|
||||
}
|
||||
|
||||
/**
|
||||
* Read a key from the cache
|
||||
*
|
||||
* @param string $key Identifier for the data
|
||||
* @return mixed The cached data, or false if the data doesn't exist, has expired, or if there was an error fetching it
|
||||
*/
|
||||
public function read($key) {
|
||||
return $this->_Memcached->get($key);
|
||||
}
|
||||
|
||||
/**
|
||||
* Increments the value of an integer cached key
|
||||
*
|
||||
* @param string $key Identifier for the data
|
||||
* @param int $offset How much to increment
|
||||
* @return New incremented value, false otherwise
|
||||
* @throws CacheException when you try to increment with compress = true
|
||||
*/
|
||||
public function increment($key, $offset = 1) {
|
||||
return $this->_Memcached->increment($key, $offset);
|
||||
}
|
||||
|
||||
/**
|
||||
* Decrements the value of an integer cached key
|
||||
*
|
||||
* @param string $key Identifier for the data
|
||||
* @param int $offset How much to subtract
|
||||
* @return New decremented value, false otherwise
|
||||
* @throws CacheException when you try to decrement with compress = true
|
||||
*/
|
||||
public function decrement($key, $offset = 1) {
|
||||
return $this->_Memcached->decrement($key, $offset);
|
||||
}
|
||||
|
||||
/**
|
||||
* Delete a key from the cache
|
||||
*
|
||||
* @param string $key Identifier for the data
|
||||
* @return bool True if the value was successfully deleted, false if it didn't exist or couldn't be removed
|
||||
*/
|
||||
public function delete($key) {
|
||||
return $this->_Memcached->delete($key);
|
||||
}
|
||||
|
||||
/**
|
||||
* Delete all keys from the cache
|
||||
*
|
||||
* @param bool $check If true no deletes will occur and instead CakePHP will rely
|
||||
* on key TTL values.
|
||||
* @return bool True if the cache was successfully cleared, false otherwise
|
||||
*/
|
||||
public function clear($check) {
|
||||
if ($check) {
|
||||
return true;
|
||||
}
|
||||
|
||||
$keys = $this->_Memcached->getAllKeys();
|
||||
|
||||
foreach ($keys as $key) {
|
||||
if (strpos($key, $this->settings['prefix']) === 0) {
|
||||
$this->_Memcached->delete($key);
|
||||
}
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the `group value` for each of the configured groups
|
||||
* If the group initial value was not found, then it initializes
|
||||
* the group accordingly.
|
||||
*
|
||||
* @return array
|
||||
*/
|
||||
public function groups() {
|
||||
if (empty($this->_compiledGroupNames)) {
|
||||
foreach ($this->settings['groups'] as $group) {
|
||||
$this->_compiledGroupNames[] = $this->settings['prefix'] . $group;
|
||||
}
|
||||
}
|
||||
|
||||
$groups = $this->_Memcached->getMulti($this->_compiledGroupNames);
|
||||
if (count($groups) !== count($this->settings['groups'])) {
|
||||
foreach ($this->_compiledGroupNames as $group) {
|
||||
if (!isset($groups[$group])) {
|
||||
$this->_Memcached->set($group, 1, 0);
|
||||
$groups[$group] = 1;
|
||||
}
|
||||
}
|
||||
ksort($groups);
|
||||
}
|
||||
|
||||
$result = array();
|
||||
$groups = array_values($groups);
|
||||
foreach ($this->settings['groups'] as $i => $group) {
|
||||
$result[] = $group . $groups[$i];
|
||||
}
|
||||
|
||||
return $result;
|
||||
}
|
||||
|
||||
/**
|
||||
* Increments the group value to simulate deletion of all keys under a group
|
||||
* old values will remain in storage until they expire.
|
||||
*
|
||||
* @param string $group The group to clear.
|
||||
* @return bool success
|
||||
*/
|
||||
public function clearGroup($group) {
|
||||
return (bool)$this->_Memcached->increment($this->settings['prefix'] . $group);
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue