263 lines
7.1 KiB
PHP
263 lines
7.1 KiB
PHP
<?php
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namespace W3TC;
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class ObjectCache_WpObjectCache {
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private $_config = null;
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private $_default_cache;
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private $_caches = array();
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private $_cache_by_group = array();
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function __construct() {
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$this->_config = Dispatcher::config();
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$this->_default_cache = Dispatcher::component(
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'ObjectCache_WpObjectCache_Regular' );
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$this->_caches[] = $this->_default_cache;
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}
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/**
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* Registers cache object so that its used for specific groups of
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* object cache instead of default cache
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*/
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public function register_cache( $cache, $use_for_object_groups ) {
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$this->_caches[] = $cache;
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foreach ( $use_for_object_groups as $group )
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$this->_cache_by_group[$group] = $cache;
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}
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/**
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* Get from the cache
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*
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* @param string $id
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* @param string $group
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* @return mixed
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*/
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function get( $id, $group = 'default', $force = false, &$found = null ) {
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$cache = $this->_get_engine( $group );
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return $cache->get( $id, $group, $force, $found );
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}
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/**
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* Retrieves multiple values from the cache in one call.
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*
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* @since 2.2.8
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*
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* @param array $ids Array of keys under which the cache contents are stored.
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* @param string $group Optional. Where the cache contents are grouped. Default 'default'.
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* @param bool $force Optional. Whether to force an update of the local cache
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* from the persistent cache. Default false.
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*
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* @return array Array of return values, grouped by key. Each value is either
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* the cache contents on success, or false on failure.
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*/
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public function get_multiple( $ids, $group = 'default', $force = false ) {
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$cache = $this->_get_engine( $group );
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return $cache->get_multiple( $ids, $group, $force );
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}
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/**
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* Set to the cache
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*
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* @param string $id
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* @param mixed $data
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* @param string $group
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* @param integer $expire
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* @return boolean
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*/
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function set( $id, $data, $group = 'default', $expire = 0 ) {
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$cache = $this->_get_engine( $group );
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return $cache->set( $id, $data, $group, $expire );
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}
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/**
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* Sets multiple values to the cache in one call.
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*
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* @since 2.2.8
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*
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* @param array $data Array of key and value to be set.
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* @param string $group Optional. Where the cache contents are grouped. Default empty.
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* @param int $expire Optional. When to expire the cache contents, in seconds.
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* Default 0 (no expiration).
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*
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* @return bool[] Array of return values, grouped by key. Each value is always true.
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*/
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public function set_multiple( $data, $group = 'default', $expire = 0 ) {
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$cache = $this->_get_engine( $group );
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return $cache->set_multiple( $data, $group, $expire );
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}
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/**
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* Delete from the cache
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*
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* @param string $id
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* @param string $group
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* @param bool $force
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* @return boolean
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*/
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function delete( $id, $group = 'default', $force = false ) {
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$cache = $this->_get_engine( $group );
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return $cache->delete( $id, $group, $force );
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}
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/**
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* Deletes multiple values from the cache in one call.
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*
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* @since 2.2.8
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*
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* @param array $keys Array of keys to be deleted.
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* @param string $group Optional. Where the cache contents are grouped. Default empty.
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*
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* @return bool[] Array of return values, grouped by key. Each value is either
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* true on success, or false if the contents were not deleted.
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*/
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public function delete_multiple( $keys, $group = 'default' ) {
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$cache = $this->_get_engine( $group );
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return $cache->delete_multiple( $keys, $group );
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}
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/**
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* Add to the cache
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*
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* @param string $id
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* @param mixed $data
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* @param string $group
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* @param integer $expire
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* @return boolean
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*/
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function add( $id, $data, $group = 'default', $expire = 0 ) {
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$cache = $this->_get_engine( $group );
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return $cache->add( $id, $data, $group, $expire );
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}
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/**
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* Adds multiple values to the cache in one call.
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*
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* @since 2.2.8
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*
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* @param array $data Array of keys and values to be added.
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* @param string $group Optional. Where the cache contents are grouped. Default empty.
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* @param int $expire Optional. When to expire the cache contents, in seconds.
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* Default 0 (no expiration).
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*
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* @return bool[] Array of return values, grouped by key. Each value is either
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* true on success, or false if cache key and group already exist.
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*/
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public function add_multiple( array $data, $group = '', $expire = 0 ) {
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$cache = $this->_get_engine( $group );
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return $cache->add_multiple( $data, $group, $expire );
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}
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/**
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* Replace in the cache
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*
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* @param string $id
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* @param mixed $data
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* @param string $group
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* @param integer $expire
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* @return boolean
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*/
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function replace( $id, $data, $group = 'default', $expire = 0 ) {
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$cache = $this->_get_engine( $group );
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return $cache->replace( $id, $data, $group, $expire );
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}
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/**
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* Reset keys
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*
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* @return boolean
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*/
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function reset() {
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$result = true;
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foreach ( $this->_caches as $engine )
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$result = $result && $engine->reset();
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return $result;
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}
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/**
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* Flush cache
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*
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* @return boolean
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*/
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function flush() {
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$result = true;
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foreach ( $this->_caches as $engine )
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$result = $result && $engine->flush();
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return $result;
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}
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/**
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* Add global groups
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*
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* @param array $groups
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* @return void
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*/
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function add_global_groups( $groups ) {
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if ( !is_array( $groups ) )
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$groups = array( $groups );
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foreach ( $groups as $group ) {
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$cache = $this->_get_engine( $group );
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$cache->add_global_groups( array( $group ) );
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}
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}
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/**
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* Add non-persistent groups
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*
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* @param array $groups
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* @return void
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*/
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function add_nonpersistent_groups( $groups ) {
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if ( !is_array( $groups ) )
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$groups = array( $groups );
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foreach ( $groups as $group ) {
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$cache = $this->_get_engine( $group );
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$cache->add_nonpersistent_groups( array( $group ) );
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}
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}
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/**
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* Return engine based on which group the OC value belongs to.
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*
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* @param string $group
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* @return mixed
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*/
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private function _get_engine( $group = '' ) {
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if ( isset( $this->_cache_by_group[$group] ) )
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return $this->_cache_by_group[$group];
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return $this->_default_cache;
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}
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/**
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* Decrement numeric cache item's value
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*
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* @param int|string $id The cache key to increment
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* @param int $offset The amount by which to decrement the item's value. Default is 1.
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* @param string $group The group the key is in.
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* @return bool|int False on failure, the item's new value on success.
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*/
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function decr( $id, $offset = 1, $group = 'default' ) {
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$cache = $this->_get_engine( $group );
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return $cache->decr( $id, $offset, $group );
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}
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/**
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* Increment numeric cache item's value
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*
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* @param int|string $id The cache key to increment
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* @param int $offset The amount by which to increment the item's value. Default is 1.
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* @param string $group The group the key is in.
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* @return false|int False on failure, the item's new value on success.
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*/
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function incr( $id, $offset = 1, $group = 'default' ) {
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$cache = $this->_get_engine( $group );
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return $cache->incr( $id, $offset, $group );
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}
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function switch_to_blog( $blog_id ) {
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foreach ( $this->_caches as $cache )
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$cache->switch_blog( $blog_id );
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}
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}
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