installed plugin W3 Total Cache version 2.3.2

wp-content/plugins/w3-total-cache/ObjectCache_WpObjectCache.php

@@ -0,0 +1,193 @@
+<?php
+namespace W3TC;
+
+class ObjectCache_WpObjectCache {
+	private $_config = null;
+	private $_default_cache;
+	private $_caches = array();
+	private $_cache_by_group = array();
+
+	function __construct() {
+		$this->_config = Dispatcher::config();
+		$this->_default_cache = Dispatcher::component(
+			'ObjectCache_WpObjectCache_Regular' );
+		$this->_caches[] = $this->_default_cache;
+	}
+
+	/**
+	 * Registers cache object so that its used for specific groups of
+	 * object cache instead of default cache
+	 */
+	public function register_cache( $cache, $use_for_object_groups ) {
+		$this->_caches[] = $cache;
+		foreach ( $use_for_object_groups as $group )
+			$this->_cache_by_group[$group] = $cache;
+	}
+
+	/**
+	 * Get from the cache
+	 *
+	 * @param string  $id
+	 * @param string  $group
+	 * @return mixed
+	 */
+	function get( $id, $group = 'default', $force = false, &$found = null ) {
+		$cache = $this->_get_engine( $group );
+		return $cache->get( $id, $group, $force, $found );
+	}
+
+	/**
+	 * Set to the cache
+	 *
+	 * @param string  $id
+	 * @param mixed   $data
+	 * @param string  $group
+	 * @param integer $expire
+	 * @return boolean
+	 */
+	function set( $id, $data, $group = 'default', $expire = 0 ) {
+		$cache = $this->_get_engine( $group );
+		return $cache->set( $id, $data, $group, $expire );
+	}
+
+	/**
+	 * Delete from the cache
+	 *
+	 * @param string  $id
+	 * @param string  $group
+	 * @param bool    $force
+	 * @return boolean
+	 */
+	function delete( $id, $group = 'default', $force = false ) {
+		$cache = $this->_get_engine( $group );
+		return $cache->delete( $id, $group, $force );
+	}
+
+	/**
+	 * Add to the cache
+	 *
+	 * @param string  $id
+	 * @param mixed   $data
+	 * @param string  $group
+	 * @param integer $expire
+	 * @return boolean
+	 */
+	function add( $id, $data, $group = 'default', $expire = 0 ) {
+		$cache = $this->_get_engine( $group );
+		return $cache->add( $id, $data, $group, $expire );
+	}
+
+	/**
+	 * Replace in the cache
+	 *
+	 * @param string  $id
+	 * @param mixed   $data
+	 * @param string  $group
+	 * @param integer $expire
+	 * @return boolean
+	 */
+	function replace( $id, $data, $group = 'default', $expire = 0 ) {
+		$cache = $this->_get_engine( $group );
+		return $cache->replace( $id, $data, $group, $expire );
+	}
+
+	/**
+	 * Reset keys
+	 *
+	 * @return boolean
+	 */
+	function reset() {
+		$result = true;
+		foreach ( $this->_caches as $engine )
+			$result = $result && $engine->reset();
+		return $result;
+	}
+
+	/**
+	 * Flush cache
+	 *
+	 * @return boolean
+	 */
+	function flush() {
+		$result = true;
+		foreach ( $this->_caches as $engine )
+			$result = $result && $engine->flush();
+		return $result;
+	}
+
+	/**
+	 * Add global groups
+	 *
+	 * @param array   $groups
+	 * @return void
+	 */
+	function add_global_groups( $groups ) {
+		if ( !is_array( $groups ) )
+			$groups = array( $groups );
+
+		foreach ( $groups as $group ) {
+			$cache = $this->_get_engine( $group );
+			$cache->add_global_groups( array( $group ) );
+		}
+	}
+
+	/**
+	 * Add non-persistent groups
+	 *
+	 * @param array   $groups
+	 * @return void
+	 */
+	function add_nonpersistent_groups( $groups ) {
+		if ( !is_array( $groups ) )
+			$groups = array( $groups );
+
+		foreach ( $groups as $group ) {
+			$cache = $this->_get_engine( $group );
+			$cache->add_nonpersistent_groups( array( $group ) );
+		}
+	}
+
+	/**
+	 * Return engine based on which group the OC value belongs to.
+	 *
+	 * @param string  $group
+	 * @return mixed
+	 */
+	private function _get_engine( $group = '' ) {
+		if ( isset( $this->_cache_by_group[$group] ) )
+			return $this->_cache_by_group[$group];
+
+		return $this->_default_cache;
+	}
+
+	/**
+	 * Decrement numeric cache item's value
+	 *
+	 * @param int|string $id     The cache key to increment
+	 * @param int     $offset The amount by which to decrement the item's value. Default is 1.
+	 * @param string  $group  The group the key is in.
+	 * @return bool|int False on failure, the item's new value on success.
+	 */
+	function decr( $id, $offset = 1, $group = 'default' ) {
+		$cache = $this->_get_engine( $group );
+		return $cache->decr( $id, $offset, $group );
+	}
+
+	/**
+	 * Increment numeric cache item's value
+	 *
+	 * @param int|string $id     The cache key to increment
+	 * @param int     $offset The amount by which to increment the item's value. Default is 1.
+	 * @param string  $group  The group the key is in.
+	 * @return false|int False on failure, the item's new value on success.
+	 */
+	function incr( $id, $offset = 1, $group = 'default' ) {
+		$cache = $this->_get_engine( $group );
+		return $cache->incr( $id, $offset, $group );
+	}
+
+	function switch_to_blog( $blog_id ) {
+		foreach ( $this->_caches as $cache )
+			$cache->switch_blog( $blog_id );
+	}
+}