From 12fe58d997d2066dc362fd393a18b4e5da190513 Mon Sep 17 00:00:00 2001
From: Bharat Mediratta <bharat@menalto.com>
Date: Wed, 27 May 2009 15:11:53 -0700
Subject: Rename 'kohana' to 'system' to conform to the Kohana filesystem
 layout.  I'm comfortable with us not clearly drawing the distinction about
 the fact that it's Kohana.

---
 kohana/libraries/Cache.php | 208 ---------------------------------------------
 1 file changed, 208 deletions(-)
 delete mode 100644 kohana/libraries/Cache.php

(limited to 'kohana/libraries/Cache.php')

diff --git a/kohana/libraries/Cache.php b/kohana/libraries/Cache.php
deleted file mode 100644
index 8a02a905..00000000
--- a/kohana/libraries/Cache.php
+++ /dev/null
@@ -1,208 +0,0 @@
-<?php defined('SYSPATH') OR die('No direct access allowed.');
-/**
- * Provides a driver-based interface for finding, creating, and deleting cached
- * resources. Caches are identified by a unique string. Tagging of caches is
- * also supported, and caches can be found and deleted by id or tag.
- *
- * $Id: Cache.php 4321 2009-05-04 01:39:44Z kiall $
- *
- * @package    Cache
- * @author     Kohana Team
- * @copyright  (c) 2007-2008 Kohana Team
- * @license    http://kohanaphp.com/license.html
- */
-class Cache_Core {
-
-	protected static $instances = array();
-
-	// For garbage collection
-	protected static $loaded;
-
-	// Configuration
-	protected $config;
-
-	// Driver object
-	protected $driver;
-
-	/**
-	 * Returns a singleton instance of Cache.
-	 *
-	 * @param   string  configuration
-	 * @return  Cache_Core
-	 */
-	public static function & instance($config = FALSE)
-	{
-		if ( ! isset(Cache::$instances[$config]))
-		{
-			// Create a new instance
-			Cache::$instances[$config] = new Cache($config);
-		}
-
-		return Cache::$instances[$config];
-	}
-
-	/**
-	 * Loads the configured driver and validates it.
-	 *
-	 * @param   array|string  custom configuration or config group name
-	 * @return  void
-	 */
-	public function __construct($config = FALSE)
-	{
-		if (is_string($config))
-		{
-			$name = $config;
-
-			// Test the config group name
-			if (($config = Kohana::config('cache.'.$config)) === NULL)
-				throw new Kohana_Exception('cache.undefined_group', $name);
-		}
-
-		if (is_array($config))
-		{
-			// Append the default configuration options
-			$config += Kohana::config('cache.default');
-		}
-		else
-		{
-			// Load the default group
-			$config = Kohana::config('cache.default');
-		}
-
-		// Cache the config in the object
-		$this->config = $config;
-
-		// Set driver name
-		$driver = 'Cache_'.ucfirst($this->config['driver']).'_Driver';
-
-		// Load the driver
-		if ( ! Kohana::auto_load($driver))
-			throw new Kohana_Exception('core.driver_not_found', $this->config['driver'], get_class($this));
-
-		// Initialize the driver
-		$this->driver = new $driver($this->config['params']);
-
-		// Validate the driver
-		if ( ! ($this->driver instanceof Cache_Driver))
-			throw new Kohana_Exception('core.driver_implements', $this->config['driver'], get_class($this), 'Cache_Driver');
-
-		Kohana::log('debug', 'Cache Library initialized');
-
-		if (Cache::$loaded !== TRUE)
-		{
-			$this->config['requests'] = (int) $this->config['requests'];
-
-			if ($this->config['requests'] > 0 AND mt_rand(1, $this->config['requests']) === 1)
-			{
-				// Do garbage collection
-				$this->driver->delete_expired();
-
-				Kohana::log('debug', 'Cache: Expired caches deleted.');
-			}
-
-			// Cache has been loaded once
-			Cache::$loaded = TRUE;
-		}
-	}
-
-	/**
-	 * Fetches a cache by id. NULL is returned when a cache item is not found.
-	 *
-	 * @param   string  cache id
-	 * @return  mixed   cached data or NULL
-	 */
-	public function get($id)
-	{
-		// Sanitize the ID
-		$id = $this->sanitize_id($id);
-
-		return $this->driver->get($id);
-	}
-
-	/**
-	 * Fetches all of the caches for a given tag. An empty array will be
-	 * returned when no matching caches are found.
-	 *
-	 * @param   string  cache tag
-	 * @return  array   all cache items matching the tag
-	 */
-	public function find($tag)
-	{
-		return $this->driver->find($tag);
-	}
-
-	/**
-	 * Set a cache item by id. Tags may also be added and a custom lifetime
-	 * can be set. Non-string data is automatically serialized.
-	 *
-	 * @param   string        unique cache id
-	 * @param   mixed         data to cache
-	 * @param   array|string  tags for this item
-	 * @param   integer       number of seconds until the cache expires
-	 * @return  boolean
-	 */
-	function set($id, $data, $tags = NULL, $lifetime = NULL)
-	{
-		if (is_resource($data))
-			throw new Kohana_Exception('cache.resources');
-
-		// Sanitize the ID
-		$id = $this->sanitize_id($id);
-
-		if ($lifetime === NULL)
-		{
-			// Get the default lifetime
-			$lifetime = $this->config['lifetime'];
-		}
-
-		return $this->driver->set($id, $data, (array) $tags, $lifetime);
-	}
-
-	/**
-	 * Delete a cache item by id.
-	 *
-	 * @param   string   cache id
-	 * @return  boolean
-	 */
-	public function delete($id)
-	{
-		// Sanitize the ID
-		$id = $this->sanitize_id($id);
-
-		return $this->driver->delete($id);
-	}
-
-	/**
-	 * Delete all cache items with a given tag.
-	 *
-	 * @param   string   cache tag name
-	 * @return  boolean
-	 */
-	public function delete_tag($tag)
-	{
-		return $this->driver->delete($tag, TRUE);
-	}
-
-	/**
-	 * Delete ALL cache items items.
-	 *
-	 * @return  boolean
-	 */
-	public function delete_all()
-	{
-		return $this->driver->delete(TRUE);
-	}
-
-	/**
-	 * Replaces troublesome characters with underscores.
-	 *
-	 * @param   string   cache id
-	 * @return  string
-	 */
-	protected function sanitize_id($id)
-	{
-		// Change slashes and spaces to underscores
-		return str_replace(array('/', '\\', ' '), '_', $id);
-	}
-
-} // End Cache
-- 
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