Split Cache + CacheEngine into separate files.

Refs #2514

lib/Cake/Cache/Cache.php

@@ -1,10 +1,5 @@
 <?php
 /**
- * Caching for CakePHP.
- *
- *
- * PHP 5
- *
  * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
  * Copyright 2005-2011, Cake Software Foundation, Inc. (http://cakefoundation.org)
  *
@@ -19,6 +14,7 @@
  */
 
 App::uses('Inflector', 'Utility');
+App::uses('CacheEngine', 'Cache');
 
 /**
  * Cache provides a consistent interface to Caching in your application. It allows you
@@ -483,120 +479,3 @@ class Cache {
 	}
 }
 
-/**
- * Storage engine for CakePHP caching
- *
- * @package       Cake.Cache
- */
-abstract class CacheEngine {
-
-/**
- * Settings of current engine instance
- *
- * @var array
- */
-	public $settings = array();
-
-/**
- * Initialize the cache engine
- *
- * Called automatically by the cache frontend
- *
- * @param array $settings Associative array of parameters for the engine
- * @return boolean True if the engine has been successfully initialized, false if not
- */
-	public function init($settings = array()) {
-		$this->settings = array_merge(
-			array('prefix' => 'cake_', 'duration' => 3600, 'probability' => 100),
-			$this->settings,
-			$settings
-		);
-		if (!is_numeric($this->settings['duration'])) {
-			$this->settings['duration'] = strtotime($this->settings['duration']) - time();
-		}
-		return true;
-	}
-
-/**
- * Garbage collection
- *
- * Permanently remove all expired and deleted data
- * @return void
- */
-	public function gc() { }
-
-/**
- * Write value for a key into cache
- *
- * @param string $key Identifier for the data
- * @param mixed $value Data to be cached
- * @param mixed $duration How long to cache for.
- * @return boolean True if the data was successfully cached, false on failure
- */
-	abstract public function write($key, $value, $duration);
-
-/**
- * Read a key from the cache
- *
- * @param string $key Identifier for the data
- * @return mixed The cached data, or false if the data doesn't exist, has expired, or if there was an error fetching it
- */
-	abstract public function read($key);
-
-/**
- * Increment a number under the key and return incremented value
- *
- * @param string $key Identifier for the data
- * @param integer $offset How much to add
- * @return New incremented value, false otherwise
- */
-	abstract public function increment($key, $offset = 1);
-
-/**
- * Decrement a number under the key and return decremented value
- *
- * @param string $key Identifier for the data
- * @param integer $offset How much to subtract
- * @return New incremented value, false otherwise
- */
-	abstract public function decrement($key, $offset = 1);
-
-/**
- * Delete a key from the cache
- *
- * @param string $key Identifier for the data
- * @return boolean True if the value was successfully deleted, false if it didn't exist or couldn't be removed
- */
-	abstract public function delete($key);
-
-/**
- * Delete all keys from the cache
- *
- * @param boolean $check if true will check expiration, otherwise delete all
- * @return boolean True if the cache was successfully cleared, false otherwise
- */
-	abstract public function clear($check);
-
-/**
- * Cache Engine settings
- *
- * @return array settings
- */
-	public function settings() {
-		return $this->settings;
-	}
-
-/**
- * Generates a safe key for use with cache engine storage engines.
- *
- * @param string $key the key passed over
- * @return mixed string $key or false
- */
-	public function key($key) {
-		if (empty($key)) {
-			return false;
-		}
-		$key = Inflector::underscore(str_replace(array(DS, '/', '.'), '_', strval($key)));
-		return $key;
-	}
-}

lib/Cake/Cache/CacheEngine.php

@@ -0,0 +1,132 @@
+<?php
+/**
+ * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
+ * Copyright 2005-2011, Cake Software Foundation, Inc. (http://cakefoundation.org)
+ *
+ * Licensed under The MIT License
+ * Redistributions of files must retain the above copyright notice.
+ *
+ * @copyright     Copyright 2005-2011, Cake Software Foundation, Inc. (http://cakefoundation.org)
+ * @link          http://cakephp.org CakePHP(tm) Project
+ * @package       Cake.Cache
+ * @since         CakePHP(tm) v 1.2.0.4933
+ * @license       MIT License (http://www.opensource.org/licenses/mit-license.php)
+ */
+
+/**
+ * Storage engine for CakePHP caching
+ *
+ * @package       Cake.Cache
+ */
+abstract class CacheEngine {
+
+/**
+ * Settings of current engine instance
+ *
+ * @var array
+ */
+	public $settings = array();
+
+/**
+ * Initialize the cache engine
+ *
+ * Called automatically by the cache frontend
+ *
+ * @param array $settings Associative array of parameters for the engine
+ * @return boolean True if the engine has been successfully initialized, false if not
+ */
+	public function init($settings = array()) {
+		$this->settings = array_merge(
+			array('prefix' => 'cake_', 'duration' => 3600, 'probability' => 100),
+			$this->settings,
+			$settings
+		);
+		if (!is_numeric($this->settings['duration'])) {
+			$this->settings['duration'] = strtotime($this->settings['duration']) - time();
+		}
+		return true;
+	}
+
+/**
+ * Garbage collection
+ *
+ * Permanently remove all expired and deleted data
+ * @return void
+ */
+	public function gc() { }
+
+/**
+ * Write value for a key into cache
+ *
+ * @param string $key Identifier for the data
+ * @param mixed $value Data to be cached
+ * @param mixed $duration How long to cache for.
+ * @return boolean True if the data was successfully cached, false on failure
+ */
+	abstract public function write($key, $value, $duration);
+
+/**
+ * Read a key from the cache
+ *
+ * @param string $key Identifier for the data
+ * @return mixed The cached data, or false if the data doesn't exist, has expired, or if there was an error fetching it
+ */
+	abstract public function read($key);
+
+/**
+ * Increment a number under the key and return incremented value
+ *
+ * @param string $key Identifier for the data
+ * @param integer $offset How much to add
+ * @return New incremented value, false otherwise
+ */
+	abstract public function increment($key, $offset = 1);
+
+/**
+ * Decrement a number under the key and return decremented value
+ *
+ * @param string $key Identifier for the data
+ * @param integer $offset How much to subtract
+ * @return New incremented value, false otherwise
+ */
+	abstract public function decrement($key, $offset = 1);
+
+/**
+ * Delete a key from the cache
+ *
+ * @param string $key Identifier for the data
+ * @return boolean True if the value was successfully deleted, false if it didn't exist or couldn't be removed
+ */
+	abstract public function delete($key);
+
+/**
+ * Delete all keys from the cache
+ *
+ * @param boolean $check if true will check expiration, otherwise delete all
+ * @return boolean True if the cache was successfully cleared, false otherwise
+ */
+	abstract public function clear($check);
+
+/**
+ * Cache Engine settings
+ *
+ * @return array settings
+ */
+	public function settings() {
+		return $this->settings;
+	}
+
+/**
+ * Generates a safe key for use with cache engine storage engines.
+ *
+ * @param string $key the key passed over
+ * @return mixed string $key or false
+ */
+	public function key($key) {
+		if (empty($key)) {
+			return false;
+		}
+		$key = Inflector::underscore(str_replace(array(DS, '/', '.'), '_', strval($key)));
+		return $key;
+	}
+}