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wp-content/plugins/akeebabackupwp/app/Solo/alice/configuration.php

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+<?php
+/**
+ * @package    solo
+ * @copyright  Copyright (c)2014-2019 Nicholas K. Dionysopoulos / Akeeba Ltd
+ * @license    GNU GPL version 3 or later
+ */
+
+// Protection against direct access
+defined('AKEEBAENGINE') or die();
+
+use Akeeba\Engine\Configuration;
+
+/**
+ * The Akeeba Engine configuration registry class
+ */
+class AliceConfiguration extends Configuration
+{
+	/** @var string Default NameSpace */
+	protected $defaultNameSpace = 'global';
+
+	/** @var array Array keys which may contain stock directory definitions */
+	protected  $directory_containing_keys = array(
+		'akeeba.basic.output_directory'
+	);
+
+	/** @var array Keys whose default values should never be overridden */
+	protected $protected_nodes = array();
+
+	/** @var array The registry data */
+	protected $registry = array();
+
+	/** @var int The currently loaded profile */
+	public $activeProfile = null;
+
+	public function __construct()
+	{
+		// Assisted Singleton pattern
+		if(function_exists('debug_backtrace'))
+		{
+			$caller = debug_backtrace();
+			$caller = $caller[1];
+			if($caller['class'] != 'AliceFactory')
+			{
+				trigger_error("You can't create a direct descendant of ".__CLASS__, E_USER_ERROR);
+			}
+		}
+
+		// Create the default namespace
+		$this->makeNameSpace($this->defaultNameSpace);
+
+		// Create a default configuration
+		$this->reset();
+	}
+}
+