Configuration.php

<?php
 
/**
 * Configuration of SimpleSAMLphp
 *
 * @author Andreas Aakre Solberg, UNINETT AS. <andreas.solberg@uninett.no>
 * @package simpleSAMLphp
 * @version $Id$
 */
class SimpleSAML_Configuration {

	/**
	 * A default value which means that the given option is required.
	 */
	const REQUIRED_OPTION = '___REQUIRED_OPTION___';


	/**
	 * Associative array with mappings from instance-names to configuration objects.
	 */
	private static $instance = array();


	/**
	 * Configration directories.
	 *
	 * This associative array contains the mappings from configuration sets to
	 * configuration directories.
	 */
	private static $configDirs = array();


	/**
	 * Cache of loaded configuration files.
	 *
	 * The index in the array is the full path to the file.
	 */
	private static $loadedConfigs = array();


	/**
	 * The configuration array.
	 */
	private $configuration;


	/**
	 * The location which will be given when an error occurs.
	 */
	private $location;


	/**
	 * The file this configuration was loaded from.
	 */
	private $filename = NULL;



	/**
	 * Initializes a configuration from the given array.
	 *
	 * @param array $config  The configuration array.
	 * @param string $location  The location which will be given when an error occurs.
	 */
	public function __construct($config, $location) {
		assert('is_array($config)');
		assert('is_string($location)');

		$this->configuration = $config;