* @version 0.0.0
* @copyright Copyright(c) 2007, 2008 Roland Haeder, this is free software
* @license GNU GPL 3.0 or any newer version
* @link http://www.ship-simu.org
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
class FrameworkConfiguration {
/**
* The framework's main configuration array which will be initialized with
* hard-coded configuration data and might be overwritten/extended by
* config data from the database.
*/
private $config = array();
/**
* The configuration instance itself
*/
private static $cfgInstance = null;
// Some constants for the configuration system
const EXCEPTION_CONFIG_ENTRY_IS_EMPTY = 0xc00;
const EXCEPTION_CONFIG_ENTRY_WAS_NOT_FOUND = 0xc01;
/**
* Protected constructor
*/
protected function __construct () {
// Empty for now
}
/**
* "Create" a configuration instance
*/
public final static function createFrameworkConfiguration ($enableDebug = false) {
/**
* For singleton design pattern because we only need a one-time-run
* through the initial configuration.
*/
if (is_null(self::$cfgInstance)) {
// CFG: DEBUG-LEVEL
@error_reporting(E_ALL | E_STRICT);
/**
* Shall we enable the debug mode?
*/
if ($enableDebug) {
define('DEBUG_MODE', true);
}
/**
* Crate a config instance
*/
self::$cfgInstance = new FrameworkConfiguration();
}
/**
* Return the instance
*/
return self::$cfgInstance;
}
/**
* Getter for an instance of this class
*
* @return $cfgInstance An instance of this class
*/
public final static function getInstance () {
return self::$cfgInstance;
}
/**
* Setter for default time zone (must be correct!)
*
* @param $zone The time-zone string (e.g. Europe/Berlin)
* @return void
*/
public final function setDefaultTimezone ($zone) {
// At least 5.1.0 is required for this!
if (version_compare(phpversion(), "5.1.0")) {
@date_default_timezone_set($zone);
}
}
/**
* Setter for runtime magic quotes
*/
public final function setMagicQuotesRuntime ($enableQuotes) {
// Cast it to boolean
$enableQuotes = (boolean) $enableQuotes;
// Set it
@set_magic_quotes_runtime($enableQuotes);
}
/**
* A private include loader
*
* @param $arrayObject The array object with all include files
* @return void
*/
private function loadIncludes (ArrayObject $arrayObject) {
// Load only if there are includes defined
if (!is_null($arrayObject)) {
for ($idx = $arrayObject->getIterator(); $idx->valid(); $idx->next()) {
// Get include file
$inc = $idx->current();
// Is the file name really set?
if (!empty($inc)) {
// Base path added? (Uni* / Windows)
if ((substr($inc, 0, 1) != "/") && (substr($inc, 1, 1) != ":")) {
// Generate FQFN
$fqfn = sprintf("%s/inc/extra/%s", PATH, $inc);
} else {
// Base path is already added
$fqfn = $inc;
}
}
// Include them all here
require($fqfn);
}
}
}
/**
* Define the database type which must be valid and will not be verified.
*
* @param $type The database type. See path inc/database/.
* @return void
*/
public function defineDatabaseType ($type) {
// Is it defined or not?
if (!defined('_DB_TYPE')) {
// Cast to string
$type = (string) $type;
// Set the constant
define('_DB_TYPE', $type);
} else {
// Already defined! But we cannot throw an exception here... :(
ApplicationEntryPoint::app_die(sprintf("[%s:] Please define the database type only once in your application!",
__CLASS__
));
}
}
/**
* Define the local file path
*
* @param $path The database type. See path inc/database/.
* @return void
*/
public function definePath ($path) {
// Cast to string
$path = (string) $path;
// Replace backslashes with slashes
$path = str_replace("\\", "/", $path);
// Is it defined or not?
if ((!is_dir($path)) || (!is_readable($path))) {
// Is not a valid path
ApplicationEntryPoint::app_die(sprintf("[%s:] Invalid path (not found) specified. Please make sure it is created.",
__CLASS__
));
} elseif (!defined('PATH')) {
// Set the constant
define('PATH', $path);
} else {
// Already defined! But we cannot throw an exception here... :(
ApplicationEntryPoint::app_die(sprintf("[%s:] Please define the local file path only once in your application.",
__CLASS__
));
}
}
/**
* Read a configuration element.
*
* @param $cfgEntry The configuration element
* @return $cfgValue The fetched configuration value
* @throws ConfigEntryIsEmptyException If $cfgEntry is empty
* @throws ConfigEntryNotFoundException If a configuration element
* was not found
*/
public function readConfig ($cfgEntry) {
// Cast to string
$cfgEntry = (string) $cfgEntry;
// Is a valid configuration entry provided?
if (empty($cfgEntry)) {
// Entry is empty
throw new ConfigEntryIsEmptyException($this, self::EXCEPTION_CONFIG_ENTRY_IS_EMPTY);
} elseif (!isset($this->config[$cfgEntry])) {
// Entry was not found!
throw new ConfigEntryNotFoundException(array(__CLASS__, $cfgEntry), self::EXCEPTION_CONFIG_ENTRY_WAS_NOT_FOUND);
}
// Debug message
if ((defined('DEBUG_CONFIG')) || (defined('DEBUG_ALL'))) {
echo "[".__METHOD__."] Configuration entry ".$cfgEntry." requested.
\n";
}
// Return the requested value
return $this->config[$cfgEntry];
}
/**
* Set a configuration entry.
*
* @param $cfgEntry The configuration entry we want to add/change
* @param $cfgValue The configuration value we want to set
* @return void
* @throws ConfigEntryIsEmptyException If $cfgEntry is empty
*/
public final function setConfigEntry ($cfgEntry, $cfgValue) {
// Cast to string
$cfgEntry = (string) $cfgEntry;
$cfgValue = (string) $cfgValue;
// Is a valid configuration entry provided?
if (empty($cfgEntry)) {
// Entry is empty
throw new ConfigEntryIsEmptyException($this, self::EXCEPTION_CONFIG_ENTRY_IS_EMPTY);
}
// Set the configuration value
$this->config[$cfgEntry] = $cfgValue;
// Resort the array
ksort($this->config);
}
/**
* Compatiblity method to return this class' name
*
* @return __CLASS__ This class' name
*/
public function __toString () {
return get_class($this);
}
} // END - class
// [EOF]
?>