/**
* Reads configuration from the given source and creates
* a Piece_Flow_Config object.
*
* @param mixed $source
* @param string $driverName
* @param string $cacheDirectory
* @param string $configDirectory
* @param string $configExtension
* @return Piece_Flow_Config
* @throws PIECE_FLOW_ERROR_NOT_FOUND
* @static
*/
function &read($source, $driverName, $cacheDirectory, $configDirectory, $configExtension)
{
if (!is_callable($source)) {
$flowName = $source;
if (!is_null($configDirectory)) {
$source = str_replace('_', '/', $source);
$source = "{$configDirectory}/{$source}{$configExtension}";
}
if (is_null($driverName)) {
$driverName = strtoupper(substr(strrchr($source, '.'), 1));
if ($driverName != 'YAML' && $driverName != 'XML') {
$driverName = 'YAML';
}
}
if ($driverName == 'XML') {
if (version_compare(phpversion(), '5.0.0', '>=')) {
$driverName = 'XML5';
} else {
$driverName = 'XML4';
}
}
} else {
$driverName = 'PHPArray';
}
$class = "Piece_Flow_ConfigReader_{$driverName}";
if (!Piece_Flow_ClassLoader::loaded($class)) {
Piece_Flow_ClassLoader::load($class);
if (Piece_Flow_Error::hasErrors()) {
$return = null;
return $return;
}
if (!Piece_Flow_ClassLoader::loaded($class)) {
Piece_Flow_Error::push(PIECE_FLOW_ERROR_NOT_FOUND, "The class [ {$class} ] not found in the loaded file.");
$return = null;
return $return;
}
}
$driver =& new $class($source, $cacheDirectory);
$config =& $driver->read();
if (Piece_Flow_Error::hasErrors()) {
$return = null;
return $return;
}
if (!is_callable($source)) {
if (is_null($configDirectory)) {
$flowName = basename($source);
$positionOfExtension = strrpos($flowName, '.');
if ($positionOfExtension !== false) {
$flowName = substr($flowName, 0, $positionOfExtension);
}
}
$config->setName($flowName);
}
return $config;
}
/**
* Loads an action class corresponding to the given class name.
*
* @param string $class
* @throws PIECE_FLOW_ERROR_NOT_GIVEN
* @throws PIECE_FLOW_ERROR_NOT_FOUND
*/
function load($class)
{
if (!Piece_Flow_ClassLoader::loaded($class)) {
if (is_null($GLOBALS['PIECE_FLOW_Action_Directory'])) {
Piece_Flow_Error::push(PIECE_FLOW_ERROR_NOT_GIVEN, 'The action directory is not given.');
return;
}
Piece_Flow_ClassLoader::load($class, $GLOBALS['PIECE_FLOW_Action_Directory']);
if (Piece_Flow_Error::hasErrors()) {
return;
}
if (!Piece_Flow_ClassLoader::loaded($class)) {
Piece_Flow_Error::push(PIECE_FLOW_ERROR_NOT_FOUND, "The class [ {$class} ] not found in the loaded file.");
}
}
}