/**
* Open the stream and return the associated resource.
*
* @access protected
* @param string $streamName Stream name (e.g. path or URL).
* @param \Hoa\Stream\Context $context Context.
* @return resource
* @throw \Hoa\File\Exception\FileDoesNotExist
* @throw \Hoa\File\Exception
*/
protected function &_open($streamName, \Hoa\Stream\Context $context = null)
{
static $createModes = array(parent::MODE_READ);
if (!in_array($this->getMode(), $createModes)) {
throw new Exception('Open mode are not supported; given %d. Only %s are supported.', 0, array($this->getMode(), implode(', ', $createModes)));
}
preg_match('#^(\\w+)://#', $streamName, $match);
if ((isset($match[1]) && $match[1] == 'file' || !isset($match[1])) && !file_exists($streamName)) {
throw new Exception\FileDoesNotExist('File %s does not exist.', 1, $streamName);
}
$out = parent::_open($streamName, $context);
return $out;
}
