/**
* 执行application
*
* @access public
* @return mixed
*/
public function run()
{
$req = req();
if (!in_array($req->method(), static::$support_method)) {
throw HttpError::not_implemented();
}
$url = parse_url($req->requestUri());
return $this->dispatch($url['path']);
}
/**
* 分发请求到对应的controller
* 执行并返回结果
*
* @param string $url
* @param array $params
* @access public
* @return mixed
*/
public function dispatch($url, array $params = array())
{
if (DEBUG) {
$logger = \Onion\logger('mvc');
}
$url = strtolower(rtrim($url, '/'));
if (DEBUG) {
$logger->info('Request url:' . req()->requestUri());
}
list($class, $args) = $this->match($url);
if (DEBUG) {
$logger->debug('Dispatch url to controller: ' . $class);
}
if (!$class || !class_exists($class)) {
throw HttpError::page_not_found(array('controller' => $class));
}
if ($params) {
$args = array_merge($args, $params);
}
fire_event($this, BEFORE_DISPATCH_EVENT, array($url, $class, $args));
$controller = new $class();
if (method_exists($controller, '__before_run')) {
// 如果__before_run返回了内容，就直接完成动作
// 可以在这里进行某些阻断操作
// 正常的内容不应该通过这里输出
if ($resp = call_user_func_array(array($controller, '__before_run'), $args)) {
return $resp instanceof Response ? $resp : resp()->setBody($resp);
}
}
$request = req();
$method = $request->method();
// head方法除了不输出数据之外，和get方法没有区别
if ($method == 'HEAD') {
$method = 'GET';
}
if (DEBUG) {
$log = 'Call controller [' . $class . '] method [' . $method . ']';
if ($args) {
$log .= ' with ' . json_encode($args);
}
$logger->info($log);
}
// 执行controller动作并返回结果
// 不检查method是否存在，用is_callable()
// 保留__call()重载方法的方式
if (!is_callable(array($controller, $method))) {
throw HttpError::method_not_allowed(array('url' => $url, 'class' => $class));
}
$resp = call_user_func_array(array($controller, $method), $args);
// 这里有机会对输出结果进行进一步处理
if (method_exists($controller, '__after_run')) {
$controller->__after_run($resp);
}
fire_event($this, AFTER_DISPATCH_EVENT, array($url, $class, $args, $resp));
return $resp instanceof Response ? $resp : resp()->setBody($resp);
}
