/**
* Invokes a task handler method using the request arguments.
*
* @param \WordPress\Cli\TaskHandlerInterface $handler
* @param string $method
*
* @throws \WordPress\Cli\Exception if method cannot be called
*
* @return mixed
*/
protected function invokeHandler(TaskHandlerInterface $handler, $method)
{
$params = array();
$reflection = new ReflectionMethod($handler, $method);
foreach ($reflection->getParameters() as $i => $param) {
$name = $param->getName();
if ($this->request->hasArg($name)) {
$params[$name] = $this->request->getArg($name);
} else {
if ($this->request->hasArg($i)) {
$params[$name] = $this->request->getArg($i);
} else {
if ($param->isDefaultValueAvailable()) {
$params[$name] = $param->getDefaultValue();
} else {
throw new Exception("Missing parameter '{$name}'.");
}
}
}
}
return $reflection->invokeArgs($handler, $params);
}
