/**
* Execute the handler
*
* @param CommandInterface $command The command
* @param CommandChainInterface $chain The chain executing the command
* @return mixed|null If a handler breaks, returns the break condition. NULL otherwise.
*/
public function execute(CommandInterface $command, CommandChainInterface $chain)
{
$parts = explode('.', $command->getName());
$method = '_' . $parts[0] . ucfirst($parts[1]);
if (method_exists($this, $method)) {
return $this->{$method}($command);
}
}
/**
* @param MessageInterface|CommandInterface $message
* @return CommandHandlerInterface
* @throws CommandBusException
*/
protected function getHandler(CommandInterface $message)
{
$messageName = $message->getName();
$handlerId = $this->resolver->resolve($messageName);
if (!$this->locator->has($handlerId)) {
throw new CommandBusException(sprintf("Cannot instantiate handler '%s' for command '%s'", $handlerId, $messageName));
}
/** @var CommandHandlerInterface $handler */
$handler = $this->locator->get($handlerId);
if (!$handler instanceof CommandHandlerInterface) {
throw new CommandBusException(sprintf("Handler '%s' returned by locator for command '%s' should implement CommandHandlerInterface", $handlerId, $messageName));
}
return $handler;
}
/**
* Command handler
*
* Only handles before.action commands to check authorization rules.
*
* @param CommandInterface $command The command
* @param CommandChainInterface $chain The chain executing the command
* @throws ControllerExceptionRequestForbidden If the user is authentic and the actions is not allowed.
* @throws ControllerExceptionRequestNotAuthorized If the user is not authentic and the action is not allowed.
* @return boolean Return TRUE if action is permitted. FALSE otherwise.
*/
public function execute(CommandInterface $command, CommandChainInterface $chain)
{
$parts = explode('.', $command->getName());
if ($parts[0] == 'before') {
$action = $parts[1];
if ($this->canExecute($action) === false) {
$message = 'Action ' . ucfirst($action) . ' Not Allowed';
if ($this->getUser()->isAuthentic()) {
if (!$this->getUser()->isEnabled()) {
$message = 'Account disabled';
}
throw new ControllerExceptionRequestForbidden($message);
} else {
throw new ControllerExceptionRequestNotAuthorized($message);
}
return false;
}
}
return true;
}
/**
* Command handler
*
* @param CommandInterface $command The command
* @param CommandChainInterface $chain The chain executing the command
* @return mixed|null If a handler breaks, returns the break condition. NULL otherwise.
*/
public function execute(CommandInterface $command, CommandChainInterface $chain)
{
$type = '';
$package = '';
$subject = '';
if ($command->getSubject()) {
$identifier = $command->getSubject()->getIdentifier()->toArray();
$package = $identifier['package'];
if ($identifier['path']) {
$type = array_shift($identifier['path']);
$subject = $identifier['name'];
} else {
$type = $identifier['name'];
}
}
$parts = explode('.', $command->getName());
$when = array_shift($parts);
// Before or After
$name = StringInflector::implode($parts);
// Action
// Create Specific and Generic event names
$event_specific = 'on' . ucfirst($when) . ucfirst($package) . ucfirst($subject) . ucfirst($type) . $name;
$event_generic = 'on' . ucfirst($when) . ucfirst($type) . $name;
// Clone the context
if ($this->isEventImmutable()) {
$event = clone $command;
} else {
$event = $command;
}
// Create event object to check for propagation
$event = $this->getEventPublisher()->publishEvent($event_specific, $event->getAttributes(), $event->getSubject());
// Ensure event can be propagated and event name is different
if ($event->canPropagate() && $event_specific != $event_generic) {
$event->setName($event_generic);
$this->getEventPublisher()->publishEvent($event);
}
}
