LocalContextConnection::getApplication()   A
last analyzed

Complexity

Conditions 1
Paths 1

Size

Total Lines 4

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
dl 0
loc 4
rs 10
c 0
b 0
f 0
cc 1
nc 1
nop 0
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<?php
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/**
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 * AppserverIo\PersistenceContainerClient\Context\LocalContextConnection
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 *
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 * NOTICE OF LICENSE
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 *
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 * This source file is subject to the Open Software License (OSL 3.0)
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 * that is available through the world-wide-web at this URL:
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 * http://opensource.org/licenses/osl-3.0.php
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 *
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 * PHP version 5
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 *
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 * @author    Tim Wagner <[email protected]>
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 * @copyright 2015 TechDivision GmbH <[email protected]>
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 * @license   http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
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 * @link      https://github.com/appserver-io/rmi
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 * @link      http://www.appserver.io
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 */
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namespace AppserverIo\RemoteMethodInvocation;
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use AppserverIo\Collections\CollectionInterface;
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use AppserverIo\Psr\Application\ApplicationInterface;
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use AppserverIo\Psr\EnterpriseBeans\BeanContextInterface;
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/**
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 * Connection implementation to invoke a local method call.
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 *
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 * @author    Tim Wagner <[email protected]>
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 * @copyright 2015 TechDivision GmbH <[email protected]>
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 * @license   http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
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 * @link      https://github.com/appserver-io/rmi
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 * @link      http://www.appserver.io
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 *
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 * @deprecated Use \AppserverIo\RemoteMethodInvocation\LocalProxy instead
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 */
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class LocalContextConnection implements ConnectionInterface
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{
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    /**
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     * The storage for the sessions.
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     *
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     * @var \AppserverIo\Collections\CollectionInterface
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     */
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    protected $sessions = null;
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    /**
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     * The application instance.
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     *
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     * @var \AppserverIo\Psr\Application\ApplicationInterface
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     */
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    protected $application;
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    /**
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     * The bean manager instance to load the local bean instance with.
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     *
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     * @var \AppserverIo\Psr\EnterpriseBeans\BeanContextInterface
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     */
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    protected $beanManager;
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    /**
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     * The local bean instance we're the proxy for.
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     *
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     * @var object
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     */
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    protected $instance;
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    /**
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     * Injects the application instance for the local connection.
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     *
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     * @param \AppserverIo\Psr\Application\ApplicationInterface $application The application instance
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     *
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     * @return void
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     */
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    public function injectApplication(ApplicationInterface $application)
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    {
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        $this->application = $application;
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    }
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    /**
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     * Returns the application instance.
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     *
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     * @return \AppserverIo\Psr\Application\ApplicationInterface The application instance
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     */
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    public function getApplication()
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    {
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        return $this->application;
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    }
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    /**
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     * Injects the collection for the sessions.
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     *
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     * @param \AppserverIo\Collections\CollectionInterface $sessions The collection for the sessions
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     *
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     * @return void
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     */
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    public function injectSessions(CollectionInterface $sessions)
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    {
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        $this->sessions = $sessions;
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    }
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    /**
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     * Returns the collection with the sessions.
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     *
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     * @return \AppserverIo\Collections\CollectionInterface The collection with the sessions
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     */
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    public function getSessions()
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    {
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        return $this->sessions;
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    }
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    /**
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     * Sends the remote method call to the container instance.
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     *
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     * @param \AppserverIo\RemoteMethodInvocation\RemoteMethodInterface $remoteMethod The remote method instance
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     *
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     * @return mixed The response from the container
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     * @see AppserverIo\RemoteMethodInvocation\ConnectionInterface::send()
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     */
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    public function send(RemoteMethodInterface $remoteMethod)
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    {
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        return $this->getApplication()->search(BeanContextInterface::IDENTIFIER)->invoke($remoteMethod, $this->getSessions());
0 ignored issues
show
Bug introduced by
The method search() does not seem to exist on object<AppserverIo\Psr\A...n\ApplicationInterface>.

This check looks for calls to methods that do not seem to exist on a given type. It looks for the method on the type itself as well as in inherited classes or implemented interfaces.

This is most likely a typographical error or the method has been renamed.

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    }
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    /**
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     * Initializes a new session instance.
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     *
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     * @return \AppserverIo\RemoteMethodInvocation\SessionInterface The session instance
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     * @see \AppserverIo\RemoteMethodInvocation\ConnectionInterface::createContextSession()
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     */
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    public function createContextSession()
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    {
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        $this->sessions->add($session = new ContextSession($this));
0 ignored issues
show
Bug introduced by
It seems like you code against a concrete implementation and not the interface AppserverIo\Collections\CollectionInterface as the method add() does only exist in the following implementations of said interface: AppserverIo\Collections\ArrayList, AppserverIo\Collections\Dictionary, AppserverIo\Collections\HashMap, AppserverIo\Collections\IdentityDictionary, AppserverIo\Collections\TreeMap, AppserverIo\RemoteMethodInvocation\ContextSession.

Let’s take a look at an example:

interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}

In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break.

Available Fixes

  1. Change the type-hint for the parameter:

    class AuthSystem
    {
        public function authenticate(MyUser $user) { /* ... */ }
    }
    
  2. Add an additional type-check:

    class AuthSystem
    {
        public function authenticate(User $user)
        {
            if ($user instanceof MyUser) {
                $this->logger->info(/** ... */);
            }
    
            // or alternatively
            if ( ! $user instanceof MyUser) {
                throw new \LogicException(
                    '$user must be an instance of MyUser, '
                   .'other instances are not supported.'
                );
            }
    
        }
    }
    
Note: PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case.
  1. Add the method to the interface:

    interface User
    {
        /** @return string */
        public function getPassword();
    
        /** @return string */
        public function getDisplayName();
    }
    
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        return $session;
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    }
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}
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