FormObjectFactory::getCacheInstance() - Code Metrics - Inspection of "WIP" - romm/formz - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — feature/improve-form-object ( f89bd2...6080f1 )

by Romain

created 2017-05-12 09:48 UTC

FormObjectFactory::getCacheInstance() A

↳ Parent: FormObjectFactory

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	4
rs	10
c	0
b	0
f	0
cc	1
eloc	2
nc	1
nop	0

<?php
/*
 * 2017 Romain CANON <[email protected]>
 *
 * This file is part of the TYPO3 FormZ project.
 * It is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License, either
 * version 3 of the License, or any later version.
 *
 * For the full copyright and license information, see:
 * http://www.gnu.org/licenses/gpl-3.0.html
 */

namespace Romm\Formz\Form\FormObject;

use Romm\ConfigurationObject\ConfigurationObjectInterface;
use Romm\Formz\Configuration\Configuration;
use Romm\Formz\Configuration\ConfigurationFactory;
use Romm\Formz\Core\Core;
use Romm\Formz\Exceptions\ClassNotFoundException;
use Romm\Formz\Exceptions\DuplicateEntryException;
use Romm\Formz\Exceptions\EntryNotFoundException;
use Romm\Formz\Exceptions\InvalidArgumentTypeException;
use Romm\Formz\Exceptions\InvalidArgumentValueException;
use Romm\Formz\Form\FormInterface;
use Romm\Formz\Form\FormObject\Builder\DefaultFormObjectBuilder;
use Romm\Formz\Form\FormObject\Builder\FormObjectBuilderInterface;
use Romm\Formz\Service\CacheService;
use Romm\Formz\Service\StringService;
use Romm\Formz\Service\Traits\ExtendedSelfInstantiateTrait;
use TYPO3\CMS\Core\Cache\Frontend\FrontendInterface;
use TYPO3\CMS\Core\SingletonInterface;

/**
 * Factory class that will manage form object instances.
 *
 * You can fetch a new instance by calling one of the following methods:
 * `getInstanceFromFormInstance()` or `getInstanceFromClassName()`
 *
 * @see \Romm\Formz\Form\FormObject\FormObject
 */
class FormObjectFactory implements SingletonInterface
{
    use ExtendedSelfInstantiateTrait;

    /**
     * @var FormObject[]
     */
    protected $instances = [];

    /**
     * @var FormObjectStatic[]
     */
    protected $static = [];

    /**
     * @var FormObjectProxy[]
     */
    protected $proxy = [];

    /**
     * Returns the form object for the given form instance. The form instance
     * must have been defined first in this factory, or an exception is thrown.
     *
     * @param FormInterface $form
     * @return FormObject
     * @throws EntryNotFoundException
     */
    public function getInstanceWithFormInstance(FormInterface $form)
    {
        if (false === $this->formInstanceWasRegistered($form)) {
            throw EntryNotFoundException::formObjectInstanceNotFound($form);
        }

        return $this->instances[spl_object_hash($form)];
    }

    /**
     * Checks that the given form instance was registered in this factory.
     *
     * @param FormInterface $form
     * @return bool
     */
    public function formInstanceWasRegistered(FormInterface $form)
    {
        return isset($this->instances[spl_object_hash($form)]);
    }

    /**
     * Registers a new form instance.
     *
     * @param FormInterface $form
     * @param string        $name
     * @throws DuplicateEntryException
     * @throws InvalidArgumentValueException
     */
    public function registerFormInstance(FormInterface $form, $name)
    {
        if (empty($name)) {
            throw InvalidArgumentValueException::formNameEmpty($form);
        }

        if ($this->formInstanceWasRegistered($form)) {
            throw DuplicateEntryException::formObjectInstanceAlreadyRegistered($form, $name);
        }

        $hash = spl_object_hash($form);
        $this->instances[$hash] = $this->getInstanceWithClassName(get_class($form), $name);
        $this->instances[$hash]->setForm($form);
    }

    /**
     * A shortcut function to register the given form instance (if it was not
     * already registered) and return the form object.
     *
     * @param FormInterface $form
     * @param string        $name
     * @return FormObject
     */
    public function registerAndGetFormInstance(FormInterface $form, $name)
    {
        if (false === $this->formInstanceWasRegistered($form)) {
            $this->registerFormInstance($form, $name);
        }

        return $this->getInstanceWithFormInstance($form);
    }

    /**
     * Will create an instance of `FormObject` based on a class that implements
     * the interface `FormInterface`.
     *
     * @param string $className
     * @param string $name
     * @return FormObject
     */
    public function getInstanceWithClassName($className, $name)
    {
        /** @var FormObject $formObject */
        $formObject = Core::instantiate(FormObject::class, $name, $this->getStaticInstance($className));

        return $formObject;
    }

    /**
     * Returns the proxy object for the given form object and form instance.
     *
     * Please use with caution, as this is a very low level function!
     *
     * @param FormInterface $form
     * @return FormObjectProxy
     */
    public function getProxy(FormInterface $form)
    {
        $hash = spl_object_hash($form);

        if (false === isset($this->proxy[$hash])) {
            $this->proxy[$hash] = $this->getNewProxyInstance($form);
        }

        return $this->proxy[$hash];
    }

    /**
     * @param string $className
     * @return FormObjectStatic
     * @throws ClassNotFoundException
     * @throws InvalidArgumentTypeException
     */
    protected function getStaticInstance($className)
    {
        if (false === class_exists($className)) {
            throw ClassNotFoundException::wrongFormClassName($className);
        }

        if (false === in_array(FormInterface::class, class_implements($className))) {
            throw InvalidArgumentTypeException::wrongFormType($className);
        }

        $cacheIdentifier = $this->getCacheIdentifier($className);

        if (false === isset($this->static[$cacheIdentifier])) {
            $cacheInstance = $this->getCacheInstance();

            if ($cacheInstance->has($cacheIdentifier)) {
                $static = $cacheInstance->get($cacheIdentifier);
            } else {
                $static = $this->buildStaticInstance($className);
                $static->getObjectHash();

                if (false === $static->getDefinitionValidationResult()->hasErrors()) {
                    $cacheInstance->set($cacheIdentifier, $static);
                }
            }

            $this->addToGlobalConfiguration($static);

            $this->static[$cacheIdentifier] = $static;
        }

        return $this->static[$cacheIdentifier];
    }

    /**
     * Adds the given form configuration to the global FormZ configuration
     * object.
     *
     * @param FormObjectStatic $static
     */
    protected function addToGlobalConfiguration(FormObjectStatic $static)
    {
        if (false === $this->getGlobalConfiguration()->hasForm($static->getClassName())) {
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.
    }
}
            $this->getGlobalConfiguration()->addForm($static);
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.
    }
}
        }
    }

    /**
     * @param string $className
     * @return string
     */
    protected function getCacheIdentifier($className)
    {
        $sanitizedClassName = StringService::get()->sanitizeString(str_replace('\\', '-', $className));

        return 'form-object-' . $sanitizedClassName;
    }

    /**
     * Wrapper for unit tests.
     *
     * @param string $className
     * @return FormObjectStatic
     */
    protected function buildStaticInstance($className)
    {
        /** @var FormObjectBuilderInterface $builder */
        $builder = Core::instantiate(DefaultFormObjectBuilder::class);

        return $builder->getStaticInstance($className);
    }

    /**
     * Wrapper for unit tests.
     *
     * @param FormInterface $form
     * @return FormObjectProxy
     */
    protected function getNewProxyInstance(FormInterface $form)
    {
        $formObject = $this->getInstanceWithFormInstance($form);

        /** @var FormObjectProxy $formObjectProxy */
        $formObjectProxy = Core::instantiate(FormObjectProxy::class, $formObject, $form);

        return $formObjectProxy;
    }

    /**
     * @return Configuration|ConfigurationObjectInterface
     */
    protected function getGlobalConfiguration()
    {
        return ConfigurationFactory::get()->getFormzConfiguration()->getObject(true);
    }

    /**
     * @return FrontendInterface
     */
    protected function getCacheInstance()
    {
        return CacheService::get()->getCacheInstance();
    }
}


Push — feature/improve-form-object ( f89bd2...6080f1 )

FormObjectFactory::getCacheInstance() A

Complexity

Size

Duplication

Importance

Available Fixes

Available Fixes

1			<?php
2			/*
3			* 2017 Romain CANON <[email protected]>
4			*
5			* This file is part of the TYPO3 FormZ project.
6			* It is free software; you can redistribute it and/or modify it
7			* under the terms of the GNU General Public License, either
8			* version 3 of the License, or any later version.
9			*
10			* For the full copyright and license information, see:
11			* http://www.gnu.org/licenses/gpl-3.0.html
12			*/
13
14			namespace Romm\Formz\Form\FormObject;
15
16			use Romm\ConfigurationObject\ConfigurationObjectInterface;
17			use Romm\Formz\Configuration\Configuration;
18			use Romm\Formz\Configuration\ConfigurationFactory;
19			use Romm\Formz\Core\Core;
20			use Romm\Formz\Exceptions\ClassNotFoundException;
21			use Romm\Formz\Exceptions\DuplicateEntryException;
22			use Romm\Formz\Exceptions\EntryNotFoundException;
23			use Romm\Formz\Exceptions\InvalidArgumentTypeException;
24			use Romm\Formz\Exceptions\InvalidArgumentValueException;
25			use Romm\Formz\Form\FormInterface;
26			use Romm\Formz\Form\FormObject\Builder\DefaultFormObjectBuilder;
27			use Romm\Formz\Form\FormObject\Builder\FormObjectBuilderInterface;
28			use Romm\Formz\Service\CacheService;
29			use Romm\Formz\Service\StringService;
30			use Romm\Formz\Service\Traits\ExtendedSelfInstantiateTrait;
31			use TYPO3\CMS\Core\Cache\Frontend\FrontendInterface;
32			use TYPO3\CMS\Core\SingletonInterface;
33
34			/**
35			* Factory class that will manage form object instances.
36			*
37			* You can fetch a new instance by calling one of the following methods:
38			* `getInstanceFromFormInstance()` or `getInstanceFromClassName()`
39			*
40			* @see \Romm\Formz\Form\FormObject\FormObject
41			*/
42			class FormObjectFactory implements SingletonInterface
43			{
44			use ExtendedSelfInstantiateTrait;
45
46			/**
47			* @var FormObject[]
48			*/
49			protected $instances = [];
50
51			/**
52			* @var FormObjectStatic[]
53			*/
54			protected $static = [];
55
56			/**
57			* @var FormObjectProxy[]
58			*/
59			protected $proxy = [];
60
61			/**
62			* Returns the form object for the given form instance. The form instance
63			* must have been defined first in this factory, or an exception is thrown.
64			*
65			* @param FormInterface $form
66			* @return FormObject
67			* @throws EntryNotFoundException
68			*/
69			public function getInstanceWithFormInstance(FormInterface $form)
70			{
71			if (false === $this->formInstanceWasRegistered($form)) {
72			throw EntryNotFoundException::formObjectInstanceNotFound($form);
73			}
74
75			return $this->instances[spl_object_hash($form)];
76			}
77
78			/**
79			* Checks that the given form instance was registered in this factory.
80			*
81			* @param FormInterface $form
82			* @return bool
83			*/
84			public function formInstanceWasRegistered(FormInterface $form)
85			{
86			return isset($this->instances[spl_object_hash($form)]);
87			}
88
89			/**
90			* Registers a new form instance.
91			*
92			* @param FormInterface $form
93			* @param string $name
94			* @throws DuplicateEntryException
95			* @throws InvalidArgumentValueException
96			*/
97			public function registerFormInstance(FormInterface $form, $name)
98			{
99			if (empty($name)) {
100			throw InvalidArgumentValueException::formNameEmpty($form);
101			}
102
103			if ($this->formInstanceWasRegistered($form)) {
104			throw DuplicateEntryException::formObjectInstanceAlreadyRegistered($form, $name);
105			}
106
107			$hash = spl_object_hash($form);
108			$this->instances[$hash] = $this->getInstanceWithClassName(get_class($form), $name);
109			$this->instances[$hash]->setForm($form);
110			}
111
112			/**
113			* A shortcut function to register the given form instance (if it was not
114			* already registered) and return the form object.
115			*
116			* @param FormInterface $form
117			* @param string $name
118			* @return FormObject
119			*/
120			public function registerAndGetFormInstance(FormInterface $form, $name)
121			{
122			if (false === $this->formInstanceWasRegistered($form)) {
123			$this->registerFormInstance($form, $name);
124			}
125
126			return $this->getInstanceWithFormInstance($form);
127			}
128
129			/**
130			* Will create an instance of `FormObject` based on a class that implements
131			* the interface `FormInterface`.
132			*
133			* @param string $className
134			* @param string $name
135			* @return FormObject
136			*/
137			public function getInstanceWithClassName($className, $name)
138			{
139			/** @var FormObject $formObject */
140			$formObject = Core::instantiate(FormObject::class, $name, $this->getStaticInstance($className));
141
142			return $formObject;
143			}
144
145			/**
146			* Returns the proxy object for the given form object and form instance.
147			*
148			* Please use with caution, as this is a very low level function!
149			*
150			* @param FormInterface $form
151			* @return FormObjectProxy
152			*/
153			public function getProxy(FormInterface $form)
154			{
155			$hash = spl_object_hash($form);
156
157			if (false === isset($this->proxy[$hash])) {
158			$this->proxy[$hash] = $this->getNewProxyInstance($form);
159			}
160
161			return $this->proxy[$hash];
162			}
163
164			/**
165			* @param string $className
166			* @return FormObjectStatic
167			* @throws ClassNotFoundException
168			* @throws InvalidArgumentTypeException
169			*/
170			protected function getStaticInstance($className)
171			{
172			if (false === class_exists($className)) {
173			throw ClassNotFoundException::wrongFormClassName($className);
174			}
175
176			if (false === in_array(FormInterface::class, class_implements($className))) {
177			throw InvalidArgumentTypeException::wrongFormType($className);
178			}
179
180			$cacheIdentifier = $this->getCacheIdentifier($className);
181
182			if (false === isset($this->static[$cacheIdentifier])) {
183			$cacheInstance = $this->getCacheInstance();
184
185			if ($cacheInstance->has($cacheIdentifier)) {
186			$static = $cacheInstance->get($cacheIdentifier);
187			} else {
188			$static = $this->buildStaticInstance($className);
189			$static->getObjectHash();
190
191			if (false === $static->getDefinitionValidationResult()->hasErrors()) {
192			$cacheInstance->set($cacheIdentifier, $static);
193			}
194			}
195
196			$this->addToGlobalConfiguration($static);
197
198			$this->static[$cacheIdentifier] = $static;
199			}
200
201			return $this->static[$cacheIdentifier];
202			}
203
204			/**
205			* Adds the given form configuration to the global FormZ configuration
206			* object.
207			*
208			* @param FormObjectStatic $static
209			*/
210			protected function addToGlobalConfiguration(FormObjectStatic $static)
211			{
212			if (false === $this->getGlobalConfiguration()->hasForm($static->getClassName())) {
			0 ignored issues – show Bug introduced 2017-04-25 08:13 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `Romm\ConfigurationObject...gurationObjectInterface` as the method `hasForm()` does only exist in the following implementations of said interface: `Romm\Formz\Configuration\Configuration`. 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 Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } 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. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
213			$this->getGlobalConfiguration()->addForm($static);
			0 ignored issues – show Bug introduced 2017-04-25 08:13 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `Romm\ConfigurationObject...gurationObjectInterface` as the method `addForm()` does only exist in the following implementations of said interface: `Romm\Formz\Configuration\Configuration`. 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 Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } 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. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
214			}
215			}
216
217			/**
218			* @param string $className
219			* @return string
220			*/
221			protected function getCacheIdentifier($className)
222			{
223			$sanitizedClassName = StringService::get()->sanitizeString(str_replace('\\', '-', $className));
224
225			return 'form-object-' . $sanitizedClassName;
226			}
227
228			/**
229			* Wrapper for unit tests.
230			*
231			* @param string $className
232			* @return FormObjectStatic
233			*/
234			protected function buildStaticInstance($className)
235			{
236			/** @var FormObjectBuilderInterface $builder */
237			$builder = Core::instantiate(DefaultFormObjectBuilder::class);
238
239			return $builder->getStaticInstance($className);
240			}
241
242			/**
243			* Wrapper for unit tests.
244			*
245			* @param FormInterface $form
246			* @return FormObjectProxy
247			*/
248			protected function getNewProxyInstance(FormInterface $form)
249			{
250			$formObject = $this->getInstanceWithFormInstance($form);
251
252			/** @var FormObjectProxy $formObjectProxy */
253			$formObjectProxy = Core::instantiate(FormObjectProxy::class, $formObject, $form);
254
255			return $formObjectProxy;
256			}
257
258			/**
259			* @return Configuration\|ConfigurationObjectInterface
260			*/
261			protected function getGlobalConfiguration()
262			{
263			return ConfigurationFactory::get()->getFormzConfiguration()->getObject(true);
264			}
265
266			/**
267			* @return FrontendInterface
268			*/
269			protected function getCacheInstance()
270			{
271			return CacheService::get()->getCacheInstance();
272			}
273			}
274

romm / formz

Push — feature/improve-form-object ( f89bd2...6080f1 )

FormObjectFactory::getCacheInstance() A

Complexity

Size

Duplication

Importance

Available Fixes

Available Fixes

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