ConfigurationFactory::injectSignalSlotDispatcher() - Code Metrics - Inspection of "[FEATURE] Introduce post configuration process sig..." - romm/formz - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — tmp ( a1aace )

by Romain

created 2017-05-14 20:43 UTC

ConfigurationFactory::injectSignalSlotDispatcher() A

↳ Parent: Project

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	1

<?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\Configuration;

use Romm\ConfigurationObject\ConfigurationObjectFactory;
use Romm\ConfigurationObject\ConfigurationObjectInstance;
use Romm\Formz\Service\CacheService;
use Romm\Formz\Service\ContextService;
use Romm\Formz\Service\HashService;
use Romm\Formz\Service\Traits\ExtendedSelfInstantiateTrait;
use Romm\Formz\Service\TypoScriptService;
use TYPO3\CMS\Core\SingletonInterface;
use TYPO3\CMS\Extbase\SignalSlot\Dispatcher;

/**
 * This class is used to build and manage the whole FormZ configuration: from a
 * plain configuration array, it builds an entire tree object which will give
 * all the features from the `configuration_object` extension (parent
 * inheritance, array keys save, etc.).
 */
class ConfigurationFactory implements SingletonInterface
{
    use ExtendedSelfInstantiateTrait;

    const POST_CONFIGURATION_PROCESS_SIGNAL = 'postConfigurationProcess';

    /**
     * @var TypoScriptService
     */
    protected $typoScriptService;

    /**
     * @var Dispatcher
     */
    protected $signalSlotDispatcher;

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

    /**
     * @var array
     */
    protected $cacheIdentifiers = [];

    /**
     * Returns the global FormZ configuration.
     *
     * Two cache layers are used:
     *
     * - A local cache which will avoid fetching the configuration every time
     *   the current script needs it.
     * - A system cache, which will store the configuration instance when it has
     *   been built, improving performance for next scripts.
     *
     * @return ConfigurationObjectInstance
     */
    public function getFormzConfiguration()
    {
        $cacheIdentifier = $this->getCacheIdentifier();

        if (false === array_key_exists($cacheIdentifier, $this->instances)) {
            $this->instances[$cacheIdentifier] = $this->getFormzConfigurationFromCache($cacheIdentifier);
        }

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

    /**
     * Will fetch the configuration from cache, and build it if not found. It
     * wont be stored in cache if any error is found. This is done this way to
     * avoid the integrator to be forced to flush caches when errors are found.
     *
     * @param string $cacheIdentifier
     * @return ConfigurationObjectInstance
     */
    protected function getFormzConfigurationFromCache($cacheIdentifier)
    {
        $cacheInstance = CacheService::get()->getCacheInstance();

        if ($cacheInstance->has($cacheIdentifier)) {
            $instance = $cacheInstance->get($cacheIdentifier);
        } else {
            $instance = $this->buildFormzConfiguration();

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

        return $instance;
    }

    /**
     * @see getFormzConfiguration()
     *
     * @return ConfigurationObjectInstance
     */
    protected function buildFormzConfiguration()
    {
        $configuration = $this->typoScriptService->getFormzConfiguration();
        $instance = ConfigurationObjectFactory::getInstance()
            ->get(Configuration::class, $configuration);

        /** @var Configuration $instanceObject */
        $instanceObject = $instance->getObject(true);

        $this->callPostConfigurationProcessSignal($instanceObject);

        $instanceObject->calculateHash();

        return $instance;
    }

    /**
     * If you need to modify the configuration object after it has been built
     * using the TypoScript configuration, you can connect a slot on the signal
     * below.
     *
     * Note that the signal will be dispatched only once, as the configuration
     * object is latter put in cache. Therefore, your slots will be called only
     * once too and need to be aware of it.
     *
     * Example (`ext_localconf.php`):
     *
     * $signalSlotDispatcher = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(
     *     \TYPO3\CMS\Extbase\SignalSlot\Dispatcher::class
     * );
     * $signalSlotDispatcher->connect(
     *     \Romm\Formz\Configuration\ConfigurationFactory::class,
     *     \Romm\Formz\Configuration\ConfigurationFactory::POST_CONFIGURATION_PROCESS_SIGNAL,
     *     function (\Romm\Formz\Configuration\Configuration $configuration) {
     *         $configuration->getView()->setPartialRootPath(
     *             50,
     *             'EXT:my_extension/Resources/Private/Partials/FormZ/'
     *         );
     *     }
     * );
     *
     * @param Configuration $configuration
     */
    protected function callPostConfigurationProcessSignal(Configuration $configuration)
    {
        $this->signalSlotDispatcher->dispatch(
            __CLASS__,
            self::POST_CONFIGURATION_PROCESS_SIGNAL,
            [$configuration]
        );
    }

    /**
     * @return string
     */
    protected function getCacheIdentifier()
    {
        $contextHash = ContextService::get()->getContextHash();

        if (false === array_key_exists($contextHash, $this->cacheIdentifiers)) {
            $configuration = $this->typoScriptService->getFormzConfiguration();

            $this->cacheIdentifiers[$contextHash] = 'formz-configuration-' . HashService::get()->getHash(serialize($configuration));
        }

        return $this->cacheIdentifiers[$contextHash];
    }

    /**
     * @param TypoScriptService $typoScriptService
     */
    public function injectTypoScriptService(TypoScriptService $typoScriptService)
    {
        $this->typoScriptService = $typoScriptService;
    }

    /**
     * @param Dispatcher $signalSlotDispatcher
     */
    public function injectSignalSlotDispatcher(Dispatcher $signalSlotDispatcher)
    {
        $this->signalSlotDispatcher = $signalSlotDispatcher;
    }
}


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\Configuration;
15
16			use Romm\ConfigurationObject\ConfigurationObjectFactory;
17			use Romm\ConfigurationObject\ConfigurationObjectInstance;
18			use Romm\Formz\Service\CacheService;
19			use Romm\Formz\Service\ContextService;
20			use Romm\Formz\Service\HashService;
21			use Romm\Formz\Service\Traits\ExtendedSelfInstantiateTrait;
22			use Romm\Formz\Service\TypoScriptService;
23			use TYPO3\CMS\Core\SingletonInterface;
24			use TYPO3\CMS\Extbase\SignalSlot\Dispatcher;
25
26			/**
27			* This class is used to build and manage the whole FormZ configuration: from a
28			* plain configuration array, it builds an entire tree object which will give
29			* all the features from the `configuration_object` extension (parent
30			* inheritance, array keys save, etc.).
31			*/
32			class ConfigurationFactory implements SingletonInterface
33			{
34			use ExtendedSelfInstantiateTrait;
35
36			const POST_CONFIGURATION_PROCESS_SIGNAL = 'postConfigurationProcess';
37
38			/**
39			* @var TypoScriptService
40			*/
41			protected $typoScriptService;
42
43			/**
44			* @var Dispatcher
45			*/
46			protected $signalSlotDispatcher;
47
48			/**
49			* @var ConfigurationObjectInstance[]
50			*/
51			protected $instances = [];
52
53			/**
54			* @var array
55			*/
56			protected $cacheIdentifiers = [];
57
58			/**
59			* Returns the global FormZ configuration.
60			*
61			* Two cache layers are used:
62			*
63			* - A local cache which will avoid fetching the configuration every time
64			* the current script needs it.
65			* - A system cache, which will store the configuration instance when it has
66			* been built, improving performance for next scripts.
67			*
68			* @return ConfigurationObjectInstance
69			*/
70			public function getFormzConfiguration()
71			{
72			$cacheIdentifier = $this->getCacheIdentifier();
73
74			if (false === array_key_exists($cacheIdentifier, $this->instances)) {
75			$this->instances[$cacheIdentifier] = $this->getFormzConfigurationFromCache($cacheIdentifier);
76			}
77
78			return $this->instances[$cacheIdentifier];
79			}
80
81			/**
82			* Will fetch the configuration from cache, and build it if not found. It
83			* wont be stored in cache if any error is found. This is done this way to
84			* avoid the integrator to be forced to flush caches when errors are found.
85			*
86			* @param string $cacheIdentifier
87			* @return ConfigurationObjectInstance
88			*/
89			protected function getFormzConfigurationFromCache($cacheIdentifier)
90			{
91			$cacheInstance = CacheService::get()->getCacheInstance();
92
93			if ($cacheInstance->has($cacheIdentifier)) {
94			$instance = $cacheInstance->get($cacheIdentifier);
95			} else {
96			$instance = $this->buildFormzConfiguration();
97
98			if (false === $instance->getValidationResult()->hasErrors()) {
99			$cacheInstance->set($cacheIdentifier, $instance);
100			}
101			}
102
103			return $instance;
104			}
105
106			/**
107			* @see getFormzConfiguration()
108			*
109			* @return ConfigurationObjectInstance
110			*/
111			protected function buildFormzConfiguration()
112			{
113			$configuration = $this->typoScriptService->getFormzConfiguration();
114			$instance = ConfigurationObjectFactory::getInstance()
115			->get(Configuration::class, $configuration);
116
117			/** @var Configuration $instanceObject */
118			$instanceObject = $instance->getObject(true);
119
120			$this->callPostConfigurationProcessSignal($instanceObject);
121
122			$instanceObject->calculateHash();
123
124			return $instance;
125			}
126
127			/**
128			* If you need to modify the configuration object after it has been built
129			* using the TypoScript configuration, you can connect a slot on the signal
130			* below.
131			*
132			* Note that the signal will be dispatched only once, as the configuration
133			* object is latter put in cache. Therefore, your slots will be called only
134			* once too and need to be aware of it.
135			*
136			* Example (`ext_localconf.php`):
137			*
138			* $signalSlotDispatcher = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(
139			* \TYPO3\CMS\Extbase\SignalSlot\Dispatcher::class
140			* );
141			* $signalSlotDispatcher->connect(
142			* \Romm\Formz\Configuration\ConfigurationFactory::class,
143			* \Romm\Formz\Configuration\ConfigurationFactory::POST_CONFIGURATION_PROCESS_SIGNAL,
144			* function (\Romm\Formz\Configuration\Configuration $configuration) {
145			* $configuration->getView()->setPartialRootPath(
146			* 50,
147			* 'EXT:my_extension/Resources/Private/Partials/FormZ/'
148			* );
149			* }
150			* );
151			*
152			* @param Configuration $configuration
153			*/
154			protected function callPostConfigurationProcessSignal(Configuration $configuration)
155			{
156			$this->signalSlotDispatcher->dispatch(
157			__CLASS__,
158			self::POST_CONFIGURATION_PROCESS_SIGNAL,
159			[$configuration]
160			);
161			}
162
163			/**
164			* @return string
165			*/
166			protected function getCacheIdentifier()
167			{
168			$contextHash = ContextService::get()->getContextHash();
169
170			if (false === array_key_exists($contextHash, $this->cacheIdentifiers)) {
171			$configuration = $this->typoScriptService->getFormzConfiguration();
172
173			$this->cacheIdentifiers[$contextHash] = 'formz-configuration-' . HashService::get()->getHash(serialize($configuration));
174			}
175
176			return $this->cacheIdentifiers[$contextHash];
177			}
178
179			/**
180			* @param TypoScriptService $typoScriptService
181			*/
182			public function injectTypoScriptService(TypoScriptService $typoScriptService)
183			{
184			$this->typoScriptService = $typoScriptService;
185			}
186
187			/**
188			* @param Dispatcher $signalSlotDispatcher
189			*/
190			public function injectSignalSlotDispatcher(Dispatcher $signalSlotDispatcher)
191			{
192			$this->signalSlotDispatcher = $signalSlotDispatcher;
193			}
194			}
195

romm / formz

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ConfigurationFactory::injectSignalSlotDispatcher() A

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