CacheManager::getInstance() - Code Metrics - Inspection of "Removed deprecated method as planned in V6" - PHPSocialNetwork/phpfastcache - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — V6 ( 198802...ac8655 )

by Georges

created 2017-01-01 09:00 UTC

CacheManager::getInstance() C

↳ Parent: CacheManager

Complexity

Conditions	11
Paths	24

Size

Total Lines	41
Code Lines	27

Duplication

Lines	0
Ratio	0 %

Importance

Changes	2
Bugs	0	Features	1

Metric	Value
cc	11
eloc	27
c	2
b	0
f	1
nc	24
nop	2
dl	0
loc	41
rs	5.2653

How to fix Complexity

<?php
/**
 *
 * This file is part of phpFastCache.
 *
 * @license MIT License (MIT)
 *
 * For full copyright and license information, please see the docs/CREDITS.txt file.
 *
 * @author Khoa Bui (khoaofgod)  <[email protected]> http://www.phpfastcache.com
 * @author Georges.L (Geolim4)  <[email protected]>
 *
 */

namespace phpFastCache;

use phpFastCache\Core\Pool\ExtendedCacheItemPoolInterface;
use phpFastCache\Exceptions\phpFastCacheDriverCheckException;

/**
 * Class CacheManager
 * @package phpFastCache
 *
 * @method static ExtendedCacheItemPoolInterface Apc() Apc($config = []) Return a driver "apc" instance
 * @method static ExtendedCacheItemPoolInterface Apcu() Apcu($config = []) Return a driver "apcu" instance
 * @method static ExtendedCacheItemPoolInterface Cookie() Cookie($config = []) Return a driver "cookie" instance
 * @method static ExtendedCacheItemPoolInterface Couchbase() Couchbase($config = []) Return a driver "couchbase" instance
 * @method static ExtendedCacheItemPoolInterface Files() Files($config = []) Return a driver "files" instance
 * @method static ExtendedCacheItemPoolInterface Leveldb() Leveldb($config = []) Return a driver "leveldb" instance
 * @method static ExtendedCacheItemPoolInterface Memcache() Memcache($config = []) Return a driver "memcache" instance
 * @method static ExtendedCacheItemPoolInterface Memcached() Memcached($config = []) Return a driver "memcached" instance
 * @method static ExtendedCacheItemPoolInterface Mongodb() Mongodb($config = []) Return a driver "mongodb" instance
 * @method static ExtendedCacheItemPoolInterface Predis() Predis($config = []) Return a driver "predis" instance
 * @method static ExtendedCacheItemPoolInterface Redis() Redis($config = []) Return a driver "redis" instance
 * @method static ExtendedCacheItemPoolInterface Sqlite() Sqlite($config = []) Return a driver "sqlite" instance
 * @method static ExtendedCacheItemPoolInterface Ssdb() Ssdb($config = []) Return a driver "ssdb" instance
 * @method static ExtendedCacheItemPoolInterface Wincache() Wincache($config = []) Return a driver "wincache" instance
 * @method static ExtendedCacheItemPoolInterface Xcache() Xcache($config = []) Return a driver "xcache" instance
 * @method static ExtendedCacheItemPoolInterface Zenddisk() Zenddisk($config = []) Return a driver "zend disk cache" instance
 * @method static ExtendedCacheItemPoolInterface Zendshm() Zendshm($config = []) Return a driver "zend memory cache" instance
 *
 */
class CacheManager
{
    /**
     * @var int
     */
    public static $ReadHits = 0;

    /**
     * @var int
     */
    public static $WriteHits = 0;

    /**
     * @var ExtendedCacheItemPoolInterface[]
     */
    protected static $config = [
      'itemDetailedDate' => false,// Specify if the item must provide detailed creation/modification dates
      'autoTmpFallback' => false,// Automatically attempt to fallback to temporary directory if the cache fails to write on the specified directory
      'secureFileManipulation' => false,// Provide a secure file manipulation mechanism, on intensive usage the performance can be affected.
      'ignoreSymfonyNotice' => false,// Ignore Symfony notice for Symfony project which do not makes use of PhpFastCache's Symfony Bundle
      'defaultTtl' => 900,// Default time-to-live in second
      'securityKey' => 'auto',// The securityKey that will be used to create sub-directory
      'htaccess' => true,// Auto-generate .htaccess if tit is missing
      'default_chmod' => 0777, // 0777 recommended
      'path' => '',// if not set will be the value of sys_get_temp_dir()
      'fallback' => false, //Fall back when old driver is not support
      'limited_memory_each_object' => 4096, // maximum size (bytes) of object store in memory
      'compress_data' => false, // compress stored data, if the backend supports it
    ];

    /**
     * @var string
     */
    protected static $namespacePath;

    /**
     * @var ExtendedCacheItemPoolInterface[]
     */
    protected static $instances = [];

    /**
     * @param string $driver
     * @param array $config
     * @return ExtendedCacheItemPoolInterface
     * @throws phpFastCacheDriverCheckException
     */
    public static function getInstance($driver = 'auto', $config = [])
    {
        static $badPracticeOmeter = [];

        /**
         * @todo: Standardize a method for driver name
         */
        $driver = self::standardizeDriverName($driver);
        $config = array_merge(self::$config, $config);
        if (!$driver || $driver === 'Auto') {
            $driver = self::getAutoClass($config);
        }

        $instance = crc32($driver . serialize($config));
        if (!isset(self::$instances[ $instance ])) {
            $badPracticeOmeter[$driver] = 1;
            if(!$config['ignoreSymfonyNotice'] && interface_exists('Symfony\Component\HttpKernel\KernelInterface') && !class_exists('phpFastCache\Bundle\phpFastCacheBundle')){
                trigger_error('A Symfony Bundle to make the PhpFastCache integration more easier is now available here: https://github.com/PHPSocialNetwork/phpfastcache-bundle', E_USER_NOTICE);
            }
            $class = self::getNamespacePath() . $driver . '\Driver';
            try{
                self::$instances[ $instance ] = new $class($config);
                self::$instances[ $instance ]->setEventManager(EventManager::getInstance());
            }catch(phpFastCacheDriverCheckException $e){
                $fallback = self::standardizeDriverName($config['fallback']);
                if($fallback && $fallback !== $driver){
                    $class = self::getNamespacePath() . $fallback . '\Driver';
                    self::$instances[ $instance ] = new $class($config);
                    self::$instances[ $instance ]->setEventManager(EventManager::getInstance());
                    trigger_error(sprintf('The "%s" driver is unavailable at the moment, the fallback driver "%s" has been used instead.', $driver, $fallback), E_USER_WARNING);
                }else{
                    throw new phpFastCacheDriverCheckException($e->getMessage(), $e->getCode(), $e);
                }
            }
        } else if(++$badPracticeOmeter[$driver] >= 5){
           trigger_error('[' . $driver . '] Calling many times CacheManager::getInstance() for already instanced drivers is a bad practice and have a significant impact on performances.
           See https://github.com/PHPSocialNetwork/phpfastcache/wiki/[V5]-Why-calling-getInstance%28%29-each-time-is-a-bad-practice-%3F');
        }

        return self::$instances[ $instance ];
    }

    /**
     * This method is intended for internal
     * use only and should not be used for
     * any external development use the
     * getInstances() method instead
     *
     * @internal
     * @return ExtendedCacheItemPoolInterface[]
     */
    public static function getInstances()
    {
        return self::$instances;
    }

    /**
     * This method is intended for internal
     * use only and should not be used for
     * any external development use the
     * getInstances() method instead
     *
     * @internal
     * @return ExtendedCacheItemPoolInterface[]
     */
    public static function &getInternalInstances()
    {
        return self::$instances;
    }

    /**
     * @param $config
     * @return string
     * @throws phpFastCacheDriverCheckException
     */
    public static function getAutoClass($config = [])
    {
        static $autoDriver;

        if ($autoDriver === null) {
            foreach (self::getStaticSystemDrivers() as $driver) {
                try {
                    self::getInstance($driver, $config);
                    $autoDriver = $driver;
                } catch (phpFastCacheDriverCheckException $e) {
                    continue;
                }
            }
        }

        return $autoDriver;
    }

    /**
     * @param string $name
     * @param array $arguments
     * @return \Psr\Cache\CacheItemPoolInterface
     */
    public static function __callStatic($name, $arguments)
    {
        $options = (array_key_exists(0, $arguments) && is_array($arguments) ? $arguments[ 0 ] : []);

        return self::getInstance($name, $options);
    }

    /**
     * @return bool
     */
    public static function clearInstances()
    {
        self::$instances = [];

        gc_collect_cycles();
        return !count(self::$instances);
    }

    /**
     * @return string
     */
    public static function getNamespacePath()
    {
        return self::$namespacePath ?: __NAMESPACE__ . '\Drivers\\';
    }

    /**
     * @param string $path
     */
    public static function setNamespacePath($path)
    {
        self::$namespacePath = $path;
    }

    /**
     * @param $name string|array
     * @param mixed $value
     * @throws \InvalidArgumentException
     */
    public static function setDefaultConfig($name, $value = null)
    {
        if (is_array($name)) {
            self::$config = array_merge(self::$config, $name);

        } else if (is_string($name)){
            self::$config[ $name ] = $value;
        }else{
            throw new \InvalidArgumentException('Invalid variable type: $name');
        }
    }

    /**
     * @return array
     */
    public static function getDefaultConfig()
    {
        return self::$config;
    }

    /**
     * @return array
     */
    public static function getStaticSystemDrivers()
    {
        return [
          'Apc',
          'Apcu',
          'Couchbase',
          'Devnull',
          'Files',
          'Leveldb',
          'Memcache',
          'Memcached',
          'Memstatic',
          'Mongodb',
          'Predis',
          'Redis',
          'Ssdb',
          'Sqlite',
          'Wincache',
          'Xcache',
        ];
    }

    /**
     * @return array
     */
    public static function getStaticAllDrivers()
    {
        return array_merge(self::getStaticSystemDrivers(), [
            'Devtrue',
            'Devfalse',
            'Cookie',
        ]);
    }

    /**
     * @param string $driverName
     * @return string
     */
    public static function standardizeDriverName($driverName)
    {
        return ucfirst(strtolower(trim($driverName)));
    }
}


1			<?php
2			/**
3			*
4			* This file is part of phpFastCache.
5			*
6			* @license MIT License (MIT)
7			*
8			* For full copyright and license information, please see the docs/CREDITS.txt file.
9			*
10			* @author Khoa Bui (khoaofgod) <[email protected]> http://www.phpfastcache.com
11			* @author Georges.L (Geolim4) <[email protected]>
12			*
13			*/
14
15			namespace phpFastCache;
16
17			use phpFastCache\Core\Pool\ExtendedCacheItemPoolInterface;
18			use phpFastCache\Exceptions\phpFastCacheDriverCheckException;
19
20			/**
21			* Class CacheManager
22			* @package phpFastCache
23			*
24			* @method static ExtendedCacheItemPoolInterface Apc() Apc($config = []) Return a driver "apc" instance
25			* @method static ExtendedCacheItemPoolInterface Apcu() Apcu($config = []) Return a driver "apcu" instance
26			* @method static ExtendedCacheItemPoolInterface Cookie() Cookie($config = []) Return a driver "cookie" instance
27			* @method static ExtendedCacheItemPoolInterface Couchbase() Couchbase($config = []) Return a driver "couchbase" instance
28			* @method static ExtendedCacheItemPoolInterface Files() Files($config = []) Return a driver "files" instance
29			* @method static ExtendedCacheItemPoolInterface Leveldb() Leveldb($config = []) Return a driver "leveldb" instance
30			* @method static ExtendedCacheItemPoolInterface Memcache() Memcache($config = []) Return a driver "memcache" instance
31			* @method static ExtendedCacheItemPoolInterface Memcached() Memcached($config = []) Return a driver "memcached" instance
32			* @method static ExtendedCacheItemPoolInterface Mongodb() Mongodb($config = []) Return a driver "mongodb" instance
33			* @method static ExtendedCacheItemPoolInterface Predis() Predis($config = []) Return a driver "predis" instance
34			* @method static ExtendedCacheItemPoolInterface Redis() Redis($config = []) Return a driver "redis" instance
35			* @method static ExtendedCacheItemPoolInterface Sqlite() Sqlite($config = []) Return a driver "sqlite" instance
36			* @method static ExtendedCacheItemPoolInterface Ssdb() Ssdb($config = []) Return a driver "ssdb" instance
37			* @method static ExtendedCacheItemPoolInterface Wincache() Wincache($config = []) Return a driver "wincache" instance
38			* @method static ExtendedCacheItemPoolInterface Xcache() Xcache($config = []) Return a driver "xcache" instance
39			* @method static ExtendedCacheItemPoolInterface Zenddisk() Zenddisk($config = []) Return a driver "zend disk cache" instance
40			* @method static ExtendedCacheItemPoolInterface Zendshm() Zendshm($config = []) Return a driver "zend memory cache" instance
41			*
42			*/
43			class CacheManager
44			{
45			/**
46			* @var int
47			*/
48			public static $ReadHits = 0;
49
50			/**
51			* @var int
52			*/
53			public static $WriteHits = 0;
54
55			/**
56			* @var ExtendedCacheItemPoolInterface[]
57			*/
58			protected static $config = [
59			'itemDetailedDate' => false,// Specify if the item must provide detailed creation/modification dates
60			'autoTmpFallback' => false,// Automatically attempt to fallback to temporary directory if the cache fails to write on the specified directory
61			'secureFileManipulation' => false,// Provide a secure file manipulation mechanism, on intensive usage the performance can be affected.
62			'ignoreSymfonyNotice' => false,// Ignore Symfony notice for Symfony project which do not makes use of PhpFastCache's Symfony Bundle
63			'defaultTtl' => 900,// Default time-to-live in second
64			'securityKey' => 'auto',// The securityKey that will be used to create sub-directory
65			'htaccess' => true,// Auto-generate .htaccess if tit is missing
66			'default_chmod' => 0777, // 0777 recommended
67			'path' => '',// if not set will be the value of sys_get_temp_dir()
68			'fallback' => false, //Fall back when old driver is not support
69			'limited_memory_each_object' => 4096, // maximum size (bytes) of object store in memory
70			'compress_data' => false, // compress stored data, if the backend supports it
71			];
72
73			/**
74			* @var string
75			*/
76			protected static $namespacePath;
77
78			/**
79			* @var ExtendedCacheItemPoolInterface[]
80			*/
81			protected static $instances = [];
82
83			/**
84			* @param string $driver
85			* @param array $config
86			* @return ExtendedCacheItemPoolInterface
87			* @throws phpFastCacheDriverCheckException
88			*/
89			public static function getInstance($driver = 'auto', $config = [])
90			{
91			static $badPracticeOmeter = [];
92
93			/**
94			* @todo: Standardize a method for driver name
95			*/
96			$driver = self::standardizeDriverName($driver);
97			$config = array_merge(self::$config, $config);
98			if (!$driver \|\| $driver === 'Auto') {
99			$driver = self::getAutoClass($config);
100			}
101
102			$instance = crc32($driver . serialize($config));
103			if (!isset(self::$instances[ $instance ])) {
104			$badPracticeOmeter[$driver] = 1;
105			if(!$config['ignoreSymfonyNotice'] && interface_exists('Symfony\Component\HttpKernel\KernelInterface') && !class_exists('phpFastCache\Bundle\phpFastCacheBundle')){
106			trigger_error('A Symfony Bundle to make the PhpFastCache integration more easier is now available here: https://github.com/PHPSocialNetwork/phpfastcache-bundle', E_USER_NOTICE);
107			}
108			$class = self::getNamespacePath() . $driver . '\Driver';
109			try{
110			self::$instances[ $instance ] = new $class($config);
111			self::$instances[ $instance ]->setEventManager(EventManager::getInstance());
112			}catch(phpFastCacheDriverCheckException $e){
113			$fallback = self::standardizeDriverName($config['fallback']);
114			if($fallback && $fallback !== $driver){
115			$class = self::getNamespacePath() . $fallback . '\Driver';
116			self::$instances[ $instance ] = new $class($config);
117			self::$instances[ $instance ]->setEventManager(EventManager::getInstance());
118			trigger_error(sprintf('The "%s" driver is unavailable at the moment, the fallback driver "%s" has been used instead.', $driver, $fallback), E_USER_WARNING);
119			}else{
120			throw new phpFastCacheDriverCheckException($e->getMessage(), $e->getCode(), $e);
121			}
122			}
123			} else if(++$badPracticeOmeter[$driver] >= 5){
124			trigger_error('[' . $driver . '] Calling many times CacheManager::getInstance() for already instanced drivers is a bad practice and have a significant impact on performances.
125			See https://github.com/PHPSocialNetwork/phpfastcache/wiki/[V5]-Why-calling-getInstance%28%29-each-time-is-a-bad-practice-%3F');
126			}
127
128			return self::$instances[ $instance ];
129			}
130
131			/**
132			* This method is intended for internal
133			* use only and should not be used for
134			* any external development use the
135			* getInstances() method instead
136			*
137			* @internal
138			* @return ExtendedCacheItemPoolInterface[]
139			*/
140			public static function getInstances()
141			{
142			return self::$instances;
143			}
144
145			/**
146			* This method is intended for internal
147			* use only and should not be used for
148			* any external development use the
149			* getInstances() method instead
150			*
151			* @internal
152			* @return ExtendedCacheItemPoolInterface[]
153			*/
154			public static function &getInternalInstances()
155			{
156			return self::$instances;
157			}
158
159			/**
160			* @param $config
161			* @return string
162			* @throws phpFastCacheDriverCheckException
163			*/
164			public static function getAutoClass($config = [])
165			{
166			static $autoDriver;
167
168			if ($autoDriver === null) {
169			foreach (self::getStaticSystemDrivers() as $driver) {
170			try {
171			self::getInstance($driver, $config);
172			$autoDriver = $driver;
173			} catch (phpFastCacheDriverCheckException $e) {
174			continue;
175			}
176			}
177			}
178
179			return $autoDriver;
180			}
181
182			/**
183			* @param string $name
184			* @param array $arguments
185			* @return \Psr\Cache\CacheItemPoolInterface
186			*/
187			public static function __callStatic($name, $arguments)
188			{
189			$options = (array_key_exists(0, $arguments) && is_array($arguments) ? $arguments[ 0 ] : []);
190
191			return self::getInstance($name, $options);
192			}
193
194			/**
195			* @return bool
196			*/
197			public static function clearInstances()
198			{
199			self::$instances = [];
200
201			gc_collect_cycles();
202			return !count(self::$instances);
203			}
204
205			/**
206			* @return string
207			*/
208			public static function getNamespacePath()
209			{
210			return self::$namespacePath ?: __NAMESPACE__ . '\Drivers\\';
211			}
212
213			/**
214			* @param string $path
215			*/
216			public static function setNamespacePath($path)
217			{
218			self::$namespacePath = $path;
219			}
220
221			/**
222			* @param $name string\|array
223			* @param mixed $value
224			* @throws \InvalidArgumentException
225			*/
226			public static function setDefaultConfig($name, $value = null)
227			{
228			if (is_array($name)) {
229			self::$config = array_merge(self::$config, $name);
			0 ignored issues – show Documentation Bug introduced 2016-08-20 15:10 UTC by Report Bug Copy Issue Report It seems like `array_merge(self::$config, $name)` of type `array` is incompatible with the declared type `array<integer,object<php...acheItemPoolInterface>>` of property `$config`. Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property. Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property.. Loading history...
230			} else if (is_string($name)){
231			self::$config[ $name ] = $value;
232			}else{
233			throw new \InvalidArgumentException('Invalid variable type: $name');
234			}
235			}
236
237			/**
238			* @return array
239			*/
240			public static function getDefaultConfig()
241			{
242			return self::$config;
243			}
244
245			/**
246			* @return array
247			*/
248			public static function getStaticSystemDrivers()
249			{
250			return [
251			'Apc',
252			'Apcu',
253			'Couchbase',
254			'Devnull',
255			'Files',
256			'Leveldb',
257			'Memcache',
258			'Memcached',
259			'Memstatic',
260			'Mongodb',
261			'Predis',
262			'Redis',
263			'Ssdb',
264			'Sqlite',
265			'Wincache',
266			'Xcache',
267			];
268			}
269
270			/**
271			* @return array
272			*/
273			public static function getStaticAllDrivers()
274			{
275			return array_merge(self::getStaticSystemDrivers(), [
276			'Devtrue',
277			'Devfalse',
278			'Cookie',
279			]);
280			}
281
282			/**
283			* @param string $driverName
284			* @return string
285			*/
286			public static function standardizeDriverName($driverName)
287			{
288			return ucfirst(strtolower(trim($driverName)));
289			}
290			}
291

PHPSocialNetwork / phpfastcache

Push — V6 ( 198802...ac8655 )

CacheManager::getInstance() C

Complexity

Size

Duplication

Importance

How to fix Complexity

Long Method

Duplication Side-by-Side

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