Memcached::getSetting()   A
last analyzed

Complexity

Conditions 2
Paths 2

Size

Total Lines 5
Code Lines 3

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 3
CRAP Score 2

Importance

Changes 0
Metric Value
cc 2
eloc 3
nc 2
nop 1
dl 0
loc 5
ccs 3
cts 3
cp 1
crap 2
rs 9.4285
c 0
b 0
f 0
1
<?php
2
namespace FMUP\Cache\Driver;
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use FMUP\Cache\CacheInterface;
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use FMUP\Cache\Exception;
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/**
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 * Class Memcached
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 * This driver needs MEMCACHED installed on server to work properly
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 * @package FMUP\Cache\Driver
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 */
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class Memcached implements CacheInterface
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{
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    const SETTINGS_MEMCACHED = 'SETTINGS_MEMCACHED';
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    /**
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     * @see http://php.net/manual/fr/memcached.expiration.php
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     */
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    const SETTINGS_TTL_IN_SECOND = 'SETTINGS_TTL_IN_SECOND';
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    const SETTINGS_CACHE_PREFIX = 'SETTINGS_CACHE_PREFIX';
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    private $isAvailable = null;
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    private $memcachedInstance = null;
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    private $settings = array();
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    /**
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     * Check whether memcached is available
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     * @return bool
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     */
29 1
    public function isAvailable()
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    {
31 1
        if (is_null($this->isAvailable)) {
32 1
            $this->isAvailable = class_exists('\Memcached');
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        }
34 1
        return $this->isAvailable;
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    }
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    /**
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     * constructor of Memcached
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     * @param array $settings
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     */
41 15
    public function __construct($settings = array())
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    {
43 15
        if (isset($settings[self::SETTINGS_MEMCACHED])) {
44 1
            $this->setMemcachedInstance($settings[self::SETTINGS_MEMCACHED]);
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        }
46 15
        $this->settings = $settings;
47 15
    }
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    /**
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     * Get the memcached instance
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     * @return \Memcached
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     * @throws Exception
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     */
54 5
    public function getMemcachedInstance()
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    {
56 5
        if (!$this->memcachedInstance) {
57 2
            if (!$this->isAvailable()) {
58 1
                throw new Exception('Memcached is not available');
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            }
60 1
            $this->memcachedInstance = $this->createMemcached();
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        }
62 4
        return $this->memcachedInstance;
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    }
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    /**
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     * @return \Memcached
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     * @codeCoverageIgnore
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     */
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    protected function createMemcached()
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    {
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        return new \Memcached();
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    }
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    /**
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     * Define a memcached instance
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     * @param \Memcached $memcachedInstance
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     * @return $this
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     */
79 3
    public function setMemcachedInstance(\Memcached $memcachedInstance)
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    {
81 3
        $this->memcachedInstance = $memcachedInstance;
82 3
        return $this;
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    }
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    /**
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     * @param string $key
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     * @return string
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     */
89 4
    protected function getCacheKey($key)
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    {
91 4
        $prefix = (string)$this->getSetting(self::SETTINGS_CACHE_PREFIX);
92 4
        return $prefix . $key;
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    }
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    /**
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     * Check whether a key exists
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     * @param string $key
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     * @return bool
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     * @throws Exception
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     */
102 2
    public function has($key)
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    {
104 2
        if (!$this->isAvailable()) {
105 1
            throw new Exception('Memcached is not available');
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        }
107 1
        $key = $this->getCacheKey($key);
108 1
        $keys = array_flip($this->getMemcachedInstance()->getAllKeys());
109 1
        return isset($keys[$key]);
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    }
111
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    /**
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     * @param string $key
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     * @return mixed
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     * @throws Exception
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     */
117 2 View Code Duplication
    public function get($key)
0 ignored issues
show
Duplication introduced by
This method seems to be duplicated in your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

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118
    {
119 2
        if (!$this->isAvailable()) {
120 1
            throw new Exception('Memcached is not available');
121
        }
122 1
        $key = $this->getCacheKey($key);
123 1
        return $this->getMemcachedInstance()->get($key);
124
    }
125
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    /**
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     * Define a
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     * @param string $key
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     * @param mixed $value
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     * @return $this
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     * @throws Exception
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     */
133 3
    public function set($key, $value)
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    {
135 3
        if (!$this->isAvailable()) {
136 1
            throw new Exception('Memcached is not available');
137
        }
138 2
        $ttl = (int)$this->getSetting(self::SETTINGS_TTL_IN_SECOND);
139 2
        $key = $this->getCacheKey($key);
140 2
        if (!$this->getMemcachedInstance()->set($key, $value, $ttl)) {
141 1
            throw new Exception(
142 1
                'Error while inserting value in memcached : ' . $this->getMemcachedInstance()->getResultMessage(),
143 1
                $this->getMemcachedInstance()->getResultCode()
144
            );
145
        }
146 1
        return $this;
147
    }
148
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    /**
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     * Delete a value in memcache
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     * @param string $key
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     * @return $this
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     * @throws Exception
154
     */
155 3 View Code Duplication
    public function remove($key)
0 ignored issues
show
Duplication introduced by
This method seems to be duplicated in your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

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156
    {
157 3
        if (!$this->isAvailable()) {
158 1
            throw new Exception('Memcached is not available');
159
        }
160 2
        $key = $this->getCacheKey($key);
161 2
        if (!$this->getMemcachedInstance()->delete($key)) {
162 1
            throw new Exception('Error while deleting key in memcached');
163
        }
164 1
        return $this;
165
    }
166
167
    /**
168
     * Define a setting
169
     * @param string $setting
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     * @param mixed $value
171
     * @return $this
172
     */
173 1
    public function setSetting($setting, $value)
174
    {
175 1
        $this->settings[(string)$setting] = $value;
176 1
        return $this;
177
    }
178
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    /**
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     * Retrieve a defined setting
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     * @param string $setting
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     * @return mixed|null
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     */
184 5
    public function getSetting($setting)
185
    {
186 5
        $setting = (string) $setting;
187 5
        return isset($this->settings[$setting]) ? $this->settings[$setting] : null;
188
    }
189
}
190