| 1 |  |  | <?php namespace AdammBalogh\KeyValueStore\Adapter\SharedMemoryAdapter; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | use AdammBalogh\KeyValueStore\Adapter\Util; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  | use AdammBalogh\KeyValueStore\Exception\KeyNotFoundException; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |  * @SuppressWarnings(PHPMD.UnusedFormalParameter) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  | trait KeyTrait | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |      * Removes a key. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |      * @param string $key | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |      * @return bool True if the deletion was successful, false if the deletion was unsuccessful. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |      * @throws \Exception | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |     public function delete($key) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |         try { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |             $this->get($key); | 
                            
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                | 24 |  |  |         } catch (KeyNotFoundException $e) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |             return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |         if (!$this->shmProxy->remove($this->client, $key)) { | 
                            
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                | 29 |  |  |             throw new \Exception('Shm remove error'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |         return true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |      * Sets a key's time to live in seconds. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |      * @param string $key | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |      * @param int $seconds | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |      * @return bool True if the timeout was set, false if the timeout could not be set. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |      * @throws \Exception | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 44 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 45 |  |  |     public function expire($key, $seconds) | 
            
                                                                        
                            
            
                                    
            
            
                | 46 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 47 |  |  |         try { | 
            
                                                                        
                            
            
                                    
            
            
                | 48 |  |  |             $value = $this->get($key); | 
                            
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                | 49 |  |  |         } catch (KeyNotFoundException $e) { | 
            
                                                                        
                            
            
                                    
            
            
                | 50 |  |  |             return false; | 
            
                                                                        
                            
            
                                    
            
            
                | 51 |  |  |         } | 
            
                                                                        
                            
            
                                    
            
            
                | 52 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 53 |  |  |         return $this->set($key, Util::getDataWithExpire($value, $seconds, time())); | 
                            
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                | 54 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |      * Returns the remaining time to live of a key that has a timeout. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |      * @param string $key | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |      * @return int Ttl in seconds. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |      * @throws KeyNotFoundException | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |      * @throws \Exception | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |     public function getTtl($key) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |         if (!$this->shmProxy->has($this->client, $key)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |             throw new KeyNotFoundException(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |         $getResult = $this->shmProxy->get($this->client, $key); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |         $unserialized = @unserialize($getResult); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |         if (!Util::hasInternalExpireTime($unserialized)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |             throw new \Exception('Cannot retrieve ttl'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |         return $this->handleTtl($key, $unserialized['ts'], $unserialized['s']); | 
                            
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                | 80 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |      * Determines if a key exists. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |      * @param string $key | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |      * @return bool True if the key does exist, false if the key does not exist. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |      * @throws \Exception | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |     public function has($key) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |         try { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |             $this->get($key); | 
                            
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                | 95 |  |  |         } catch (KeyNotFoundException $e) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |             return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |         return true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |      * Removes the existing timeout on key, turning the key from volatile (a key with an expire set) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |      * to persistent (a key that will never expire as no timeout is associated). | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |      * @param string $key | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |      * @return bool True if the persist was success, false if the persis was unsuccessful. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |      * @throws \Exception | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |     public function persist($key) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  |         if (!$this->shmProxy->has($this->client, $key)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |             return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |         $getResult = $this->shmProxy->get($this->client, $key); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |         $unserialized = @unserialize($getResult); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |         if (!Util::hasInternalExpireTime($unserialized)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |             return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |         try { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |             $this->handleTtl($key, $unserialized['ts'], $unserialized['s']); | 
                            
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                | 127 |  |  |         } catch (KeyNotFoundException $e) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |             return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |         return $this->set($key, $unserialized['v']); | 
                            
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                | 132 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 133 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 134 |  |  |  | 
            
                        
This check looks for methods that are used by a trait but not required by it.
To illustrate, let’s look at the following code example
The trait
Idableprovides a methodequalsIdthat in turn relies on the methodgetId(). If this method does not exist on a class mixing in this trait, the method will fail.Adding the
getId()as an abstract method to the trait will make sure it is available.