| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | namespace Glooby\TaskBundle\Model; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  * @author Emil Kilhage | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 7 |  |  |  */ | 
            
                                                                        
                            
            
                                    
            
            
                | 8 |  |  | class QueuedTask implements QueuedTaskInterface | 
            
                                                                        
                            
            
                                    
            
            
                | 9 |  |  | { | 
            
                                                                        
                            
            
                                    
            
            
                | 10 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 11 |  |  |      * @var int | 
            
                                                                        
                            
            
                                    
            
            
                | 12 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 13 |  |  |     protected $id; | 
            
                                                                        
                            
            
                                    
            
            
                | 14 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 15 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 16 |  |  |      * @var string | 
            
                                                                        
                            
            
                                    
            
            
                | 17 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 18 |  |  |     protected $name; | 
            
                                                                        
                            
            
                                    
            
            
                | 19 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 20 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 21 |  |  |      * @var \DateTime | 
            
                                                                        
                            
            
                                    
            
            
                | 22 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 23 |  |  |     protected $created; | 
            
                                                                        
                            
            
                                    
            
            
                | 24 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 25 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 26 |  |  |      * @var array | 
            
                                                                        
                            
            
                                    
            
            
                | 27 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 28 |  |  |     protected $params = []; | 
            
                                                                        
                            
            
                                    
            
            
                | 29 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 30 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 31 |  |  |      * @var ScheduleInterface | 
            
                                                                        
                            
            
                                    
            
            
                | 32 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 33 |  |  |     protected $schedule; | 
            
                                                                        
                            
            
                                    
            
            
                | 34 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 35 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 36 |  |  |      * @var \DateTime | 
            
                                                                        
                            
            
                                    
            
            
                | 37 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 38 |  |  |     protected $executeAt; | 
            
                                                                        
                            
            
                                    
            
            
                | 39 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 40 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 41 |  |  |      * @var \DateTime | 
            
                                                                        
                            
            
                                    
            
            
                | 42 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 43 |  |  |     protected $started; | 
            
                                                                        
                            
            
                                    
            
            
                | 44 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 45 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 46 |  |  |      * @var \DateTime | 
            
                                                                        
                            
            
                                    
            
            
                | 47 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 48 |  |  |     protected $finished; | 
            
                                                                        
                            
            
                                    
            
            
                | 49 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 50 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 51 |  |  |      * @var \DateTime | 
            
                                                                        
                            
            
                                    
            
            
                | 52 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 53 |  |  |     protected $result; | 
            
                                                                        
                            
            
                                    
            
            
                | 54 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 55 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 56 |  |  |      * @var string | 
            
                                                                        
                            
            
                                    
            
            
                | 57 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 58 |  |  |     protected $status = self::STATUS_PENDING; | 
            
                                                                        
                            
            
                                    
            
            
                | 59 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 60 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 61 |  |  |      * @var string | 
            
                                                                        
                            
            
                                    
            
            
                | 62 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 63 |  |  |     protected $resolution = self::RESOLUTION_PENDING; | 
            
                                                                        
                            
            
                                    
            
            
                | 64 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 65 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 66 |  |  |      * QueuedTask constructor. | 
            
                                                                        
                            
            
                                    
            
            
                | 67 |  |  |      * @param string $name | 
            
                                                                        
                            
            
                                    
            
            
                | 68 |  |  |      * @param array $params | 
            
                                                                        
                            
            
                                    
            
            
                | 69 |  |  |      * @param \DateTime $executeAt | 
            
                                                                        
                            
            
                                    
            
            
                | 70 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 71 |  |  |     public function __construct($name, array $params = null, \DateTime $executeAt = null) | 
            
                                                                        
                            
            
                                    
            
            
                | 72 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 73 |  |  |         $this->name = $name; | 
            
                                                                        
                            
            
                                    
            
            
                | 74 |  |  |         $this->params = null === $params ? $params : []; | 
            
                                                                        
                            
            
                                    
            
            
                | 75 |  |  |         $this->executeAt = null === $executeAt ? new \DateTime() : $executeAt; | 
            
                                                                        
                            
            
                                    
            
            
                | 76 |  |  |         $this->created = new \DateTime(); | 
            
                                                                        
                            
            
                                    
            
            
                | 77 |  |  |         $this->status = self::STATUS_PENDING; | 
            
                                                                        
                            
            
                                    
            
            
                | 78 |  |  |         $this->resolution = self::RESOLUTION_PENDING; | 
            
                                                                        
                            
            
                                    
            
            
                | 79 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 80 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 81 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 82 |  |  |      * {@inheritdoc} | 
            
                                                                        
                            
            
                                    
            
            
                | 83 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 84 |  |  |     public function getId() | 
            
                                                                        
                            
            
                                    
            
            
                | 85 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 86 |  |  |         return $this->id; | 
            
                                                                        
                            
            
                                    
            
            
                | 87 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 88 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 89 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 90 |  |  |      * {@inheritdoc} | 
            
                                                                        
                            
            
                                    
            
            
                | 91 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |     public function getName() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |         return $this->name; | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 95 |  |  |     } | 
            
                                                                        
                                                                
            
                                    
            
            
                | 96 |  |  |  | 
            
                                                                        
                                                                
            
                                    
            
            
                | 97 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 98 |  |  |      * {@inheritdoc} | 
            
                                                                        
                            
            
                                    
            
            
                | 99 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |     public function getCreated() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |         return $this->created; | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 103 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 104 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 105 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 106 |  |  |      * {@inheritdoc} | 
            
                                                                        
                            
            
                                    
            
            
                | 107 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |     public function getExecuteAt() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |         return $this->executeAt; | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 111 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 112 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 113 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 114 |  |  |      * {@inheritdoc} | 
            
                                                                        
                            
            
                                    
            
            
                | 115 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |     public function getSchedule(): ScheduleInterface | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |         return $this->schedule; | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 119 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 120 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 121 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 122 |  |  |      * {@inheritdoc} | 
            
                                                                        
                            
            
                                    
            
            
                | 123 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |     public function setSchedule(ScheduleInterface $schedule) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |         $this->schedule = $schedule; | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 127 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 128 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 129 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 130 |  |  |      * {@inheritdoc} | 
            
                                                                        
                            
            
                                    
            
            
                | 131 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |     public function getParams() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |         return $this->params; | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 135 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 136 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 137 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 138 |  |  |      * {@inheritdoc} | 
            
                                                                        
                            
            
                                    
            
            
                | 139 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  |     public function hasParams() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |         return count($this->params) > 0; | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 143 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 144 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 145 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 146 |  |  |      * {@inheritdoc} | 
            
                                                                        
                            
            
                                    
            
            
                | 147 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |     public function getResult() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |         return $this->result; | 
                            
                    |  |  |  | 
                                                                                        
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                | 151 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 152 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 153 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 154 |  |  |      * {@inheritdoc} | 
            
                                                                        
                            
            
                                    
            
            
                | 155 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  |     public function getResolution() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  |         return $this->resolution; | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 159 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 160 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 161 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 162 |  |  |      * {@inheritdoc} | 
            
                                                                        
                            
            
                                    
            
            
                | 163 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |     public function getFinished() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |         return $this->finished; | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 167 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 168 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 169 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 170 |  |  |      * {@inheritdoc} | 
            
                                                                        
                            
            
                                    
            
            
                | 171 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  |     public function getStatus() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |         return $this->status; | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 175 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 176 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 177 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 178 |  |  |      * {@inheritdoc} | 
            
                                                                        
                            
            
                                    
            
            
                | 179 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  |     public function getStarted() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  |         return $this->started; | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 183 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 184 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 185 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 186 |  |  |      * @param \DateTime $started | 
            
                                                                        
                            
            
                                    
            
            
                | 187 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  |     protected function setStarted(\DateTime $started) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  |         $this->started = $started; | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 191 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 192 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 193 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 194 |  |  |      * @param \DateTime $finished | 
            
                                                                        
                            
            
                                    
            
            
                | 195 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  |     protected function setFinished(\DateTime $finished) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  |         $this->finished = $finished; | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 199 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 200 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 201 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 202 |  |  |      * @param string $status | 
            
                                                                        
                            
            
                                    
            
            
                | 203 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  |     protected function setStatus(string $status) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  |         $this->status = $status; | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 207 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 208 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 209 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 210 |  |  |      * @param string $resolution | 
            
                                                                        
                            
            
                                    
            
            
                | 211 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 |  |  |     protected function setResolution(string $resolution) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 |  |  |         $this->resolution = $resolution; | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 215 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 216 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 217 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 218 |  |  |      * @param \DateTime $result | 
            
                                                                        
                            
            
                                    
            
            
                | 219 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 220 |  |  |     protected function setResult(\DateTime $result) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 221 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 222 |  |  |         $this->result = $result; | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 223 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 224 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 225 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 226 |  |  |      * @param string $resolution | 
            
                                                                        
                            
            
                                    
            
            
                | 227 |  |  |      * @param mixed $response | 
            
                                                                        
                            
            
                                    
            
            
                | 228 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 229 |  |  |     protected function resolve($resolution, $response) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 230 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 231 |  |  |         if (!empty($response)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 232 |  |  |             $this->setResult(print_r($response, true)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 233 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 234 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 235 |  |  |         $this->setStatus(QueuedTaskInterface::STATUS_DONE); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 236 |  |  |         $this->setResolution($resolution); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 237 |  |  |         $this->setFinished(new \DateTime()); | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 238 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 239 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 240 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 241 |  |  |      * {@inheritdoc} | 
            
                                                                        
                            
            
                                    
            
            
                | 242 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 243 |  |  |     public function start() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 244 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 245 |  |  |         $this->setStatus(QueuedTaskInterface::STATUS_RUNNING); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 246 |  |  |         $this->setStarted(new \DateTime()); | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 247 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 248 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 249 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 250 |  |  |      * {@inheritdoc} | 
            
                                                                        
                            
            
                                    
            
            
                | 251 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 252 |  |  |     public function success($response) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 253 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 254 |  |  |         $this->resolve(QueuedTaskInterface::RESOLUTION_SUCCESS, $response); | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 255 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 256 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 257 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 258 |  |  |      * {@inheritdoc} | 
            
                                                                        
                            
            
                                    
            
            
                | 259 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 260 |  |  |     public function failure($response) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 261 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 262 |  |  |         $this->resolve(QueuedTaskInterface::RESOLUTION_FAILURE, $response); | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 263 |  |  |     } | 
            
                                                        
            
                                    
            
            
                | 264 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 265 |  |  |  | 
            
                        
If you return a value from a function or method, it should be a sub-type of the type that is given by the parent type f.e. an interface, or abstract method. This is more formally defined by the Lizkov substitution principle, and guarantees that classes that depend on the parent type can use any instance of a child type interchangably. This principle also belongs to the SOLID principles for object oriented design.
Let’s take a look at an example:
Our function
my_functionexpects aPostobject, and outputs the author of the post. The base classPostreturns a simple string and outputting a simple string will work just fine. However, the child classBlogPostwhich is a sub-type ofPostinstead decided to return anobject, and is therefore violating the SOLID principles. If aBlogPostwere passed tomy_function, PHP would not complain, but ultimately fail when executing thestrtouppercall in its body.