src/Core/Cache/ArrayCache.php

   1 <?php
   2
   3 namespace Friendica\Core\Cache;
   4
   5 /**
   6  * Implementation of the IMemoryCache mainly for testing purpose
   7  *
   8  * Class ArrayCache
   9  *
  10  * @package Friendica\Core\Cache
  11  */
  12 class ArrayCache extends Cache implements IMemoryCache
  13 {
  14         use TraitCompareDelete;
  15
  16         /** @var array Array with the cached data */
  17         protected $cachedData = array();
  18
  19         /**
  20          * (@inheritdoc)
  21          */
  22         public function getAllKeys($prefix = null)
  23         {
  24                 return $this->filterArrayKeysByPrefix(array_keys($this->cachedData), $prefix);
  25         }
  26
  27         /**
  28          * (@inheritdoc)
  29          */
  30         public function get($key)
  31         {
  32                 if (isset($this->cachedData[$key])) {
  33                         return $this->cachedData[$key];
  34                 }
  35                 return null;
  36         }
  37
  38         /**
  39          * (@inheritdoc)
  40          */
  41         public function set($key, $value, $ttl = Cache::FIVE_MINUTES)
  42         {
  43                 $this->cachedData[$key] = $value;
  44                 return true;
  45         }
  46
  47         /**
  48          * (@inheritdoc)
  49          */
  50         public function delete($key)
  51         {
  52                 unset($this->cachedData[$key]);
  53                 return true;
  54         }
  55
  56         /**
  57          * (@inheritdoc)
  58          */
  59         public function clear($outdated = true)
  60         {
  61                 // Array doesn't support TTL so just don't delete something
  62                 if ($outdated) {
  63                         return true;
  64                 }
  65
  66                 $this->cachedData = [];
  67                 return true;
  68         }
  69
  70         /**
  71          * (@inheritdoc)
  72          */
  73         public function add($key, $value, $ttl = Cache::FIVE_MINUTES)
  74         {
  75                 if (isset($this->cachedData[$key])) {
  76                         return false;
  77                 } else {
  78                         return $this->set($key, $value, $ttl);
  79                 }
  80         }
  81
  82         /**
  83          * (@inheritdoc)
  84          */
  85         public function compareSet($key, $oldValue, $newValue, $ttl = Cache::FIVE_MINUTES)
  86         {
  87                 if ($this->get($key) === $oldValue) {
  88                         return $this->set($key, $newValue);
  89                 } else {
  90                         return false;
  91                 }
  92         }
  93
  94         /**
  95          * {@inheritDoc}
  96          */
  97         public function getName()
  98         {
  99                 return self::TYPE_ARRAY;
 100         }
 101 }