Total Complexity | 40 |
Total Lines | 286 |
Duplicated Lines | 0 % |
Changes | 1 | ||
Bugs | 0 | Features | 0 |
Complex classes like RedisHandler often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use RedisHandler, and based on these observations, apply Extract Interface, too.
1 | <?php |
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22 | class RedisHandler extends BaseHandler |
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23 | { |
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24 | /** |
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25 | * Wrapper Redis. |
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26 | * |
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27 | * @var Redis |
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28 | */ |
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29 | protected $_Redis; |
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30 | |||
31 | /** |
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32 | * La configuration par défaut utilisée sauf si elle est remplacée par la configuration d'exécution |
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33 | * |
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34 | * - Numéro de base de données `database` à utiliser pour la connexion. |
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35 | * - `duration` Spécifiez combien de temps durent les éléments de cette configuration de cache. |
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36 | * - `groups` Liste des groupes ou 'tags' associés à chaque clé stockée dans cette configuration. |
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37 | * pratique pour supprimer un groupe complet du cache. |
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38 | * - `password` Mot de passe du serveur Redis. |
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39 | * - `persistent` Connectez-vous au serveur Redis avec une connexion persistante |
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40 | * - `port` numéro de port vers le serveur Redis. |
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41 | * - `prefix` Préfixe ajouté à toutes les entrées. Bon pour quand vous avez besoin de partager un keyspace |
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42 | * avec une autre configuration de cache ou une autre application. |
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43 | * - URL ou IP `server` vers l'hôte du serveur Redis. |
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44 | * - Délai d'expiration de `timeout` en secondes (flottant). |
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45 | * - `unix_socket` Chemin vers le fichier socket unix (par défaut : false) |
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46 | */ |
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47 | protected array $_defaultConfig = [ |
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48 | 'database' => 0, |
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49 | 'duration' => 3600, |
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50 | 'groups' => [], |
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51 | 'password' => false, |
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52 | 'persistent' => true, |
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53 | 'port' => 6379, |
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54 | 'prefix' => 'blitz_', |
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55 | 'host' => null, |
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56 | 'server' => '127.0.0.1', |
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57 | 'timeout' => 0, |
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58 | 'unix_socket' => false, |
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59 | ]; |
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60 | |||
61 | /** |
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62 | * {@inheritDoc} |
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63 | */ |
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64 | public function init(array $config = []): bool |
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65 | { |
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66 | if (! extension_loaded('redis')) { |
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67 | throw new RuntimeException('L\'extension `redis` doit être activée pour utiliser RedisHandler.'); |
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68 | } |
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69 | |||
70 | if (! empty($config['host'])) { |
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71 | $config['server'] = $config['host']; |
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72 | } |
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73 | |||
74 | parent::init($config); |
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75 | |||
76 | return $this->_connect(); |
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77 | } |
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78 | |||
79 | /** |
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80 | * Connection au serveur Redis |
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81 | * |
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82 | * @return bool Vrai si le serveur Redis était connecté |
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83 | */ |
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84 | protected function _connect(): bool |
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85 | { |
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86 | try { |
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87 | $this->_Redis = new Redis(); |
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88 | if (! empty($this->_config['unix_socket'])) { |
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89 | $return = $this->_Redis->connect($this->_config['unix_socket']); |
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90 | } elseif (empty($this->_config['persistent'])) { |
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91 | $return = $this->_Redis->connect( |
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92 | $this->_config['server'], |
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93 | (int) $this->_config['port'], |
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94 | (int) $this->_config['timeout'] |
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95 | ); |
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96 | } else { |
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97 | $persistentId = $this->_config['port'] . $this->_config['timeout'] . $this->_config['database']; |
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98 | $return = $this->_Redis->pconnect( |
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99 | $this->_config['server'], |
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100 | (int) $this->_config['port'], |
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101 | (int) $this->_config['timeout'], |
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102 | $persistentId |
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103 | ); |
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104 | } |
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105 | } catch (RedisException $e) { |
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106 | if (function_exists('logger')) { |
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107 | $logger = logger(); |
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108 | if (is_object($logger) && method_exists($logger, 'error')) { |
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109 | $logger->error('RedisEngine n\'a pas pu se connecter. Erreur: ' . $e->getMessage()); |
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110 | } |
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111 | } |
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112 | |||
113 | return false; |
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114 | } |
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115 | if ($return && $this->_config['password']) { |
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116 | $return = $this->_Redis->auth($this->_config['password']); |
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117 | } |
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118 | if ($return) { |
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119 | $return = $this->_Redis->select((int) $this->_config['database']); |
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120 | } |
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121 | |||
122 | return $return; |
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123 | } |
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124 | |||
125 | /** |
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126 | * {@inheritDoc} |
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127 | */ |
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128 | public function set(string $key, mixed $value, null|DateInterval|int $ttl = null): bool |
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129 | { |
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130 | $key = $this->_key($key); |
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131 | $value = $this->serialize($value); |
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132 | |||
133 | $duration = $this->duration($ttl); |
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134 | if ($duration === 0) { |
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135 | return $this->_Redis->set($key, $value); |
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136 | } |
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137 | |||
138 | return $this->_Redis->setEx($key, $duration, $value); |
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139 | } |
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140 | |||
141 | /** |
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142 | * {@inheritDoc} |
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143 | */ |
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144 | public function get(string $key, mixed $default = null): mixed |
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145 | { |
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146 | $value = $this->_Redis->get($this->_key($key)); |
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147 | if ($value === false) { |
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148 | return $default; |
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149 | } |
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150 | |||
151 | return $this->unserialize($value); |
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152 | } |
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153 | |||
154 | /** |
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155 | * {@inheritDoc} |
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156 | */ |
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157 | public function increment(string $key, int $offset = 1) |
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158 | { |
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159 | $duration = $this->_config['duration']; |
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160 | $key = $this->_key($key); |
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161 | |||
162 | $value = $this->_Redis->incrBy($key, $offset); |
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163 | if ($duration > 0) { |
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164 | $this->_Redis->expire($key, $duration); |
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165 | } |
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166 | |||
167 | return $value; |
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168 | } |
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169 | |||
170 | /** |
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171 | * {@inheritDoc} |
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172 | */ |
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173 | public function decrement(string $key, int $offset = 1) |
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174 | { |
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175 | $duration = $this->_config['duration']; |
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176 | $key = $this->_key($key); |
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177 | |||
178 | $value = $this->_Redis->decrBy($key, $offset); |
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179 | if ($duration > 0) { |
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180 | $this->_Redis->expire($key, $duration); |
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181 | } |
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182 | |||
183 | return $value; |
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184 | } |
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185 | |||
186 | /** |
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187 | * {@inheritDoc} |
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188 | */ |
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189 | public function delete(string $key): bool |
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190 | { |
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191 | $key = $this->_key($key); |
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192 | |||
193 | return $this->_Redis->del($key) > 0; |
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194 | } |
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195 | |||
196 | /** |
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197 | * {@inheritDoc} |
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198 | */ |
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199 | public function clear(): bool |
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221 | } |
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222 | |||
223 | /** |
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224 | * {@inheritDoc} |
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225 | * |
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226 | * @see https://github.com/phpredis/phpredis#set |
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227 | */ |
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228 | public function add(string $key, mixed $value): bool |
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235 | } |
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236 | |||
237 | /** |
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238 | * {@inheritDoc} |
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239 | */ |
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240 | public function info() |
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241 | { |
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242 | return $this->_Redis->info(); |
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243 | } |
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244 | |||
245 | /** |
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246 | * {@inheritDoc} |
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247 | */ |
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248 | public function groups(): array |
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249 | { |
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250 | $result = []; |
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251 | |||
252 | foreach ($this->_config['groups'] as $group) { |
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253 | $value = $this->_Redis->get($this->_config['prefix'] . $group); |
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254 | if (! $value) { |
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255 | $value = $this->serialize(1); |
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256 | $this->_Redis->set($this->_config['prefix'] . $group, $value); |
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257 | } |
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258 | $result[] = $group . $value; |
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259 | } |
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260 | |||
261 | return $result; |
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262 | } |
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263 | |||
264 | /** |
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265 | * {@inheritDoc} |
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266 | */ |
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267 | public function clearGroup(string $group): bool |
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268 | { |
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269 | return (bool) $this->_Redis->incr($this->_config['prefix'] . $group); |
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270 | } |
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271 | |||
272 | /** |
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273 | * Sérialisez la valeur pour l'enregistrer dans Redis. |
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274 | * |
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275 | * Ceci est nécessaire au lieu d'utiliser la fonction de sérialisation intégrée de Redis |
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276 | * car cela crée des problèmes d'incrémentation/décrémentation de la valeur entière initialement définie. |
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277 | * |
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278 | * @see https://github.com/phpredis/phpredis/issues/81 |
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279 | */ |
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280 | protected function serialize(mixed $value): string |
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281 | { |
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282 | if (is_int($value)) { |
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283 | return (string) $value; |
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284 | } |
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285 | |||
286 | return serialize($value); |
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287 | } |
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288 | |||
289 | /** |
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290 | * Désérialiser la valeur de chaîne extraite de Redis. |
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291 | */ |
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292 | protected function unserialize(string $value): mixed |
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299 | } |
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300 | |||
301 | /** |
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302 | * Se déconnecte du serveur redis |
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303 | */ |
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304 | public function __destruct() |
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308 | } |
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309 | } |
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310 | } |
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311 |