Refactor CacheLayer implementation by removing abstract class and its concrete implementations for Memcached and Redis, streamlining cache management.

src/Socialbox/Abstracts/CacheLayer.php

@@ -1,90 +0,0 @@
-<?php
-
-    namespace Socialbox\Abstracts;
-
-    use RuntimeException;
-    use Socialbox\Classes\CacheLayer\MemcachedCacheLayer;
-    use Socialbox\Classes\CacheLayer\RedisCacheLayer;
-    use Socialbox\Classes\Configuration;
-
-    abstract class CacheLayer
-    {
-        private static ?CacheLayer $instance = null;
-
-        /**
-         * Stores a value in the cache with an associated key and an optional time-to-live (TTL).
-         *
-         * @param string $key The key under which the value is stored.
-         * @param mixed $value The value to be stored.
-         * @param int $ttl Optional. The time-to-live for the cache entry in seconds. A value of 0 indicates no expiration.
-         * @return bool Returns true if the value was successfully set, false otherwise.
-         */
-        public abstract function set(string $key, mixed $value, int $ttl=0): bool;
-
-        /**
-         * Retrieves a value from the cache with the specified key.
-         *
-         * @param string $key The key of the value to retrieve.
-         * @return mixed The value associated with the key, or null if the key does not exist.
-         */
-        public abstract function get(string $key): mixed;
-
-        /**
-         * Deletes a value from the cache with the specified key.
-         *
-         * @param string $key The key of the value to delete.
-         * @return bool Returns true if the value was successfully deleted, false otherwise.
-         */
-        public abstract function delete(string $key): bool;
-
-        /**
-         * Checks if a value exists in the cache with the specified key.
-         *
-         * @param string $key The key to check.
-         * @return bool Returns true if the key exists, false otherwise.
-         */
-        public abstract function exists(string $key): bool;
-
-        /**
-         * Counts the number of items that start with the given prefix.
-         *
-         * @param string $prefix The prefix to search for.
-         * @return int The count of items starting with the provided prefix.
-         */
-        public abstract function getPrefixCount(string $prefix): int;
-
-        /**
-         * Clears all values from the cache.
-         *
-         * @return bool Returns true if the cache was successfully cleared, false otherwise.
-         */
-        public abstract function clear(): bool;
-
-        /**
-         * Retrieves the singleton instance of the cache layer.
-         *
-         * @return CacheLayer The singleton instance of the cache layer.
-         */
-        public static function getInstance(): CacheLayer
-        {
-            if (self::$instance === null)
-            {
-                $engine = Configuration::getCacheConfiguration()->getEngine();
-
-                if ($engine === 'redis')
-                {
-                    self::$instance = new RedisCacheLayer();
-                }
-                else if ($engine === 'memcached')
-                {
-                    self::$instance = new MemcachedCacheLayer();
-                }
-                else
-                {
-                    throw new RuntimeException('Invalid cache engine specified in the configuration, must be either "redis" or "memcached".');
-                }
-            }
-
-            return self::$instance;
-        }
-    }

src/Socialbox/Classes/CacheLayer.php

@@ -1,18 +1,18 @@
 <?php
 
-namespace Socialbox\Classes;
+    namespace Socialbox\Classes;
     
-class CacheLayer
+    class CacheLayer
-{
-    private static CacheLayer $instance;
-
-    public static function getInstance(): CacheLayer
     {
-        if (!isset(self::$instance))
+        private static CacheLayer $instance;
-        {
-            self::$instance = new CacheLayer();
-        }
     
-        return self::$instance;
+        public static function getInstance(): CacheLayer
+        {
+            if (!isset(self::$instance))
+            {
+                self::$instance = new CacheLayer();
+            }
+    
+            return self::$instance;
+        }
     }
-}

src/Socialbox/Classes/CacheLayer/MemcachedCacheLayer.php

@@ -1,113 +0,0 @@
-<?php
-
-namespace Socialbox\Classes\CacheLayer;
-
-use Memcached;
-use RuntimeException;
-use Socialbox\Abstracts\CacheLayer;
-use Socialbox\Classes\Configuration;
-
-class MemcachedCacheLayer extends CacheLayer
-{
-    private Memcached $memcached;
-
-    /**
-     * Memcached cache layer constructor.
-     */
-    public function __construct()
-    {
-        if (!extension_loaded('memcached'))
-        {
-            throw new RuntimeException('The Memcached extension is not loaded in your PHP environment.');
-        }
-
-        $this->memcached = new Memcached();
-        $this->memcached->addServer(Configuration::getCacheConfiguration()->getHost(), Configuration::getCacheConfiguration()->getPort());
-        if(Configuration::getCacheConfiguration()->getUsername() !== null || Configuration::getCacheConfiguration()->getPassword() !== null)
-        {
-            $this->memcached->setSaslAuthData(Configuration::getCacheConfiguration()->getUsername(), Configuration::getCacheConfiguration()->getPassword());
-        }
-    }
-
-    /**
-     * @inheritDoc
-     */
-    public function set(string $key, mixed $value, int $ttl = 0): bool
-    {
-        if (!$this->memcached->set($key, $value, $ttl))
-        {
-            throw new RuntimeException('Failed to set the value in the Memcached cache.');
-        }
-
-        return true;
-    }
-
-    /**
-     * @inheritDoc
-     */
-    public function get(string $key): mixed
-    {
-        $result = $this->memcached->get($key);
-
-        if ($this->memcached->getResultCode() !== Memcached::RES_SUCCESS)
-        {
-            throw new RuntimeException('Failed to get the value from the Memcached cache.');
-        }
-
-        return $result;
-    }
-
-    /**
-     * @inheritDoc
-     */
-    public function delete(string $key): bool
-    {
-        if (!$this->memcached->delete($key) && $this->memcached->getResultCode() !== Memcached::RES_NOTFOUND)
-        {
-            throw new RuntimeException('Failed to delete the value from the Memcached cache.');
-        }
-
-        return true;
-    }
-
-    /**
-     * @inheritDoc
-     */
-    public function exists(string $key): bool
-    {
-        $this->memcached->get($key);
-        return $this->memcached->getResultCode() === Memcached::RES_SUCCESS;
-    }
-
-    /**
-     * @inheritDoc
-     */
-    public function getPrefixCount(string $prefix): int
-    {
-        $stats = $this->memcached->getStats();
-        $count = 0;
-
-        foreach ($stats as $server => $data)
-        {
-            if (str_starts_with($server, $prefix))
-            {
-                $count += $data['curr_items'];
-            }
-        }
-
-        return $count;
-    }
-
-    /**
-     * @inheritDoc
-     */
-    public function clear(): bool
-    {
-        if (!$this->memcached->flush())
-        {
-            throw new RuntimeException('Failed to clear the Memcached cache.');
-        }
-
-        return true;
-    }
-}

src/Socialbox/Classes/CacheLayer/RedisCacheLayer.php

@@ -1,135 +0,0 @@
-<?php
-
-namespace Socialbox\Classes\CacheLayer;
-
-use Redis;
-use RedisException;
-use RuntimeException;
-use Socialbox\Abstracts\CacheLayer;
-use Socialbox\Classes\Configuration;
-
-class RedisCacheLayer extends CacheLayer
-{
-    private Redis $redis;
-
-    /**
-     * Redis cache layer constructor.
-     */
-    public function __construct()
-    {
-        if (!extension_loaded('redis'))
-        {
-            throw new RuntimeException('The Redis extension is not loaded in your PHP environment.');
-        }
-
-        $this->redis = new Redis();
-
-        try
-        {
-            $this->redis->connect(Configuration::getCacheConfiguration()->getHost(), Configuration::getCacheConfiguration()->getPort());
-            if (Configuration::getCacheConfiguration()->getPassword() !== null)
-            {
-                $this->redis->auth(Configuration::getCacheConfiguration()->getPassword());
-            }
-
-            if (Configuration::getCacheConfiguration()->getDatabase() !== null)
-            {
-                $this->redis->select(Configuration::getCacheConfiguration()->getDatabase());
-            }
-        }
-        catch (RedisException $e)
-        {
-            throw new RuntimeException('Failed to connect to the Redis server.', 0, $e);
-        }
-    }
-
-    /**
-     * @inheritDoc
-     */
-    public function set(string $key, mixed $value, int $ttl = 0): bool
-    {
-        try
-        {
-            return $this->redis->set($key, $value, $ttl);
-        }
-        catch (RedisException $e)
-        {
-            throw new RuntimeException('Failed to set the value in the Redis cache.', 0, $e);
-        }
-    }
-
-    /**
-     * @inheritDoc
-     */
-    public function get(string $key): mixed
-    {
-        try
-        {
-            return $this->redis->get($key);
-        }
-        catch (RedisException $e)
-        {
-            throw new RuntimeException('Failed to get the value from the Redis cache.', 0, $e);
-        }
-    }
-
-    /**
-     * @inheritDoc
-     */
-    public function delete(string $key): bool
-    {
-        try
-        {
-            return $this->redis->del($key) > 0;
-        }
-        catch (RedisException $e)
-        {
-            throw new RuntimeException('Failed to delete the value from the Redis cache.', 0, $e);
-        }
-    }
-
-    /**
-     * @inheritDoc
-     */
-    public function exists(string $key): bool
-    {
-        try
-        {
-            return $this->redis->exists($key);
-        }
-        catch (RedisException $e)
-        {
-            throw new RuntimeException('Failed to check if the key exists in the Redis cache.', 0, $e);
-        }
-    }
-
-    /**
-     * @inheritDoc
-     */
-    public function getPrefixCount(string $prefix): int
-    {
-        try
-        {
-            return count($this->redis->keys($prefix . '*'));
-        }
-        catch (RedisException $e)
-        {
-            throw new RuntimeException('Failed to get the count of keys with the specified prefix in the Redis cache.', 0, $e);
-        }
-    }
-
-    /**
-     * @inheritDoc
-     */
-    public function clear(): bool
-    {
-        try
-        {
-            return $this->redis->flushAll();
-        }
-        catch (RedisException $e)
-        {
-            throw new RuntimeException('Failed to clear the Redis cache.', 0, $e);
-        }
-    }
-}