]> git.mxchange.org Git - friendica.git/blobdiff - src/Core/Config.php
Refactor namespaces
[friendica.git] / src / Core / Config.php
index 3b08dee6b659aee9c71879d2e405bf1816cba329..755dc6ebbcf50bfcc82e9f31a7877ea5d89ea8e3 100644 (file)
@@ -8,26 +8,36 @@
  */
 namespace Friendica\Core;
 
-use Friendica\Database\DBM;
-use dba;
-
-require_once 'include/dba.php';
+use Friendica\App;
+use Friendica\BaseObject;
 
 /**
- * @brief Arbitrary sytem configuration storage
+ * @brief Arbitrary system configuration storage
  *
  * Note:
  * If we ever would decide to return exactly the variable type as entered,
  * we will have fun with the additional features. :-)
- *
- * The config class always returns strings but in the default features
- * we use a "false" to determine if the config value isn't set.
- *
  */
-class Config
+class Config extends BaseObject
 {
-       private static $cache;
-       private static $in_db;
+       /**
+        * @var \Friendica\Core\Config\IConfigAdapter
+        */
+       private static $adapter = null;
+
+       public static function init()
+       {
+               // Database isn't ready or populated yet
+               if (!self::getApp()->getMode()->has(App\Mode::DBCONFIGAVAILABLE)) {
+                       return;
+               }
+
+               if (self::getApp()->getConfigValue('system', 'config_adapter') == 'preload') {
+                       self::$adapter = new Config\PreloadConfigAdapter();
+               } else {
+                       self::$adapter = new Config\JITConfigAdapter();
+               }
+       }
 
        /**
         * @brief Loads all configuration values of family into a cached storage.
@@ -38,29 +48,20 @@ class Config
         * @param string $family The category of the configuration value
         *
         * @return void
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
         */
        public static function load($family = "config")
        {
-               // We don't preload "system" anymore.
-               // This reduces the number of database reads a lot.
-               if ($family === 'system') {
+               // Database isn't ready or populated yet
+               if (!self::getApp()->getMode()->has(App\Mode::DBCONFIGAVAILABLE)) {
                        return;
                }
 
-               $a = get_app();
-
-               $r = dba::select('config', array('v', 'k'), array('cat' => $family));
-               while ($rr = dba::fetch($r)) {
-                       $k = $rr['k'];
-                       if ($family === 'config') {
-                               $a->config[$k] = $rr['v'];
-                       } else {
-                               $a->config[$family][$k] = $rr['v'];
-                               self::$cache[$family][$k] = $rr['v'];
-                               self::$in_db[$family][$k] = true;
-                       }
+               if (empty(self::$adapter)) {
+                       self::init();
                }
-               dba::close($r);
+
+               self::$adapter->load($family);
        }
 
        /**
@@ -81,43 +82,20 @@ class Config
         * @param boolean $refresh       optional, If true the config is loaded from the db and not from the cache (default: false)
         *
         * @return mixed Stored value or null if it does not exist
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
         */
        public static function get($family, $key, $default_value = null, $refresh = false)
        {
-               $a = get_app();
-
-               if (!$refresh) {
-                       // Do we have the cached value? Then return it
-                       if (isset(self::$cache[$family][$key])) {
-                               if (self::$cache[$family][$key] === '!<unset>!') {
-                                       return $default_value;
-                               } else {
-                                       return self::$cache[$family][$key];
-                               }
-                       }
+               // Database isn't ready or populated yet, fallback to file config
+               if (!self::getApp()->getMode()->has(App\Mode::DBCONFIGAVAILABLE)) {
+                       return self::getApp()->getConfigValue($family, $key, $default_value);
                }
 
-               $ret = dba::selectFirst('config', ['v'], ['cat' => $family, 'k' => $key]);
-               if (DBM::is_result($ret)) {
-                       // manage array value
-                       $val = (preg_match("|^a:[0-9]+:{.*}$|s", $ret['v']) ? unserialize($ret['v']) : $ret['v']);
-
-                       // Assign the value from the database to the cache
-                       self::$cache[$family][$key] = $val;
-                       self::$in_db[$family][$key] = true;
-                       return $val;
-               } elseif (isset($a->config[$family][$key])) {
-                       // Assign the value (mostly) from the .htconfig.php to the cache
-                       self::$cache[$family][$key] = $a->config[$family][$key];
-                       self::$in_db[$family][$key] = false;
-
-                       return $a->config[$family][$key];
+               if (empty(self::$adapter)) {
+                       self::init();
                }
 
-               self::$cache[$family][$key] = '!<unset>!';
-               self::$in_db[$family][$key] = false;
-
-               return $default_value;
+               return self::$adapter->get($family, $key, $default_value, $refresh);
        }
 
        /**
@@ -132,42 +110,21 @@ class Config
         * @param string $key    The configuration key to set
         * @param mixed  $value  The value to store
         *
-        * @return mixed Stored $value or false if the database update failed
+        * @return bool Operation success
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
         */
        public static function set($family, $key, $value)
        {
-               $a = get_app();
-
-               // We store our setting values in a string variable.
-               // So we have to do the conversion here so that the compare below works.
-               // The exception are array values.
-               $dbvalue = (!is_array($value) ? (string)$value : $value);
-
-               $stored = self::get($family, $key, null, true);
-
-               if (($stored === $dbvalue) && self::$in_db[$family][$key]) {
-                       return true;
+               // Database isn't ready or populated yet
+               if (!self::getApp()->getMode()->has(App\Mode::DBCONFIGAVAILABLE)) {
+                       return false;
                }
 
-               if ($family === 'config') {
-                       $a->config[$key] = $dbvalue;
-               } elseif ($family != 'system') {
-                       $a->config[$family][$key] = $dbvalue;
+               if (empty(self::$adapter)) {
+                       self::init();
                }
 
-               // Assign the just added value to the cache
-               self::$cache[$family][$key] = $dbvalue;
-
-               // manage array value
-               $dbvalue = (is_array($value) ? serialize($value) : $dbvalue);
-
-               $ret = dba::update('config', array('v' => $dbvalue), array('cat' => $family, 'k' => $key), true);
-
-               if ($ret) {
-                       self::$in_db[$family][$key] = true;
-                       return $value;
-               }
-               return $ret;
+               return self::$adapter->set($family, $key, $value);
        }
 
        /**
@@ -180,16 +137,19 @@ class Config
         * @param string $key    The configuration key to delete
         *
         * @return mixed
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
         */
        public static function delete($family, $key)
        {
-               if (isset(self::$cache[$family][$key])) {
-                       unset(self::$cache[$family][$key]);
-                       unset(self::$in_db[$family][$key]);
+               // Database isn't ready or populated yet
+               if (!self::getApp()->getMode()->has(App\Mode::DBCONFIGAVAILABLE)) {
+                       return false;
                }
 
-               $ret = dba::delete('config', array('cat' => $family, 'k' => $key));
+               if (empty(self::$adapter)) {
+                       self::init();
+               }
 
-               return $ret;
+               return self::$adapter->delete($family, $key);
        }
 }