Moved cache drivers outside core to extensions (plugins)

plugins/cache-redis/Predis/Configuration/Options.php

@@ -0,0 +1,122 @@
+<?php
+
+/*
+ * This file is part of the Predis package.
+ *
+ * (c) Daniele Alessandri <suppakilla@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Predis\Configuration;
+
+/**
+ * Manages Predis options with filtering, conversion and lazy initialization of
+ * values using a mini-DI container approach.
+ *
+ * {@inheritdoc}
+ *
+ * @author Daniele Alessandri <suppakilla@gmail.com>
+ */
+class Options implements OptionsInterface
+{
+    protected $input;
+    protected $options;
+    protected $handlers;
+
+    /**
+     * @param array $options Array of options with their values
+     */
+    public function __construct(array $options = array())
+    {
+        $this->input = $options;
+        $this->options = array();
+        $this->handlers = $this->getHandlers();
+    }
+
+    /**
+     * Ensures that the default options are initialized.
+     *
+     * @return array
+     */
+    protected function getHandlers()
+    {
+        return array(
+            'cluster' => 'Predis\Configuration\ClusterOption',
+            'connections' => 'Predis\Configuration\ConnectionFactoryOption',
+            'exceptions' => 'Predis\Configuration\ExceptionsOption',
+            'prefix' => 'Predis\Configuration\PrefixOption',
+            'profile' => 'Predis\Configuration\ProfileOption',
+            'replication' => 'Predis\Configuration\ReplicationOption',
+        );
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getDefault($option)
+    {
+        if (isset($this->handlers[$option])) {
+            $handler = $this->handlers[$option];
+            $handler = new $handler();
+
+            return $handler->getDefault($this);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function defined($option)
+    {
+        return (
+            array_key_exists($option, $this->options) ||
+            array_key_exists($option, $this->input)
+        );
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function __isset($option)
+    {
+        return (
+            array_key_exists($option, $this->options) ||
+            array_key_exists($option, $this->input)
+        ) && $this->__get($option) !== null;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function __get($option)
+    {
+        if (isset($this->options[$option]) || array_key_exists($option, $this->options)) {
+            return $this->options[$option];
+        }
+
+        if (isset($this->input[$option]) || array_key_exists($option, $this->input)) {
+            $value = $this->input[$option];
+            unset($this->input[$option]);
+
+            if (is_object($value) && method_exists($value, '__invoke')) {
+                $value = $value($this, $option);
+            }
+
+            if (isset($this->handlers[$option])) {
+                $handler = $this->handlers[$option];
+                $handler = new $handler();
+                $value = $handler->filter($this, $value);
+            }
+
+            return $this->options[$option] = $value;
+        }
+
+        if (isset($this->handlers[$option])) {
+            return $this->options[$option] = $this->getDefault($option);
+        }
+
+        return;
+    }
+}