Moved cache drivers outside core to extensions (plugins)

plugins/cache-redis/Predis/Protocol/Text/Handler/MultiBulkResponse.php

@@ -0,0 +1,68 @@
+<?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\Protocol\Text\Handler;
+
+use Predis\CommunicationException;
+use Predis\Connection\CompositeConnectionInterface;
+use Predis\Protocol\ProtocolException;
+
+/**
+ * Handler for the multibulk response type in the standard Redis wire protocol.
+ * It returns multibulk responses as PHP arrays.
+ *
+ * @link http://redis.io/topics/protocol
+ *
+ * @author Daniele Alessandri <suppakilla@gmail.com>
+ */
+class MultiBulkResponse implements ResponseHandlerInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function handle(CompositeConnectionInterface $connection, $payload)
+    {
+        $length = (int) $payload;
+
+        if ("$length" !== $payload) {
+            CommunicationException::handle(new ProtocolException(
+                $connection, "Cannot parse '$payload' as a valid length of a multi-bulk response."
+            ));
+        }
+
+        if ($length === -1) {
+            return;
+        }
+
+        $list = array();
+
+        if ($length > 0) {
+            $handlersCache = array();
+            $reader = $connection->getProtocol()->getResponseReader();
+
+            for ($i = 0; $i < $length; ++$i) {
+                $header = $connection->readLine();
+                $prefix = $header[0];
+
+                if (isset($handlersCache[$prefix])) {
+                    $handler = $handlersCache[$prefix];
+                } else {
+                    $handler = $reader->getHandler($prefix);
+                    $handlersCache[$prefix] = $handler;
+                }
+
+                $list[$i] = $handler->handle($connection, substr($header, 1));
+            }
+        }
+
+        return $list;
+    }
+}