new appraoch

pancake/system/vendor/php-http/discovery/src/MessageFactoryDiscovery.php

@@ -0,0 +1,34 @@
+<?php
+
+namespace Http\Discovery;
+
+use Http\Discovery\Exception\DiscoveryFailedException;
+use Http\Message\MessageFactory;
+
+/**
+ * Finds a Message Factory.
+ *
+ * @author Márk Sági-Kazár <mark.sagikazar@gmail.com>
+ *
+ * @deprecated This will be removed in 2.0. Consider using Psr17FactoryDiscovery.
+ */
+final class MessageFactoryDiscovery extends ClassDiscovery
+{
+    /**
+     * Finds a Message Factory.
+     *
+     * @return MessageFactory
+     *
+     * @throws Exception\NotFoundException
+     */
+    public static function find()
+    {
+        try {
+            $messageFactory = static::findOneByType(MessageFactory::class);
+        } catch (DiscoveryFailedException $e) {
+            throw new NotFoundException('No php-http message factories found. Note that the php-http message factories are deprecated in favor of the PSR-17 message factories. To use the legacy Guzzle, Diactoros or Slim Framework factories of php-http, install php-http/message and php-http/message-factory and the chosen message implementation.', 0, $e);
+        }
+
+        return static::instantiateClass($messageFactory);
+    }
+}