new appraoch

pancake/system/vendor/php-http/discovery/src/Psr17FactoryDiscovery.php

@@ -0,0 +1,136 @@
+<?php
+
+namespace Http\Discovery;
+
+use Http\Discovery\Exception\DiscoveryFailedException;
+use Psr\Http\Message\RequestFactoryInterface;
+use Psr\Http\Message\ResponseFactoryInterface;
+use Psr\Http\Message\ServerRequestFactoryInterface;
+use Psr\Http\Message\StreamFactoryInterface;
+use Psr\Http\Message\UploadedFileFactoryInterface;
+use Psr\Http\Message\UriFactoryInterface;
+
+/**
+ * Finds PSR-17 factories.
+ *
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ */
+final class Psr17FactoryDiscovery extends ClassDiscovery
+{
+    private static function createException($type, Exception $e)
+    {
+        return new \Http\Discovery\Exception\NotFoundException(
+            'No PSR-17 '.$type.' found. Install a package from this list: https://packagist.org/providers/psr/http-factory-implementation',
+            0,
+            $e
+        );
+    }
+
+    /**
+     * @return RequestFactoryInterface
+     *
+     * @throws Exception\NotFoundException
+     */
+    public static function findRequestFactory()
+    {
+        try {
+            $messageFactory = static::findOneByType(RequestFactoryInterface::class);
+        } catch (DiscoveryFailedException $e) {
+            throw self::createException('request factory', $e);
+        }
+
+        return static::instantiateClass($messageFactory);
+    }
+
+    /**
+     * @return ResponseFactoryInterface
+     *
+     * @throws Exception\NotFoundException
+     */
+    public static function findResponseFactory()
+    {
+        try {
+            $messageFactory = static::findOneByType(ResponseFactoryInterface::class);
+        } catch (DiscoveryFailedException $e) {
+            throw self::createException('response factory', $e);
+        }
+
+        return static::instantiateClass($messageFactory);
+    }
+
+    /**
+     * @return ServerRequestFactoryInterface
+     *
+     * @throws Exception\NotFoundException
+     */
+    public static function findServerRequestFactory()
+    {
+        try {
+            $messageFactory = static::findOneByType(ServerRequestFactoryInterface::class);
+        } catch (DiscoveryFailedException $e) {
+            throw self::createException('server request factory', $e);
+        }
+
+        return static::instantiateClass($messageFactory);
+    }
+
+    /**
+     * @return StreamFactoryInterface
+     *
+     * @throws Exception\NotFoundException
+     */
+    public static function findStreamFactory()
+    {
+        try {
+            $messageFactory = static::findOneByType(StreamFactoryInterface::class);
+        } catch (DiscoveryFailedException $e) {
+            throw self::createException('stream factory', $e);
+        }
+
+        return static::instantiateClass($messageFactory);
+    }
+
+    /**
+     * @return UploadedFileFactoryInterface
+     *
+     * @throws Exception\NotFoundException
+     */
+    public static function findUploadedFileFactory()
+    {
+        try {
+            $messageFactory = static::findOneByType(UploadedFileFactoryInterface::class);
+        } catch (DiscoveryFailedException $e) {
+            throw self::createException('uploaded file factory', $e);
+        }
+
+        return static::instantiateClass($messageFactory);
+    }
+
+    /**
+     * @return UriFactoryInterface
+     *
+     * @throws Exception\NotFoundException
+     */
+    public static function findUriFactory()
+    {
+        try {
+            $messageFactory = static::findOneByType(UriFactoryInterface::class);
+        } catch (DiscoveryFailedException $e) {
+            throw self::createException('url factory', $e);
+        }
+
+        return static::instantiateClass($messageFactory);
+    }
+
+    /**
+     * @return UriFactoryInterface
+     *
+     * @throws Exception\NotFoundException
+     *
+     * @deprecated This will be removed in 2.0. Consider using the findUriFactory() method.
+     */
+    public static function findUrlFactory()
+    {
+        return static::findUriFactory();
+    }
+}