Add URI factory (fix #3)

Author: ddeboer

spec/UriFactoryDiscoverySpec.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace spec\Http\Discovery;
+
+use PhpSpec\ObjectBehavior;
+use Prophecy\Argument;
+
+class UriFactoryDiscoverySpec extends ObjectBehavior
+{
+    function it_is_initializable()
+    {
+        $this->shouldHaveType('Http\Discovery\UriFactoryDiscovery');
+    }
+
+    function it_finds_guzzle_then_zend_by_default()
+    {
+        $this->find()->shouldHaveType('Http\Discovery\UriFactory\GuzzleFactory');
+
+        $this->register('guzzle', 'invalid', '');
+
+        if (class_exists('Zend\Diactoros\Request')) {
+            $this->find()->shouldHaveType('Http\Discovery\UriFactory\DiactorosFactory');
+        }
+    }
+}

src/ClassDiscovery.php

@@ -0,0 +1,54 @@
+<?php
+
+namespace Http\Discovery;
+
+/**
+ * Registry that based find results on class existence
+ *
+ * @author David de Boer <[email protected]>
+ */
+abstract class ClassDiscovery
+{
+    protected static $cache;
+    protected static $classes = [];
+
+    /**
+     * Register a factory
+     *
+     * @param string $name
+     * @param string $condition
+     * @param string $class
+     */
+    public static function register($name, $condition, $class = null)
+    {
+        static::$cache = null;
+
+        static::$classes[$name] = [
+            'condition' => $condition,
+            'class' => $class ?: $condition,
+        ];
+    }
+
+    /**
+     * Finds a Factory
+     *
+     * @return object
+     *
+     * @throws NotFoundException
+     */
+    public static function find()
+    {
+        // We have a cache
+        if (isset(static::$cache)) {
+            return static::$cache;
+        }
+
+        foreach (static::$classes as $name => $definition) {
+            if (class_exists($definition['condition'])) {
+                return static::$cache = new $definition['class'];
+            }
+        }
+
+        throw new NotFoundException('Not found');
+    }
+}

src/HttpAdapterDiscovery.php

@@ -11,59 +11,44 @@
 
 namespace Http\Discovery;
 
+use Http\Adapter\HttpAdapter;
+
 /**
  * Finds an HTTP Adapter
  *
  * @author Márk Sági-Kazár <[email protected]>
  */
-class HttpAdapterDiscovery
+class HttpAdapterDiscovery extends ClassDiscovery
 {
     /**
      * @var array
      */
-    protected static $adapters = [
-        'guzzle6' => 'Http\Adapter\Guzzle6HttpAdapter',
-        'guzzle5' => 'Http\Adapter\Guzzle5HttpAdapter',
+    protected static $classes = [
+        'guzzle6' => [
+            'condition' => 'Http\Adapter\Guzzle6HttpAdapter',
+            'class' => 'Http\Adapter\Guzzle6HttpAdapter'
+
+        ],
+        'guzzle5' => [
+            'condition' => 'Http\Adapter\Guzzle5HttpAdapter',
+            'class' => 'Http\Adapter\Guzzle6HttpAdapter'
+        ],
     ];
 
     /**
      * @var string
      */
     protected static $cache;
 
-    /**
-     * Register an HTTP Adapter
-     *
-     * @param string $name
-     * @param string $class
-     */
-    public static function register($name, $class)
-    {
-        static::$cache = null;
-
-        static::$adapters[$name] = $class;
-    }
-
     /**
      * Finds an HTTP Adapter
      *
-     * @return object
+     * @return HttpAdapter
      *
      * @throws NotFoundException
      */
     public static function find()
     {
-        // We have a cache
-        if (isset(static::$cache)) {
-            return static::$cache;
-        }
-
-        foreach (static::$adapters as $name => $class) {
-            if (class_exists($class)) {
-                return static::$cache = new $class;
-            }
-        }
-
-        throw new NotFoundException('No HTTP Adapter found');
+        return parent::find();
     }
 }

src/MessageFactoryDiscovery.php

@@ -11,69 +11,38 @@
 
 namespace Http\Discovery;
 
+use Http\Message\MessageFactory;
+
 /**
  * Finds a Message Factory
  *
  * @author Márk Sági-Kazár <[email protected]>
  */
-class MessageFactoryDiscovery
+class MessageFactoryDiscovery extends ClassDiscovery
 {
     /**
      * @var array
      */
-    protected static $messageFactories = [
+    protected static $factories = [
         'guzzle' => [
-            'class'   => 'GuzzleHttp\Psr7\Request',
-            'factory' => 'Http\Discovery\MessageFactory\GuzzleFactory',
+            'condition'=> 'GuzzleHttp\Psr7\Request',
+            'class' => 'Http\Discovery\MessageFactory\GuzzleFactory',
         ],
         'diactoros' => [
-            'class'   => 'Zend\Diactoros\Request',
-            'factory' => 'Http\Discovery\MessageFactory\DiactorosFactory',
+            'condition' => 'Zend\Diactoros\Request',
+            'class' => 'Http\Discovery\MessageFactory\DiactorosFactory',
         ],
     ];
 
     /**
-     * @var string
-     */
-    protected static $cache;
-
-    /**
-     * Register a Message Factory
+     * Find Message Factory
      *
-     * @param string $name
-     * @param string $class
-     * @param string $factory
-     */
-    public static function register($name, $class, $factory)
-    {
-        static::$cache = null;
-
-        static::$messageFactories[$name] = [
-            'class'   => $class,
-            'factory' => $factory,
-        ];
-    }
-
-    /**
-     * Finds a Message Factory
-     *
-     * @return object
+     * @return MessageFactory
      *
      * @throws NotFoundException
      */
     public static function find()
     {
-        // We have a cache
-        if (isset(static::$cache)) {
-            return static::$cache;
-        }
-
-        foreach (static::$messageFactories as $name => $definition) {
-            if (class_exists($definition['class'])) {
-                return static::$cache = new $definition['factory'];
-            }
-        }
-
-        throw new NotFoundException('No Message Factory found');
+        return parent::find();
     }
 }

src/UriFactory/DiactorosFactory.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace Http\Discovery\UriFactory;
+
+use Zend\Diactoros\Uri;
+use Http\Message\UriFactory;
+
+/**
+ * Creates a zend/diactoros URI object
+ *
+ * @author David de Boer <[email protected]>
+ */
+class DiactorosFactory implements UriFactory
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function createUri($uri)
+    {
+        return new Uri($uri);
+    }
+}

src/UriFactory/GuzzleFactory.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace Http\Discovery\UriFactory;
+
+use GuzzleHttp\Psr7\Uri;
+use Http\Message\UriFactory;
+
+/**
+ * Creates a guzzlehttp/psr7 URI object
+ *
+ * @author David de Boer <[email protected]>
+ */
+class GuzzleFactory implements UriFactory
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function createUri($uri)
+    {
+        return new Uri($uri);
+    }
+}

src/UriFactoryDiscovery.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace Http\Discovery;
+
+use Http\Message\UriFactory;
+
+/**
+ * Finds a URI Factory
+ *
+ * @author David de Boer <[email protected]>
+ */
+class UriFactoryDiscovery extends ClassDiscovery
+{
+    /**
+     * @var array
+     */
+    protected static $classes = [
+        'guzzle' => [
+            'condition' => 'GuzzleHttp\Psr7\Uri',
+            'class' => 'Http\Discovery\UriFactory\GuzzleFactory',
+        ],
+        'diactoros' => [
+            'condition' => 'Zend\Diactoros\Uri',
+            'class' => 'Http\Discovery\UriFactory\DiactorosFactory',
+        ],
+    ];
+
+    /**
+     * Find URI Factory
+     *
+     * @return UriFactory
+     */
+    public static function find()
+    {
+        return parent::find();
+    }
+}