Support for array denormalization.

src/Symfony/Component/Serializer/Exception/BadMethodCallException.php

@@ -0,0 +1,16 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Serializer\Exception;
+
+class BadMethodCallException extends \BadMethodCallException implements ExceptionInterface
+{
+}

src/Symfony/Component/Serializer/Normalizer/ArrayDenormalizer.php

@@ -0,0 +1,77 @@
+<?php
+
+namespace Symfony\Component\Serializer\Normalizer;
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+use Symfony\Component\Serializer\Exception\BadMethodCallException;
+use Symfony\Component\Serializer\Exception\InvalidArgumentException;
+use Symfony\Component\Serializer\SerializerAwareInterface;
+use Symfony\Component\Serializer\SerializerInterface;
+
+/**
+ * Denormalizes arrays of objects.
+ *
+ * @author Alexander M. Turek <me@derrabus.de>
+ */
+class ArrayDenormalizer implements DenormalizerInterface, SerializerAwareInterface
+{
+    /**
+     * @var SerializerInterface|DenormalizerInterface
+     */
+    private $serializer;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function denormalize($data, $class, $format = null, array $context = array())
+    {
+        if ($this->serializer === null) {
+            throw new BadMethodCallException('Please set a serializer before calling denormalize()!');
+        }
+        if (!is_array($data)) {
+            throw new InvalidArgumentException('Data expected to be an array, '.gettype($data).' given.');
+        }
+        if (substr($class, -2) !== '[]') {
+            throw new InvalidArgumentException('Unsupported class: '.$class);
+        }
+
+        $serializer = $this->serializer;
+        $class = substr($class, 0, -2);
+
+        return array_map(
+            function ($data) use ($serializer, $class, $format, $context) {
+                return $serializer->denormalize($data, $class, $format, $context);
+            },
+            $data
+        );
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function supportsDenormalization($data, $type, $format = null)
+    {
+        return substr($type, -2) === '[]'
+            && $this->serializer->supportsDenormalization($data, substr($type, 0, -2), $format);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setSerializer(SerializerInterface $serializer)
+    {
+        if (!$serializer instanceof DenormalizerInterface) {
+            throw new InvalidArgumentException('Expected a serializer that also implements DenormalizerInterface.');
+        }
+
+        $this->serializer = $serializer;
+    }
+}

src/Symfony/Component/Serializer/Normalizer/CustomNormalizer.php

@@ -59,6 +59,10 @@ public function supportsNormalization($data, $format = null)
      */
     public function supportsDenormalization($data, $type, $format = null)
     {
+        if (!class_exists($type)) {
+            return false;
+        }
+
         $class = new \ReflectionClass($type);
 
         return $class->isSubclassOf('Symfony\Component\Serializer\Normalizer\DenormalizableInterface');

src/Symfony/Component/Serializer/Normalizer/GetSetMethodNormalizer.php

@@ -135,7 +135,7 @@ public function supportsNormalization($data, $format = null)
      */
     public function supportsDenormalization($data, $type, $format = null)
     {
-        return $this->supports($type);
+        return class_exists($type) && $this->supports($type);
     }
 
     /**

src/Symfony/Component/Serializer/Normalizer/PropertyNormalizer.php

@@ -135,7 +135,7 @@ public function supportsNormalization($data, $format = null)
      */
     public function supportsDenormalization($data, $type, $format = null)
     {
-        return $this->supports($type);
+        return class_exists($type) && $this->supports($type);
     }
 
     /**

src/Symfony/Component/Serializer/Tests/Normalizer/ArrayDenormalizerTest.php

@@ -0,0 +1,121 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Serializer\Tests\Normalizer;
+
+use Symfony\Component\Serializer\Normalizer\ArrayDenormalizer;
+use Symfony\Component\Serializer\SerializerInterface;
+
+class ArrayDenormalizerTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @var ArrayDenormalizer
+     */
+    private $denormalizer;
+
+    /**
+     * @var SerializerInterface|\PHPUnit_Framework_MockObject_MockObject
+     */
+    private $serializer;
+
+    protected function setUp()
+    {
+        $this->serializer = $this->getMock('Symfony\Component\Serializer\Serializer');
+        $this->denormalizer = new ArrayDenormalizer();
+        $this->denormalizer->setSerializer($this->serializer);
+    }
+
+    public function testDenormalize()
+    {
+        $this->serializer->expects($this->at(0))
+            ->method('denormalize')
+            ->with(array('foo' => 'one', 'bar' => 'two'))
+            ->will($this->returnValue(new ArrayDummy('one', 'two')));
+
+        $this->serializer->expects($this->at(1))
+            ->method('denormalize')
+            ->with(array('foo' => 'three', 'bar' => 'four'))
+            ->will($this->returnValue(new ArrayDummy('three', 'four')));
+
+        $result = $this->denormalizer->denormalize(
+            array(
+                array('foo' => 'one', 'bar' => 'two'),
+                array('foo' => 'three', 'bar' => 'four'),
+            ),
+            __NAMESPACE__.'\ArrayDummy[]'
+        );
+
+        $this->assertEquals(
+            array(
+                new ArrayDummy('one', 'two'),
+                new ArrayDummy('three', 'four'),
+            ),
+            $result
+        );
+    }
+
+    public function testSupportsValidArray()
+    {
+        $this->serializer->expects($this->once())
+            ->method('supportsDenormalization')
+            ->with($this->anything(), __NAMESPACE__.'\ArrayDummy', $this->anything())
+            ->will($this->returnValue(true));
+
+        $this->assertTrue(
+            $this->denormalizer->supportsDenormalization(
+                array(
+                    array('foo' => 'one', 'bar' => 'two'),
+                    array('foo' => 'three', 'bar' => 'four'),
+                ),
+                __NAMESPACE__.'\ArrayDummy[]'
+            )
+        );
+    }
+
+    public function testSupportsInvalidArray()
+    {
+        $this->serializer->expects($this->any())
+            ->method('supportsDenormalization')
+            ->will($this->returnValue(false));
+
+        $this->assertFalse(
+            $this->denormalizer->supportsDenormalization(
+                array(
+                    array('foo' => 'one', 'bar' => 'two'),
+                    array('foo' => 'three', 'bar' => 'four'),
+                ),
+                __NAMESPACE__.'\InvalidClass[]'
+            )
+        );
+    }
+
+    public function testSupportsNoArray()
+    {
+        $this->assertFalse(
+            $this->denormalizer->supportsDenormalization(
+                array('foo' => 'one', 'bar' => 'two'),
+                __NAMESPACE__.'\ArrayDummy'
+            )
+        );
+    }
+}
+
+class ArrayDummy
+{
+    public $foo;
+    public $bar;
+
+    public function __construct($foo, $bar)
+    {
+        $this->foo = $foo;
+        $this->bar = $bar;
+    }
+}

src/Symfony/Component/Serializer/Tests/SerializerTest.php

@@ -11,6 +11,9 @@
 
 namespace Symfony\Component\Serializer\Tests;
 
+use Symfony\Component\Serializer\Normalizer\ArrayDenormalizer;
+use Symfony\Component\Serializer\Normalizer\ObjectNormalizer;
+use Symfony\Component\Serializer\Normalizer\PropertyNormalizer;
 use Symfony\Component\Serializer\Serializer;
 use Symfony\Component\Serializer\Encoder\JsonEncoder;
 use Symfony\Component\Serializer\Normalizer\GetSetMethodNormalizer;
@@ -220,6 +223,51 @@ public function testDecode()
         $result = $this->serializer->decode(json_encode($data), 'json');
         $this->assertEquals($data, $result);
     }
+
+    public function testSupportsArrayDeserialization()
+    {
+        $serializer = new Serializer(
+            array(
+                new GetSetMethodNormalizer(),
+                new PropertyNormalizer(),
+                new ObjectNormalizer(),
+                new CustomNormalizer(),
+                new ArrayDenormalizer(),
+            ),
+            array(
+                'json' => new JsonEncoder(),
+            )
+        );
+
+        $this->assertTrue(
+            $serializer->supportsDenormalization(array(), __NAMESPACE__.'\Model[]', 'json')
+        );
+    }
+
+    public function testDeserializeArray()
+    {
+        $jsonData = '[{"title":"foo","numbers":[5,3]},{"title":"bar","numbers":[2,8]}]';
+
+        $expectedData = array(
+            Model::fromArray(array('title' => 'foo', 'numbers' => array(5, 3))),
+            Model::fromArray(array('title' => 'bar', 'numbers' => array(2, 8))),
+        );
+
+        $serializer = new Serializer(
+            array(
+                new GetSetMethodNormalizer(),
+                new ArrayDenormalizer(),
+            ),
+            array(
+                'json' => new JsonEncoder(),
+            )
+        );
+
+        $this->assertEquals(
+            $expectedData,
+            $serializer->deserialize($jsonData, __NAMESPACE__.'\Model[]', 'json')
+        );
+    }
 }
 
 class Model