MAGETWO-59444: Create serializer interface and json class in framework

app/etc/di.xml

@@ -154,7 +154,7 @@
     <preference for="Magento\Framework\EntityManager\MapperInterface" type="Magento\Framework\EntityManager\CompositeMapper"/>
     <preference for="Magento\Framework\Console\CommandListInterface" type="Magento\Framework\Console\CommandList"/>
     <preference for="Magento\Framework\DataObject\IdentityGeneratorInterface" type="Magento\Framework\DataObject\IdentityService" />
-    <preference for="Magento\Framework\Json\JsonInterface" type="Magento\Framework\Json\Json" />
+    <preference for="Magento\Framework\Serialize\SerializerInterface" type="Magento\Framework\Serialize\Json" />
     <type name="Magento\Framework\Model\ResourceModel\Db\TransactionManager" shared="false" />
     <type name="Magento\Framework\Logger\Handler\Base">
         <arguments>

lib/internal/Magento/Framework/Json/Json.php → lib/internal/Magento/Framework/Serialize/Json.php

@@ -3,23 +3,23 @@
  * Copyright © 2016 Magento. All rights reserved.
  * See COPYING.txt for license details.
  */
-namespace Magento\Framework\Json;
+namespace Magento\Framework\Serialize;
 
-class Json implements JsonInterface
+class Json implements SerializerInterface
 {
     /**
      * {@inheritDoc}
      */
-    public function encode($data, $options = 0)
+    public function serialize($data)
     {
-        return json_encode($data, $options);
+        return json_encode($data);
     }
 
     /**
      * {@inheritDoc}
      */
-    public function decode($string, $objectDecodeType = self::TYPE_ARRAY)
+    public function unserialize($string)
     {
-        return json_decode($string, $objectDecodeType);
+        return json_decode($string, true);
     }
 }

lib/internal/Magento/Framework/Json/JsonInterface.php → lib/internal/Magento/Framework/Serialize/SerializerInterface.php

@@ -3,36 +3,24 @@
  * Copyright © 2016 Magento. All rights reserved.
  * See COPYING.txt for license details.
  */
-namespace Magento\Framework\Json;
+namespace Magento\Framework\Serialize;
 
-interface JsonInterface
+interface SerializerInterface
 {
     /**
-     * Decode object as array
-     */
-    const TYPE_ARRAY  = 1;
-
-    /**
-     * Decode object as object
-     */
-    const TYPE_OBJECT = 0;
-
-    /**
-     * Encode $data into the JSON format. Please see http://php.net/manual/en/function.json-encode.php for supported
-     * values for $option
+     * Serialize data into string
      *
      * @param array|string $data
-     * @param int $options
      * @return string|bool
      */
-    public function encode($data, $options = 0);
+    public function serialize($data);
 
     /**
-     * Decode the given string which is encoded in the JSON format
+     * Unserialize the given string into array
      *
      * @param string $string
      * @param int $objectDecodeType
-     * @return array|\stdClass
+     * @return array
      */
-    public function decode($string, $objectDecodeType = self::TYPE_ARRAY);
+    public function unserialize($string);
 }

lib/internal/Magento/Framework/Json/Test/Unit/JsonTest.php → lib/internal/Magento/Framework/Serialize/Test/Unit/JsonTest.php

@@ -3,15 +3,15 @@
  * Copyright © 2016 Magento. All rights reserved.
  * See COPYING.txt for license details.
  */
-namespace Magento\Framework\Json\Test\Unit;
+namespace Magento\Framework\Serialize\Test\Unit;
 
-use Magento\Framework\Json\JsonInterface;
-use Magento\Framework\Json\Json;
+use Magento\Framework\Serialize\SerializerInterface;
+use Magento\Framework\Serialize\Json;
 
 class JsonTest extends \PHPUnit_Framework_TestCase
 {
     /**
-     * @var Json
+     * @var \Magento\Framework\Serialize\Json
      */
     private $json;
 
@@ -26,10 +26,10 @@ class JsonTest extends \PHPUnit_Framework_TestCase
      * @param int $objectDecodeType
      * @dataProvider encodeDecodeDataProvider
      */
-    public function testEncodeDecode($value, $objectDecodeType)
+    public function testEncodeDecode($value)
     {
         $this->assertEquals(
-            $this->json->decode($this->json->encode($value), $objectDecodeType),
+            $this->json->unserialize($this->json->serialize($value)),
             $value
         );
     }
@@ -39,11 +39,10 @@ class JsonTest extends \PHPUnit_Framework_TestCase
         $object = new \stdClass();
         $object->a = 'b';
         return [
-            ['', JsonInterface::TYPE_ARRAY],
-            [null, JsonInterface::TYPE_ARRAY],
-            [false, JsonInterface::TYPE_ARRAY],
-            [['a' => 'b'], JsonInterface::TYPE_ARRAY],
-            [$object, JsonInterface::TYPE_OBJECT]
+            [''],
+            [null],
+            [false],
+            [['a' => 'b']],
         ];
     }
 }