add recurring object

src/Serializer/Handler/RecurringHandler.php

@@ -0,0 +1,68 @@
+<?php
+
+namespace DavidBadura\Taskwarrior\Serializer\Handler;
+
+use Carbon\Carbon;
+use DavidBadura\Taskwarrior\Recurring;
+use JMS\Serializer\Context;
+use JMS\Serializer\Exception\RuntimeException;
+use JMS\Serializer\GraphNavigator;
+use JMS\Serializer\Handler\SubscribingHandlerInterface;
+use JMS\Serializer\VisitorInterface;
+
+/**
+ * @author David Badura <d.a.badura@gmail.com>
+ */
+class RecurringHandler implements SubscribingHandlerInterface
+{
+    /**
+     * @return array
+     */
+    public static function getSubscribingMethods()
+    {
+        $methods = array();
+
+        $methods[] = array(
+            'type'      => 'Recurring',
+            'format'    => 'json',
+            'direction' => GraphNavigator::DIRECTION_DESERIALIZATION,
+            'method'    => 'deserializeCarbon'
+        );
+
+        $methods[] = array(
+            'type'      => 'Recurring',
+            'format'    => 'json',
+            'direction' => GraphNavigator::DIRECTION_SERIALIZATION,
+            'method'    => 'serializeCarbon'
+        );
+
+        return $methods;
+    }
+
+    /**
+     * @param VisitorInterface $visitor
+     * @param Recurring $recurring
+     * @param array $type
+     * @param Context $context
+     * @return string
+     */
+    public function serializeCarbon(VisitorInterface $visitor, Recurring $recurring, array $type, Context $context)
+    {
+        return $visitor->visitString((string)$recurring, $type, $context);
+    }
+
+    /**
+     * @param VisitorInterface $visitor
+     * @param string $data
+     * @param array $type
+     * @return \DateTime|null
+     */
+    public function deserializeCarbon(VisitorInterface $visitor, $data, array $type)
+    {
+        if (null === $data) {
+            return null;
+        }
+
+        return new Recurring((string) $data);
+    }
+}