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[yaffs-website] / vendor / symfony / serializer / Normalizer / DateTimeNormalizer.php

diff --git a/vendor/symfony/serializer/Normalizer/DateTimeNormalizer.php b/vendor/symfony/serializer/Normalizer/DateTimeNormalizer.php
new file mode 100644 (file)
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+++ b/vendor/symfony/serializer/Normalizer/DateTimeNormalizer.php
@@ -0,0 +1,129 @@
+<?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\Normalizer;
+
+use Symfony\Component\Serializer\Exception\InvalidArgumentException;
+use Symfony\Component\Serializer\Exception\UnexpectedValueException;
+
+/**
+ * Normalizes an object implementing the {@see \DateTimeInterface} to a date string.
+ * Denormalizes a date string to an instance of {@see \DateTime} or {@see \DateTimeImmutable}.
+ *
+ * @author Kévin Dunglas <dunglas@gmail.com>
+ */
+class DateTimeNormalizer implements NormalizerInterface, DenormalizerInterface
+{
+    const FORMAT_KEY = 'datetime_format';
+
+    /**
+     * @var string
+     */
+    private $format;
+
+    /**
+     * @param string $format
+     */
+    public function __construct($format = \DateTime::RFC3339)
+    {
+        $this->format = $format;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @throws InvalidArgumentException
+     */
+    public function normalize($object, $format = null, array $context = array())
+    {
+        if (!$object instanceof \DateTimeInterface) {
+            throw new InvalidArgumentException('The object must implement the "\DateTimeInterface".');
+        }
+
+        $format = isset($context[self::FORMAT_KEY]) ? $context[self::FORMAT_KEY] : $this->format;
+
+        return $object->format($format);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function supportsNormalization($data, $format = null)
+    {
+        return $data instanceof \DateTimeInterface;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @throws UnexpectedValueException
+     */
+    public function denormalize($data, $class, $format = null, array $context = array())
+    {
+        $dateTimeFormat = isset($context[self::FORMAT_KEY]) ? $context[self::FORMAT_KEY] : null;
+
+        if (null !== $dateTimeFormat) {
+            $object = \DateTime::class === $class ? \DateTime::createFromFormat($dateTimeFormat, $data) : \DateTimeImmutable::createFromFormat($dateTimeFormat, $data);
+
+            if (false !== $object) {
+                return $object;
+            }
+
+            $dateTimeErrors = \DateTime::class === $class ? \DateTime::getLastErrors() : \DateTimeImmutable::getLastErrors();
+
+            throw new UnexpectedValueException(sprintf(
+                'Parsing datetime string "%s" using format "%s" resulted in %d errors:'."\n".'%s',
+                $data,
+                $dateTimeFormat,
+                $dateTimeErrors['error_count'],
+                implode("\n", $this->formatDateTimeErrors($dateTimeErrors['errors']))
+            ));
+        }
+
+        try {
+            return \DateTime::class === $class ? new \DateTime($data) : new \DateTimeImmutable($data);
+        } catch (\Exception $e) {
+            throw new UnexpectedValueException($e->getMessage(), $e->getCode(), $e);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function supportsDenormalization($data, $type, $format = null)
+    {
+        $supportedTypes = array(
+            \DateTimeInterface::class => true,
+            \DateTimeImmutable::class => true,
+            \DateTime::class => true,
+        );
+
+        return isset($supportedTypes[$type]);
+    }
+
+    /**
+     * Formats datetime errors.
+     *
+     * @param array $errors
+     *
+     * @return string[]
+     */
+    private function formatDateTimeErrors(array $errors)
+    {
+        $formattedErrors = array();
+
+        foreach ($errors as $pos => $message) {
+            $formattedErrors[] = sprintf('at position %d: %s', $pos, $message);
+        }
+
+        return $formattedErrors;
+    }
+}