JMSSerializerBundle/Serializer/LazyLoadingSerializer.php

<?php

/*
 * Copyright 2011 Johannes M. Schmitt <schmittjoh@gmail.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

namespace JMS\SerializerBundle\Serializer;

use Symfony\Component\DependencyInjection\ContainerInterface;
use JMS\SerializerBundle\Serializer\SerializerAwareInterface;

/**
 * Serializer that supports lazy-loading encoders.
 *
 * @author Johannes M. Schmitt <schmittjoh@gmail.com>
 */
class LazyLoadingSerializer extends Serializer
{
    private $container;

    public function setContainer(ContainerInterface $container)
    {
        $this->container = $container;
    }

    protected function getEncoder($format)
    {
        $encoder = parent::getEncoder($format);

        if (is_string($encoder)) {
            $encoder = $this->container->get($encoder);

            if ($encoder instanceof SerializerAwareInterface) {
                $encoder->setSerializer($this);
            }
        }

        return $encoder;
    }
}