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<?php

namespace SAREhub\Client\Processor;

use SAREhub\Client\DataFormat\DataFormat;
use SAREhub\Client\Message\Exchange;

/**
 * Marshaling exchange input message body with selected DataFormat
 */
class MarshalProcessor implements Processor
{

    /**
     * @var DataFormat
     */
    private $dataFormat;

    public function __construct(DataFormat $dataFormat)
    {
        $this->dataFormat = $dataFormat;
    }

    /**
     * @param DataFormat $dataFormat
     * @return MarshalProcessor
     */
    public static function withDataFormat(DataFormat $dataFormat)
    {
        return new self($dataFormat);
    }

    public function process(Exchange $exchange)
    {
        $exchange->setOut($exchange->getIn()->copy());
        $marshaled = $this->getDataFormat()->marshal($exchange);
        $exchange->getOut()->setBody($marshaled);
    }

    /**
     * @return DataFormat
     */
    public function getDataFormat()
    {
        return $this->dataFormat;
    }

    public function __toString()
    {
        return 'Marshal[' . $this->getDataFormat() . ']';
    }
}