Current File : /home/lightco1/upgrade.lightco.com.au/libraries/fof30/Hal/Render/Json.php
<?php
/**
* @package FOF
* @copyright 2010-2017 Nicholas K. Dionysopoulos / Akeeba Ltd
* @license GNU GPL version 2 or later
*/
namespace FOF30\Hal\Render;
use FOF30\Hal\Document;
use FOF30\Hal\Link;
use FOF30\Model\DataModel;
defined('_JEXEC') or die;
/**
* Implements the HAL over JSON renderer
*
* @see http://stateless.co/hal_specification.html
*/
class Json implements RenderInterface
{
/**
* When data is an array we'll output the list of data under this key
*
* @var string
*/
private $_dataKey = '_list';
/**
* The document to render
*
* @var Document
*/
protected $_document;
/**
* Public constructor
*
* @param Document &$document The document to render
*/
public function __construct(Document &$document)
{
$this->_document = $document;
}
/**
* Render a HAL document in JSON format
*
* @param array $options Rendering options. You can currently only set json_options (json_encode options)
*
* @return string The JSON representation of the HAL document
*/
public function render($options = array())
{
if (isset($options['data_key']))
{
$this->_dataKey = $options['data_key'];
}
if (isset($options['json_options']))
{
$jsonOptions = $options['json_options'];
}
else
{
$jsonOptions = 0;
}
$serialiseThis = new \stdClass;
// Add links
$collection = $this->_document->getLinks();
$serialiseThis->_links = new \stdClass;
foreach ($collection as $rel => $links)
{
if (!is_array($links))
{
$serialiseThis->_links->$rel = $this->_getLink($links);
}
else
{
$serialiseThis->_links->$rel = array();
foreach ($links as $link)
{
array_push($serialiseThis->_links->$rel, $this->_getLink($link));
}
}
}
// Add embedded documents
$collection = $this->_document->getEmbedded();
if (!empty($collection))
{
$serialiseThis->_embedded = new \stdClass;
foreach ($collection as $rel => $embeddeddocs)
{
$serialiseThis->_embedded->$rel = array();
if (!is_array($embeddeddocs))
{
$embeddeddocs = array($embeddeddocs);
}
foreach ($embeddeddocs as $embedded)
{
$renderer = new static($embedded);
array_push($serialiseThis->_embedded->$rel, $renderer->render($options));
}
}
}
// Add data
$data = $this->_document->getData();
if (is_object($data))
{
if ($data instanceof DataModel)
{
$data = $data->toArray();
}
else
{
$data = (array) $data;
}
if (!empty($data))
{
foreach ($data as $k => $v)
{
$serialiseThis->$k = $v;
}
}
}
elseif (is_array($data))
{
$serialiseThis->{$this->_dataKey} = $data;
}
return json_encode($serialiseThis, $jsonOptions);
}
/**
* Converts a FOFHalLink object into a stdClass object which will be used
* for JSON serialisation
*
* @param Link $link The link you want converted
*
* @return \stdClass The converted link object
*/
protected function _getLink(Link $link)
{
$ret = array(
'href' => $link->href
);
if ($link->templated)
{
$ret['templated'] = 'true';
}
if ($link->name)
{
$ret['name'] = $link->name;
}
if ($link->hreflang)
{
$ret['hreflang'] = $link->hreflang;
}
if ($link->title)
{
$ret['title'] = $link->title;
}
return (object) $ret;
}
}
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