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Dispatcher.php
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Dispatcher.php
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<?php
/**
* Munee: Optimising Your Assets
*
* @copyright Cody Lundquist 2013
* @license http://opensource.org/licenses/mit-license.php
*/
namespace Munee;
/**
* The outermost layer of Munee that wraps everything in a Try/Catch block
*
* @author Cody Lundquist
*/
class Dispatcher
{
/**
* Dispatch default options
*
* @var array
*/
static $defaultOptions = array('setHeaders' => true);
/**
* 1) Initialise the Request
* 2) Grab the AssetType based on the request and initialise it
* 3) Instantiate the Response class, set the headers, and then return the content
*
* Rap everything in a Try/Catch block for error handling
*
* @param Request $Request
* @param array $options
*
* @return string
*
* @catch NotFoundException
* @catch ErrorException
*/
public static function run(Request $Request, $options = array())
{
try {
/**
* Merge in default options
*/
$options = array_merge(self::$defaultOptions, $options);
/**
* Set the header controller. Can be overwritten by the dispatcher options
*/
if (
isset($options['headerController']) &&
$options['headerController'] instanceof Asset\HeaderSetter
) {
$headerController = $options['headerController'];
} else {
$headerController = new Asset\HeaderSetter;
}
/**
* Initialise the Request
*/
$Request->init();
/**
* Grab the correct AssetType
*/
$AssetType = Asset\Registry::getClass($Request);
/**
* Initialise the AssetType
*/
$AssetType->init();
/**
* Create a response
*/
$Response = new Response($AssetType);
$Response->setHeaderController($headerController);
/**
* Set the headers if told to do so
*/
if ($options['setHeaders']) {
/**
* Set the headers.
*/
$Response->setHeaders();
}
/**
* If the content hasn't been modified return null so only headers are sent
* otherwise return the content
*/
return $Response->notModified ? null : $Response->render();
} catch (Asset\NotFoundException $e) {
$headerController->statusCode('HTTP/1.0', 404, 'Not Found');
$headerController->headerField('Status', '404 Not Found');
return 'Error: ' . $e->getMessage();
} catch (ErrorException $e) {
$errors = 'Error: ' . $e->getMessage();
while ($e = $e->getPrevious()) {
$errors .= "<br>" . $e->getMessage();
}
return $errors;
}
}
}