1 <?php

     2 namespace CorpusParole\Models;

     3 

     4 use CorpusParole\Libraries\RdfModel\RdfModelResource;

     5 use JsonSerializable;

     6 use Log;

     7 

     8 /**

     9  * Model class for Document. Inherit from EasyRd\Resource

    10  * SELECT DISTINCT ?g WHERE {GRAPH ?g {?s ?p ?o}}

    11  */

    12 abstract class WebResource extends RdfModelResource implements JsonSerializable {

    13 

    14     public function __construct(...$args) {

    15         list($uri, $graph) = $args;

    16         parent::__construct($uri, $graph);

    17     }

    18 

    19     private $format = -1;

    20 

    21     abstract protected function doClearMemoizationCache();

    22 

    23     public function clearMemoizationCache() {

    24         $this->format = -1;

    25         $this->doClearMemoizationCache();

    26     }

    27 

    28     public function getFormat() {

    29         if($this->format === -1) {

    30             $format = $this->getLiteral("<http://purl.org/dc/elements/1.1/format>");

    31             $this->format = is_null($format)?null:$format->getValue();

    32         }

    33         return $this->format;

    34     }

    35 

    36     public function getUrl() {

    37         return $this->getUri();

    38     }

    39 

    40     abstract protected function jsonSerializeExtra();

    41 

    42     public function jsonSerialize() {

    43         return array_merge(

    44             [

    45                 'url' => $this->getUrl(),

    46                 'format' => $this->getFormat()

    47             ],

    48             $this->jsonSerializeExtra()

    49         );

    50     }

    51 

    52 }