Ejemplo n.º 1
0
 /**
  * Finds all @context URLs in the given JSON-LD input.
  *
  * @param mixed $input the JSON-LD input.
  * @param stdClass $urls a map of URLs (url => false/@contexts).
  * @param bool $replace true to replace the URLs in the given input with
  *           the @contexts from the urls map, false not to.
  * @param string $base the base URL to resolve relative URLs with.
  */
 protected function _findContextUrls($input, $urls, $replace, $base)
 {
     if (is_array($input)) {
         foreach ($input as $e) {
             $this->_findContextUrls($e, $urls, $replace, $base);
         }
     } else {
         if (is_object($input)) {
             foreach ($input as $k => &$v) {
                 if ($k !== '@context') {
                     $this->_findContextUrls($v, $urls, $replace, $base);
                     continue;
                 }
                 // array @context
                 if (is_array($v)) {
                     $length = count($v);
                     for ($i = 0; $i < $length; ++$i) {
                         if (is_string($v[$i])) {
                             $url = jsonld_prepend_base($base, $v[$i]);
                             // replace w/@context if requested
                             if ($replace) {
                                 $ctx = $urls->{$url};
                                 if (is_array($ctx)) {
                                     // add flattened context
                                     array_splice($v, $i, 1, $ctx);
                                     $i += count($ctx);
                                     $length += count($ctx);
                                 } else {
                                     $v[$i] = $ctx;
                                 }
                             } else {
                                 if (!property_exists($urls, $url)) {
                                     $urls->{$url} = false;
                                 }
                             }
                         }
                     }
                 } else {
                     if (is_string($v)) {
                         $v = jsonld_prepend_base($base, $v);
                         // replace w/@context if requested
                         if ($replace) {
                             $input->{$k} = $urls->{$v};
                         } else {
                             if (!property_exists($urls, $v)) {
                                 $urls->{$v} = false;
                             }
                         }
                     }
                 }
             }
         }
     }
 }
Ejemplo n.º 2
0
 /**
  * Prepends a base IRI to the given relative IRI.
  *
  * @param string $base the base IRI.
  * @param string $iri the relative IRI.
  *
  * @return string the absolute IRI.
  */
 protected function _prependBase($base, $iri)
 {
     return jsonld_prepend_base($base, $iri);
 }