78 

    79 export function getOLACBaseUrl(literalVal) {

    80   let olacRes = null;

    81 

    82   if (!literalVal) {

    83     return null;

    84   }

    85   if (typeof literalVal !== 'object') {

    86     return null;

    87   }

    88   const datatype = literalVal.datatype;

    89 

    90   if (!datatype) {

    91     return null;

    92   }

    93 

    94   _.forEach(constants.OLAC_BASE_URL, function (olacDef, urlPrefix) {

    95     if (_.startsWith(datatype, urlPrefix)) {

    96       olacRes = olacDef;

    97       return false; // we found it, we exit early

    98     }

    99 

   100     return true;

   101   });

   102 

   103   return olacRes;

   104 }

   105 

   106 export function isOLACLiteral(literalDef) {

   107   const olacDef = getOLACBaseUrl(literalDef);

   108 

   109   return Boolean(olacDef);

   110 }