1 <?php

     2 

     3 namespace CorpusParole\Repositories;

     4 

     5 use Config;

     6 use Log;

     7 use CorpusParole\Models\Document;

     8 

     9 /**

    10  * Implement the DocumentRepository using EasyRdf

    11  */

    12 class RdfDocumentRepository implements DocumentRepository {

    13 

    14     private $sparqlClient;

    15 

    16     function __construct() {

    17         $this->sparqlClient = new \EasyRdf_Sparql_Client(Config::get('corpusparole.sesame_query_url'));

    18     }

    19 

    20     public function all() {

    21 

    22         $docs = $this->sparqlClient->query(

    23             'SELECT * WHERE {'.

    24             '    ?uri <http://xmlns.com/foaf/0.1/primaryTopic> ?b;'.

    25             '} ORDER BY ?uri'

    26         );

    27 

    28         $data = [];

    29 

    30         foreach ($docs as $doc) {

    31             array_push($data, new Document($doc->uri->getUri()));

    32         }

    33 

    34         return $data;

    35     }

    36 

    37     public function get($id) {

    38 

    39         $doc_uri = Config::get('corpusparole.cocoon_doc_id_base_uri').$id;

    40 

    41         //$doc = $sparql->query(

    42         //	"CONSTRUCT {".

    43         //	"    ?doc ?p ?v.".

    44         //	"}".

    45         //	"WHERE {".

    46         //	"    <$doc_uri> <http://xmlns.com/foaf/0.1/primaryTopic> ?doc.".

    47         //	"    ?doc ?p ?v;".

    48         //	"}"

    49         //);

    50 

    51         // We want the CBD (Concise Bounded Description, cf. http://www.w3.org/Submission/CBD/)

    52         // WARNING: This seems to work in sesame for our dataset.

    53         $doc = $this->sparqlClient->query(

    54             'DESCRIBE ?doc '.

    55             'WHERE {'.

    56             "    <$doc_uri> <http://xmlns.com/foaf/0.1/primaryTopic> ?doc;".

    57             '}'

    58         );

    59 

    60         return new Document($doc_uri, $doc);

    61 

    62     }

    63 

    64 }