Arc.php

1. 8.x drupal/core/vendor/easyrdf/easyrdf/lib/EasyRdf/Parser/Arc.php
2. 8.x drupal/core/vendor/easyrdf/easyrdf/lib/EasyRdf/Serialiser/Arc.php

<?php

/**
 * EasyRdf
 *
 * LICENSE
 *
 * Copyright (c) 2009-2012 Nicholas J Humfrey.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 3. The name of the author 'Nicholas J Humfrey" may be used to endorse or
 *    promote products derived from this software without specific prior
 *    written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * @package    EasyRdf
 * @copyright  Copyright (c) 2009-2012 Nicholas J Humfrey
 * @license    http://www.opensource.org/licenses/bsd-license.php
 * @version    $Id$
 */

/**
 * Class to parse RDF using the ARC2 library.
 *
 * @package    EasyRdf
 * @copyright  Copyright (c) 2009-2012 Nicholas J Humfrey
 * @license    http://www.opensource.org/licenses/bsd-license.php
 */
class EasyRdf_Parser_Arc extends EasyRdf_Parser_RdfPhp {
  private static $supportedTypes = array(
    'rdfxml' => 'RDFXML',
    'turtle' => 'Turtle',
    'ntriples' => 'Turtle',
    'rdfa' => 'SemHTML',
  );

  /**
   * Constructor
   *
   * @return object EasyRdf_Parser_Arc
   */
  public function __construct() {
    require_once 'arc/ARC2.php';
  }

  /**
   * Parse an RDF document into an EasyRdf_Graph
   *
   * @param object EasyRdf_Graph $graph   the graph to load the data into
   * @param string               $data    the RDF document data
   * @param string               $format  the format of the input data
   * @param string               $baseUri the base URI of the data being parsed
   * @return integer             The number of triples added to the graph
   */
  public function parse($graph, $data, $format, $baseUri) {
    parent::checkParseParams($graph, $data, $format, $baseUri);
    if (array_key_exists($format, self::$supportedTypes)) {
      $className = self::$supportedTypes[$format];
    }
    else {
      throw new EasyRdf_Exception("EasyRdf_Parser_Arc does not support: {$format}");
    }
    $parser = ARC2::getParser($className);
    if ($parser) {
      $parser
        ->parse($baseUri, $data);
      $rdfphp = $parser
        ->getSimpleIndex(false);
      return parent::parse($graph, $rdfphp, 'php', $baseUri);
    }
    else {
      throw new EasyRdf_Exception("ARC2 failed to get a {$className} parser.");
    }
  }

}