plugins/oaiMetadataFormats/dc/OAIMetadataFormat_DC.inc.php

<?php

// $Id$


class OAIMetadataFormat_DC extends OAIMetadataFormat {
   function toXml(&$record, $format = null) {
      $conference =& $record->getData('conference');
      $schedConf =& $record->getData('schedConf');
      $paper =& $record->getData('paper');
      $track =& $record->getData('track');
      $galleys =& $record->getData('galleys');

      // Add page information to sources
      $sources = array($conference->getConferenceTitle() . '; ' . $schedConf->getSchedConfTitle());
      if ($paper->getPages() != '') foreach ($sources as $a => $b) {
         $sources[$a] .= '; ' . $paper->getPages();
      }

      // Get author names
      $creator = array();
      foreach ($paper->getAuthors() as $author) {
         $authorName = $author->getFullName();
         $affiliation = $author->getAffiliation();
         if (!empty($affiliation)) {
            $authorName .= '; ' . $affiliation;
         }
         $creator[] = $authorName;
      }

      // Subjects
      $subjects = array_merge_recursive(
         $this->stripAssocArray((array) $paper->getDiscipline(null)),
         $this->stripAssocArray((array) $paper->getSubject(null)),
         $this->stripAssocArray((array) $paper->getSubjectClass(null))
      );

      // Publishers
      $publishers = $this->stripAssocArray((array) $conference->getTitle(null)); // Default
      $publisherInstitution = (array) $conference->getSetting('publisherInstitution');
      if (!empty($publisherInstitution)) {
         $publishers = $publisherInstitution;
      }

      // Types
      AppLocale::requireComponents(array(LOCALE_COMPONENT_APPLICATION_COMMON));
      $this->stripAssocArray((array) $track->getIdentifyType(null));
      $types = array_merge_recursive(
         empty($types)?array(AppLocale::getLocale() => __('rt.metadata.pkp.peerReviewed')):$types,
         $this->stripAssocArray((array) $paper->getType(null))
      );

      // Formats
      $format = array();
      foreach ($galleys as $galley) {
         $format[] = $galley->getFileType();
      }

      // Get supplementary files
      $relation = array();
      foreach ($paper->getSuppFiles() as $suppFile) {
         // FIXME replace with correct URL
         $relation[] = Request::url($conference->getPath(), $schedConf->getPath(), 'paper', 'download', array($paper->getId(), $suppFile->getFileId()));
      }

      $response = "<oai_dc:dc\n" .
         "\txmlns:oai_dc=\"http://www.openarchives.org/OAI/2.0/oai_dc/\"\n" .
         "\txmlns:dc=\"http://purl.org/dc/elements/1.1/\"\n" .
         "\txmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"\n" .
         "\txsi:schemaLocation=\"http://www.openarchives.org/OAI/2.0/oai_dc/\n" .
         "\thttp://www.openarchives.org/OAI/2.0/oai_dc.xsd\">\n" .
         $this->formatElement('title', $this->stripAssocArray((array) $paper->getLocalizedTitle(null)), true) .
         $this->formatElement('creator', $creator) .
         $this->formatElement('subject', $subjects, true) .
         $this->formatElement('description', $this->stripAssocArray((array) $paper->getAbstract(null)), true) .
         $this->formatElement('publisher', $publishers, true) .
         $this->formatElement('contributor', $this->stripAssocArray((array) $paper->getSponsor(null)), true) .
         $this->formatElement('date', $paper->getDatePublished()) .
         $this->formatElement('type', $types, true) .
         $this->formatElement('format', $format) .
         $this->formatElement('identifier', Request::url($conference->getPath(), $schedConf->getPath(), 'paper', 'view', array($paper->getBestPaperId()))) .
         $this->formatElement('source', $sources, true) .
         $this->formatElement('language', $paper->getLanguage()) .
         $this->formatElement('relation', $relation) .
         $this->formatElement('coverage', array_merge_recursive(
            $this->stripAssocArray((array) $paper->getCoverageGeo(null)),
            $this->stripAssocArray((array) $paper->getCoverageChron(null)),
            $this->stripAssocArray((array) $paper->getCoverageSample(null))
         ), true) .
         $this->formatElement('rights', (array) $conference->getSetting('copyrightNotice')) .
         "</oai_dc:dc>\n";

      return $response;
   }

   function formatElement($name, $value, $multilingual = false) {
      if (!is_array($value)) {
         $value = array($value);
      }

      $response = '';
      foreach ($value as $key => $v) {
         $key = str_replace('_', '-', $key);
         if (!$multilingual) $response .= "\t<dc:$name>" . OAIUtils::prepOutput($v) . "</dc:$name>\n";
         else {
            if (is_array($v)) {
               foreach ($v as $subV) {
                  $response .= "\t<dc:$name xml:lang=\"$key\">" . OAIUtils::prepOutput($subV) . "</dc:$name>\n";
               }
            } else {
               $response .= "\t<dc:$name xml:lang=\"$key\">" . OAIUtils::prepOutput($v) . "</dc:$name>\n";
            }
         }
      }
      return $response;
   }
}

?>

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