Dc11SchemaArticleAdapter.inc.php

<?php
 
import('lib.pkp.classes.metadata.MetadataDataObjectAdapter');
 
class Dc11SchemaArticleAdapter extends MetadataDataObjectAdapter {
   //
   // Implement template methods from Filter
   //
   function getClassName() {
      return 'plugins.metadata.dc11.filter.Dc11SchemaArticleAdapter';
   }
 
 
   //
   // Implement template methods from MetadataDataObjectAdapter
   //
   function &injectMetadataIntoDataObject(&$metadataDescription, &$targetDataObject) {
      // Not implemented
      assert(false);
   }
 
   function &extractMetadataFromDataObject(&$article) {
      assert(is_a($article, 'Article'));
 
      AppLocale::requireComponents(LOCALE_COMPONENT_APP_COMMON, LOCALE_COMPONENT_PKP_SUBMISSION);
 
      // Retrieve data that belongs to the article.
      // FIXME: Retrieve this data from the respective entity DAOs rather than
      // from the OAIDAO once we've migrated all OAI providers to the
      // meta-data framework. We're using the OAIDAO here because it
      // contains cached entities and avoids extra database access if this
      // adapter is called from an OAI context.
      $oaiDao = DAORegistry::getDAO('OAIDAO'); /* @var $oaiDao OAIDAO */
      $journal = $oaiDao->getJournal($article->getData('contextId'));
      $section = $oaiDao->getSection($article->getSectionId());
 
      $dc11Description = $this->instantiateMetadataDescription();
 
      // Title
      $this->_addLocalizedElements($dc11Description, 'dc:title', $article->getFullTitle(null));
 
      // Creator
      $authors = $article->getAuthors();
      foreach($authors as $author) {
         $dc11Description->addStatement('dc:creator', $author->getFullName(false, true));
      }
 
      // Subject
      $submissionKeywordDao = DAORegistry::getDAO('SubmissionKeywordDAO');
      $submissionSubjectDao = DAORegistry::getDAO('SubmissionSubjectDAO');
      $supportedLocales = array_keys(AppLocale::getSupportedFormLocales());
      $subjects = array_merge_recursive(
         (array) $submissionKeywordDao->getKeywords($article->getCurrentPublication()->getId(), $supportedLocales),
         (array) $submissionSubjectDao->getSubjects($article->getCurrentPublication()->getId(), $supportedLocales)
      );
      $this->_addLocalizedElements($dc11Description, 'dc:subject', $subjects);
 
      // Description
      $this->_addLocalizedElements($dc11Description, 'dc:description', $article->getAbstract(null));
 
      // Publisher
      $publisherInstitution = $journal->getData('publisherInstitution');
      if (!empty($publisherInstitution)) {
         $publishers = array($journal->getPrimaryLocale() => $publisherInstitution);
      } else {
         $publishers = $journal->getName(null); // Default
      }
      $this->_addLocalizedElements($dc11Description, 'dc:publisher', $publishers);
 
      // Contributor
      $contributors = (array) $article->getSponsor(null);
      foreach ($contributors as $locale => $contributor) {
         $contributors[$locale] = array_map('trim', explode(';', $contributor));
      }
      $this->_addLocalizedElements($dc11Description, 'dc:contributor', $contributors);
 
 
      // Date
      if (is_a($article, 'Submission')) {
         if ($article->getDatePublished()) $dc11Description->addStatement('dc:date', date('Y-m-d', strtotime($article->getDatePublished())));      }
 
      // Type
      $driverType = 'info:eu-repo/semantics/preprint';
      $dc11Description->addStatement('dc:type', $driverType, METADATA_DESCRIPTION_UNKNOWN_LOCALE);
      $this->_addLocalizedElements($dc11Description, 'dc:type', $types);
      $driverVersion = 'info:eu-repo/semantics/publishedVersion';
      $dc11Description->addStatement('dc:type', $driverVersion, METADATA_DESCRIPTION_UNKNOWN_LOCALE);
 
      // Format
      if (is_a($article, 'Submission')) {
         $articleGalleyDao = DAORegistry::getDAO('ArticleGalleyDAO'); /* @var $articleGalleyDao ArticleGalleyDAO */
         $galleys = $articleGalleyDao->getByPublicationId($article->getCurrentPublication()->getId());
         $formats = array();
         while ($galley = $galleys->next()) {
            $dc11Description->addStatement('dc:format', $galley->getFileType());
         }
      }
 
      // Identifier: URL
      $request = Application::get()->getRequest();
      if (is_a($article, 'Submission')) {
         $dc11Description->addStatement('dc:identifier', $request->url($journal->getPath(), 'preprint', 'view', array($article->getBestId())));
      }
 
      // Get galleys and supp files.
      $galleys = array();
      if (is_a($article, 'Submission')) {
         $articleGalleyDao = DAORegistry::getDAO('ArticleGalleyDAO'); /* @var $articleGalleyDao ArticleGalleyDAO */
         $galleys = $articleGalleyDao->getByPublicationId($article->getCurrentPublication()->getId())->toArray();
      }
 
      // Language
      $locales = array();
      if (is_a($article, 'Submission')) {
         foreach ($galleys as $galley) {
            $galleyLocale = $galley->getLocale();
            if(!is_null($galleyLocale) && !in_array($galleyLocale, $locales)) {
               $locales[] = $galleyLocale;
               $dc11Description->addStatement('dc:language', AppLocale::getIso3FromLocale($galleyLocale));
            }
         }
      }
      $articleLanguage = $article->getLanguage();
      if (empty($locales) && !empty($articleLanguage)) {
         $dc11Description->addStatement('dc:language', strip_tags($articleLanguage));
      }
 
      // Relation
      // full text URLs
      if ($includeUrls) foreach ($galleys as $galley) {
         $relation = $request->url($journal->getPath(), 'article', 'view', array($article->getBestId(), $galley->getBestGalleyId()));
         $dc11Description->addStatement('dc:relation', $relation);
      }
 
      // Public identifiers
      $pubIdPlugins = (array) PluginRegistry::loadCategory('pubIds', true, $journal->getId());
      foreach ($pubIdPlugins as $pubIdPlugin) {
         if ($pubArticleId = $article->getStoredPubId($pubIdPlugin->getPubIdType())) {
            $dc11Description->addStatement('dc:identifier', $pubArticleId);
         }
         foreach ($galleys as $galley) {
            if ($pubGalleyId = $galley->getStoredPubId($pubIdPlugin->getPubIdType())) {
               $dc11Description->addStatement('dc:relation', $pubGalleyId);
            }
         }
      }
 
      // Coverage
      $this->_addLocalizedElements($dc11Description, 'dc:coverage', (array) $article->getCoverage(null));
 
      // Rights: Add both copyright statement and license
      $copyrightHolder = $article->getLocalizedCopyrightHolder();
      $copyrightYear = $article->getCopyrightYear();
      if (!empty($copyrightHolder) && !empty($copyrightYear)) {
         $dc11Description->addStatement('dc:rights', __('submission.copyrightStatement', array('copyrightHolder' => $copyrightHolder, 'copyrightYear' => $copyrightYear)));
      }
      if ($licenseUrl = $article->getLicenseURL()) $dc11Description->addStatement('dc:rights', $licenseUrl);
 
      HookRegistry::call('Dc11SchemaArticleAdapter::extractMetadataFromDataObject', array($this, $article, $journal, &$dc11Description));
 
      return $dc11Description;
   }
 
   function getDataObjectMetadataFieldNames($translated = true) {
      // All DC fields are mapped.
      return array();
   }
 
 
   //
   // Private helper methods
   //
   function _addLocalizedElements(&$description, $propertyName, $localizedValues) {
      foreach(stripAssocArray((array) $localizedValues) as $locale => $values) {
         if (is_scalar($values)) $values = array($values);
         foreach($values as $value) {
            if (!empty($value)) {
               $description->addStatement($propertyName, $value, $locale);
            }
         }
      }
   }
}