Kitodo.Presentation.
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577 lines
25 KiB
577 lines
25 KiB
<?php |
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namespace Kitodo\Dlf\Common; |
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/** |
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* (c) Kitodo. Key to digital objects e.V. <contact@kitodo.org> |
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* |
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* This file is part of the Kitodo and TYPO3 projects. |
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* |
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* @license GNU General Public License version 3 or later. |
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* For the full copyright and license information, please read the |
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* LICENSE.txt file that was distributed with this source code. |
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*/ |
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/** |
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* Indexer class for the 'dlf' extension |
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* |
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* @author Sebastian Meyer <sebastian.meyer@slub-dresden.de> |
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* @package TYPO3 |
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* @subpackage dlf |
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* @access public |
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*/ |
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class Indexer { |
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/** |
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* The extension key |
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* |
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* @var string |
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* @access public |
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*/ |
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public static $extKey = 'dlf'; |
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/** |
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* Array of metadata fields' configuration |
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* @see loadIndexConf() |
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* |
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* @var array |
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* @access protected |
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*/ |
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protected static $fields = [ |
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'autocomplete' => [], |
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'facets' => [], |
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'sortables' => [], |
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'indexed' => [], |
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'stored' => [], |
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'tokenized' => [], |
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'fieldboost' => [] |
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]; |
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/** |
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* Is the index configuration loaded? |
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* @see $fields |
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* |
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* @var boolean |
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* @access protected |
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*/ |
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protected static $fieldsLoaded = FALSE; |
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/** |
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* List of already processed documents |
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* |
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* @var array |
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* @access protected |
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*/ |
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protected static $processedDocs = []; |
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/** |
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* Instance of \Kitodo\Dlf\Common\Solr class |
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* |
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* @var \Kitodo\Dlf\Common\Solr |
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* @access protected |
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*/ |
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protected static $solr; |
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/** |
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* Insert given document into Solr index |
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* |
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* @access public |
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* |
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* @param \Kitodo\Dlf\Common\Document &$doc: The document to add |
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* @param integer $core: UID of the Solr core to use |
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* |
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* @return integer 0 on success or 1 on failure |
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*/ |
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public static function add(Document &$doc, $core = 0) { |
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if (in_array($doc->uid, self::$processedDocs)) { |
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return 0; |
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} elseif (self::solrConnect($core, $doc->pid)) { |
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$errors = 0; |
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// Handle multi-volume documents. |
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if ($doc->parentId) { |
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$parent = Document::getInstance($doc->parentId, 0, TRUE); |
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if ($parent->ready) { |
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$errors = self::add($parent, $core); |
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} else { |
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Helper::devLog('Could not load parent document with UID '.$doc->parentId, DEVLOG_SEVERITY_ERROR); |
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return 1; |
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} |
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} |
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try { |
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// Add document to list of processed documents. |
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self::$processedDocs[] = $doc->uid; |
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// Delete old Solr documents. |
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$updateQuery = self::$solr->service->createUpdate(); |
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$updateQuery->addDeleteQuery('uid:'.$doc->uid); |
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self::$solr->service->update($updateQuery); |
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// Index every logical unit as separate Solr document. |
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foreach ($doc->tableOfContents as $logicalUnit) { |
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if (!$errors) { |
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$errors = self::processLogical($doc, $logicalUnit); |
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} else { |
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break; |
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} |
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} |
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// Index fulltext files if available. |
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if ($doc->hasFulltext) { |
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foreach ($doc->physicalStructure as $pageNumber => $xmlId) { |
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if (!$errors) { |
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$errors = self::processPhysical($doc, $pageNumber, $doc->physicalStructureInfo[$xmlId]); |
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} else { |
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break; |
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} |
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} |
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} |
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// Commit all changes. |
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$updateQuery = self::$solr->service->createUpdate(); |
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$updateQuery->addCommit(); |
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self::$solr->service->update($updateQuery); |
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// Get document title from database. |
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$result = $GLOBALS['TYPO3_DB']->exec_SELECTquery( |
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'tx_dlf_documents.title AS title', |
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'tx_dlf_documents', |
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'tx_dlf_documents.uid='.intval($doc->uid) |
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.Helper::whereClause('tx_dlf_documents'), |
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'', |
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'', |
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'1' |
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); |
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$resArray = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($result); |
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if ((TYPO3_REQUESTTYPE & TYPO3_REQUESTTYPE_CLI) == FALSE) { |
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if (!$errors) { |
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$message = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance( |
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\TYPO3\CMS\Core\Messaging\FlashMessage::class, |
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htmlspecialchars(sprintf(Helper::getMessage('flash.documentIndexed'), $resArray['title'], $doc->uid)), |
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Helper::getMessage('flash.done', TRUE), |
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\TYPO3\CMS\Core\Messaging\FlashMessage::OK, |
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TRUE |
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); |
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} else { |
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$message = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance( |
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\TYPO3\CMS\Core\Messaging\FlashMessage::class, |
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htmlspecialchars(sprintf(Helper::getMessage('flash.documentNotIndexed'), $resArray['title'], $doc->uid)), |
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Helper::getMessage('flash.error', TRUE), |
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\TYPO3\CMS\Core\Messaging\FlashMessage::ERROR, |
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TRUE |
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); |
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} |
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Helper::addMessage($message); |
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} |
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return $errors; |
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} catch (\Exception $e) { |
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if ((TYPO3_REQUESTTYPE & TYPO3_REQUESTTYPE_CLI) == FALSE) { |
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$message = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance( |
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\TYPO3\CMS\Core\Messaging\FlashMessage::class, |
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Helper::getMessage('flash.solrException', TRUE).'<br />'.htmlspecialchars($e->getMessage()), |
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Helper::getMessage('flash.error', TRUE), |
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\TYPO3\CMS\Core\Messaging\FlashMessage::ERROR, |
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TRUE |
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); |
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Helper::addMessage($message); |
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} |
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Helper::devLog('Apache Solr threw exception: "'.$e->getMessage().'"', DEVLOG_SEVERITY_ERROR); |
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return 1; |
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} |
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} else { |
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if ((TYPO3_REQUESTTYPE & TYPO3_REQUESTTYPE_CLI) == FALSE) { |
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$message = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance( |
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\TYPO3\CMS\Core\Messaging\FlashMessage::class, |
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Helper::getMessage('flash.solrNoConnection', TRUE), |
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Helper::getMessage('flash.warning', TRUE), |
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\TYPO3\CMS\Core\Messaging\FlashMessage::WARNING, |
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TRUE |
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); |
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Helper::addMessage($message); |
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} |
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Helper::devLog('Could not connect to Apache Solr server', DEVLOG_SEVERITY_ERROR); |
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return 1; |
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} |
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} |
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/** |
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* Delete document from Solr index |
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* |
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* @access public |
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* |
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* @param integer $uid: UID of the document to delete |
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* |
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* @return integer 0 on success or 1 on failure |
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*/ |
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public static function delete($uid) { |
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// Save parameter for logging purposes. |
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$_uid = $uid; |
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// Sanitize input. |
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$uid = max(intval($uid), 0); |
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// Get Solr core for document. |
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$result = $GLOBALS['TYPO3_DB']->exec_SELECTquery( |
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'tx_dlf_solrcores.uid AS uid,tx_dlf_documents.title AS title', |
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'tx_dlf_solrcores,tx_dlf_documents', |
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'tx_dlf_solrcores.uid=tx_dlf_documents.solrcore' |
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.' AND tx_dlf_documents.uid='.$uid |
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.Helper::whereClause('tx_dlf_solrcores'), |
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'', |
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'', |
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'1' |
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); |
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if ($GLOBALS['TYPO3_DB']->sql_num_rows($result)) { |
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list ($core, $title) = $GLOBALS['TYPO3_DB']->sql_fetch_row($result); |
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// Establish Solr connection. |
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if (self::solrConnect($core)) { |
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try { |
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// Delete Solr document. |
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$updateQuery = self::$solr->service->createUpdate(); |
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$updateQuery->addDeleteQuery('uid:'.$uid); |
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$updateQuery->addCommit(); |
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self::$solr->service->update($updateQuery); |
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} catch (\Exception $e) { |
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if ((TYPO3_REQUESTTYPE & TYPO3_REQUESTTYPE_CLI) == FALSE) { |
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$message = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance( |
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\TYPO3\CMS\Core\Messaging\FlashMessage::class, |
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Helper::getMessage('flash.solrException', TRUE).'<br />'.htmlspecialchars($e->getMessage()), |
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Helper::getMessage('flash.error', TRUE), |
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\TYPO3\CMS\Core\Messaging\FlashMessage::ERROR, |
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TRUE |
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); |
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Helper::addMessage($message); |
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} |
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Helper::devLog('Apache Solr threw exception: "'.$e->getMessage().'"', DEVLOG_SEVERITY_ERROR); |
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return 1; |
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} |
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} else { |
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if ((TYPO3_REQUESTTYPE & TYPO3_REQUESTTYPE_CLI) == FALSE) { |
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$message = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance( |
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\TYPO3\CMS\Core\Messaging\FlashMessage::class, |
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Helper::getMessage('flash.solrNoConnection', TRUE), |
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Helper::getMessage('flash.error', TRUE), |
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\TYPO3\CMS\Core\Messaging\FlashMessage::ERROR, |
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TRUE |
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); |
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Helper::addMessage($message); |
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} |
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Helper::devLog('Could not connect to Apache Solr server', DEVLOG_SEVERITY_ERROR); |
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return 1; |
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} |
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if ((TYPO3_REQUESTTYPE & TYPO3_REQUESTTYPE_CLI) == FALSE) { |
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$message = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance( |
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\TYPO3\CMS\Core\Messaging\FlashMessage::class, |
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htmlspecialchars(sprintf(Helper::getMessage('flash.documentDeleted'), $title, $uid)), |
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Helper::getMessage('flash.done', TRUE), |
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\TYPO3\CMS\Core\Messaging\FlashMessage::OK, |
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TRUE |
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); |
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Helper::addMessage($message); |
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} |
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return 0; |
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} else { |
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Helper::devLog('Invalid UID '.$uid.' for document deletion', DEVLOG_SEVERITY_ERROR); |
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return 1; |
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} |
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} |
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/** |
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* Returns the dynamic index field name for the given metadata field. |
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* |
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* @access public |
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* |
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* @param string $index_name: The metadata field's name in database |
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* @param integer $pid: UID of the configuration page |
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* |
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* @return string The field's dynamic index name |
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*/ |
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public static function getIndexFieldName($index_name, $pid = 0) { |
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// Save parameter for logging purposes. |
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$_pid = $pid; |
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// Sanitize input. |
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$pid = max(intval($pid), 0); |
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if (!$pid) { |
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Helper::devLog('Invalid PID '.$pid.' for metadata configuration', DEVLOG_SEVERITY_ERROR); |
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return ''; |
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} |
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// Load metadata configuration. |
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self::loadIndexConf($pid); |
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// Build field's suffix. |
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$suffix = (in_array($index_name, self::$fields['tokenized']) ? 't' : 'u'); |
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$suffix .= (in_array($index_name, self::$fields['stored']) ? 's' : 'u'); |
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$suffix .= (in_array($index_name, self::$fields['indexed']) ? 'i' : 'u'); |
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$index_name .= '_'.$suffix; |
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return $index_name; |
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} |
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/** |
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* Load indexing configuration |
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* |
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* @access protected |
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* |
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* @param integer $pid: The configuration page's UID |
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* |
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* @return void |
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*/ |
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protected static function loadIndexConf($pid) { |
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if (!self::$fieldsLoaded) { |
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// Get the metadata indexing options. |
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$result = $GLOBALS['TYPO3_DB']->exec_SELECTquery( |
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'tx_dlf_metadata.index_name AS index_name,tx_dlf_metadata.index_tokenized AS index_tokenized,tx_dlf_metadata.index_stored AS index_stored,tx_dlf_metadata.index_indexed AS index_indexed,tx_dlf_metadata.is_sortable AS is_sortable,tx_dlf_metadata.is_facet AS is_facet,tx_dlf_metadata.is_listed AS is_listed,tx_dlf_metadata.index_autocomplete AS index_autocomplete,tx_dlf_metadata.index_boost AS index_boost', |
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'tx_dlf_metadata', |
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'tx_dlf_metadata.pid='.intval($pid) |
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.Helper::whereClause('tx_dlf_metadata'), |
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'', |
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'', |
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'' |
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); |
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while ($indexing = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($result)) { |
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if ($indexing['index_tokenized']) { |
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self::$fields['tokenized'][] = $indexing['index_name']; |
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} |
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if ($indexing['index_stored'] |
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|| $indexing['is_listed']) { |
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self::$fields['stored'][] = $indexing['index_name']; |
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} |
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if ($indexing['index_indexed'] |
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|| $indexing['index_autocomplete']) { |
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self::$fields['indexed'][] = $indexing['index_name']; |
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} |
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if ($indexing['is_sortable']) { |
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self::$fields['sortables'][] = $indexing['index_name']; |
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} |
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if ($indexing['is_facet']) { |
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self::$fields['facets'][] = $indexing['index_name']; |
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} |
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if ($indexing['index_autocomplete']) { |
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self::$fields['autocomplete'][] = $indexing['index_name']; |
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} |
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if ($indexing['index_boost'] > 0.0) { |
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self::$fields['fieldboost'][$indexing['index_name']] = floatval($indexing['index_boost']); |
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} else { |
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self::$fields['fieldboost'][$indexing['index_name']] = FALSE; |
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} |
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} |
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self::$fieldsLoaded = TRUE; |
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} |
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} |
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/** |
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* Processes a logical unit (and its children) for the Solr index |
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* |
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* @access protected |
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* |
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* @param \Kitodo\Dlf\Common\Document &$doc: The METS document |
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* @param array $logicalUnit: Array of the logical unit to process |
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* |
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* @return integer 0 on success or 1 on failure |
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*/ |
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protected static function processLogical(Document &$doc, array $logicalUnit) { |
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$errors = 0; |
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// Get metadata for logical unit. |
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$metadata = $doc->metadataArray[$logicalUnit['id']]; |
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if (!empty($metadata)) { |
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// Create new Solr document. |
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$updateQuery = self::$solr->service->createUpdate(); |
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$solrDoc = $updateQuery->createDocument(); |
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// Create unique identifier from document's UID and unit's XML ID. |
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$solrDoc->setField('id', $doc->uid.$logicalUnit['id']); |
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$solrDoc->setField('uid', $doc->uid); |
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$solrDoc->setField('pid', $doc->pid); |
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if (\TYPO3\CMS\Core\Utility\MathUtility::canBeInterpretedAsInteger($logicalUnit['points'])) { |
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$solrDoc->setField('page', $logicalUnit['points']); |
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} |
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if ($logicalUnit['id'] == $doc->toplevelId) { |
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$solrDoc->setField('thumbnail', $doc->thumbnail); |
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} elseif (!empty($logicalUnit['thumbnailId'])) { |
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$solrDoc->setField('thumbnail', $doc->getFileLocation($logicalUnit['thumbnailId'])); |
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} |
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$solrDoc->setField('partof', $doc->parentId); |
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$solrDoc->setField('root', $doc->rootId); |
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$solrDoc->setField('sid', $logicalUnit['id']); |
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// There can be only one toplevel unit per UID, independently of backend configuration |
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$solrDoc->setField('toplevel', $logicalUnit['id'] == $doc->toplevelId ? TRUE : FALSE); |
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$solrDoc->setField('type', $logicalUnit['type'], self::$fields['fieldboost']['type']); |
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$solrDoc->setField('title', $metadata['title'][0], self::$fields['fieldboost']['title']); |
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$solrDoc->setField('volume', $metadata['volume'][0], self::$fields['fieldboost']['volume']); |
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$solrDoc->setField('record_id', $metadata['record_id'][0]); |
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$solrDoc->setField('purl', $metadata['purl'][0]); |
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$solrDoc->setField('location', $doc->location); |
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$solrDoc->setField('urn', $metadata['urn']); |
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$solrDoc->setField('collection', $doc->metadataArray[$doc->toplevelId]['collection']); |
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$autocomplete = []; |
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foreach ($metadata as $index_name => $data) { |
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if (!empty($data) |
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&& substr($index_name, -8) !== '_sorting') { |
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$solrDoc->setField(self::getIndexFieldName($index_name, $doc->pid), $data, self::$fields['fieldboost'][$index_name]); |
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if (in_array($index_name, self::$fields['sortables'])) { |
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// Add sortable fields to index. |
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$solrDoc->setField($index_name.'_sorting', $metadata[$index_name.'_sorting'][0]); |
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} |
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if (in_array($index_name, self::$fields['facets'])) { |
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// Add facets to index. |
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$solrDoc->setField($index_name.'_faceting', $data); |
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} |
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if (in_array($index_name, self::$fields['autocomplete'])) { |
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$autocomplete = array_merge($autocomplete, $data); |
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} |
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} |
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} |
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// Add autocomplete values to index. |
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if (!empty($autocomplete)) { |
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$solrDoc->setField('autocomplete', $autocomplete); |
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} |
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// Add collection information to logical sub-elements if applicable. |
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if (in_array('collection', self::$fields['facets']) |
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&& empty($metadata['collection']) |
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&& !empty($doc->metadataArray[$doc->toplevelId]['collection'])) { |
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$solrDoc->setField('collection_faceting', $doc->metadataArray[$doc->toplevelId]['collection']); |
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} |
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try { |
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$updateQuery->addDocument($solrDoc); |
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self::$solr->service->update($updateQuery); |
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} catch (\Exception $e) { |
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if ((TYPO3_REQUESTTYPE & TYPO3_REQUESTTYPE_CLI) == FALSE) { |
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$message = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance( |
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\TYPO3\CMS\Core\Messaging\FlashMessage::class, |
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Helper::getMessage('flash.solrException', TRUE).'<br />'.htmlspecialchars($e->getMessage()), |
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Helper::getMessage('flash.error', TRUE), |
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\TYPO3\CMS\Core\Messaging\FlashMessage::ERROR, |
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TRUE |
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); |
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Helper::addMessage($message); |
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} |
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return 1; |
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} |
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} |
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// Check for child elements... |
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if (!empty($logicalUnit['children'])) { |
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foreach ($logicalUnit['children'] as $child) { |
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if (!$errors) { |
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// ...and process them, too. |
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$errors = self::processLogical($doc, $child); |
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} else { |
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break; |
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} |
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} |
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} |
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return $errors; |
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} |
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|
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/** |
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* Processes a physical unit for the Solr index |
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* |
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* @access protected |
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* |
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* @param \Kitodo\Dlf\Common\Document &$doc: The METS document |
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* @param integer $page: The page number |
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* @param array $physicalUnit: Array of the physical unit to process |
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* |
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* @return integer 0 on success or 1 on failure |
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*/ |
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protected static function processPhysical(Document &$doc, $page, array $physicalUnit) { |
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$errors = 0; |
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// Read extension configuration. |
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$extConf = unserialize($GLOBALS['TYPO3_CONF_VARS']['EXT']['extConf'][self::$extKey]); |
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if (!empty($physicalUnit['files'][$extConf['fileGrpFulltext']])) { |
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$file = $doc->getFileLocation($physicalUnit['files'][$extConf['fileGrpFulltext']]); |
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// Load XML file. |
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if (\TYPO3\CMS\Core\Utility\GeneralUtility::isValidUrl($file)) { |
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// Set user-agent to identify self when fetching XML data. |
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if (!empty($extConf['useragent'])) { |
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@ini_set('user_agent', $extConf['useragent']); |
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} |
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// Turn off libxml's error logging. |
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$libxmlErrors = libxml_use_internal_errors(TRUE); |
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// disable entity loading |
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$previousValueOfEntityLoader = libxml_disable_entity_loader(TRUE); |
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// Load XML from file. |
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$xml = simplexml_load_string(\TYPO3\CMS\Core\Utility\GeneralUtility::getUrl($file)); |
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// reset entity loader setting |
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libxml_disable_entity_loader($previousValueOfEntityLoader); |
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// Reset libxml's error logging. |
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libxml_use_internal_errors($libxmlErrors); |
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if ($xml === FALSE) { |
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return 1; |
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} |
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} else { |
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return 1; |
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} |
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// Create new Solr document. |
|
$updateQuery = self::$solr->service->createUpdate(); |
|
$solrDoc = $updateQuery->createDocument(); |
|
// Create unique identifier from document's UID and unit's XML ID. |
|
$solrDoc->setField('id', $doc->uid.$physicalUnit['id']); |
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$solrDoc->setField('uid', $doc->uid); |
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$solrDoc->setField('pid', $doc->pid); |
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$solrDoc->setField('page', $page); |
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if (!empty($physicalUnit['files'][$extConf['fileGrpThumbs']])) { |
|
$solrDoc->setField('thumbnail', $doc->getFileLocation($physicalUnit['files'][$extConf['fileGrpThumbs']])); |
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} |
|
$solrDoc->setField('partof', $doc->parentId); |
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$solrDoc->setField('root', $doc->rootId); |
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$solrDoc->setField('sid', $physicalUnit['id']); |
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$solrDoc->setField('toplevel', FALSE); |
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$solrDoc->setField('type', $physicalUnit['type'], self::$fields['fieldboost']['type']); |
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$solrDoc->setField('collection', $doc->metadataArray[$doc->toplevelId]['collection']); |
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$solrDoc->setField('fulltext', $doc->getRawText($physicalUnit['id'])); |
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// Add faceting information to physical sub-elements if applicable. |
|
foreach ($doc->metadataArray[$doc->toplevelId] as $index_name => $data) { |
|
if (!empty($data) |
|
&& substr($index_name, -8) !== '_sorting') { |
|
if (in_array($index_name, self::$fields['facets'])) { |
|
// Add facets to index. |
|
$solrDoc->setField($index_name.'_faceting', $data); |
|
} |
|
} |
|
} |
|
// Add collection information to physical sub-elements if applicable. |
|
if (in_array('collection', self::$fields['facets']) |
|
&& !empty($doc->metadataArray[$doc->toplevelId]['collection'])) { |
|
$solrDoc->setField('collection_faceting', $doc->metadataArray[$doc->toplevelId]['collection']); |
|
} |
|
try { |
|
$updateQuery->addDocument($solrDoc); |
|
self::$solr->service->update($updateQuery); |
|
} catch (\Exception $e) { |
|
if ((TYPO3_REQUESTTYPE & TYPO3_REQUESTTYPE_CLI) == FALSE) { |
|
$message = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance( |
|
\TYPO3\CMS\Core\Messaging\FlashMessage::class, |
|
Helper::getMessage('flash.solrException', TRUE).'<br />'.htmlspecialchars($e->getMessage()), |
|
Helper::getMessage('flash.error', TRUE), |
|
\TYPO3\CMS\Core\Messaging\FlashMessage::ERROR, |
|
TRUE |
|
); |
|
Helper::addMessage($message); |
|
} |
|
return 1; |
|
} |
|
} |
|
return $errors; |
|
} |
|
|
|
/** |
|
* Connects to Solr server. |
|
* |
|
* @access protected |
|
* |
|
* @param integer $core: UID of the Solr core |
|
* @param integer $pid: UID of the configuration page |
|
* |
|
* @return boolean TRUE on success or FALSE on failure |
|
*/ |
|
protected static function solrConnect($core, $pid = 0) { |
|
// Get Solr instance. |
|
if (!self::$solr) { |
|
// Connect to Solr server. |
|
if (self::$solr = Solr::getInstance($core)) { |
|
// Load indexing configuration if needed. |
|
if ($pid) { |
|
self::loadIndexConf($pid); |
|
} |
|
} else { |
|
return FALSE; |
|
} |
|
} |
|
return TRUE; |
|
} |
|
|
|
/** |
|
* This is a static class, thus no instances should be created |
|
* |
|
* @access private |
|
*/ |
|
private function __construct() |
|
{} |
|
}
|
|
|