search_core/Classes/Domain/Index/AbstractIndexer.php

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<?php
namespace Codappix\SearchCore\Domain\Index;
/*
* Copyright (C) 2017 Daniel Siepmann <coding@daniel-siepmann.de>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
use Codappix\SearchCore\Configuration\ConfigurationContainerInterface;
use Codappix\SearchCore\Configuration\InvalidArgumentException;
use Codappix\SearchCore\Connection\ConnectionInterface;
use Codappix\SearchCore\DataProcessing\ProcessorInterface;
use TYPO3\CMS\Core\Utility\GeneralUtility;
abstract class AbstractIndexer implements IndexerInterface
{
/**
* @var ConnectionInterface
*/
protected $connection;
/**
* @var ConfigurationContainerInterface
*/
protected $configuration;
/**
* @var string
*/
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protected $identifier = '';
/**
* @var \TYPO3\CMS\Core\Log\Logger
*/
protected $logger;
/**
* Inject log manager to get concrete logger from it.
*
* @param \TYPO3\CMS\Core\Log\LogManager $logManager
*/
public function injectLogger(\TYPO3\CMS\Core\Log\LogManager $logManager)
{
$this->logger = $logManager->getLogger(__CLASS__);
}
public function setIdentifier($identifier)
{
$this->identifier = $identifier;
}
/**
* @param ConnectionInterface $connection
* @param ConfigurationContainerInterface $configuration
*/
public function __construct(ConnectionInterface $connection, ConfigurationContainerInterface $configuration)
{
$this->connection = $connection;
$this->configuration = $configuration;
}
public function indexAllDocuments()
{
$this->logger->info('Start indexing');
foreach ($this->getRecordGenerator() as $records) {
if ($records === null) {
break;
}
foreach ($records as &$record) {
$this->prepareRecord($record);
}
$this->logger->debug('Index records.', [$records]);
$this->connection->addDocuments($this->getDocumentName(), $records);
}
$this->logger->info('Finish indexing');
}
public function indexDocument($identifier)
{
$this->logger->info('Start indexing single record.', [$identifier]);
try {
$record = $this->getRecord($identifier);
$this->prepareRecord($record);
$this->connection->addDocument($this->getDocumentName(), $record);
} catch (NoRecordFoundException $e) {
$this->logger->info('Could not index document. Try to delete it therefore.', [$e->getMessage()]);
$this->connection->deleteDocument($this->getDocumentName(), $identifier);
}
$this->logger->info('Finish indexing');
}
public function delete()
{
$this->logger->info('Start deletion of index.');
$this->connection->deleteIndex($this->getDocumentName());
$this->logger->info('Finish deletion.');
}
/**
* @return \Generator
*/
protected function getRecordGenerator()
{
$offset = 0;
$limit = $this->getLimit();
while (($records = $this->getRecords($offset, $limit)) !== []) {
yield $records;
$offset += $limit;
}
}
/**
* @param array &$record
*/
protected function prepareRecord(array &$record)
{
try {
foreach ($this->configuration->get('indexing.' . $this->identifier . '.dataProcessing') as $configuration) {
$className = '';
if (is_string($configuration)) {
$className = $configuration;
$configuration = [];
} else {
$className = $configuration['_typoScriptNodeValue'];
}
$dataProcessor = GeneralUtility::makeInstance($className);
if ($dataProcessor instanceof ProcessorInterface) {
$record = $dataProcessor->processRecord($record, $configuration);
}
}
} catch (InvalidArgumentException $e) {
// Nothing to do.
}
$this->handleAbstract($record);
}
/**
* @param array &$record
*/
protected function handleAbstract(array &$record)
{
$record['search_abstract'] = '';
try {
$fieldsToUse = GeneralUtility::trimExplode(
',',
$this->configuration->get('indexing.' . $this->identifier . '.abstractFields')
);
if (!$fieldsToUse) {
return;
}
foreach ($fieldsToUse as $fieldToUse) {
if (isset($record[$fieldToUse]) && trim($record[$fieldToUse])) {
$record['search_abstract'] = trim($record[$fieldToUse]);
break;
}
}
} catch (InvalidArgumentException $e) {
return;
}
}
/**
* Returns the limit to use to fetch records.
*
* @return int
*/
protected function getLimit()
{
// TODO: Make configurable.
return 50;
}
/**
* @param int $offset
* @param int $limit
* @return array|null
*/
abstract protected function getRecords($offset, $limit);
/**
* @param int $identifier
* @return array
* @throws NoRecordFoundException If record could not be found.
*/
abstract protected function getRecord($identifier);
/**
* @return string
*/
abstract protected function getDocumentName();
}