ApacheSolrForTypo3\Solr\System\Configuration\TypoScriptConfiguration

Complexity

Total Complexity

194

Size/Duplication

Total Lines	2309
Duplicated Lines	0 %

Test Coverage

Coverage

84.1%

Importance

Changes

0

144 Methods

Rating	Name	Duplication	Size	Complexity
A	getSearchFacetingCountAllFacetsForSelection()	0	4	1
A	getSearchVariantsField()	0	3	1
A	getSearchFrequentSearchesMaxSize()	0	4	1
A	setSearchQueryFilterConfiguration()	0	3	1
A	getSearchVariantsLimit()	0	4	1
A	getSearchQueryBigramPhraseFields()	0	3	1
A	getSuggest()	0	4	1
B	getEnabledIndexQueueConfigurationNames()	0	12	5
A	getPhraseSearchIsEnabled()	0	4	1
A	getViewHelpersCropConfiguration()	0	4	1
A	getSearchFrequentSearchesMinSize()	0	4	1
A	getLoggingIndexingIndexQueueInitialization()	0	4	1
A	getLoggingIndexingQueue()	0	4	1
A	getLoggingQueryRawPost()	0	4	1
A	getSearchConfiguration()	0	4	1
A	getBigramPhraseSearchIsEnabled()	0	4	1
A	getSearchTargetPageConfiguration()	0	4	1
A	getSearchShowResultsOfInitialQuery()	0	4	1
A	getSearchQueryPhraseFields()	0	3	1
A	getStatisticsAddDebugData()	0	4	1
A	getLoggingExceptions()	0	4	1
A	getSearchFrequentSearches()	0	4	1
A	getSearchTargetPage()	0	9	2
A	renderContentElementOfConfigured()	0	10	2
A	getIndexQueueAdditionalPageIdsByConfigurationName()	0	9	2
A	removeSearchQueryFilterForPageSections()	0	3	1
A	getSearchFacetingFacetLinkUrlParametersAsArray()	0	8	2
A	getStatistics()	0	4	1
A	getSearchSortingFixedOrderBySortOptionName()	0	4	1
A	getSearchGroupingResultLimit()	0	16	3
A	getSearchQueryFilterConfiguration()	0	4	1
A	getSearchFacetingFacetLinkUrlParametersUseForFacetResetLinkUrl()	0	4	1
A	__construct()	0	5	2
A	getSolrUsername()	0	5	1
A	getSearchFacetingKeepAllFacetsOnSelection()	0	4	1
A	getSearchKeepExistingParametersForNewSearches()	0	4	1
A	getIndexQueueInitializerClassByConfigurationName()	0	6	1
A	getIndexQueueIndexerConfigurationByConfigurationName()	0	5	1
A	getObjectByPath()	0	12	3
A	getIndexQueueAllowedPageTypesArrayByConfigurationName()	0	9	2
C	getIndexQueueConfigurationNamesByTableName()	0	22	8
A	getIndexQueueIndexerByConfigurationName()	0	5	1
A	getStatisticsAnonymizeIP()	0	4	1
A	getSearchFacetingFacetByName()	0	3	1
A	mergeSolrConfiguration()	0	14	1
A	getSearchFacetingFacetLimit()	0	3	1
A	getIndexQueuePagesExcludeContentByClassArray()	0	10	2
A	getSearchLastSearchesLimit()	0	4	1
A	getSearchSortingOptionsConfiguration()	0	4	1
A	getLoggingQuerySearchWords()	0	4	1
A	getSearchSpellcheckingNumberOfSuggestionsToTry()	0	3	1
A	getSearchFacetingLimit()	0	3	1
A	getSearchResultsPerPage()	0	3	1
A	getSearchTrustedFieldsArray()	0	9	2
A	getEnableCommits()	0	4	1
A	getSearchResultsPerPageSwitchOptionsAsArray()	0	9	2
A	getSuggestNumberOfTopResults()	0	4	1
A	getLoggingQueryRawDelete()	0	4	1
A	getSearchSortingDefaultOrderBySortOptionName()	0	14	2
A	getSearchGroupingNumberOfGroups()	0	3	1
A	getSearchIgnoreGlobalQParameter()	0	4	1
A	getSearchQueryReturnFieldsAsArray()	0	8	2
A	getIndexAdditionalFieldsConfiguration()	0	4	1
A	getSearchFacetingShowAllLinkWrap()	0	3	1
A	getSearchPluginNamespace()	0	3	1
A	getLoggingIndexingQueueOperationsByConfigurationNameWithFallBack()	0	15	3
A	getIndexMappedAdditionalFieldNames()	0	5	2
A	getSearchElevation()	0	4	1
A	getEnabled()	0	5	1
A	getIndexQueueFieldsConfigurationByConfigurationName()	0	5	1
A	getSolrPassword()	0	5	1
A	getSolrHasConnectionConfiguration()	0	4	2
A	getBool()	0	3	1
A	getSearchSpellcheckingWrap()	0	3	1
A	getIndexQueueIsMonitoredTable()	0	3	1
A	getSolrScheme()	0	5	1
A	getSolrPath()	0	10	1
A	getSearchGroupingGroupsConfiguration()	0	3	1
A	getSearchSpellchecking()	0	4	1
A	getSearchFrequentSearchesUseLowercaseKeywords()	0	4	1
A	getSearchFacetingFacetLinkUrlParameters()	0	5	1
A	getIndexQueueConfigurationRecursiveUpdateFields()	0	10	2
A	getSolrPort()	0	5	1
A	getIndexFieldProcessingInstructionsConfiguration()	0	4	1
A	getSearchSorting()	0	4	1
A	getAvailableTemplatesByFileKey()	0	4	1
A	getOnlyArrayKeysWhereValueIsNotAnArray()	0	14	3
A	getIndexQueueConfigurationByName()	0	5	1
A	getLoggingIndexing()	0	4	1
A	getLocalLangConfiguration()	0	4	1
A	getViewHelpersSortIndicatorConfiguration()	0	4	1
A	getSearchVariants()	0	4	1
A	getSuggestNumberOfSuggestions()	0	4	1
A	getSearchShowResultsOfInitialEmptyQuery()	0	4	1
A	getSuggestForceHttps()	0	4	1
A	getSearchFacetingSortBy()	0	3	1
A	getSearchResultsHighlightingFields()	0	3	1
A	getSuggestShowTopResults()	0	4	1
A	getLoggingQueryFilters()	0	4	1
A	getTrigramPhraseSearchIsEnabled()	0	4	1
A	getIndexQueueAdditionalWhereClauseByConfigurationName()	0	10	2
A	getIndexQueueConfigurationIsEnabled()	0	5	1
A	getSearchFacetingFacets()	0	3	1
A	getSearchFacetingMinimumCount()	0	3	1
A	getSearchInitializeWithEmptyQuery()	0	4	1
A	getSearchElevationForceElevation()	0	4	1
A	getSearchVariantsExpand()	0	4	1
A	getSearchLastSearchesMode()	0	4	1
A	getIndexQueueMonitoredTables()	0	15	3
A	getSearchFrequentSearchesConfiguration()	0	4	1
A	getSearchInitializeWithQuery()	0	4	1
A	getIndexQueueMappedFieldsByConfigurationName()	0	5	2
A	getSearchFacetingShowEmptyFacetsByName()	0	14	2
A	getValueByPath()	0	7	2
A	getSearchResultsHighlightingFieldsAsArray()	0	9	2
A	getValueByPathOrDefaultValue()	0	8	2
A	getSolrHost()	0	5	1
A	getLoggingIndexingMissingTypo3SearchMarkers()	0	4	1
A	getSearchSpellcheckingSearchUsingSpellCheckerSuggestion()	0	4	1
A	getLoggingIndexingPageIndexed()	0	4	1
A	getEnabledDebugMode()	0	4	1
A	getObjectByPathOrDefault()	0	13	3
B	getSearchGroupingHighestGroupResultsLimit()	0	20	6
A	getLoggingQueryQueryString()	0	4	1
A	getSearchResultsHighlightingFragmentSize()	0	3	1
A	getViewTemplateByFileKey()	0	4	1
A	getSolrTimeout()	0	3	1
A	getSearchGrouping()	0	4	1
A	getLoggingDebugOutput()	0	4	1
A	getSearchQueryAllowEmptyQuery()	0	4	1
A	getSearchResultsSiteHighlighting()	0	4	1
A	getInitialPagesAdditionalWhereClause()	0	10	2
A	getSearchElevationMarkElevatedResults()	0	4	1
A	getSearchResultsHighlightingWrap()	0	3	1
A	getIndexQueueTableNameOrFallbackToConfigurationName()	0	5	1
A	getSearchResultsHighlightingFragmentSeparator()	0	3	1
A	getSearchLastSearches()	0	4	1
A	getSearchFacetingSingleFacetMode()	0	4	1
A	getSearchResultsHighlighting()	0	4	1
A	getSearchQueryTrigramPhraseFields()	0	3	1
A	getLoggingQueryRawGet()	0	4	1
A	getSearchQueryQueryFields()	0	3	1
A	getSearchFaceting()	0	4	1
A	isValidPath()	0	10	2

<?php
namespace ApacheSolrForTypo3\Solr\System\Configuration;

/***************************************************************
 *  Copyright notice
 *
 *  (c) 2016 Timo Schmidt <timo.schmidt@dkd.de>
 *  All rights reserved
 *
 *  This script is part of the TYPO3 project. The TYPO3 project 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 3 of the License, or
 *  (at your option) any later version.
 *
 *  The GNU General Public License can be found at
 *  http://www.gnu.org/copyleft/gpl.html.
 *  A copy is found in the textfile GPL.txt and important notices to the license
 *  from the author is found in LICENSE.txt distributed with these scripts.
 *
 *
 *  This script 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.
 *
 *  This copyright notice MUST APPEAR in all copies of the script!
 ***************************************************************/

use ApacheSolrForTypo3\Solr\IndexQueue\Indexer;
use ApacheSolrForTypo3\Solr\IndexQueue\Initializer\Record;
use ApacheSolrForTypo3\Solr\System\ContentObject\ContentObjectService;
use ApacheSolrForTypo3\Solr\System\Util\ArrayAccessor;
use InvalidArgumentException;
use TYPO3\CMS\Core\Utility\ArrayUtility;
use TYPO3\CMS\Core\Utility\GeneralUtility;

/**
 * TypoScript configuration object, used to read all TypoScript configuration.
 *
 * The TypoScriptConfiguration was introduced in order to be able to replace the old,
 * array based configuration with one configuration object.
 *
 * To read the configuration, you should use
 *
 * $configuration->getValueByPath
 *
 * or
 *
 * $configuration->isValidPath
 *
 * to check if an configuration path exists.
 *
 * To ensure Backwards compatibility the TypoScriptConfiguration object implements the
 * ArrayAccess interface (offsetGet,offsetExists,offsetUnset and offsetSet)
 *
 * This was only introduced to be backwards compatible in logTerm only "getValueByPath", "isValidPath" or
 * speaking methods for configuration settings should be used!
 *
 * @author Marc Bastian Heinrichs <mbh@mbh-software.de>
 * @author Timo Schmidt <timo.schmidt@dkd.de>
 */
class TypoScriptConfiguration
{
    /**
     * @var \ApacheSolrForTypo3\Solr\System\Util\ArrayAccessor|null
     */
    protected $configurationAccess = null;

    /**
     * Holds the pageId in which context the configuration was parsed
     * (normally $GLOBALS['TSFE']->id)
     */
    protected $contextPageId = 0;

    /**
     * @var ContentObjectService
     */
    protected $contentObjectService;

    /**
     * @param array $configuration
     * @param int $contextPageId
     * @param ContentObjectService $contentObjectService
     */
    public function __construct(array $configuration, $contextPageId = 0, ContentObjectService $contentObjectService = null)
    {
        $this->configurationAccess = new ArrayAccessor($configuration, '.', true);
        $this->contextPageId = $contextPageId;
        $this->contentObjectService = is_null($contentObjectService) ? GeneralUtility::makeInstance(ContentObjectService::class) : $contentObjectService;
    }

    /**
     * Checks if a value is 1, '1', 'true'
     * @param mixed $value
     * @return bool
     */
    protected function getBool($value)
    {
        return filter_var($value, FILTER_VALIDATE_BOOLEAN);
    }

    /**
     * This method can be used to only retrieve array keys where the value is not an array.
     *
     * This can be very handy in the configuration when only keys should ne taken into account
     * where the value is not a subconfiguration (typically an typoscript object path).
     *
     * @param $inputArray
     * @return array
     */
    protected function getOnlyArrayKeysWhereValueIsNotAnArray($inputArray)
    {
        $keysWithNonArrayValue = [];

        foreach ($inputArray as $key => $value) {
            if (is_array($value)) {
                // configuration for a content object, skipping
                continue;
            }

            $keysWithNonArrayValue[] = $key;
        }

        return $keysWithNonArrayValue;
    }

    /**
     * Gets the value from a given TypoScript path.
     *
     * In the context of an frontend content element the path plugin.tx_solr is
     * merged recursive with overrule with the content element specific typoscript
     * settings, like plugin.tx_solr_PiResults_Results, and possible flex form settings
     * (depends on the solr plugin).
     *
     * Example: plugin.tx_solr.search.targetPage
     * returns $GLOBALS['TSFE']->tmpl->setup['plugin.']['tx_solr.']['search.']['targetPage']
     *
     * @param string $path TypoScript path
     * @return mixed The TypoScript object defined by the given path
     * @throws InvalidArgumentException
     */
    public function getValueByPath($path)
    {
        if (!is_string($path)) {

The condition ! is_string($path) can never be true.

            throw new InvalidArgumentException('Parameter $path is not a string',
                1325623321);
        }
        return $this->configurationAccess->get($path);

The method get() does not exist on null.

    }

    /**
     * This method can be used to get  a configuration value by path if it exists or return a
     * default value when it does not exist.
     *
     * @param string $path
     * @param mixed $defaultValue
     * @return mixed
     */
    public function getValueByPathOrDefaultValue($path, $defaultValue)
    {
        $value = $this->getValueByPath($path);
        if (is_null($value)) {
            return $defaultValue;
        }

        return $value;
    }

    /**
     * Gets the parent TypoScript Object from a given TypoScript path.
     *
     * In the context of an frontend content element the path plugin.tx_solr is
     * merged recursive with overrule with the content element specific typoscript
     * settings, like plugin.tx_solr_PiResults_Results, and possible flex form settings
     * (depends on the solr plugin).
     *
     * Example: plugin.tx_solr.index.queue.tt_news.fields.content
     * returns $GLOBALS['TSFE']->tmpl->setup['plugin.']['tx_solr.']['index.']['queue.']['tt_news.']['fields.']['content.']
     * which is a SOLR_CONTENT cObj.
     *
     * @param string $path TypoScript path
     * @return array The TypoScript object defined by the given path
     * @throws InvalidArgumentException
     */
    public function getObjectByPath($path)
    {
        if (substr($path, -1) !== '.') {
            $path = rtrim($path, '.');
            $path = substr($path, 0, strrpos($path, '.') + 1);
        }

        if (!is_string($path)) {

The condition ! is_string($path) can never be true.

            throw new InvalidArgumentException('Parameter $path is not a string', 1325627243);
        }

        return $this->configurationAccess->get($path);
    }

    /**
     * Gets the parent TypoScript Object from a given TypoScript path and if not present return
     * the default value
     *
     * @see getObjectByPath
     * @param string $path
     * @param array $defaultValue
     * @return array
     */
    public function getObjectByPathOrDefault($path, array $defaultValue)
    {
        try {
            $object = $this->getObjectByPath($path);
        } catch (\InvalidArgumentException $e) {
            return $defaultValue;
        }

        if (!is_array($object)) {

The condition ! is_array($object) can never be true.

            return $defaultValue;
        }

        return $object;
    }

    /**
     * Checks whether a given TypoScript path is valid.
     *
     * @param string $path TypoScript path
     * @return bool TRUE if the path resolves, FALSE otherwise
     */
    public function isValidPath($path)
    {
        $isValidPath = false;

        $pathValue = $this->getValueByPath($path);
        if (!is_null($pathValue)) {
            $isValidPath = true;
        }

        return $isValidPath;
    }

    /**
     * Merges a configuration with another configuration a
     *
     * @param array $configurationToMerge
     * @param bool $addKeys If set to FALSE, keys that are NOT found in $original will not be set. Thus only existing value can/will be overruled from overrule array.
     * @param bool $includeEmptyValues If set, values from $overrule will overrule if they are empty or zero.
     * @param bool $enableUnsetFeature If set, special values "__UNSET" can be used in the overrule array in order to unset array keys in the original array.
     * @return TypoScriptConfiguration
     */
    public function mergeSolrConfiguration(array $configurationToMerge, $addKeys = true, $includeEmptyValues = true, $enableUnsetFeature = true)
    {
        $data = $this->configurationAccess->getData();
        ArrayUtility::mergeRecursiveWithOverrule(
            $data['plugin.']['tx_solr.'],
            $configurationToMerge,
            $addKeys,
            $includeEmptyValues,
            $enableUnsetFeature
        );

        $this->configurationAccess->setData($data);

        return $this;
    }

    /**
     * Returns true when ext_solr is enabled
     *
     * @param boolean $defaultIfEmpty
     * @return boolean
     */
    public function getEnabled($defaultIfEmpty = false)
    {
        $path = 'plugin.tx_solr.enabled';
        $result = $this->getValueByPathOrDefaultValue($path, $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Returns the configured additionalFields configured for the indexing.
     *
     * plugin.tx_solr.index.additionalFields.
     *
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getIndexAdditionalFieldsConfiguration($defaultIfEmpty = [])
    {
        $result = $this->getObjectByPathOrDefault('plugin.tx_solr.index.additionalFields.', $defaultIfEmpty);
        return $result;
    }

    /**
     * Returns all solr fields names where a mapping is configured in index.additionalFields
     *
     * Returns all keys from
     * plugin.tx_solr.index.additionalFields.
     *
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getIndexMappedAdditionalFieldNames($defaultIfEmpty = [])
    {
        $mappingConfiguration = $this->getIndexAdditionalFieldsConfiguration();
        $mappedFieldNames = $this->getOnlyArrayKeysWhereValueIsNotAnArray($mappingConfiguration);
        return count($mappedFieldNames) == 0 ? $defaultIfEmpty : $mappedFieldNames;
    }

    /**
     * Returns the fieldProcessingInstructions configuration array
     *
     * plugin.tx_solr.index.fieldProcessingInstructions.
     *
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getIndexFieldProcessingInstructionsConfiguration(array $defaultIfEmpty = [])
    {
        $result = $this->getObjectByPathOrDefault('plugin.tx_solr.index.fieldProcessingInstructions.', $defaultIfEmpty);
        return $result;
    }

    /**
     * Retrieves the indexing configuration array for an indexing queue by configuration name.
     *
     * plugin.tx_solr.index.queue.<configurationName>.
     *
     * @param string $configurationName
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getIndexQueueConfigurationByName($configurationName, array $defaultIfEmpty = [])
    {
        $path = 'plugin.tx_solr.index.queue.' . $configurationName . '.';
        $result = $this->getObjectByPathOrDefault($path, $defaultIfEmpty);
        return $result;
    }

    /**
     * Returns an array of all additionalPageIds by index configuration name.
     *
     * plugin.tx_solr.index.queue.pages.additionalPageIds
     *
     * @param string $configurationName
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getIndexQueueAdditionalPageIdsByConfigurationName($configurationName = 'pages', $defaultIfEmpty = [])
    {
        $path = 'plugin.tx_solr.index.queue.' . $configurationName . '.additionalPageIds';
        $result = $this->getValueByPathOrDefaultValue($path, '');
        if (trim($result) === '') {

It seems like $result can also be of type array; however, parameter $str of trim() does only seem to accept string, maybe add an additional type check?

            return $defaultIfEmpty;
        }

        return GeneralUtility::trimExplode(',', $result);

It seems like $result can also be of type array; however, parameter $string of TYPO3\CMS\Core\Utility\GeneralUtility::trimExplode() does only seem to accept string, maybe add an additional type check?

    }

    /**
     * Returns an array of all allowedPageTypes.
     *
     * plugin.tx_solr.index.queue.pages.allowedPageTypes
     *
     * @param string $configurationName The configuration name of the queue to use.
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getIndexQueueAllowedPageTypesArrayByConfigurationName($configurationName = 'pages', $defaultIfEmpty = [])
    {
        $path = 'plugin.tx_solr.index.queue.' . $configurationName . '.allowedPageTypes';
        $result = $this->getValueByPathOrDefaultValue($path, '');
        if (trim($result) === '') {

It seems like $result can also be of type array; however, parameter $str of trim() does only seem to accept string, maybe add an additional type check?

            return $defaultIfEmpty;
        }

        return GeneralUtility::trimExplode(',', $result);

It seems like $result can also be of type array; however, parameter $string of TYPO3\CMS\Core\Utility\GeneralUtility::trimExplode() does only seem to accept string, maybe add an additional type check?

    }

    /**
     * Returns the configured excludeContentByClass patterns as array.
     *
     * plugin.tx_solr.index.queue.pages.excludeContentByClass
     *
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getIndexQueuePagesExcludeContentByClassArray($defaultIfEmpty = [])
    {
        $path = 'plugin.tx_solr.index.queue.pages.excludeContentByClass';
        $result = $this->getValueByPathOrDefaultValue($path, '');

        if (trim($result) === '') {

It seems like $result can also be of type array; however, parameter $str of trim() does only seem to accept string, maybe add an additional type check?

            return $defaultIfEmpty;
        }

        return GeneralUtility::trimExplode(',', $result);

It seems like $result can also be of type array; however, parameter $string of TYPO3\CMS\Core\Utility\GeneralUtility::trimExplode() does only seem to accept string, maybe add an additional type check?

    }

    /**
     * Returns the configured database table for an indexing queue configuration or
     * the configurationName itself that is used by convention as tableName when no
     * other tablename is present.
     *
     * plugin.tx_solr.index.queue.<configurationName>.table or configurationName
     *
     * @param string $configurationName
     * @return string
     */
    public function getIndexQueueTableNameOrFallbackToConfigurationName($configurationName = '')
    {
        $path = 'plugin.tx_solr.index.queue.' . $configurationName . '.table';
        $result = $this->getValueByPathOrDefaultValue($path, $configurationName);
        return $result;

The expression return $result also could return the type array which is incompatible with the documented return type string.

    }

    /**
     * Returns the field configuration for a specific index queue.
     *
     * plugin.tx_solr.index.queue.<configurationName>.fields.
     *
     * @param string $configurationName
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getIndexQueueFieldsConfigurationByConfigurationName($configurationName = '', $defaultIfEmpty = [])
    {
        $path = 'plugin.tx_solr.index.queue.' . $configurationName . '.fields.';
        $result = $this->getObjectByPathOrDefault($path, $defaultIfEmpty);
        return $result;
    }

    /**
     * Gets an array of tables configured for indexing by the Index Queue. Since the
     * record monitor must watch these tables for manipulation.
     *
     * @return array Array of table names to be watched by the record monitor.
     */
    public function getIndexQueueMonitoredTables()
    {
        $monitoredTables = [];

        $indexingConfigurations = $this->getEnabledIndexQueueConfigurationNames();
        foreach ($indexingConfigurations as $indexingConfigurationName) {
            $monitoredTable = $this->getIndexQueueTableNameOrFallbackToConfigurationName($indexingConfigurationName);
            $monitoredTables[] = $monitoredTable;
            if ($monitoredTable === 'pages') {
                // when monitoring pages, also monitor creation of translations
                $monitoredTables[] = 'pages_language_overlay';
            }
        }

        return array_values(array_unique($monitoredTables));
    }

    /**
     * This method can be used to check if a table is configured to be monitored by the record monitor.
     *
     * @param string $tableName
     * @return bool
     */
    public function getIndexQueueIsMonitoredTable($tableName)
    {
        return in_array($tableName, $this->getIndexQueueMonitoredTables(), true);
    }

    /**
     * Returns the configured indexer class that should be used for a certain indexingConfiguration.
     * By default "ApacheSolrForTypo3\Solr\IndexQueue\Indexer" will be returned.
     *
     * plugin.tx_solr.index.queue.<configurationName>.indexer
     *
     * @param string $configurationName
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getIndexQueueIndexerByConfigurationName($configurationName, $defaultIfEmpty = Indexer::class)
    {
        $path = 'plugin.tx_solr.index.queue.' . $configurationName . '.indexer';
        $result = $this->getValueByPathOrDefaultValue($path, $defaultIfEmpty);
        return $result;

The expression return $result also could return the type array which is incompatible with the documented return type string.

    }

    /**
     * Returns the configuration of an indexer for a special indexingConfiguration. By default an empty
     * array is returned.
     *
     * plugin.tx_solr.index.queue.<configurationName>.indexer.
     *
     * @param string $configurationName
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getIndexQueueIndexerConfigurationByConfigurationName($configurationName, $defaultIfEmpty = [])
    {
        $path = 'plugin.tx_solr.index.queue.' . $configurationName . '.indexer.';
        $result = $this->getObjectByPathOrDefault($path, $defaultIfEmpty);
        return $result;
    }

    /**
     * Returns all solr fields names where a mapping configuration is set for a certain index configuration
     *
     * Returns all keys from
     * plugin.tx_solr.index.queue.<configurationName>.fields.
     *
     * @param string $configurationName
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getIndexQueueMappedFieldsByConfigurationName($configurationName = '', $defaultIfEmpty = [])
    {
        $mappingConfiguration = $this->getIndexQueueFieldsConfigurationByConfigurationName($configurationName);
        $mappedFieldNames = $this->getOnlyArrayKeysWhereValueIsNotAnArray($mappingConfiguration);
        return count($mappedFieldNames) == 0 ? $defaultIfEmpty : $mappedFieldNames;
    }

    /**
     * This method is used to check if an index queue configuration is enabled or not
     *
     * plugin.tx_solr.index.queue.<configurationName> = 1
     *
     * @param string $configurationName
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getIndexQueueConfigurationIsEnabled($configurationName, $defaultIfEmpty = false)
    {
        $path = 'plugin.tx_solr.index.queue.' . $configurationName;
        $result = $this->getValueByPathOrDefaultValue($path, $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Retrieves an array of enabled index queue configurations.
     *
     * plugin.tx_solr.index.queue.<configurationName>
     *
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getEnabledIndexQueueConfigurationNames($defaultIfEmpty = [])
    {
        $tablesToIndex = [];
        $path = 'plugin.tx_solr.index.queue.';
        $indexQueueConfiguration = $this->getObjectByPathOrDefault($path, []);
        foreach ($indexQueueConfiguration as $configurationName => $indexingEnabled) {
            if (substr($configurationName, -1) != '.' && $indexingEnabled) {
                $tablesToIndex[] = $configurationName;
            }
        }

        return count($tablesToIndex) == 0 ? $defaultIfEmpty : $tablesToIndex;
    }

    /**
     * Retrieves an array of additional fields that will trigger an recursive update of pages
     * when some of the fields on that page are modified.
     *
     * plugin.tx_solr.index.queue.recursiveUpdateFields
     *
     * @param string $configurationName
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getIndexQueueConfigurationRecursiveUpdateFields($configurationName, $defaultIfEmpty = [])
    {
        $path = 'plugin.tx_solr.index.queue.' . $configurationName . '.recursiveUpdateFields';
        $recursiveUpdateFieldsString = $this->getValueByPathOrDefaultValue($path, '');
        if (trim($recursiveUpdateFieldsString) === '') {

It seems like $recursiveUpdateFieldsString can also be of type array; however, parameter $str of trim() does only seem to accept string, maybe add an additional type check?

            return $defaultIfEmpty;
        }
        $recursiveUpdateFields = GeneralUtility::trimExplode(',', $recursiveUpdateFieldsString);

It seems like $recursiveUpdateFieldsString can also be of type array; however, parameter $string of TYPO3\CMS\Core\Utility\GeneralUtility::trimExplode() does only seem to accept string, maybe add an additional type check?

        // For easier check later on we return an array by combining $recursiveUpdateFields
        return array_combine($recursiveUpdateFields, $recursiveUpdateFields);
    }


    /**
     * Retrieves and initialPagesAdditionalWhereClause where clause when configured or an empty string.
     *
     * plugin.tx_solr.index.queue.<configurationName>.initialPagesAdditionalWhereClause
     *
     * @param string $configurationName
     * @return string
     */
    public function getInitialPagesAdditionalWhereClause($configurationName)
    {
        $path = 'plugin.tx_solr.index.queue.' . $configurationName . '.initialPagesAdditionalWhereClause';
        $initialPagesAdditionalWhereClause = $this->getValueByPathOrDefaultValue($path, '');

        if (trim($initialPagesAdditionalWhereClause) === '') {

It seems like $initialPagesAdditionalWhereClause can also be of type array; however, parameter $str of trim() does only seem to accept string, maybe add an additional type check?

            return '';
        }

        return ' AND ' . $initialPagesAdditionalWhereClause;

Are you sure $initialPagesAdditionalWhereClause of type string|array can be used in concatenation?

    }

    /**
     * Retrieves and additional where clause when configured or an empty string.
     *
     * plugin.tx_solr.index.queue.<configurationName>.additionalWhereClause
     *
     * @param string $configurationName
     * @return string
     */
    public function getIndexQueueAdditionalWhereClauseByConfigurationName($configurationName)
    {
        $path = 'plugin.tx_solr.index.queue.' . $configurationName . '.additionalWhereClause';
        $additionalWhere = $this->getValueByPathOrDefaultValue($path, '');

        if (trim($additionalWhere) === '') {

It seems like $additionalWhere can also be of type array; however, parameter $str of trim() does only seem to accept string, maybe add an additional type check?

            return '';
        }

        return ' AND ' . $additionalWhere;

Are you sure $additionalWhere of type string|array can be used in concatenation?

    }

    /**
     * This method can be used to retrieve all index queue configuration names, where
     * a certain table is used. It can be configured with the property "table" or is using the configuration
     * key a fallback for the table name.
     *
     * plugin.tx_solr.index.queue.<configurationName>.
     *
     * @param string $tableName
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getIndexQueueConfigurationNamesByTableName($tableName, $defaultIfEmpty = [])
    {
        $path = 'plugin.tx_solr.index.queue.';
        $configuration = $this->getObjectByPathOrDefault($path, []);
        $possibleConfigurations = [];

        foreach ($configuration as $configurationName => $indexingEnabled) {
            $isObject = substr($configurationName, -1) === '.';
            if ($isObject || !$indexingEnabled) {
                continue;
            }

            // when the configuration name equals the tableName we have a fallback
            $hasTableNameAsConfigurationName = $configurationName == $tableName;
            $hasTableAssignedInQueueConfiguration = isset($configuration[$configurationName . '.']['table']) &&
                                                    $configuration[$configurationName . '.']['table'] == $tableName;
            if ($hasTableNameAsConfigurationName || $hasTableAssignedInQueueConfiguration) {
                $possibleConfigurations[] = $configurationName;
            }
        }

        return count($possibleConfigurations) > 0 ? $possibleConfigurations : $defaultIfEmpty;
    }

    /**
     * This method is used to retrieve the className of a queue initializer for a certain indexing configuration
     * of returns the default initializer class, when noting is configured.
     *
     * plugin.tx_solr.index.queue.<configurationName>.initialization
     *
     * @param string $configurationName
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getIndexQueueInitializerClassByConfigurationName($configurationName, $defaultIfEmpty = Record::class)
    {
        $path = 'plugin.tx_solr.index.queue.' . $configurationName . '.initialization';
        $className = $this->getValueByPathOrDefaultValue($path, $defaultIfEmpty);

        return $className;

The expression return $className also could return the type array which is incompatible with the documented return type string.

    }

    /**
     * Returns the _LOCAL_LANG configuration from the TypoScript.
     *
     * plugin.tx_solr._LOCAL_LANG.
     *
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getLocalLangConfiguration(array $defaultIfEmpty = [])
    {
        $result = $this->getObjectByPathOrDefault('plugin.tx_solr._LOCAL_LANG.', $defaultIfEmpty);
        return $result;
    }

    /**
     * When this is enabled the output of the devlog, will be printed as debug output.
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getLoggingDebugOutput($defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.logging.debugOutput', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Returns if query filters should be written to the log.
     *
     * plugin.tx_solr.logging.query.filters
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getLoggingQueryFilters($defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.logging.query.filters', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Returns if the querystring should be logged or not.
     *
     * plugin.tx_solr.logging.query.queryString
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getLoggingQueryQueryString($defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.logging.query.queryString', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Returns if the searchWords should be logged or not.
     *
     * plugin.tx_solr.logging.query.searchWords
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getLoggingQuerySearchWords($defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.logging.query.searchWords', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Returns if the rawGet requests should be logged or not.
     *
     * plugin.tx_solr.logging.query.rawGet
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getLoggingQueryRawGet($defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.logging.query.rawGet', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Returns if the rawPost requests should be logged or not.
     *
     * plugin.tx_solr.logging.query.rawPost
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getLoggingQueryRawPost($defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.logging.query.rawPost', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Returns if the rawDelete requests should be logged or not.
     *
     * plugin.tx_solr.logging.query.rawDelete
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getLoggingQueryRawDelete($defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.logging.query.rawDelete', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Returns if exceptions should be logged or not.
     *
     * plugin.tx_solr.logging.exceptions
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getLoggingExceptions($defaultIfEmpty = true)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.logging.exceptions', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Returns if indexing operations should be logged or not.
     *
     * plugin.tx_solr.logging.indexing
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getLoggingIndexing($defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.logging.indexing', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Returns if indexing queue operations should be logged or not.
     *
     * plugin.tx_solr.logging.indexing.queue
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getLoggingIndexingQueue($defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.logging.indexing.queue', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * This method can be used to check if the logging during indexing should be done.
     * It takes the specific configuration by indexQueueConfiguration into account or is using the
     * fallback when the logging is enabled on queue or indexing level.
     *
     * plugin.tx_solr.logging.indexing.queue.<indexQueueConfiguration>
     *
     * @param string $indexQueueConfiguration
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getLoggingIndexingQueueOperationsByConfigurationNameWithFallBack($indexQueueConfiguration, $defaultIfEmpty = false)
    {
        // when logging is globally enabled we do not need to check the specific configuration
        if ($this->getLoggingIndexing()) {
            return true;
        }

        // when the logging for indexing is enabled on queue level we also do not need to check the specific configuration
        if ($this->getLoggingIndexingQueue()) {
            return true;
        }

        $path = 'plugin.tx_solr.logging.indexing.queue.' . $indexQueueConfiguration;
        $result = $this->getValueByPathOrDefaultValue($path, $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Returns if a log message should be written when a page was indexed.
     *
     * plugin.tx_solr.logging.indexing.pageIndexed
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getLoggingIndexingPageIndexed($defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.logging.indexing.pageIndexed', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Returns if a log message should be written when the TYPO3 search markers are missing in the page.
     *
     * plugin.tx_solr.logging.indexing.missingTypo3SearchMarkers
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getLoggingIndexingMissingTypo3SearchMarkers($defaultIfEmpty = true)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.logging.indexing.missingTypo3SearchMarkers', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Returns if the initialization of an indexqueue should be logged.
     *
     * plugin.tx_solr.logging.indexing.indexQueueInitialization
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getLoggingIndexingIndexQueueInitialization($defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.logging.indexing.indexQueueInitialization', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Indicates if the debug mode is enabled or not.
     *
     * plugin.tx_solr.enableDebugMode
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getEnabledDebugMode($defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.enableDebugMode', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Returns true or false if something is configured below plugin.tx_solr.solr.
     *
     * plugin.tx_solr.solr.
     *
     * @param boolean $defaultIfEmpty
     * @return boolean
     */
    public function getSolrHasConnectionConfiguration($defaultIfEmpty = false)
    {
        $configuration = $this->getObjectByPathOrDefault('plugin.tx_solr.solr.', []);
        return $configuration !== [] ? true : $defaultIfEmpty;
    }

    /**
     * Returns the defaultTimeout used for requests to the Solr server
     *
     * plugin.tx_solr.solr.timeout
     *
     * @param float $defaultIfEmpty
     * @return float
     */
    public function getSolrTimeout($defaultIfEmpty = 0.0)
    {
        return (float)$this->getValueByPathOrDefaultValue('plugin.tx_solr.solr.timeout', $defaultIfEmpty);
    }

    /**
     * Returns the scheme used for requests to the Solr server
     *
     * plugin.tx_solr.solr.scheme
     *
     * Applies stdWrap on the configured setting
     *
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getSolrScheme($defaultIfEmpty = 'http')
    {
        $valuePath = 'plugin.tx_solr.solr.scheme';
        $value = (string)$this->getValueByPathOrDefaultValue($valuePath, $defaultIfEmpty);
        return $this->renderContentElementOfConfigured($valuePath, $value);
    }

    /**
     * Returns the hostname used for requests to the Solr server
     *
     * plugin.tx_solr.solr.host
     *
     * Applies stdWrap on the configured setting
     *
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getSolrHost($defaultIfEmpty = 'localhost')
    {
        $valuePath = 'plugin.tx_solr.solr.host';
        $value = (string)$this->getValueByPathOrDefaultValue($valuePath, $defaultIfEmpty);
        return $this->renderContentElementOfConfigured($valuePath, $value);
    }

    /**
     * Returns the port used for requests to the Solr server
     *
     * plugin.tx_solr.solr.port
     *
     * Applies stdWrap on the configured setting
     *
     * @param int $defaultIfEmpty
     * @return int
     */
    public function getSolrPort($defaultIfEmpty = 8983)
    {
        $valuePath = 'plugin.tx_solr.solr.port';
        $value = (string)$this->getValueByPathOrDefaultValue($valuePath, $defaultIfEmpty);
        return $this->renderContentElementOfConfigured($valuePath, $value);

The expression return $this->renderContentElementOfConfigured($valuePath, $value) returns the type string which is incompatible with the documented return type integer.

    }

    /**
     * Returns the path used for requests to the Solr server
     *
     * plugin.tx_solr.solr.path
     *
     * Applies stdWrap on the configured setting
     *
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getSolrPath($defaultIfEmpty = '/solr/core_en/')
    {
        $valuePath = 'plugin.tx_solr.solr.path';
        $value = (string)$this->getValueByPathOrDefaultValue($valuePath, $defaultIfEmpty);
        $solrPath = $this->renderContentElementOfConfigured($valuePath, $value);

        $solrPath = trim($solrPath, '/');
        $solrPath = '/' . $solrPath . '/';

        return $solrPath;
    }

    /**
     * Returns the username used for requests to the Solr server
     *
     * plugin.tx_solr.solr.username
     *
     * Applies stdWrap on the configured setting
     *
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getSolrUsername($defaultIfEmpty = '')
    {
        $valuePath = 'plugin.tx_solr.solr.username';
        $value = (string)$this->getValueByPathOrDefaultValue($valuePath, $defaultIfEmpty);
        return $this->renderContentElementOfConfigured($valuePath, $value);
    }

    /**
     * Returns the password used for requests to the Solr server
     *
     * plugin.tx_solr.solr.password
     *
     * Applies stdWrap on the configured setting
     *
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getSolrPassword($defaultIfEmpty = '')
    {
        $valuePath = 'plugin.tx_solr.solr.password';
        $value = (string)$this->getValueByPathOrDefaultValue($valuePath, $defaultIfEmpty);
        return $this->renderContentElementOfConfigured($valuePath, $value);
    }

    /**
     * Retrieves the complete search configuration
     *
     * plugin.tx_solr.search.
     *
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getSearchConfiguration(array $defaultIfEmpty = [])
    {
        $result = $this->getObjectByPathOrDefault('plugin.tx_solr.search.', $defaultIfEmpty);
        return $result;
    }

    /**
     * Indicates if elevation should be used or not
     *
     * plugin.tx_solr.search.elevation
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSearchElevation($defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.elevation', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Indicates if elevated results should be marked
     *
     * plugin.tx_solr.search.elevation.markElevatedResults
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSearchElevationMarkElevatedResults($defaultIfEmpty = true)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.elevation.markElevatedResults', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Indicates if elevation should be forced
     *
     *plugin.tx_solr.search.elevation.forceElevation
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSearchElevationForceElevation($defaultIfEmpty = true)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.elevation.forceElevation', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Indicates if collapsing on a certain field should be used to build variants or not.
     *
     * plugin.tx_solr.search.variants
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSearchVariants($defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.variants', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Indicates if collapsing on a certain field should be used or not
     *
     * plugin.tx_solr.search.variants.variantField
     *
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getSearchVariantsField($defaultIfEmpty = 'variantId')
    {
        return $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.variants.variantField', $defaultIfEmpty);

The expression return $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.variants.variantField', $defaultIfEmpty) also could return the type array which is incompatible with the documented return type string.

    }

    /**
     * Indicates if expanding of collapsed items it activated.
     *
     * plugin.tx_solr.search.variants.expand
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSearchVariantsExpand($defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.variants.expand', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Retrieves the number of elements that should be expanded.
     *
     * plugin.tx_solr.search.variants.limit
     *
     * @param int $defaultIfEmpty
     * @return int
     */
    public function getSearchVariantsLimit($defaultIfEmpty = 10)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.variants.limit', $defaultIfEmpty);
        return (int)$result;
    }

    /**
     * Indicates if frequent searches should be show or not.
     *
     * plugin.tx_solr.search.frequentSearches
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSearchFrequentSearches($defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.frequentSearches', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Returns the sub configuration of the frequentSearches
     *
     * plugin.tx_solr.search.frequentSearches.
     *
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getSearchFrequentSearchesConfiguration($defaultIfEmpty = [])
    {
        $result = $this->getObjectByPathOrDefault('plugin.tx_solr.search.frequentSearches.', $defaultIfEmpty);
        return $result;
    }

    /**
     * Retrieves the minimum font size that should be used for the frequentSearches.
     *
     * plugin.tx_solr.search.frequentSearches.minSize
     *
     * @param int $defaultIfEmpty
     * @return int
     */
    public function getSearchFrequentSearchesMinSize($defaultIfEmpty = 14)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.frequentSearches.minSize', $defaultIfEmpty);
        return (int)$result;
    }

    /**
     * Retrieves the maximum font size that should be used for the frequentSearches.
     *
     * plugin.tx_solr.search.frequentSearches.minSize
     *
     * @param int $defaultIfEmpty
     * @return int
     */
    public function getSearchFrequentSearchesMaxSize($defaultIfEmpty = 32)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.frequentSearches.maxSize', $defaultIfEmpty);
        return (int)$result;
    }

    /**
     * Indicates if frequent searches should be show or not.
     *
     * plugin.tx_solr.search.frequentSearches.useLowercaseKeywords
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSearchFrequentSearchesUseLowercaseKeywords($defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.frequentSearches.useLowercaseKeywords', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Returns the configuration if the search should be initialized with an empty query.
     *
     * plugin.tx_solr.search.initializeWithEmptyQuery
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSearchInitializeWithEmptyQuery($defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.initializeWithEmptyQuery', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Returns the configured initial query
     *
     * plugin.tx_solr.search.initializeWithQuery
     *
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getSearchInitializeWithQuery($defaultIfEmpty = '')
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.initializeWithQuery', $defaultIfEmpty);
        return (string)$result;
    }

    /**
     * Returns if the last searches should be displayed or not.
     *
     * plugin.tx_solr.search.lastSearches
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSearchLastSearches($defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.lastSearches', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Returns the lastSearch mode. "user" for user specific
     *
     * plugin.tx_solr.search.lastSearches.mode
     *
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getSearchLastSearchesMode($defaultIfEmpty = 'user')
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.lastSearches.mode', $defaultIfEmpty);
        return (string)$result;
    }

    /**
     * Returns the lastSearch limit
     *
     * plugin.tx_solr.search.lastSearches.limit
     *
     * @param int $defaultIfEmpty
     * @return int
     */
    public function getSearchLastSearchesLimit($defaultIfEmpty = 10)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.lastSearches.limit', $defaultIfEmpty);
        return (int)$result;
    }

    /**
     * Indicates if the results of an initial empty query should be shown or not.
     *
     * plugin.tx_solr.search.showResultsOfInitialEmptyQuery
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSearchShowResultsOfInitialEmptyQuery($defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.showResultsOfInitialEmptyQuery', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Indicates if the results of an initial search query should be shown.
     *
     * plugin.tx_solr.search.showResultsOfInitialQuery
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSearchShowResultsOfInitialQuery($defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.showResultsOfInitialQuery', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Indicates if sorting was enabled or not.
     *
     * plugin.tx_solr.search.sorting
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSearchSorting($defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.sorting', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Returns the sorting options configurations.
     *
     * plugin.tx_solr.search.sorting.options.
     *
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getSearchSortingOptionsConfiguration($defaultIfEmpty = [])
    {
        $result = $this->getObjectByPathOrDefault('plugin.tx_solr.search.sorting.options.', $defaultIfEmpty);
        return $result;
    }

    /**
     * Retrieves the sorting default order for a sort option.
     *
     * plugin.tx_solr.search.sorting.options.<sortOptionName>.defaultOrder
     *
     * or
     *
     * plugin.tx_solr.search.sorting.defaultOrder
     *
     *
     * @param string $sortOptionName
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getSearchSortingDefaultOrderBySortOptionName($sortOptionName = '', $defaultIfEmpty = 'asc')
    {
        $sortOrderSpecificPath = 'plugin.tx_solr.search.sorting.options.' . $sortOptionName . '.defaultOrder';
        $specificSortOrder = $this->getValueByPathOrDefaultValue($sortOrderSpecificPath, null);

        // if we have a concrete setting, use it
        if ($specificSortOrder !== null) {
            return mb_strtolower($specificSortOrder);

$specificSortOrder of type array is incompatible with the type string expected by parameter $str of mb_strtolower().

        }

        // no specific setting, check common setting
        $commonPath = 'plugin.tx_solr.search.sorting.defaultOrder';
        $commonATagParamOrDefaultValue = $this->getValueByPathOrDefaultValue($commonPath, $defaultIfEmpty);
        return mb_strtolower($commonATagParamOrDefaultValue);
    }

    /**
     * Returns the configured fixedOrder, if nothing configured defaultIfEmpty will be returned.
     *
     * plugin.tx_solr.search.sorting.options.<sortOptionName>.fixedOrder
     *
     * @param string $sortOptionName
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getSearchSortingFixedOrderBySortOptionName($sortOptionName = '', $defaultIfEmpty = '')
    {
        $fixedOrder = 'plugin.tx_solr.search.sorting.options.' . $sortOptionName . '.fixedOrder';
        return mb_strtolower($this->getValueByPathOrDefaultValue($fixedOrder, $defaultIfEmpty));

It seems like $this->getValueByPathOrDefaultValue($fixedOrder, $defaultIfEmpty) can also be of type array; however, parameter $str of mb_strtolower() does only seem to accept string, maybe add an additional type check?

    }

    /**
     * Returns the trusted fields configured for the search that do not need to be escaped.
     *
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getSearchTrustedFieldsArray($defaultIfEmpty = ['url'])
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.trustedFields', '');

        if (trim($result) === '') {

It seems like $result can also be of type array; however, parameter $str of trim() does only seem to accept string, maybe add an additional type check?

            return $defaultIfEmpty;
        }

        return GeneralUtility::trimExplode(',', $result);

It seems like $result can also be of type array; however, parameter $string of TYPO3\CMS\Core\Utility\GeneralUtility::trimExplode() does only seem to accept string, maybe add an additional type check?

    }

    /**
     * Indicates if the plugin arguments should be kept in the search form for a second submission.
     *
     * plugin.tx_solr.search.keepExistingParametersForNewSearches
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSearchKeepExistingParametersForNewSearches($defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.keepExistingParametersForNewSearches', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Returns if an empty query is allowed on the query level.
     *
     * plugin.tx_solr.search.query.allowEmptyQuery
     *
     * @param string $defaultIfEmpty
     * @return bool
     */
    public function getSearchQueryAllowEmptyQuery($defaultIfEmpty = '')
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.query.allowEmptyQuery', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Returns the filter configuration array
     *
     * plugin.tx_solr.search.query.filter.
     *
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getSearchQueryFilterConfiguration(array $defaultIfEmpty = [])
    {
        $result = $this->getObjectByPathOrDefault('plugin.tx_solr.search.query.filter.', $defaultIfEmpty);
        return $result;
    }

    /**
     * Can be used to overwrite the filterConfiguration.
     *
     * plugin.tx_solr.search.query.filter.
     *
     * @param array $configuration
     */
    public function setSearchQueryFilterConfiguration(array $configuration)
    {
        $this->configurationAccess->set('plugin.tx_solr.search.query.filter.', $configuration);
    }

    /**
     * Removes the pageSections filter setting.
     *
     * @return void
     */
    public function removeSearchQueryFilterForPageSections()
    {
        $this->configurationAccess->reset('plugin.tx_solr.search.query.filter.__pageSections');
    }

    /**
     * Returns the configured queryFields from TypoScript
     *
     * plugin.tx_solr.search.query.queryFields
     *
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getSearchQueryQueryFields($defaultIfEmpty = '')
    {
        return $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.query.queryFields', $defaultIfEmpty);

The expression return $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.query.queryFields', $defaultIfEmpty) also could return the type array which is incompatible with the documented return type string.

    }

    /**
     * This method is used to check if a phrase search is enabled or not
     *
     * plugin.tx_solr.search.query.phrase = 1
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getPhraseSearchIsEnabled(bool $defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.query.phrase', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Returns the configured phrase fields from TypoScript
     *
     * plugin.tx_solr.search.query.phrase.fields
     *
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getSearchQueryPhraseFields(string $defaultIfEmpty = '')
    {
        return $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.query.phrase.fields', $defaultIfEmpty);

The expression return $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.query.phrase.fields', $defaultIfEmpty) also could return the type array which is incompatible with the documented return type string.

    }

    /**
     * This method is used to check if a bigram phrase search is enabled or not
     *
     * plugin.tx_solr.search.query.bigramPhrase = 1
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getBigramPhraseSearchIsEnabled(bool $defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.query.bigramPhrase', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Returns the configured phrase fields from TypoScript
     *
     * plugin.tx_solr.search.query.bigramPhrase.fields
     *
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getSearchQueryBigramPhraseFields(string $defaultIfEmpty = '')
    {
        return $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.query.bigramPhrase.fields', $defaultIfEmpty);

The expression return $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.query.bigramPhrase.fields', $defaultIfEmpty) also could return the type array which is incompatible with the documented return type string.

    }

    /**
     * This method is used to check if a trigram phrase search is enabled or not
     *
     * plugin.tx_solr.search.query.trigramPhrase = 1
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getTrigramPhraseSearchIsEnabled(bool $defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.query.trigramPhrase', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Returns the configured trigram phrase fields from TypoScript
     *
     * plugin.tx_solr.search.query.trigramPhrase.fields
     *
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getSearchQueryTrigramPhraseFields(string $defaultIfEmpty = '')
    {
        return $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.query.trigramPhrase.fields', $defaultIfEmpty);

The expression return $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.query.trigramPhrase.fields', $defaultIfEmpty) also could return the type array which is incompatible with the documented return type string.

    }

    /**
     * Returns the configured returnFields as array.
     *
     * plugin.tx_solr.search.query.returnFields
     *
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getSearchQueryReturnFieldsAsArray($defaultIfEmpty = [])
    {
        $returnFields = $this->getValueByPath('plugin.tx_solr.search.query.returnFields');
        if (is_null($returnFields)) {
            return $defaultIfEmpty;
        }

        return GeneralUtility::trimExplode(',', $returnFields);

$returnFields of type array is incompatible with the type string expected by parameter $string of TYPO3\CMS\Core\Utility\GeneralUtility::trimExplode().

    }

    /**
     * Returns the configured target page for the search.
     * By default the contextPageId will be used
     *
     * plugin.tx_solr.search.targetPage
     *
     * @return int
     */
    public function getSearchTargetPage()
    {
        $targetPage = (int)$this->getValueByPathOrDefaultValue('plugin.tx_solr.search.targetPage', 0);
        if ($targetPage === 0) {
            // when no specific page was configured we use the contextPageId (which is usual $GLOBALS['TSFE']->id)
            $targetPage = $this->contextPageId;
        }

        return $targetPage;
    }

    /**
     * Retrieves the targetPage configuration.
     *
     * plugin.tx_solr.search.targetPage.
     *
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getSearchTargetPageConfiguration(array $defaultIfEmpty = [])
    {
        $result = $this->getObjectByPathOrDefault('plugin.tx_solr.search.targetPage.', $defaultIfEmpty);
        return $result;
    }

    /**
     * Method to check if the site highlighting is enabled. When the siteHighlighting is enabled the
     * sword_list parameter is added to the results link.
     *
     * plugin.tx_solr.searcb.results.siteHighlighting
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSearchResultsSiteHighlighting($defaultIfEmpty = true)
    {
        $isSiteHightlightingEnabled = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.results.siteHighlighting', $defaultIfEmpty);
        return $this->getBool($isSiteHightlightingEnabled);
    }


    /**
     * Can be used to check if the highlighting is enabled
     *
     * plugin.tx_solr.search.results.resultsHighlighting
     *
     * @param boolean $defaultIfEmpty
     * @return string
     */
    public function getSearchResultsHighlighting($defaultIfEmpty = false)
    {
        $isHighlightingEnabled = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.results.resultsHighlighting', $defaultIfEmpty);
        return $this->getBool($isHighlightingEnabled);

The expression return $this->getBool($isHighlightingEnabled) returns the type boolean which is incompatible with the documented return type string.

    }

    /**
     * Returns the result highlighting fields.
     *
     * plugin.tx_solr.search.results.resultsHighlighting.highlightFields
     *
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getSearchResultsHighlightingFields($defaultIfEmpty = '')
    {
        return $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.results.resultsHighlighting.highlightFields', $defaultIfEmpty);

The expression return $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.results.resultsHighlighting.highlightFields', $defaultIfEmpty) also could return the type array which is incompatible with the documented return type string.

    }

    /**
     * Returns the result highlighting fields as array.
     *
     * plugin.tx_solr.search.results.resultsHighlighting.highlightFields
     *
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getSearchResultsHighlightingFieldsAsArray($defaultIfEmpty = [])
    {
        $highlightingFields = $this->getSearchResultsHighlightingFields('');

        if ($highlightingFields === '') {
            return $defaultIfEmpty;
        }

        return GeneralUtility::trimExplode(',', $highlightingFields, true);
    }

    /**
     * Returns the fragmentSize for highlighted segments.
     *
     * plugin.tx_solr.search.results.resultsHighlighting.fragmentSize
     *
     * @param int $defaultIfEmpty
     * @return int
     */
    public function getSearchResultsHighlightingFragmentSize($defaultIfEmpty = 200)
    {
        return (int)$this->getValueByPathOrDefaultValue('plugin.tx_solr.search.results.resultsHighlighting.fragmentSize', $defaultIfEmpty);
    }

    /**
     * Returns the fragmentSeparator for highlighted segments.
     *
     * plugin.tx_solr.search.results.resultsHighlighting.fragmentSeparator
     *
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getSearchResultsHighlightingFragmentSeparator($defaultIfEmpty = '[...]')
    {
        return $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.results.resultsHighlighting.fragmentSeparator', $defaultIfEmpty);

The expression return $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.results.resultsHighlighting.fragmentSeparator', $defaultIfEmpty) also could return the type array which is incompatible with the documented return type string.

    }

    /**
     * Returns the number of results that should be shown per page.
     *
     * plugin.tx_solr.search.results.resultsPerPage
     *
     * @param int $defaultIfEmpty
     * @return int
     */
    public function getSearchResultsPerPage($defaultIfEmpty = 10)
    {
        return (int)$this->getValueByPathOrDefaultValue('plugin.tx_solr.search.results.resultsPerPage', $defaultIfEmpty);
    }

    /**
     * Returns the available options for the per page switch.
     *
     * plugin.tx_solr.search.results.resultsPerPageSwitchOptions
     *
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getSearchResultsPerPageSwitchOptionsAsArray($defaultIfEmpty = [])
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.results.resultsPerPageSwitchOptions', '');

        if (trim($result) === '') {

It seems like $result can also be of type array; however, parameter $str of trim() does only seem to accept string, maybe add an additional type check?

            return $defaultIfEmpty;
        }

        return GeneralUtility::intExplode(',', $result, true);

It seems like $result can also be of type array; however, parameter $string of TYPO3\CMS\Core\Utility\GeneralUtility::intExplode() does only seem to accept string, maybe add an additional type check?

    }

    /**
     * Returns the configured wrap for the resultHighlighting.
     *
     * plugin.tx_solr.search.results.resultsHighlighting.wrap
     *
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getSearchResultsHighlightingWrap($defaultIfEmpty = '')
    {
        return $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.results.resultsHighlighting.wrap', $defaultIfEmpty);

The expression return $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.results.resultsHighlighting.wrap', $defaultIfEmpty) also could return the type array which is incompatible with the documented return type string.

    }

    /**
     * Indicates if spellchecking is enabled or not.
     *
     * plugin.tx_solr.search.spellchecking
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSearchSpellchecking($defaultIfEmpty = false)
    {
        $isFacetingEnabled = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.spellchecking', $defaultIfEmpty);
        return $this->getBool($isFacetingEnabled);
    }

    /**
     * Returns the wrap that should be used for spellchecking
     *
     * plugin.tx_solr.search.spellchecking.wrap
     *
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getSearchSpellcheckingWrap($defaultIfEmpty = '')
    {
        return (string)$this->getValueByPathOrDefaultValue('plugin.tx_solr.search.spellchecking.wrap', $defaultIfEmpty);
    }

    /**
     * Returns the numberOfSuggestionsToTry that should be used for the spellchecking.
     *
     * plugin.tx_solr.search.spellchecking.numberOfSuggestionsToTry
     *
     * @param int $defaultIfEmpty
     * @return int
     */
    public function getSearchSpellcheckingNumberOfSuggestionsToTry($defaultIfEmpty = 1)
    {
        return (int)$this->getValueByPathOrDefaultValue('plugin.tx_solr.search.spellchecking.numberOfSuggestionsToTry', $defaultIfEmpty);
    }

    /**
     * Indicates if a second search should be fired from the spellchecking suggestion if no results could be found.
     *
     * plugin.tx_solr.search.spellchecking.searchUsingSpellCheckerSuggestion
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSearchSpellcheckingSearchUsingSpellCheckerSuggestion($defaultIfEmpty = false)
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.spellchecking.searchUsingSpellCheckerSuggestion', $defaultIfEmpty);
        return $this->getBool($result);
    }

    /**
     * Indicates if faceting is enabled or not.
     *
     * plugin.tx_solr.search.faceting
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSearchFaceting($defaultIfEmpty = false)
    {
        $isFacetingEnabled = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.faceting', $defaultIfEmpty);
        return $this->getBool($isFacetingEnabled);
    }

    /**
     * Retrieves the showEvenWhenEmpty for a facet by facet name. If nothing specific is configured
     * the global showEmptyFacets with be returned.
     *
     * plugin.tx_solr.search.faceting.facets.<facetName>.showEvenWhenEmpty
     *
     * or
     *
     * plugin.tx_solr.search.faceting.showEmptyFacets
     *
     *
     * @param string $facetName
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSearchFacetingShowEmptyFacetsByName($facetName = '', $defaultIfEmpty = false)
    {
        $facetSpecificPath = 'plugin.tx_solr.search.faceting.facets.' . $facetName . '.showEvenWhenEmpty';
        $specificShowWhenEmpty = $this->getValueByPathOrDefaultValue($facetSpecificPath, null);

        // if we have a concrete setting, use it
        if ($specificShowWhenEmpty !== null) {
            return $specificShowWhenEmpty;

The expression return $specificShowWhenEmpty returns the type array which is incompatible with the documented return type boolean.

        }

        // no specific setting, check common setting
        $commonPath = 'plugin.tx_solr.search.faceting.showEmptyFacets';
        $commonIfEmptyOrDefaultValue = $this->getValueByPathOrDefaultValue($commonPath, $defaultIfEmpty);
        return $commonIfEmptyOrDefaultValue;

The expression return $commonIfEmptyOrDefaultValue also could return the type array which is incompatible with the documented return type boolean.

    }

    /**
     * Returns the wrap for the faceting show all link
     *
     * plugin.tx_solr.search.faceting.showAllLink.wrap
     *
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getSearchFacetingShowAllLinkWrap($defaultIfEmpty = '')
    {
        return (string)$this->getValueByPathOrDefaultValue('plugin.tx_solr.search.faceting.showAllLink.wrap', $defaultIfEmpty);
    }

    /**
     * Returns the link url parameters that should be added to a facet.
     *
     * plugin.tx_solr.search.faceting.facetLinkUrlParameters
     *
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getSearchFacetingFacetLinkUrlParameters($defaultIfEmpty = '')
    {
        $linkUrlParameters = trim($this->getValueByPathOrDefaultValue('plugin.tx_solr.search.faceting.facetLinkUrlParameters', $defaultIfEmpty));

It seems like $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.faceting.facetLinkUrlParameters', $defaultIfEmpty) can also be of type array; however, parameter $str of trim() does only seem to accept string, maybe add an additional type check?

        return $linkUrlParameters;
    }

    /**
     * Returns if the facetLinkUrlsParameters should be included in the reset link.
     *
     * plugin.tx_solr.search.faceting.facetLinkUrlParameters.useForFacetResetLinkUrl
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSearchFacetingFacetLinkUrlParametersUseForFacetResetLinkUrl($defaultIfEmpty = true)
    {
        $useForFacetResetLinkUrl = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.faceting.facetLinkUrlParameters.useForFacetResetLinkUrl', $defaultIfEmpty);
        return $this->getBool($useForFacetResetLinkUrl);
    }

    /**
     * Returns the link url parameters that should be added to a facet as array.
     *
     * plugin.tx_solr.search.faceting.facetLinkUrlParameters
     *
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getSearchFacetingFacetLinkUrlParametersAsArray($defaultIfEmpty = [])
    {
        $linkUrlParameters = $this->getSearchFacetingFacetLinkUrlParameters();
        if ($linkUrlParameters === '') {
            return $defaultIfEmpty;
        }

        return GeneralUtility::explodeUrl2Array($linkUrlParameters);
    }

    /**
     * Return the configured minimumCount value for facets.
     *
     * plugin.tx_solr.search.faceting.minimumCount
     *
     * @param int $defaultIfEmpty
     * @return int
     */
    public function getSearchFacetingMinimumCount($defaultIfEmpty = 1)
    {
        return (int)$this->getValueByPathOrDefaultValue('plugin.tx_solr.search.faceting.minimumCount', $defaultIfEmpty);
    }

    /**
     * Return the configured limit value for facets, used for displaying.
     *
     * plugin.tx_solr.search.faceting.limit
     *
     * @param int $defaultIfEmpty
     * @return int
     */
    public function getSearchFacetingLimit($defaultIfEmpty = 10)
    {
        return (int)$this->getValueByPathOrDefaultValue('plugin.tx_solr.search.faceting.limit', $defaultIfEmpty);
    }

    /**
     * Return the configured limit value for facets, used for the response.
     *
     * plugin.tx_solr.search.faceting.facetLimit
     *
     * @param int $defaultIfEmpty
     * @return int
     */
    public function getSearchFacetingFacetLimit($defaultIfEmpty = 100)
    {
        return (int)$this->getValueByPathOrDefaultValue('plugin.tx_solr.search.faceting.facetLimit', $defaultIfEmpty);
    }

    /**
     * Returns if the singleFacetMode is active or not.
     *
     * plugin.tx_solr.search.faceting.singleFacetMode
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSearchFacetingSingleFacetMode($defaultIfEmpty = false)
    {
        $singleFacetMode = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.faceting.singleFacetMode', $defaultIfEmpty);
        return $this->getBool($singleFacetMode);
    }

    /**
     * Return the configured faceting sortBy value.
     *
     * plugin.tx_solr.search.faceting.sortBy
     *
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getSearchFacetingSortBy($defaultIfEmpty = '')
    {
        return $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.faceting.sortBy', $defaultIfEmpty);

The expression return $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.faceting.sortBy', $defaultIfEmpty) also could return the type array which is incompatible with the documented return type string.

    }

    /**
     * Returns if a facets should be kept on selection. Global faceting setting
     * can also be configured on facet level by using
     * (plugin.tx_solr.search.faceting.facets.<fieldName>.keepAllOptionsOnSelection)
     *
     * plugin.tx_solr.search.faceting.keepAllFacetsOnSelection
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSearchFacetingKeepAllFacetsOnSelection($defaultIfEmpty = false)
    {
        $keepAllOptionsOnSelection = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.faceting.keepAllFacetsOnSelection', $defaultIfEmpty);
        return $this->getBool($keepAllOptionsOnSelection);
    }

    /**
     * Returns if the facet count should be calculated based on the facet selection when
     * plugin.tx_solr.search.faceting.keepAllFacetsOnSelection has been enabled
     *
     * plugin.tx_solr.search.faceting.countAllFacetsForSelection
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSearchFacetingCountAllFacetsForSelection($defaultIfEmpty = false)
    {
        $countAllFacetsForSelection = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.faceting.countAllFacetsForSelection', $defaultIfEmpty);
        return $this->getBool($countAllFacetsForSelection);
    }

    /**
     * Returns the configured faceting configuration.
     *
     * plugin.tx_solr.search.faceting.facets
     *
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getSearchFacetingFacets(array $defaultIfEmpty = [])
    {
        return $this->getObjectByPathOrDefault('plugin.tx_solr.search.faceting.facets.', $defaultIfEmpty);
    }

    /**
     * Returns the configuration of a single facet by facet name.
     *
     * plugin.tx_solr.search.faceting.facets.<facetName>
     *
     * @param string $facetName
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getSearchFacetingFacetByName($facetName, $defaultIfEmpty = [])
    {
        return $this->getObjectByPathOrDefault('plugin.tx_solr.search.faceting.facets.' . $facetName . '.', $defaultIfEmpty);
    }

    /**
     * Indicates if statistics is enabled or not.
     *
     * plugin.tx_solr.statistics
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getStatistics($defaultIfEmpty = false)
    {
        $isStatisticsEnabled = $this->getValueByPathOrDefaultValue('plugin.tx_solr.statistics', $defaultIfEmpty);
        return $this->getBool($isStatisticsEnabled);
    }

    /**
     * Indicates to which length an ip should be anonymized in the statistics
     *
     * plugin.tx_solr.statistics.anonymizeIP
     *
     * @param int $defaultIfEmpty
     * @return int
     */
    public function getStatisticsAnonymizeIP($defaultIfEmpty = 0)
    {
        $anonymizeToLength = $this->getValueByPathOrDefaultValue('plugin.tx_solr.statistics.anonymizeIP', $defaultIfEmpty);
        return (int)$anonymizeToLength;
    }

    /**
     * Indicates if additional debug Data should be added to the statistics
     *
     * plugin.tx_solr.statistics.addDebugData
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getStatisticsAddDebugData($defaultIfEmpty = false)
    {
        $statisticsAddDebugDataEnabled = $this->getValueByPathOrDefaultValue('plugin.tx_solr.statistics.addDebugData', $defaultIfEmpty);
        return $this->getBool($statisticsAddDebugDataEnabled);
    }

    /**
     * Indicates if suggestion is enabled or not.
     *
     * plugin.tx_solr.suggest
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSuggest($defaultIfEmpty = false)
    {
        $isSuggestionEnabled = $this->getValueByPathOrDefaultValue('plugin.tx_solr.suggest', $defaultIfEmpty);
        return $this->getBool($isSuggestionEnabled);
    }

    /**
     * Indicates if https should be used for the suggest form.
     *
     * plugin.tx_solr.suggest.forceHttps
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSuggestForceHttps($defaultIfEmpty = false)
    {
        $isHttpsForced = $this->getValueByPathOrDefaultValue('plugin.tx_solr.suggest.forceHttps', $defaultIfEmpty);
        return $this->getBool($isHttpsForced);
    }

    /**
     * Returns the allowed number of suggestions.
     *
     * plugin.tx_solr.suggest.numberOfSuggestions
     *
     * @param int $defaultIfEmpty
     * @return int
     */
    public function getSuggestNumberOfSuggestions($defaultIfEmpty = 10)
    {
        $numberOfSuggestions = $this->getValueByPathOrDefaultValue('plugin.tx_solr.suggest.numberOfSuggestions', $defaultIfEmpty);
        return (int)$numberOfSuggestions;
    }

    /**
     * Indicates if the topResults should be shown or not
     *
     * plugin.tx_solr.suggest.showTopResults
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSuggestShowTopResults($defaultIfEmpty = true)
    {
        $showTopResults = $this->getValueByPathOrDefaultValue('plugin.tx_solr.suggest.showTopResults', $defaultIfEmpty);
        return $this->getBool($showTopResults);
    }

    /**
     * Returns the configured number of top results to show
     *
     * plugin.tx_solr.suggest.numberOfTopResults
     *
     * @param int $defaultIfEmpty
     * @return int
     */
    public function getSuggestNumberOfTopResults($defaultIfEmpty = 5)
    {
        $numberOfTopResults = $this->getValueByPathOrDefaultValue('plugin.tx_solr.suggest.numberOfTopResults', $defaultIfEmpty);
        return (int)$numberOfTopResults;
    }

    /**
     * Returns the configured template for a specific template fileKey.
     *
     * plugin.tx_solr.view.templateFiles.<fileKey>
     *
     * @param string $fileKey
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getViewTemplateByFileKey($fileKey, $defaultIfEmpty = '')
    {
        $templateFileName = $this->getValueByPathOrDefaultValue('plugin.tx_solr.view.templateFiles.' . $fileKey, $defaultIfEmpty);
        return (string)$templateFileName;
    }

    /**
     * Returns the configured available template files for the flexform.
     *
     * plugin.tx_solr.view.templateFiles.[fileKey].availableTemplates.
     *
     * @param string $fileKey
     * @return array
     */
    public function getAvailableTemplatesByFileKey($fileKey)
    {
        $path = 'plugin.tx_solr.view.templateFiles.' . $fileKey . '.availableTemplates.';
        return (array)$this->getObjectByPathOrDefault($path, []);
    }

    /**
     * Returns the configuration of the crop view helper.
     *
     * plugin.tx_solr.viewHelpers.crop.
     *
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getViewHelpersCropConfiguration(array $defaultIfEmpty = [])
    {
        $cropViewHelperConfiguration = $this->getObjectByPathOrDefault('plugin.tx_solr.viewHelpers.crop.', $defaultIfEmpty);
        return $cropViewHelperConfiguration;
    }

    /**
     * Returns the configuration of the sorting view helper.
     *
     * plugin.tx_solr.viewHelpers.sortIndicator.
     *
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getViewHelpersSortIndicatorConfiguration(array $defaultIfEmpty = [])
    {
        $sortingViewHelperConfiguration = $this->getObjectByPathOrDefault('plugin.tx_solr.viewHelpers.sortIndicator.', $defaultIfEmpty);
        return $sortingViewHelperConfiguration;
    }

    /**
     * Controls whether ext-solr will send commits to solr.
     * Beware: If you disable this, you need to ensure
     * that some other mechanism will commit your changes
     * otherwise they will never be searchable.
     * A good way to achieve this is enabling the solr
     * daemons autoCommit feature.
     *
     * plugin.tx_solr.index.enableCommits
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getEnableCommits($defaultIfEmpty = true)
    {
        $enableCommits = $this->getValueByPathOrDefaultValue('plugin.tx_solr.index.enableCommits', $defaultIfEmpty);
        return $this->getBool($enableCommits);
    }

    /**
     * Returns the url namespace that is used for the arguments.
     *
     * plugin.tx_solr.view.pluginNamespace
     *
     * @param string $defaultIfEmpty
     * @return string
     */
    public function getSearchPluginNamespace($defaultIfEmpty = 'tx_solr')
    {
        return $this->getValueByPathOrDefaultValue('plugin.tx_solr.view.pluginNamespace', $defaultIfEmpty);

The expression return $this->getValueByPathOrDefaultValue('plugin.tx_solr.view.pluginNamespace', $defaultIfEmpty) also could return the type array which is incompatible with the documented return type string.

    }

    /**
     * Returns true if the global url parameter q, that indicates the query should be used.
     *
     * Should be set to false, when multiple instance on the same page should have their querystring.
     *
     * plugin.tx_solr.search.ignoreGlobalQParameter
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSearchIgnoreGlobalQParameter($defaultIfEmpty = false)
    {
        $enableQParameter = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.ignoreGlobalQParameter', $defaultIfEmpty);
        return $this->getBool($enableQParameter);

    }

    /**
     * Method to check if grouping was enabled with typoscript.
     *
     * plugin.tx_solr.search.grouping
     *
     * @param bool $defaultIfEmpty
     * @return bool
     */
    public function getSearchGrouping($defaultIfEmpty = false)
    {
        $groupingEnabled = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.grouping', $defaultIfEmpty);
        return $this->getBool($groupingEnabled);
    }

    /**
     * Returns the configured numberOfGroups.
     *
     * plugin.tx_solr.search.grouping.numberOfGroups
     *
     * @param int $defaultIfEmpty
     * @return int
     */
    public function getSearchGroupingNumberOfGroups($defaultIfEmpty = 5)
    {
        return (int)$this->getValueByPathOrDefaultValue('plugin.tx_solr.search.grouping.numberOfGroups', $defaultIfEmpty);
    }

    /**
     * Returns the highestValue of the numberOfResultsPerGroup configuration that is globally configured and
     * for each group.
     *
     * plugin.tx_solr.search.grouping.
     *
     * @param int $defaultIfEmpty
     * @return int
     */
    public function getSearchGroupingHighestGroupResultsLimit($defaultIfEmpty = 1)
    {
        $groupingConfiguration = $this->getObjectByPathOrDefault('plugin.tx_solr.search.grouping.', []);
        $highestLimit = $defaultIfEmpty;
        if (!empty($groupingConfiguration['numberOfResultsPerGroup'])) {
            $highestLimit = $groupingConfiguration['numberOfResultsPerGroup'];
        }

        $configuredGroups = $groupingConfiguration['groups.'];
        if (!is_array($configuredGroups)) {
            return $highestLimit;
        }

        foreach ($configuredGroups as $groupName => $groupConfiguration) {
            if (!empty($groupConfiguration['numberOfResultsPerGroup']) && $groupConfiguration['numberOfResultsPerGroup'] > $highestLimit) {
                $highestLimit = $groupConfiguration['numberOfResultsPerGroup'];
            }
        }

        return $highestLimit;
    }

    /**
     * Returns the valid numberOfResultsPerGroup value for a group.
     *
     * Returns:
     *
     * plugin.tx_solr.search.grouping.groups.<groupName>.numberOfResultsPerGroup if it is set otherwise
     * plugin.tx_solr.search.grouping.numberOfResultsPerGroup
     *
     * @param string $groupName
     * @param int $defaultIfEmpty
     * @return int
     */
    public function getSearchGroupingResultLimit($groupName, $defaultIfEmpty = 1)
    {
        $specificPath = 'plugin.tx_solr.search.grouping.groups.' . $groupName . 'numberOfResultsPerGroup';
        $specificResultsPerGroup = $this->getValueByPathOrDefaultValue($specificPath, null);

        if ($specificResultsPerGroup !== null) {
            return (int) $specificResultsPerGroup;
        }

        $commonPath = 'plugin.tx_solr.search.grouping.numberOfResultsPerGroup';
        $commonValue = $this->getValueByPathOrDefaultValue($commonPath, null);
        if ($commonValue !== null) {
            return (int) $commonValue;
        }

        return $defaultIfEmpty;
    }

    /**
     * Returns everything that is configured for the groups (plugin.tx_solr.search.grouping.groups.)
     *
     * plugin.tx_solr.search.grouping.groups.
     *
     * @param array $defaultIfEmpty
     * @return array
     */
    public function getSearchGroupingGroupsConfiguration($defaultIfEmpty = [])
    {
        return $this->getObjectByPathOrDefault('plugin.tx_solr.search.grouping.groups.', $defaultIfEmpty);
    }

    /*
     * Applies the stdWrap if it is configured for the path, otherwise the unprocessed value will be returned.
     *
     * @param string $valuePath
     * @param mixed $value
     * @return mixed
     */
    protected function renderContentElementOfConfigured($valuePath, $value)
    {
        $configurationPath = $valuePath . '.';
        $configuration = $this->getObjectByPath($configurationPath);

        if ($configuration == null) {

The condition $configuration == null can never be true.

            return $value;
        }

        return $this->contentObjectService->renderSingleContentObject($value, $configuration);
    }
}