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Classes/System/Solr/Parser/SchemaParser.php

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+<?php
+
+namespace WapplerSystems\Meilisearch\System\Solr\Parser;
+
+/***************************************************************
+ *  Copyright notice
+ *
+ *  (c) 2010-2016 Timo Hund <timo.hund@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.
+ *
+ *  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 WapplerSystems\Meilisearch\System\Solr\Schema\Schema;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+/**
+ * Class to parse the schema from a solr response.
+ *
+ * @author Timo Hund <timo.hund@dkd.de>
+ */
+class SchemaParser
+{
+
+    /**
+     * Parse the solr stopwords response from an json string to an array.
+     *
+     * @param string $jsonString
+     * @return Schema
+     */
+    public function parseJson($jsonString)
+    {
+        $decodedResponse = json_decode($jsonString);
+        $schemaResponse = $decodedResponse->schema;
+
+        $schema = GeneralUtility::makeInstance(Schema::class);
+
+        if ($schemaResponse === null) {
+            return $schema;
+        }
+
+        $language = $this->parseLanguage($schemaResponse);
+        $schema->setLanguage($language);
+
+        $name = $this->parseName($schemaResponse);
+        $schema->setName($name);
+
+        return $schema;
+    }
+
+    /**
+     * Extracts the language from a solr schema response.
+     *
+     * @param \stdClass $schema
+     * @return string
+     */
+    protected function parseLanguage(\stdClass $schema)
+    {
+        $language = 'english';
+        if (!is_object($schema) || !isset($schema->fieldTypes)) {
+            return $language;
+        }
+
+        foreach ($schema->fieldTypes as $fieldType) {
+            if ($fieldType->name !== 'text') {
+                continue;
+            }
+            // we have a text field
+            foreach ($fieldType->queryAnalyzer->filters as $filter) {
+                if ($filter->class === 'solr.ManagedSynonymGraphFilterFactory') {
+                    $language = $filter->managed;
+                }
+            }
+        }
+
+        return $language;
+    }
+
+    /**
+     * Extracts the schema name from the response.
+     *
+     * @param \stdClass $schemaResponse
+     * @return string
+     */
+    protected function parseName(\stdClass $schemaResponse)
+    {
+        return isset($schemaResponse->name) ? $schemaResponse->name : '';
+    }
+}