--- /dev/null
+<?php
+
+namespace Drupal\search_api_synonym\Plugin\search_api_synonym\import;
+
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Link;
+use Drupal\Core\Url;
+use Drupal\Component\Serialization\Json AS SerializationJSON;
+use Drupal\file\Entity\File;
+use Drupal\search_api_synonym\Import\ImportPluginBase;
+use Drupal\search_api_synonym\Import\ImportPluginInterface;
+
+/**
+ * Import of JSON files.
+ *
+ * @SearchApiSynonymImport(
+ * id = "json",
+ * label = @Translation("JSON"),
+ * description = @Translation("Synonym import plugin from JSON file.")
+ * )
+ */
+class JSON extends ImportPluginBase implements ImportPluginInterface {
+
+ /**
+ * {@inheritdoc}
+ */
+ public function parseFile(File $file, array $settings = []) {
+ $data = [];
+ $json = file_get_contents($file->getFileUri());
+
+ if ($items = SerializationJSON::decode($json)) {
+ foreach ($items as $item) {
+ if (!empty($item['word']) && !empty($item['synonym'])) {
+ $data[] = [
+ 'word' => $item['word'],
+ 'synonym' => $item['synonym'],
+ 'type' => !empty($item['type']) ? $item['type'] : ''
+ ];
+ }
+ }
+ }
+
+ return $data;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
+ $example_url = 'internal:' . base_path() . drupal_get_path('module', 'search_api_synonym') . '/examples/example.json';
+ $form['template'] = [
+ '#type' => 'item',
+ '#title' => $this->t('Example'),
+ '#markup' => Link::fromTextAndUrl(t('Download example file'), Url::fromUri($example_url))->toString()
+ ];
+ return $form;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function validateConfigurationForm(array &$form, FormStateInterface $form_state) {
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function allowedExtensions() {
+ return ['json'];
+ }
+
+}