Version 1

[yaffs-website] / web / modules / contrib / migrate_plus / src / Plugin / migrate_plus / data_parser / Json.php

diff --git a/web/modules/contrib/migrate_plus/src/Plugin/migrate_plus/data_parser/Json.php b/web/modules/contrib/migrate_plus/src/Plugin/migrate_plus/data_parser/Json.php
new file mode 100755 (executable)
index 0000000..7fdc387
--- /dev/null
+++ b/web/modules/contrib/migrate_plus/src/Plugin/migrate_plus/data_parser/Json.php
@@ -0,0 +1,126 @@
+<?php
+
+namespace Drupal\migrate_plus\Plugin\migrate_plus\data_parser;
+
+use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
+use Drupal\migrate_plus\DataParserPluginBase;
+
+/**
+ * Obtain JSON data for migration.
+ *
+ * @DataParser(
+ *   id = "json",
+ *   title = @Translation("JSON")
+ * )
+ */
+class Json extends DataParserPluginBase implements ContainerFactoryPluginInterface {
+
+  /**
+   * The request headers passed to the data fetcher.
+   *
+   * @var array
+   */
+  protected $headers = [];
+
+  /**
+   * Iterator over the JSON data.
+   *
+   * @var \Iterator
+   */
+  protected $iterator;
+
+  /**
+   * Retrieves the JSON data and returns it as an array.
+   *
+   * @param string $url
+   *   URL of a JSON feed.
+   *
+   * @return array
+   *   The selected data to be iterated.
+   *
+   * @throws \GuzzleHttp\Exception\RequestException
+   */
+  protected function getSourceData($url) {
+    $response = $this->getDataFetcherPlugin()->getResponseContent($url);
+
+    // json_decode() expects utf8 data so let's make sure it gets it.
+    $utf8response = utf8_encode($response);
+
+    // Convert objects to associative arrays.
+    $source_data = json_decode($utf8response, TRUE);
+    // Backwards-compatibility for depth selection.
+    if (is_int($this->itemSelector)) {
+      return $this->selectByDepth($source_data);
+    }
+
+    // Otherwise, we're using xpath-like selectors.
+    $selectors = explode('/', trim($this->itemSelector, '/'));
+    foreach ($selectors as $selector) {
+      $source_data = $source_data[$selector];
+    }
+    return $source_data;
+  }
+
+  /**
+   * Get the source data for reading.
+   *
+   * @param array $raw_data
+   *   Raw data from the JSON feed.
+   *
+   * @return array
+   *   Selected items at the requested depth of the JSON feed.
+   */
+  protected function selectByDepth(array $raw_data) {
+    // Return the results in a recursive iterator that can traverse
+    // multidimensional arrays.
+    $iterator = new \RecursiveIteratorIterator(
+      new \RecursiveArrayIterator($raw_data),
+      \RecursiveIteratorIterator::SELF_FIRST);
+    $items = [];
+    // Backwards-compatibility - an integer item_selector is interpreted as a
+    // depth. When there is an array of items at the expected depth, pull that
+    // array out as a distinct item.
+    $identifierDepth = $this->itemSelector;
+    $iterator->rewind();
+    while ($iterator->valid()) {
+      $item = $iterator->current();
+      if (is_array($item) && $iterator->getDepth() == $identifierDepth) {
+        $items[] = $item;
+      }
+      $iterator->next();
+    }
+    return $items;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function openSourceUrl($url) {
+    // (Re)open the provided URL.
+    $source_data = $this->getSourceData($url);
+    $this->iterator = new \ArrayIterator($source_data);
+    return TRUE;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function fetchNextRow() {
+    $current = $this->iterator->current();
+    if ($current) {
+      foreach ($this->fieldSelectors() as $field_name => $selector) {
+        $field_data = $current;
+        $field_selectors = explode('/', trim($selector, '/'));
+        foreach ($field_selectors as $field_selector) {
+          $field_data = $field_data[$field_selector];
+        }
+        $this->currentItem[$field_name] = $field_data;
+      }
+      if (!empty($this->configuration['include_raw_data'])) {
+        $this->currentItem['raw'] = $current;
+      }
+      $this->iterator->next();
+    }
+  }
+
+}