initial commit

composer.json

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+{
+  "name": "drupal/islandora_fits",
+  "type": "drupal-module",
+  "description": "Enables Technical Metadata derivative generation",
+  "keywords": ["Drupal"],
+  "license": "GPL-2.0+",
+  "homepage": "https://www.drupal.org/project/islandora_fits",
+  "minimum-stability": "dev",
+  "support": {
+    "issues": "https://www.drupal.org/project/issues/islandora_fits",
+    "source": "http://cgit.drupalcode.org/islandora_fits"
+  },
+  "require": { }
+}

islandora_fits.info.yml

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+name: 'Islandora Fits'
+type: module
+description: 'Enables Technical Metadata derivative generation'
+core: 8.x
+package: 'Custom'
+dependencies:
+  - islandora

islandora_fits.module

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+<?php
+
+/**
+ * @file
+ * Contains islandora_fits.module.
+ */
+
+use Drupal\Core\Routing\RouteMatchInterface;
+
+/**
+ * Implements hook_help().
+ */
+function islandora_fits_help($route_name, RouteMatchInterface $route_match) {
+  switch ($route_name) {
+    // Main module help for the islandora_fits module.
+    case 'help.page.islandora_fits':
+      $output = '';
+      $output .= '<h3>' . t('About') . '</h3>';
+      $output .= '<p>' . t('Enables Technical Metadata derivative generation') . '</p>';
+      return $output;
+
+    default:
+  }
+}

src/Plugin/Action/GenerateFitsDerivative.php

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+<?php
+
+namespace Drupal\islandora_fits\Plugin\Action;
+
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\islandora\Plugin\Action\AbstractGenerateDerivative;
+
+/**
+ * Emits a Node for generating fits derivatives event.
+ *
+ * @Action(
+ *   id = "generate_fits_derivative",
+ *   label = @Translation("Generate a Technical metadata derivative"),
+ *   type = "node"
+ * )
+ */
+class GenerateFitsDerivative extends AbstractGenerateDerivative {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function defaultConfiguration() {
+    $config = parent::defaultConfiguration();
+    $config['path'] = '[date:custom:Y]-[date:custom:m]/[node:nid]-[term:name].xml';
+    $config['mimetype'] = 'application/xml';
+    $config['queue'] = 'islandora-connector-fits';
+    $config['destination_media_type'] = 'file';
+    return $config;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
+    $form = parent::buildConfigurationForm($form, $form_state);
+    $form['mimetype']['#description'] = t('Mimetype to convert to (e.g. application/xml, etc...)');
+    $form['mimetype']['#value'] = 'application/xml';
+    $form['mimetype']['#type'] = 'hidden';
+
+    unset($form['args']);
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function validateConfigurationForm(array &$form, FormStateInterface $form_state) {
+    parent::validateConfigurationForm($form, $form_state);
+    $exploded_mime = explode('/', $form_state->getValue('mimetype'));
+    if ($exploded_mime[0] != 'application') {
+      $form_state->setErrorByName(
+        'mimetype',
+        t('Please enter file mimetype (e.g. application/xml.)')
+      );
+    }
+  }
+
+}

tests/src/Functional/LoadTest.php

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+<?php
+
+namespace Drupal\Tests\islandora_fits\Functional;
+
+use Drupal\Core\Url;
+use Drupal\Tests\BrowserTestBase;
+
+/**
+ * Simple test to ensure that main page loads with module enabled.
+ *
+ * @group islandora_fits
+ */
+class LoadTest extends BrowserTestBase {
+
+  /**
+   * Modules to enable.
+   *
+   * @var array
+   */
+  public static $modules = ['islandora_fits'];
+
+  /**
+   * A user with permission to administer site configuration.
+   *
+   * @var \Drupal\user\UserInterface
+   */
+  protected $user;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp() {
+    parent::setUp();
+    $this->user = $this->drupalCreateUser(['administer site configuration']);
+    $this->drupalLogin($this->user);
+  }
+
+  /**
+   * Tests that the home page loads with a 200 response.
+   */
+  public function testLoad() {
+    $this->drupalGet(Url::fromRoute('<front>'));
+    $this->assertSession()->statusCodeEquals(200);
+  }
+
+}