Decouple resource provider registration

Signed-off-by: Daniel Kesselberg <mail@danielkesselberg.de>

1 files changed, 70 insertions, 0 deletions

diff --git a/lib/private/Collaboration/Resources/ProviderManager.php b/lib/private/Collaboration/Resources/ProviderManager.php
new file mode 100644
index 00000000000..059e42dabab
--- /dev/null
+++ b/lib/private/Collaboration/Resources/ProviderManager.php
@@ -0,0 +1,70 @@
+<?php
+declare(strict_types=1);
+/**
+ * @copyright Copyright (c) 2019 Daniel Kesselberg <mail@danielkesselberg.de>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Collaboration\Resources;
+
+use OCP\AppFramework\QueryException;
+use OCP\Collaboration\Resources\IProvider;
+use OCP\Collaboration\Resources\IProviderManager;
+use OCP\ILogger;
+use OCP\IServerContainer;
+
+class ProviderManager implements IProviderManager {
+
+	/** @var string[] */
+	protected $providers = [];
+
+	/** @var IProvider[] */
+	protected $providerInstances = [];
+
+	/** @var IServerContainer */
+	protected $serverContainer;
+
+	/** @var ILogger */
+	protected $logger;
+
+	public function __construct(IServerContainer $serverContainer, ILogger $logger) {
+		$this->serverContainer = $serverContainer;
+		$this->logger = $logger;
+	}
+
+	public function getResourceProviders(): array {
+		if ($this->providers !== []) {
+			foreach ($this->providers as $provider) {
+				try {
+					$this->providerInstances[] = $this->serverContainer->query($provider);
+				} catch (QueryException $e) {
+					$this->logger->logException($e, [
+						'message' => "Could not query resource provider $provider: " . $e->getMessage()
+					]);
+				}
+			}
+			$this->providers = [];
+		}
+
+		return $this->providerInstances;
+	}
+
+	public function registerResourceProvider(string $provider): void {
+		$this->providers[] = $provider;
+	}
+}