Decouple resource provider registration

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

4 files changed, 81 insertions, 27 deletions

diff --git a/lib/private/AppFramework/DependencyInjection/DIContainer.php b/lib/private/AppFramework/DependencyInjection/DIContainer.php
index 5d7f60265e6..13041532927 100644
--- a/lib/private/AppFramework/DependencyInjection/DIContainer.php
+++ b/lib/private/AppFramework/DependencyInjection/DIContainer.php
@@ -290,6 +290,7 @@ class DIContainer extends SimpleContainer implements IAppContainer {
 			return $dispatcher;
 		});
 
+		$this->registerAlias(\OCP\Collaboration\Resources\IProviderManager::class, OC\Collaboration\Resources\ProviderManager::class);
 		$this->registerAlias(\OCP\Collaboration\Resources\IManager::class, OC\Collaboration\Resources\Manager::class);
 	}
 
diff --git a/lib/private/Collaboration/Resources/Manager.php b/lib/private/Collaboration/Resources/Manager.php
index 0c1336bf090..82731cbdb44 100644
--- a/lib/private/Collaboration/Resources/Manager.php
+++ b/lib/private/Collaboration/Resources/Manager.php
@@ -35,6 +35,7 @@ use OCP\Collaboration\Resources\CollectionException;
 use OCP\Collaboration\Resources\ICollection;
 use OCP\Collaboration\Resources\IManager;
 use OCP\Collaboration\Resources\IProvider;
+use OCP\Collaboration\Resources\IProviderManager;
 use OCP\Collaboration\Resources\IResource;
 use OCP\Collaboration\Resources\ResourceException;
 use OCP\DB\QueryBuilder\IQueryBuilder;
@@ -50,17 +51,18 @@ class Manager implements IManager {
 
 	/** @var IDBConnection */
 	protected $connection;
+	/** @var IProviderManager */
+	protected $providerManager;
 	/** @var ILogger */
 	protected $logger;
 
 	/** @var string[] */
 	protected $providers = [];
 
-	/** @var IProvider[] */
-	protected $providerInstances = [];
 
-	public function __construct(IDBConnection $connection, ILogger $logger) {
+	public function __construct(IDBConnection $connection, IProviderManager $providerManager, ILogger $logger) {
 		$this->connection = $connection;
+		$this->providerManager = $providerManager;
 		$this->logger = $logger;
 	}
 
@@ -274,27 +276,6 @@ class Manager implements IManager {
 	}
 
 	/**
-	 * @return IProvider[]
-	 * @since 16.0.0
-	 */
-	public function getProviders(): array {
-		if (!empty($this->providers)) {
-			foreach ($this->providers as $provider) {
-				try {
-					$this->providerInstances[] = \OC::$server->query($provider);
-				} catch (QueryException $e) {
-					$this->logger->logException($e, [
-						'message' => 'Error when instantiating resource provider'
-					]);
-				}
-			}
-			$this->providers = [];
-		}
-
-		return $this->providerInstances;
-	}
-
-	/**
 	 * Get the rich object data of a resource
 	 *
 	 * @param IResource $resource
@@ -302,7 +283,7 @@ class Manager implements IManager {
 	 * @since 16.0.0
 	 */
 	public function getResourceRichObject(IResource $resource): array {
-		foreach ($this->getProviders() as $provider) {
+		foreach ($this->providerManager->getResourceProviders() as $provider) {
 			if ($provider->getType() === $resource->getType()) {
 				try {
 					return $provider->getResourceRichObject($resource);
@@ -329,7 +310,7 @@ class Manager implements IManager {
 		}
 
 		$access = false;
-		foreach ($this->getProviders() as $provider) {
+		foreach ($this->providerManager->getResourceProviders() as $provider) {
 			if ($provider->getType() === $resource->getType()) {
 				try {
 					if ($provider->canAccessResource($resource, $user)) {
@@ -532,7 +513,8 @@ class Manager implements IManager {
 	 * @param string $provider
 	 */
 	public function registerResourceProvider(string $provider): void {
-		$this->providers[] = $provider;
+		$this->logger->debug('\OC\Collaboration\Resources\Manager::registerResourceProvider is deprecated', ['provider' => $provider]);
+		$this->providerManager->registerResourceProvider($provider);
 	}
 
 	/**
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;
+	}
+}
diff --git a/lib/private/Server.php b/lib/private/Server.php
index f49bc2364bd..d16b55ac215 100644
--- a/lib/private/Server.php
+++ b/lib/private/Server.php
@@ -1086,6 +1086,7 @@ class Server extends ServerContainer implements IServerContainer {
 
 		$this->registerAlias(\OCP\Collaboration\AutoComplete\IManager::class, \OC\Collaboration\AutoComplete\Manager::class);
 
+		$this->registerAlias(\OCP\Collaboration\Resources\IProviderManager::class, \OC\Collaboration\Resources\ProviderManager::class);
 		$this->registerAlias(\OCP\Collaboration\Resources\IManager::class, \OC\Collaboration\Resources\Manager::class);
 
 		$this->registerService('SettingsManager', function (Server $c) {