fix(taskrpocessing): Cache result of getAvailableTaskTypes

Signed-off-by: Marcel Klehr <mklehr@gmx.net>

lib/private/TaskProcessing/Manager.php

@@ -733,41 +733,49 @@ class Manager implements IManager {
 	}
 
 	public function getAvailableTaskTypes(bool $showDisabled = false): array {
-		$taskTypes = $this->_getTaskTypes();
-		$taskTypeSettings = $this->_getTaskTypeSettings();
-
-		$availableTaskTypes = [];
-		foreach ($taskTypes as $taskType) {
-			if ((!$showDisabled) && isset($taskTypeSettings[$taskType->getId()]) && !$taskTypeSettings[$taskType->getId()]) {
-				continue;
-			}
-			try {
-				$provider = $this->getPreferredProvider($taskType->getId());
-			} catch (\OCP\TaskProcessing\Exception\Exception $e) {
-				continue;
+		// Either we have no cache or showDisabled is turned on, which we don't want to cache, ever.
+		if ($this->availableTaskTypes === null || $showDisabled) {
+			$taskTypes = $this->_getTaskTypes();
+			$taskTypeSettings = $this->_getTaskTypeSettings();
+
+			$availableTaskTypes = [];
+			foreach ($taskTypes as $taskType) {
+				if ((!$showDisabled) && isset($taskTypeSettings[$taskType->getId()]) && !$taskTypeSettings[$taskType->getId()]) {
+					continue;
+				}
+				try {
+					$provider = $this->getPreferredProvider($taskType->getId());
+				} catch (\OCP\TaskProcessing\Exception\Exception $e) {
+					continue;
+				}
+				try {
+					$availableTaskTypes[$provider->getTaskTypeId()] = [
+						'name' => $taskType->getName(),
+						'description' => $taskType->getDescription(),
+						'optionalInputShape' => $provider->getOptionalInputShape(),
+						'inputShapeEnumValues' => $provider->getInputShapeEnumValues(),
+						'inputShapeDefaults' => $provider->getInputShapeDefaults(),
+						'inputShape' => $taskType->getInputShape(),
+						'optionalInputShapeEnumValues' => $provider->getOptionalInputShapeEnumValues(),
+						'optionalInputShapeDefaults' => $provider->getOptionalInputShapeDefaults(),
+						'outputShape' => $taskType->getOutputShape(),
+						'outputShapeEnumValues' => $provider->getOutputShapeEnumValues(),
+						'optionalOutputShape' => $provider->getOptionalOutputShape(),
+						'optionalOutputShapeEnumValues' => $provider->getOptionalOutputShapeEnumValues(),
+					];
+				} catch (\Throwable $e) {
+					$this->logger->error('Failed to set up TaskProcessing provider ' . $provider::class, ['exception' => $e]);
+				}
 			}
-			try {
-				$availableTaskTypes[$provider->getTaskTypeId()] = [
-					'name' => $taskType->getName(),
-					'description' => $taskType->getDescription(),
-					'optionalInputShape' => $provider->getOptionalInputShape(),
-					'inputShapeEnumValues' => $provider->getInputShapeEnumValues(),
-					'inputShapeDefaults' => $provider->getInputShapeDefaults(),
-					'inputShape' => $taskType->getInputShape(),
-					'optionalInputShapeEnumValues' => $provider->getOptionalInputShapeEnumValues(),
-					'optionalInputShapeDefaults' => $provider->getOptionalInputShapeDefaults(),
-					'outputShape' => $taskType->getOutputShape(),
-					'outputShapeEnumValues' => $provider->getOutputShapeEnumValues(),
-					'optionalOutputShape' => $provider->getOptionalOutputShape(),
-					'optionalOutputShapeEnumValues' => $provider->getOptionalOutputShapeEnumValues(),
-				];
-			} catch (\Throwable $e) {
-				$this->logger->error('Failed to set up TaskProcessing provider ' . $provider::class, ['exception' => $e]);
+
+			if ($showDisabled) {
+				// Do not cache showDisabled, ever.
+				return $availableTaskTypes;
 			}
+
+			$this->availableTaskTypes = $availableTaskTypes;
 		}
 
-		$this->availableTaskTypes = $availableTaskTypes;
-		
 
 		return $this->availableTaskTypes;
 	}