| /** |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.aurora.scheduler.storage; |
| |
| import java.util.Optional; |
| import java.util.Set; |
| |
| import org.apache.aurora.scheduler.storage.entities.IHostMaintenanceRequest; |
| |
| /** |
| * Stores maintenance requests for hosts. |
| */ |
| public interface HostMaintenanceStore { |
| |
| /** |
| * Returns the maintenance request for the given host if exists. |
| * {@link Optional#empty()} otherwise. |
| * @param host Name of the host |
| * @return {@link Optional} of {@link IHostMaintenanceRequest} |
| */ |
| Optional<IHostMaintenanceRequest> getHostMaintenanceRequest(String host); |
| |
| /** |
| * Returns all {@link IHostMaintenanceRequest}s currently in storage. |
| * @return {@link Set} of {@link IHostMaintenanceRequest}s |
| */ |
| Set<IHostMaintenanceRequest> getHostMaintenanceRequests(); |
| |
| /** |
| * Provides write operations to the {@link HostMaintenanceStore}. |
| */ |
| interface Mutable extends HostMaintenanceStore { |
| /** |
| * Deletes all attributes in the store. |
| */ |
| void deleteHostMaintenanceRequests(); |
| |
| /** |
| * Saves the maintenance request for the given host. |
| * @param hostMaintenanceRequest {@link IHostMaintenanceRequest} |
| */ |
| void saveHostMaintenanceRequest(IHostMaintenanceRequest hostMaintenanceRequest); |
| |
| /** |
| * Removes the maintenance request for the given host if one exists. |
| * @param host Name of the host |
| */ |
| void removeHostMaintenanceRequest(String host); |
| } |
| } |