| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.rya.indexing.pcj.fluo.api; |
| |
| import org.apache.fluo.api.client.FluoClient; |
| import org.apache.rya.indexing.pcj.fluo.app.query.UnsupportedQueryException; |
| import org.apache.rya.indexing.pcj.storage.PeriodicQueryResultStorage; |
| import org.apache.rya.indexing.pcj.storage.PeriodicQueryStorageException; |
| import org.apache.rya.periodic.notification.api.PeriodicNotificationClient; |
| import org.apache.rya.periodic.notification.notification.BasicNotification; |
| |
| import com.google.common.base.Preconditions; |
| |
| public class DeletePeriodicQuery { |
| |
| private FluoClient fluo; |
| private PeriodicQueryResultStorage periodicStorage; |
| |
| public DeletePeriodicQuery(FluoClient fluo, PeriodicQueryResultStorage periodicStorage) { |
| this.fluo = fluo; |
| this.periodicStorage = periodicStorage; |
| } |
| |
| /** |
| * Deletes the Periodic Query with the indicated pcjId from Fluo and {@link PeriodicQueryResultStorage}. |
| * @param pcjId - Id of the Periodic Query to be deleted |
| */ |
| public void deletePeriodicQuery(String pcjId) throws QueryDeletionException { |
| |
| Preconditions.checkNotNull(pcjId); |
| |
| DeleteFluoPcj deletePcj = new DeleteFluoPcj(1000); |
| try { |
| deletePcj.deletePcj(fluo, pcjId); |
| periodicStorage.deletePeriodicQuery(pcjId); |
| } catch (UnsupportedQueryException | PeriodicQueryStorageException e) { |
| throw new QueryDeletionException(String.format("Unable to delete the Periodic Query with Id: %s", pcjId), e); |
| } |
| |
| } |
| |
| /** |
| * Deletes the Periodic Query with the indicated pcjId from Fluo and {@link PeriodicQueryResultStorage}. In |
| * addition, this method also informs the Periodic Notification Service to stop generating PeriodicNotifications |
| * associated with the Periodic Query. |
| * |
| * @param queryId - Id of the Periodic Query to be deleted |
| * @param periodicClient - Client used to inform the Periodic Notification Service to stop generating notifications |
| * @throws QueryDeletionException |
| */ |
| public void deletePeriodicQuery(String pcjId, PeriodicNotificationClient periodicClient) throws QueryDeletionException { |
| |
| Preconditions.checkNotNull(periodicClient); |
| |
| deletePeriodicQuery(pcjId); |
| periodicClient.deleteNotification(new BasicNotification(pcjId)); |
| } |
| |
| /** |
| * This Exception is thrown when a problem is encountered while deleting a |
| * query from the Fluo Application or the underlying storage layer. |
| */ |
| public static class QueryDeletionException extends Exception { |
| |
| private static final long serialVersionUID = 1L; |
| |
| public QueryDeletionException(String message) { |
| super(message); |
| } |
| |
| public QueryDeletionException(String message, Exception e) { |
| super(message, e); |
| } |
| } |
| |
| } |