| /* |
| * 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.geode.internal.cache.backup; |
| |
| import java.util.Arrays; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import org.apache.geode.internal.cache.Oplog; |
| |
| /** |
| * This class manages the state of the backup of an individual disk store. It holds the list of |
| * oplogs that still need to be backed up, along with the lists of oplog files that should be |
| * deleted when the oplog is backed up. See |
| */ |
| public class DiskStoreBackup { |
| |
| private final Set<Oplog> pendingBackup; |
| private final Set<Oplog> deferredCrfDeletes = new HashSet<>(); |
| private final Set<Oplog> deferredDrfDeletes = new HashSet<>(); |
| |
| DiskStoreBackup(Oplog[] allOplogs) { |
| pendingBackup = new HashSet<>(Arrays.asList(allOplogs)); |
| } |
| |
| /** |
| * Add the oplog to the list of deferred deletes. |
| * |
| * @return true if the delete has been deferred. False if this oplog should be deleted |
| * immediately. |
| */ |
| synchronized boolean deferCrfDelete(Oplog oplog) { |
| if (pendingBackup.contains(oplog)) { |
| deferredCrfDeletes.add(oplog); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| /** |
| * Add the oplog to the list of deferred deletes. |
| * |
| * @return true if the delete has been deferred. False if this oplog should be deleted |
| * immediately. |
| */ |
| synchronized boolean deferDrfDelete(Oplog oplog) { |
| if (pendingBackup.contains(oplog)) { |
| deferredDrfDeletes.add(oplog); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| synchronized Set<Oplog> getPendingBackup() { |
| return new HashSet<>(pendingBackup); |
| } |
| |
| synchronized void backupFinished(Oplog oplog) { |
| pendingBackup.remove(oplog); |
| if (deferredCrfDeletes.remove(oplog)) { |
| oplog.deleteCRFFileOnly(); |
| } |
| if (deferredDrfDeletes.remove(oplog)) { |
| oplog.deleteDRFFileOnly(); |
| } |
| } |
| |
| synchronized void cleanup() { |
| for (Oplog oplog : getPendingBackup()) { |
| backupFinished(oplog); |
| } |
| } |
| } |