/*
* 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;
import java.io.File;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
import org.apache.geode.internal.cache.persistence.BackupInspector;
/**
* 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
* {@link DiskStoreImpl#startBackup(File, BackupInspector, org.apache.geode.internal.cache.persistence.RestoreScript)}
*
*
*/
public class DiskStoreBackup {
private final Set<Oplog> pendingBackup;
private final Set<Oplog> deferredCrfDeletes = new HashSet<Oplog>();
private final Set<Oplog> deferredDrfDeletes = new HashSet<Oplog>();
private final File targetDir;
public DiskStoreBackup(Oplog[] allOplogs, File targetDir) {
this.pendingBackup = new HashSet<Oplog>(Arrays.asList(allOplogs));
this.targetDir = targetDir;
}
/**
* 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.
*/
public 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.
*/
public synchronized boolean deferDrfDelete(Oplog oplog) {
if (pendingBackup.contains(oplog)) {
deferredDrfDeletes.add(oplog);
return true;
}
return false;
}
public synchronized Set<Oplog> getPendingBackup() {
return new HashSet<Oplog>(pendingBackup);
}
public synchronized void backupFinished(Oplog oplog) {
pendingBackup.remove(oplog);
if (deferredCrfDeletes.remove(oplog)) {
oplog.deleteCRFFileOnly();
}
if (deferredDrfDeletes.remove(oplog)) {
oplog.deleteDRFFileOnly();
}
}
public File getTargetDir() {
return targetDir;
}
public synchronized void cleanup() {
for (Oplog oplog : getPendingBackup()) {
backupFinished(oplog);
}
}
}