com.hazelcast.collection.impl.queue.operations.ClearBackupOperation Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2016, Hazelcast, Inc. All Rights Reserved.
*
* 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 com.hazelcast.collection.impl.queue.operations;
import com.hazelcast.collection.impl.queue.QueueContainer;
import com.hazelcast.collection.impl.queue.QueueDataSerializerHook;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.spi.BackupOperation;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;
/**
* Store items' id as set when ClearOperation run.
*/
public class ClearBackupOperation extends QueueOperation implements BackupOperation {
private Set itemIdSet;
public ClearBackupOperation() {
}
public ClearBackupOperation(String name, Set itemIdSet) {
super(name);
this.itemIdSet = itemIdSet;
}
@Override
public void run() throws Exception {
QueueContainer queueContainer = getContainer();
queueContainer.clearBackup(itemIdSet);
response = true;
}
@Override
public int getId() {
return QueueDataSerializerHook.CLEAR_BACKUP;
}
@Override
protected void writeInternal(ObjectDataOutput out) throws IOException {
super.writeInternal(out);
out.writeInt(itemIdSet.size());
for (Long itemId : itemIdSet) {
out.writeLong(itemId);
}
}
@Override
protected void readInternal(ObjectDataInput in) throws IOException {
super.readInternal(in);
int size = in.readInt();
itemIdSet = new HashSet(size);
for (int i = 0; i < size; i++) {
itemIdSet.add(in.readLong());
}
}
}