/*
* Copyright (c) 2008-2013, 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.queue;
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;
/**
* @author ali 12/19/12
*/
public class DrainBackupOperation extends QueueOperation implements BackupOperation {
//can be null
Set<Long> itemIdSet;
public DrainBackupOperation() {
}
public DrainBackupOperation(Stringname) {
super(name);
}
public DrainBackupOperation(Stringname, Set<Long> itemIdSet) {
super(name);
this.itemIdSet = itemIdSet;
}
public void run() throws Exception {
getOrCreateContainer().drainFromBackup(itemIdSet);
}
protected void writeInternal(ObjectDataOutputout) throws IOException {
super.writeInternal(out);
if (itemIdSet == null){
out.writeBoolean(false);
}
else {
out.writeBoolean(true);
out.writeInt(itemIdSet.size());
for (LongitemId: itemIdSet){
out.writeLong(itemId);
}
}
}
protected void readInternal(ObjectDataInputin) throws IOException {
super.readInternal(in);
if (in.readBoolean()){
int size = in.readInt();
itemIdSet = new HashSet<Long>(size);
for (int i=0; i<size; i++){
itemIdSet.add(in.readLong());
}
}
}
public int getId() {
return QueueDataSerializerHook.DRAIN_BACKUP;
}
}