com.hazelcast.concurrent.atomiclong.operations.MergeBackupOperation Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2020, 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.concurrent.atomiclong.operations;
import com.hazelcast.concurrent.atomiclong.AtomicLongContainer;
import com.hazelcast.concurrent.atomiclong.AtomicLongService;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.spi.BackupOperation;
import com.hazelcast.spi.merge.SplitBrainMergePolicy;
import java.io.IOException;
import static com.hazelcast.concurrent.atomiclong.AtomicLongDataSerializerHook.MERGE_BACKUP;
/**
* Creates backups for merged atomic longs after split-brain healing with a {@link SplitBrainMergePolicy}.
*/
public class MergeBackupOperation extends AbstractAtomicLongOperation implements BackupOperation {
private Long newValue;
public MergeBackupOperation() {
}
public MergeBackupOperation(String name, Long newValue) {
super(name);
this.newValue = newValue;
}
@Override
public void run() throws Exception {
if (newValue == null) {
AtomicLongService service = getService();
service.destroyDistributedObject(name);
} else {
AtomicLongContainer container = getLongContainer();
container.set(newValue);
}
}
@Override
public int getId() {
return MERGE_BACKUP;
}
@Override
protected void writeInternal(ObjectDataOutput out) throws IOException {
super.writeInternal(out);
out.writeObject(newValue);
}
@Override
protected void readInternal(ObjectDataInput in) throws IOException {
super.readInternal(in);
newValue = in.readObject();
}
}