/*
* 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.map.operation;
import com.hazelcast.core.EntryView;
import com.hazelcast.map.record.Record;
import com.hazelcast.map.SimpleEntryView;
import com.hazelcast.map.merge.MapMergePolicy;
import com.hazelcast.map.record.RecordInfo;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.spi.Operation;
import java.io.IOException;
public class MergeOperation extends BasePutOperation {
private MapMergePolicy mergePolicy;
private EntryView<Data, Data> mergingEntry;
private boolean merged = false;
public MergeOperation(String name, Data dataKey, EntryView<Data, Data> entryView, MapMergePolicy policy) {
super(name, dataKey, null);
mergingEntry = entryView;
mergePolicy = policy;
}
public MergeOperation() {
}
public void run() {
SimpleEntryView entryView = (SimpleEntryView) mergingEntry;
entryView.setKey(mapService.toObject(mergingEntry.getKey()));
entryView.setValue(mapService.toObject(mergingEntry.getValue()));
merged = recordStore.merge(dataKey, mergingEntry, mergePolicy);
if (merged) {
Record record = recordStore.getRecord(dataKey);
if (record != null)
dataValue = mapService.toData(record.getValue());
}
}
@Override
public Object getResponse() {
return merged;
}
public boolean shouldBackup() {
return merged;
}
public void afterRun() {
if (merged) {
invalidateNearCaches();
}
}
public Operation getBackupOperation() {
if(dataValue == null) {
return new RemoveBackupOperation(name, dataKey);
}
else {
RecordInfo replicationInfo = mapService.createRecordInfo(mapContainer,
recordStore.getRecord(dataKey));
return new PutBackupOperation(name, dataKey, dataValue, replicationInfo);
}
}
@Override
protected void writeInternal(ObjectDataOutput out) throws IOException {
super.writeInternal(out);
out.writeObject(mergingEntry);
out.writeObject(mergePolicy);
}
@Override
protected void readInternal(ObjectDataInput in) throws IOException {
super.readInternal(in);
mergingEntry = in.readObject();
mergePolicy = in.readObject();
}
@Override
public String toString() {
return "MergeOperation{" + name + "}";
}
}