/*
* 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.impl.operation;
import com.hazelcast.map.EntryBackupProcessor;
import com.hazelcast.map.impl.record.Record;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.nio.serialization.SerializationService;
import com.hazelcast.query.Predicate;
import com.hazelcast.query.impl.QueryEntry;
import com.hazelcast.spi.BackupOperation;
import java.io.IOException;
import java.util.Iterator;
import java.util.Map;
public class PartitionWideEntryBackupOperation extends AbstractMultipleEntryOperation implements BackupOperation {
public PartitionWideEntryBackupOperation() {
}
public PartitionWideEntryBackupOperation(String name, EntryBackupProcessor backupProcessor) {
super(name, backupProcessor);
}
@Override
public void run() {
final long now = getNow();
final Iterator<Record> iterator = recordStore.iterator(now, true);
while (iterator.hasNext()) {
final Record record = iterator.next();
final Data dataKey = record.getKey();
final Object oldValue = record.getValue();
final Object key = toObject(dataKey);
final Object value = toObject(oldValue);
if (!applyPredicate(dataKey, key, value)) {
continue;
}
final Map.Entry entry = createMapEntry(key, value);
processBackup(entry);
if (noOp(entry, oldValue)) {
continue;
}
if (entryRemovedBackup(entry, dataKey)) {
continue;
}
entryAddedOrUpdatedBackup(entry, dataKey);
}
}
@Override
public boolean returnsResponse() {
return true;
}
protected Predicate getPredicate() {
return null;
}
@Override
protected void readInternal(ObjectDataInput in) throws IOException {
super.readInternal(in);
backupProcessor = in.readObject();
}
@Override
protected void writeInternal(ObjectDataOutput out) throws IOException {
super.writeInternal(out);
out.writeObject(backupProcessor);
}
@Override
public Object getResponse() {
return true;
}
@Override
public String toString() {
return "PartitionWideEntryBackupOperation{}";
}
private boolean applyPredicate(Data dataKey, Object key, Object value) {
if (getPredicate() == null) {
return true;
}
final SerializationService ss = getNodeEngine().getSerializationService();
QueryEntry queryEntry = new QueryEntry(ss, dataKey, key, value);
return getPredicate().apply(queryEntry);
}
}