com.hazelcast.cache.impl.operation.CacheMergeOperationFactory Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2018, 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.cache.impl.operation;
import com.hazelcast.cache.impl.CacheDataSerializerHook;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.spi.Operation;
import com.hazelcast.spi.impl.operationservice.impl.operations.PartitionAwareOperationFactory;
import com.hazelcast.spi.merge.SplitBrainMergePolicy;
import com.hazelcast.spi.merge.SplitBrainMergeTypes.CacheMergeTypes;
import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
/**
* Inserts the merging entries for all partitions of a member via locally invoked {@link CacheMergeOperation}.
*
* @since 3.10
*/
public class CacheMergeOperationFactory extends PartitionAwareOperationFactory {
private String name;
private List[] mergingEntries;
private SplitBrainMergePolicy mergePolicy;
public CacheMergeOperationFactory() {
}
@SuppressFBWarnings("EI_EXPOSE_REP2")
public CacheMergeOperationFactory(String name, int[] partitions, List[] mergingEntries,
SplitBrainMergePolicy mergePolicy) {
this.name = name;
this.partitions = partitions;
this.mergingEntries = mergingEntries;
this.mergePolicy = mergePolicy;
}
@Override
public Operation createPartitionOperation(int partitionId) {
for (int i = 0; i < partitions.length; i++) {
if (partitions[i] == partitionId) {
return new CacheMergeOperation(name, mergingEntries[i], mergePolicy);
}
}
throw new IllegalArgumentException("Unknown partitionId " + partitionId + " (" + Arrays.toString(partitions) + ")");
}
@Override
public void writeData(ObjectDataOutput out) throws IOException {
out.writeUTF(name);
out.writeIntArray(partitions);
for (List list : mergingEntries) {
out.writeInt(list.size());
for (CacheMergeTypes mergingEntry : list) {
out.writeObject(mergingEntry);
}
}
out.writeObject(mergePolicy);
}
@Override
public void readData(ObjectDataInput in) throws IOException {
name = in.readUTF();
partitions = in.readIntArray();
//noinspection unchecked
mergingEntries = new List[partitions.length];
for (int partitionIndex = 0; partitionIndex < partitions.length; partitionIndex++) {
int size = in.readInt();
List list = new ArrayList(size);
for (int i = 0; i < size; i++) {
CacheMergeTypes mergingEntry = in.readObject();
list.add(mergingEntry);
}
mergingEntries[partitionIndex] = list;
}
mergePolicy = in.readObject();
}
@Override
public int getFactoryId() {
return CacheDataSerializerHook.F_ID;
}
@Override
public int getId() {
return CacheDataSerializerHook.MERGE_FACTORY;
}
}