com.hazelcast.map.impl.operation.MapReplicationOperation Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2016, 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.config.MapConfig;
import com.hazelcast.map.impl.MapContainer;
import com.hazelcast.map.impl.MapService;
import com.hazelcast.map.impl.MapServiceContext;
import com.hazelcast.map.impl.PartitionContainer;
import com.hazelcast.map.impl.mapstore.writebehind.WriteBehindQueue;
import com.hazelcast.map.impl.mapstore.writebehind.WriteBehindStore;
import com.hazelcast.map.impl.mapstore.writebehind.entry.DelayedEntries;
import com.hazelcast.map.impl.mapstore.writebehind.entry.DelayedEntry;
import com.hazelcast.map.impl.record.Record;
import com.hazelcast.map.impl.record.RecordInfo;
import com.hazelcast.map.impl.record.RecordReplicationInfo;
import com.hazelcast.map.impl.record.Records;
import com.hazelcast.map.impl.recordstore.RecordStore;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.spi.AbstractOperation;
import com.hazelcast.spi.impl.MutatingOperation;
import com.hazelcast.util.Clock;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import static com.hazelcast.map.impl.record.Records.applyRecordInfo;
public class MapReplicationOperation extends AbstractOperation implements MutatingOperation {
private Map> data;
private Map> delayedEntries;
public MapReplicationOperation() {
}
public MapReplicationOperation(MapService mapService, PartitionContainer container, int partitionId,
int replicaIndex) {
this.setPartitionId(partitionId).setReplicaIndex(replicaIndex);
data = new HashMap>(container.getMaps().size());
for (Entry entry : container.getMaps().entrySet()) {
RecordStore recordStore = entry.getValue();
MapContainer mapContainer = recordStore.getMapContainer();
final MapConfig mapConfig = mapContainer.getMapConfig();
if (mapConfig.getTotalBackupCount() < replicaIndex) {
continue;
}
String name = entry.getKey();
// now prepare data to migrate records
Set recordSet = new HashSet(recordStore.size());
final Iterator iterator = recordStore.iterator();
while (iterator.hasNext()) {
Record record = iterator.next();
Data key = record.getKey();
RecordReplicationInfo recordReplicationInfo;
recordReplicationInfo = createRecordReplicationInfo(key, record, mapService);
recordSet.add(recordReplicationInfo);
}
data.put(name, recordSet);
}
readDelayedEntries(container);
}
private void readDelayedEntries(PartitionContainer container) {
delayedEntries = new HashMap>(container.getMaps().size());
for (Entry entry : container.getMaps().entrySet()) {
RecordStore recordStore = entry.getValue();
MapContainer mapContainer = recordStore.getMapContainer();
if (!mapContainer.getMapStoreContext().isWriteBehindMapStoreEnabled()) {
continue;
}
final WriteBehindQueue writeBehindQueue = ((WriteBehindStore) recordStore.getMapDataStore())
.getWriteBehindQueue();
final Collection delayedEntries = writeBehindQueue.asList();
if (delayedEntries != null && delayedEntries.size() == 0) {
continue;
}
this.delayedEntries.put(entry.getKey(), delayedEntries);
}
}
@Override
public void run() {
MapService mapService = getService();
final MapServiceContext mapServiceContext = mapService.getMapServiceContext();
if (data != null) {
for (Entry> dataEntry : data.entrySet()) {
Set recordReplicationInfos = dataEntry.getValue();
final String mapName = dataEntry.getKey();
RecordStore recordStore = mapServiceContext.getRecordStore(getPartitionId(), mapName);
recordStore.reset();
for (RecordReplicationInfo recordReplicationInfo : recordReplicationInfos) {
Data key = recordReplicationInfo.getKey();
final Data value = recordReplicationInfo.getValue();
Record newRecord = recordStore.createRecord(value, -1L, Clock.currentTimeMillis());
applyRecordInfo(newRecord, recordReplicationInfo);
recordStore.putRecord(key, newRecord);
}
}
}
for (Entry> entry : delayedEntries.entrySet()) {
RecordStore recordStore = mapServiceContext.getRecordStore(getPartitionId(), entry.getKey());
WriteBehindStore mapDataStore = (WriteBehindStore) recordStore.getMapDataStore();
mapDataStore.clear();
Collection replicatedEntries = entry.getValue();
for (DelayedEntry delayedEntry : replicatedEntries) {
mapDataStore.add(delayedEntry);
}
}
}
@Override
public String getServiceName() {
return MapService.SERVICE_NAME;
}
@Override
protected void readInternal(final ObjectDataInput in) throws IOException {
int size = in.readInt();
data = new HashMap>(size);
for (int i = 0; i < size; i++) {
String name = in.readUTF();
int mapSize = in.readInt();
Set recordReplicationInfos = new HashSet(mapSize);
for (int j = 0; j < mapSize; j++) {
RecordReplicationInfo recordReplicationInfo = in.readObject();
recordReplicationInfos.add(recordReplicationInfo);
}
data.put(name, recordReplicationInfos);
}
size = in.readInt();
delayedEntries = new HashMap>(size);
for (int i = 0; i < size; i++) {
final String mapName = in.readUTF();
final int listSize = in.readInt();
final List delayedEntriesList = new ArrayList(listSize);
for (int j = 0; j < listSize; j++) {
Data key = in.readData();
Data value = in.readData();
long storeTime = in.readLong();
int partitionId = in.readInt();
DelayedEntry entry = DelayedEntries.createDefault(key, value, storeTime, partitionId);
delayedEntriesList.add(entry);
}
delayedEntries.put(mapName, delayedEntriesList);
}
}
@Override
protected void writeInternal(final ObjectDataOutput out) throws IOException {
out.writeInt(data.size());
for (Entry> mapEntry : data.entrySet()) {
out.writeUTF(mapEntry.getKey());
Set recordReplicationInfos = mapEntry.getValue();
out.writeInt(recordReplicationInfos.size());
for (RecordReplicationInfo recordReplicationInfo : recordReplicationInfos) {
out.writeObject(recordReplicationInfo);
}
}
final MapService mapService = getService();
final MapServiceContext mapServiceContext = mapService.getMapServiceContext();
out.writeInt(delayedEntries.size());
for (Entry> entry : delayedEntries.entrySet()) {
out.writeUTF(entry.getKey());
final Collection delayedEntryList = entry.getValue();
out.writeInt(delayedEntryList.size());
for (DelayedEntry e : delayedEntryList) {
final Data key = mapServiceContext.toData(e.getKey());
final Data value = mapServiceContext.toData(e.getValue());
out.writeData(key);
out.writeData(value);
out.writeLong(e.getStoreTime());
out.writeInt(e.getPartitionId());
}
}
}
public boolean isEmpty() {
return (data == null || data.isEmpty())
&& (delayedEntries == null || delayedEntries.isEmpty());
}
private RecordReplicationInfo createRecordReplicationInfo(Data key, Record record, MapService mapService) {
final RecordInfo info = Records.buildRecordInfo(record);
return new RecordReplicationInfo(key, mapService.getMapServiceContext().toData(record.getValue()),
info);
}
}