com.hazelcast.map.operation.LoadAllOperation Maven / Gradle / Ivy
package com.hazelcast.map.operation;
import com.hazelcast.map.MapServiceContext;
import com.hazelcast.map.RecordStore;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.partition.InternalPartitionService;
import com.hazelcast.spi.PartitionAwareOperation;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
/**
* Triggers map store load of all given keys.
*/
public class LoadAllOperation extends AbstractMapOperation implements PartitionAwareOperation {
private List keys;
private boolean replaceExistingValues;
public LoadAllOperation() {
keys = Collections.emptyList();
}
public LoadAllOperation(String name, List keys, boolean replaceExistingValues) {
super(name);
this.keys = keys;
this.replaceExistingValues = replaceExistingValues;
}
@Override
public void run() throws Exception {
final int partitionId = getPartitionId();
final RecordStore recordStore = mapService.getMapServiceContext().getRecordStore(partitionId, name);
keys = selectThisPartitionsKeys(this.keys);
recordStore.loadAllFromStore(keys, replaceExistingValues);
}
private List selectThisPartitionsKeys(Collection keys) {
final MapServiceContext mapServiceContext = mapService.getMapServiceContext();
final InternalPartitionService partitionService = mapServiceContext.getNodeEngine().getPartitionService();
final int partitionId = getPartitionId();
List dataKeys = null;
for (Data key : keys) {
if (partitionId == partitionService.getPartitionId(key)) {
if (dataKeys == null) {
dataKeys = new ArrayList();
}
dataKeys.add(key);
}
}
if (dataKeys == null) {
return Collections.emptyList();
}
return dataKeys;
}
@Override
protected void writeInternal(ObjectDataOutput out) throws IOException {
super.writeInternal(out);
final int size = keys.size();
out.writeInt(size);
for (Data key : keys) {
key.writeData(out);
}
out.writeBoolean(replaceExistingValues);
}
@Override
protected void readInternal(ObjectDataInput in) throws IOException {
super.readInternal(in);
final int size = in.readInt();
if (size > 0) {
keys = new ArrayList(size);
}
for (int i = 0; i < size; i++) {
Data data = new Data();
data.readData(in);
keys.add(data);
}
replaceExistingValues = in.readBoolean();
}
}