private Collection<Integer> getPartitionsForKeys(Collection<Data> keys) {
int partitions = partitionService.getPartitionCount();
// TODO: is there better way to estimate the size?
int capacity = min(partitions, keys.size());
Set<Integer> partitionIds = new HashSet<Integer>(capacity);
Iterator<Data> iterator = keys.iterator();
while (iterator.hasNext() && partitionIds.size() < partitions) {
Data key = iterator.next();
partitionIds.add(partitionService.getPartitionId(key));
}
return partitionIds;
}
@Override
public Collection<Integer> getPartitions() {
IPartitionService partitionService = nodeEngine.getPartitionService();
int partitions = partitionService.getPartitionCount();
int capacity = Math.min(partitions, parameters.keys.size());
Set<Integer> partitionIds = new HashSet<Integer>(capacity);
Iterator<Data> iterator = parameters.keys.iterator();
while (iterator.hasNext() && partitionIds.size() < partitions) {
Data key = iterator.next();
partitionIds.add(partitionService.getPartitionId(key));
}
return partitionIds;
}
/**
* This method will group all puts per partition and send a {@link
* com.hazelcast.map.impl.operation.PutAllPartitionAwareOperationFactory} per member.
*
* <p>If there are e.g. five keys for a single member, there will only be a single remote
* invocation instead of having five remote invocations.
*
* <p>There is also an optional support for batching to send smaller packages. Takes care about
* {@code null} checks for keys and values.
*/
@SuppressWarnings({"checkstyle:npathcomplexity", "UnnecessaryBoxing"})
@SuppressFBWarnings(
value = "DM_NUMBER_CTOR",
justification = "we need a shared counter object for each member per partition")
protected void putAllInternal(Map<?, ?> map) {
try {
int mapSize = map.size();
if (mapSize == 0) {
return;
}
boolean useBatching = isPutAllUseBatching(mapSize);
int partitionCount = partitionService.getPartitionCount();
int initialSize = getPutAllInitialSize(useBatching, mapSize, partitionCount);
Map<Address, List<Integer>> memberPartitionsMap = partitionService.getMemberPartitionsMap();
// init counters for batching
MutableLong[] counterPerMember = null;
Address[] addresses = null;
if (useBatching) {
counterPerMember = new MutableLong[partitionCount];
addresses = new Address[partitionCount];
for (Entry<Address, List<Integer>> addressListEntry : memberPartitionsMap.entrySet()) {
MutableLong counter = new MutableLong();
Address address = addressListEntry.getKey();
for (int partitionId : addressListEntry.getValue()) {
counterPerMember[partitionId] = counter;
addresses[partitionId] = address;
}
}
}
// fill entriesPerPartition
MapEntries[] entriesPerPartition = new MapEntries[partitionCount];
for (Entry entry : map.entrySet()) {
checkNotNull(entry.getKey(), NULL_KEY_IS_NOT_ALLOWED);
checkNotNull(entry.getValue(), NULL_VALUE_IS_NOT_ALLOWED);
Data keyData = toData(entry.getKey(), partitionStrategy);
int partitionId = partitionService.getPartitionId(keyData);
MapEntries entries = entriesPerPartition[partitionId];
if (entries == null) {
entries = new MapEntries(initialSize);
entriesPerPartition[partitionId] = entries;
}
entries.add(keyData, toData(entry.getValue()));
if (useBatching) {
long currentSize = ++counterPerMember[partitionId].value;
if (currentSize % putAllBatchSize == 0) {
List<Integer> partitions = memberPartitionsMap.get(addresses[partitionId]);
invokePutAllOperation(addresses[partitionId], partitions, entriesPerPartition);
}
}
}
// invoke operations for entriesPerPartition
for (Entry<Address, List<Integer>> entry : memberPartitionsMap.entrySet()) {
invokePutAllOperation(entry.getKey(), entry.getValue(), entriesPerPartition);
}
} catch (Exception e) {
throw rethrow(e);
}
}