private async Task <IReadOnlyList <TKey> > GetKeysAsync(IPredicate predicate, CancellationToken cancellationToken)
{
if (predicate == null)
{
throw new ArgumentNullException(nameof(predicate));
}
var pagingPredicate = UnwrapPagingPredicate(predicate);
if (pagingPredicate != null)
{
pagingPredicate.IterationType = IterationType.Key;
var pagingPredicateHolder = PagingPredicateHolder.Of(predicate, SerializationService);
var requestMessage = MapKeySetWithPagingPredicateCodec.EncodeRequest(Name, pagingPredicateHolder);
var responseMessage = await Cluster.Messaging.SendAsync(requestMessage, cancellationToken).CAF();
var response = MapKeySetWithPagingPredicateCodec.DecodeResponse(responseMessage);
pagingPredicate.UpdateAnchors(response.AnchorDataList.AsAnchorIterator(SerializationService));
return(new ReadOnlyLazyList <TKey>(response.Response, SerializationService));
}
{
var requestMessage = MapKeySetWithPredicateCodec.EncodeRequest(Name, ToData(predicate));
var responseMessage = await(predicate is PartitionPredicate pp
? Cluster.Messaging.SendToKeyPartitionOwnerAsync(requestMessage, SerializationService.ToData(pp.PartitionKey), cancellationToken)
: Cluster.Messaging.SendAsync(requestMessage, cancellationToken))
.CAF();
var response = MapKeySetWithPredicateCodec.DecodeResponse(responseMessage).Response;
return(new ReadOnlyLazyList <TKey>(response, SerializationService));
}
}
private ISet <TKey> KeySetWithPagingPredicate(IPredicate predicate)
{
var pagingPredicate = UnwrapPagingPredicate(predicate);
pagingPredicate.IterationType = IterationType.Key;
var pagingPredicateHolder = PagingPredicateHolder.Of(predicate, Client.SerializationService);
var request = MapKeySetWithPagingPredicateCodec.EncodeRequest(Name, pagingPredicateHolder);
var response = InvokeWithPredicate(request, predicate);
var resultParameters = MapKeySetWithPagingPredicateCodec.DecodeResponse(response);
pagingPredicate.AnchorList = resultParameters.AnchorDataList.AsAnchorIterator(Client.SerializationService).ToList();
return(new ReadOnlyLazySet <TKey>(resultParameters.Response, Client.SerializationService));
}
private ISet <TKey> KeySetWithPagingPredicate(PagingPredicate pagingPredicate)
{
pagingPredicate.IterationType = IterationType.Key;
var request = MapKeySetWithPagingPredicateCodec.EncodeRequest(GetName(), ToData(pagingPredicate));
var response = Invoke(request);
var resultParameters = MapKeySetWithPagingPredicateCodec.DecodeResponse(response);
var resultList = new List <KeyValuePair <object, object> >();
foreach (var keyData in resultParameters.response)
{
var key = ToObject <TKey>(keyData);
resultList.Add(new KeyValuePair <object, object>(key, default(TValue)));
}
var resultEnumerator =
SortingUtil.GetSortedQueryResultSet <TKey, TValue>(resultList, pagingPredicate, IterationType.Key);
return(new HashSet <TKey>(resultEnumerator.Cast <TKey>()));
}
