protected override Task SerializeToStreamAsync(Stream stream, TransportContext context)
{
using (queryOp)
using (accessor)
using (var writer = GetOutputWriter(req, stream))
{
outputContentTypeSetter(writer.ContentType);
writer.WriteHeader();
try
{
queryOp.Execute(o =>
{
_timeout.Delay();
writer.Write(o);
});
}
catch (Exception e)
{
writer.WriteError(e);
}
}
return(Task.FromResult(true));
}
private RavenJArray PerformBulkOperation(string index, IndexQuery indexQuery, bool allowStale, Func <string, TransactionInformation, object> batchOperation)
{
var array = new RavenJArray();
var bulkIndexQuery = new IndexQuery
{
Query = indexQuery.Query,
Start = indexQuery.Start,
Cutoff = indexQuery.Cutoff,
WaitForNonStaleResultsAsOfNow = indexQuery.WaitForNonStaleResultsAsOfNow,
PageSize = int.MaxValue,
FieldsToFetch = new[] { Constants.DocumentIdFieldName },
SortedFields = indexQuery.SortedFields,
HighlighterPreTags = indexQuery.HighlighterPreTags,
HighlighterPostTags = indexQuery.HighlighterPostTags,
HighlightedFields = indexQuery.HighlightedFields,
SortHints = indexQuery.SortHints
};
bool stale;
var queryResults = database.Queries.QueryDocumentIds(index, bulkIndexQuery, token, out stale);
if (stale && allowStale == false)
{
throw new InvalidOperationException(
"Bulk operation cancelled because the index is stale and allowStale is false");
}
const int batchSize = 1024;
using (var enumerator = queryResults.GetEnumerator())
{
while (true)
{
if (timeout != null)
{
timeout.Delay();
}
var batchCount = 0;
database.TransactionalStorage.Batch(actions =>
{
while (batchCount < batchSize && enumerator.MoveNext())
{
batchCount++;
var result = batchOperation(enumerator.Current, transactionInformation);
array.Add(RavenJObject.FromObject(result));
}
});
if (batchCount < batchSize)
{
break;
}
}
}
return(array);
}
