public IEnumerator <BlittableJsonReaderObject> SetResult(StreamResult response)
{
if (response == null)
{
throw new InvalidOperationException("The index does not exists, failed to stream results");
}
var state = new JsonParserState();
JsonOperationContext.ManagedPinnedBuffer buffer;
using (response.Response)
using (response.Stream)
using (var parser = new UnmanagedJsonParser(_session.Context, state, "stream contents"))
using (_session.Context.GetManagedBuffer(out buffer))
using (var peepingTomStream = new PeepingTomStream(response.Stream, _session.Context))
{
if (UnmanagedJsonParserHelper.Read(peepingTomStream, parser, state, buffer) == false)
{
UnmanagedJsonParserHelper.ThrowInvalidJson(peepingTomStream);
}
if (state.CurrentTokenType != JsonParserToken.StartObject)
{
UnmanagedJsonParserHelper.ThrowInvalidJson(peepingTomStream);
}
if (_isQueryStream)
{
HandleStreamQueryStats(_session.Context, response, parser, state, buffer, _statistics);
}
var property = UnmanagedJsonParserHelper.ReadString(_session.Context, peepingTomStream, parser, state, buffer);
if (string.Equals(property, "Results") == false)
{
UnmanagedJsonParserHelper.ThrowInvalidJson(peepingTomStream);
}
foreach (var result in UnmanagedJsonParserHelper.ReadArrayToMemory(_session.Context, peepingTomStream, parser, state, buffer))
{
yield return(result);
}
if (UnmanagedJsonParserHelper.Read(peepingTomStream, parser, state, buffer) == false)
{
UnmanagedJsonParserHelper.ThrowInvalidJson(peepingTomStream);
}
if (state.CurrentTokenType != JsonParserToken.EndObject)
{
UnmanagedJsonParserHelper.ThrowInvalidJson(peepingTomStream);
}
}
}
internal static IEnumerable <ReplayProgress> Replay(DocumentDatabase database, Stream replayStream)
{
DocumentsOperationContext txCtx = null;
IDisposable txDisposable = null;
DocumentsTransaction previousTx = null;
using (database.DocumentsStorage.ContextPool.AllocateOperationContext(out DocumentsOperationContext context))
using (context.GetManagedBuffer(out var buffer))
using (var gZipStream = new GZipStream(replayStream, CompressionMode.Decompress, leaveOpen: true))
{
var peepingTomStream = new PeepingTomStream(gZipStream, context);
var state = new JsonParserState();
var parser = new UnmanagedJsonParser(context, state, "file");
var commandsProgress = 0;
var readers = UnmanagedJsonParserHelper.ReadArrayToMemory(context, peepingTomStream, parser, state, buffer);
using (var readersItr = readers.GetEnumerator())
{
ReadStartRecordingDetails(readersItr, context, peepingTomStream);
while (readersItr.MoveNext())
{
using (readersItr.Current)
{
if (readersItr.Current.TryGet(nameof(RecordingDetails.Type), out string strType) == false)
{
throw new ReplayTransactionsException($"Can't read {nameof(RecordingDetails.Type)} of replay detail", peepingTomStream);
}
if (Enum.TryParse <TxInstruction>(strType, true, out var type))
{
switch (type)
{
case TxInstruction.BeginTx:
txDisposable = database.DocumentsStorage.ContextPool.AllocateOperationContext(out txCtx);
txCtx.OpenWriteTransaction();
break;
case TxInstruction.Commit:
txCtx.Transaction.Commit();
break;
case TxInstruction.DisposeTx:
txDisposable.Dispose();
break;
case TxInstruction.BeginAsyncCommitAndStartNewTransaction:
previousTx = txCtx.Transaction;
txCtx.Transaction = txCtx.Transaction.BeginAsyncCommitAndStartNewTransaction(txCtx);
txDisposable = txCtx.Transaction;
break;
case TxInstruction.EndAsyncCommit:
previousTx.EndAsyncCommit();
break;
case TxInstruction.DisposePrevTx:
previousTx.Dispose();
break;
}
continue;
}
try
{
var cmd = DeserializeCommand(context, database, strType, readersItr.Current, peepingTomStream);
commandsProgress += cmd.ExecuteDirectly(txCtx);
TransactionOperationsMerger.UpdateGlobalReplicationInfoBeforeCommit(txCtx);
}
catch (Exception)
{
//TODO To accept exceptions that was thrown while recording
txDisposable.Dispose();
throw;
}
yield return(new ReplayProgress
{
CommandsProgress = commandsProgress
});
}
}
}
}
}