public EventSourceVersion GetLastCommittedVersion(EventSource eventSource, Guid eventSourceId)
{
var version = EventSourceVersion.Zero;
_client
.ExecuteStoredProcedureAsync<double>(_getLastCommittedVersionStoredProcedure.SelfLink, eventSourceId)
.ContinueWith(t => version = EventSourceVersion.FromCombined(t.Result))
.Wait();
return version;
}
public CommittedEventStream GetForEventSource(EventSource eventSource, Guid eventSourceId)
{
var eventSourceType = eventSource.GetType();
var query = Query.And(
Query.EQ("EventSourceId", eventSourceId),
Query.EQ("EventSource", eventSourceType.AssemblyQualifiedName)
);
var cursor = _collection.FindAs<BsonDocument>(query);
var documents = cursor.ToArray();
var events = ToEvents(documents);
var stream = new CommittedEventStream(eventSourceId);
stream.Append(events);
return stream;
}
public CommittedEventStream GetForEventSource(EventSource eventSource, Guid eventSourceId)
{
using (var session = _documentStore.OpenSession())
{
var eventSourceType = eventSource.GetType();
var events = session.Query<IEvent>()
.Where(
e => e.EventSourceId == eventSourceId &&
e.EventSource == eventSourceType.AssemblyQualifiedName
).ToArray();
var stream = new CommittedEventStream(eventSourceId);
stream.Append(events);
return stream;
}
}
public EventSourceVersion GetLastCommittedVersion(EventSource eventSource, Guid eventSourceId)
{
var eventSourceParam = new OracleParameter(EventParameters.EVENTSOURCE, OracleDbType.NVarchar2, 512);
eventSourceParam.Value = eventSource.GetType().AssemblyQualifiedName;
var eventSourceIdParam = new OracleParameter(EventParameters.EVENTSOURCEID, OracleDbType.Raw, 16);
eventSourceIdParam.Value = eventSourceId.ToByteArray();
var version = EventSourceVersion.Zero;
try
{
OpenConnection();
using (var command = _connection.CreateCommand())
{
command.CommandText = LAST_VERSION_STATEMENT;
command.Parameters.Add(eventSourceIdParam);
command.Parameters.Add(eventSourceParam);
command.BindByName = true;
var reader = command.ExecuteReader(CommandBehavior.SingleResult);
if (reader.Read())
{
version = EventSourceVersion.FromCombined(Convert.ToDouble(reader.GetDecimal(0)));
}
}
}
finally
{
EnsureConnectionClosed(_connection);
}
return version;
}
public CommittedEventStream GetForEventSource(EventSource eventSource, Guid eventSourceId)
{
var committedEventStream = new CommittedEventStream(eventSourceId);
var eventSourceParam = new OracleParameter(EventParameters.EVENTSOURCE, OracleDbType.NVarchar2, 512);
eventSourceParam.Value = eventSource.GetType().AssemblyQualifiedName;
var eventSourceIdParam = new OracleParameter(EventParameters.EVENTSOURCEID, OracleDbType.Raw, 16);
eventSourceIdParam.Value = eventSourceId.ToByteArray();
var eventDtos = new List<EventDto>();
try
{
OpenConnection();
using (var command = _connection.CreateCommand())
{
command.CommandText = READ_STATEMENT_FOR_EVENTS_BY_AGGREGATE_ROOT;
command.Parameters.Add(eventSourceIdParam);
command.Parameters.Add(eventSourceParam);
command.BindByName = true;
var reader = command.ExecuteReader();
while (reader.Read())
{
eventDtos.Add(MapReaderToEventDto(reader));
}
}
}
finally
{
EnsureConnectionClosed(_connection);
}
var retrievedEvents = eventDtos.Select(BuildEventInstanceFromDto)
.Select(@event => _eventMigratorManager.Migrate(@event))
.ToList();
if (retrievedEvents.Any())
committedEventStream.Append(retrievedEvents);
return committedEventStream;
}
public EventSourceVersion GetLastCommittedVersion(EventSource eventSource, Guid eventSourceId)
{
using (var session = _documentStore.OpenSession())
{
var @event = session.Query<IEvent>()
.Where(e => e.EventSourceId == eventSourceId)
.OrderByDescending(e => e.Version)
.FirstOrDefault();
if (@event == null)
return EventSourceVersion.Zero;
return @event.Version;
}
}
public EventSourceVersion GetLastCommittedVersion(EventSource eventSource, Guid eventSourceId)
{
var query = Query.EQ("EventSourceId", eventSourceId);
var sort = SortBy.Descending(Version);
var @event = _collection.FindAs<BsonDocument>(query).SetSortOrder(sort).FirstOrDefault();
if (@event == null)
return EventSourceVersion.Zero;
return EventSourceVersion.FromCombined(@event[Version].AsDouble);
}
public EventSourceVersion GetLastCommittedVersion(EventSource eventSource, Guid eventSourceId)
{
var eventStoreVersion = _eventStore.GetLastCommittedVersion(eventSource, eventSourceId);
var sagaVersion = _saga.GetLastCommittedVersion(eventSource, eventSourceId);
return new[] { eventStoreVersion, sagaVersion }.Max();
}
public CommittedEventStream GetCommittedEventsFor(EventSource eventSource, Guid eventSourceId)
{
var stream = _eventStore.GetForEventSource(eventSource, eventSourceId);
var sagaStream = _saga.GetForEventSource(eventSource, eventSourceId);
stream.Append(sagaStream);
return stream;
}
#pragma warning disable 1591
public CommittedEventStream GetForEventSource(EventSource eventSource, Guid eventSourceId)
{
throw new NotImplementedException();
}
public EventSourceVersion GetLastCommittedVersion(EventSource eventSource, Guid eventSourceId)
{
return _eventStore.GetLastCommittedVersion(eventSource, eventSourceId);
}
public CommittedEventStream GetCommittedEventsFor(EventSource eventSource, Guid eventSourceId)
{
return _eventStore.GetForEventSource(eventSource, eventSourceId);
}
public EventSourceVersion GetLastCommittedVersion(EventSource eventSource, Guid eventSourceId)
{
return EventSourceVersion.Zero;
}
#pragma warning disable 1591 // Xml Comments
public CommittedEventStream GetForEventSource(EventSource eventSource, Guid eventSourceId)
{
return new CommittedEventStream(eventSourceId);
}
/// <summary>
/// Indicates whether the Event Source maintains state and requires to handles events to restore that state
/// </summary>
/// <param name="eventSource"><see cref="EventSource"/> to test for state</param>
/// <returns>true if the Event Source does not maintain state</returns>
public static bool IsStateless(this EventSource eventSource)
{
return(GetHandleMethodsFor(eventSource.GetType()).Count == 0);
}
