/// <summary>
/// Create a new StreamAction for appending to an existing stream
/// </summary>
/// <param name="streamId"></param>
/// <param name="events"></param>
/// <returns></returns>
public static StreamAction Append(EventGraph graph, Guid streamId, params object[] events)
{
var stream = new StreamAction(streamId, StreamActionType.Append);
stream.AddEvents(events.Select(graph.BuildEvent).ToArray());
return(stream);
}
public FetchLivePlan(EventGraph events, IEventIdentityStrategy <TId> identityStrategy, IDocumentStorage <TDoc, TId> documentStorage)
{
_events = events;
_identityStrategy = identityStrategy;
_documentStorage = documentStorage;
_aggregator = _events.Options.Projections.AggregatorFor <TDoc>();
}
/// <summary>
/// Create a new StreamAction for appending to an existing stream
/// </summary>
/// <param name="streamKey"></param>
/// <param name="events"></param>
/// <returns></returns>
public static StreamAction Append(EventGraph graph, string streamKey, params object[] events)
{
var stream = new StreamAction(streamKey, StreamActionType.Append);
stream._events.AddRange(events.Select(graph.BuildEvent));
return(stream);
}
public EventsTable(EventGraph events) : base(new DbObjectName(events.DatabaseSchemaName, "mt_events"))
{
var stringIdType = events.GetStreamIdDBType();
AddPrimaryKey(new TableColumn("seq_id", "bigint"));
AddColumn("id", "uuid", "NOT NULL");
AddColumn("stream_id", stringIdType, (events.TenancyStyle != TenancyStyle.Conjoined) ? $"REFERENCES {events.DatabaseSchemaName}.mt_streams ON DELETE CASCADE" : null);
AddColumn("version", "integer", "NOT NULL");
AddColumn("data", "jsonb", "NOT NULL");
AddColumn("type", "varchar(100)", "NOT NULL");
AddColumn("timestamp", "timestamptz", "default (now()) NOT NULL");
AddColumn <TenantIdColumn>();
AddColumn(new DotNetTypeColumn {
Directive = "NULL"
});
if (events.TenancyStyle == TenancyStyle.Conjoined)
{
Constraints.Add($"FOREIGN KEY(stream_id, {TenantIdColumn.Name}) REFERENCES {events.DatabaseSchemaName}.mt_streams(id, {TenantIdColumn.Name})");
Constraints.Add($"CONSTRAINT pk_mt_events_stream_and_version UNIQUE(stream_id, {TenantIdColumn.Name}, version)");
}
else
{
Constraints.Add("CONSTRAINT pk_mt_events_stream_and_version UNIQUE(stream_id, version)");
}
Constraints.Add("CONSTRAINT pk_mt_events_id_unique UNIQUE(id)");
}
public StreamsTable(EventGraph events) : base(new DbObjectName(events.DatabaseSchemaName, "mt_streams"))
{
var idColumn = events.StreamIdentity == StreamIdentity.AsGuid
? new TableColumn("id", "uuid")
: new TableColumn("id", "varchar");
if (events.TenancyStyle == TenancyStyle.Conjoined)
{
AddPrimaryKeys(new List <TableColumn>
{
idColumn,
new TenantIdColumn()
});
}
else
{
AddPrimaryKey(idColumn);
}
AddColumn("type", "varchar", "NULL");
AddColumn("version", "integer", "NOT NULL");
AddColumn("timestamp", "timestamptz", "default (now()) NOT NULL");
AddColumn("snapshot", "jsonb");
AddColumn("snapshot_version", "integer");
AddColumn("created", "timestamptz", "default (now()) NOT NULL").CanAdd = true;
if (events.TenancyStyle != TenancyStyle.Conjoined)
{
AddColumn <TenantIdColumn>();
}
}
/// <summary>
/// Create a new StreamAction for starting a new stream
/// </summary>
/// <param name="streamKey"></param>
/// <param name="events"></param>
/// <returns></returns>
/// <exception cref="EmptyEventStreamException"></exception>
public static StreamAction Start(EventGraph graph, string streamKey, params object[] events)
{
if (!events.Any())
{
throw new EmptyEventStreamException(streamKey);
}
return(new StreamAction(streamKey, StreamActionType.Start).AddEvents(events.Select(graph.BuildEvent).ToArray()));
}
public StreamStateByIdHandler(EventGraph events, T streamKey, string tenantId = null)
{
if (events.TenancyStyle == TenancyStyle.Conjoined && tenantId == null)
{
throw new ArgumentNullException(nameof(tenantId), $"{nameof(tenantId)} cannot be null for {TenancyStyle.Conjoined}");
}
_streamKey = streamKey;
_events = events;
_tenantId = tenantId;
}
protected EventMapping(EventGraph parent, Type eventType)
{
_parent = parent;
DocumentType = eventType;
EventTypeName = eventType.IsGenericType ? eventType.ShortNameInCode() : DocumentType.Name.ToTableAlias();
IdMember = DocumentType.GetProperty(nameof(IEvent.Id));
_inner = new DocumentMapping(eventType, parent.Options);
}
protected EventMapping(EventGraph parent, Type eventType)
{
_parent = parent;
DocumentType = eventType;
EventTypeName = Alias = ToEventTypeName(DocumentType);
IdMember = DocumentType.GetProperty(nameof(IEvent.Id));
// TODO -- may need to pull StoreOptions through here.
_inner = new DocumentMapping(eventType);
}
protected EventMapping(EventGraph parent, Type eventType)
{
_options = parent.Options;
_parent = parent;
DocumentType = eventType;
EventTypeName = Alias = DocumentType.Name.ToTableAlias();
IdMember = DocumentType.GetProperty(nameof(IEvent.Id));
_inner = new DocumentMapping(eventType, parent.Options);
}
public static EventGraph UseAggregatorLookup(this EventGraph eventGraph, AggregationLookupStrategy strategy)
{
if (strategy == AggregationLookupStrategy.UsePublicApply)
{
eventGraph.UseAggregatorLookup(new AggregatorLookup(type => typeof(Aggregator <>).CloseAndBuildAs <IAggregator>(type)));
}
else if (strategy == AggregationLookupStrategy.UsePrivateApply)
{
eventGraph.UseAggregatorLookup(new AggregatorLookup(type => typeof(AggregatorApplyPrivate <>).CloseAndBuildAs <IAggregator>(type)));
}
return(eventGraph);
}
public StreamsTable(EventGraph events) : base(new DbObjectName(events.DatabaseSchemaName, "mt_streams"))
{
var idColumn = events.StreamIdentity == StreamIdentity.AsGuid
? new StreamTableColumn("id", x => x.Id)
: new StreamTableColumn("id", x => x.Key);
if (events.TenancyStyle == TenancyStyle.Conjoined)
{
AddPrimaryKeys(new List <TableColumn>
{
idColumn,
new TenantIdColumn()
});
}
else
{
AddPrimaryKey(idColumn);
}
AddColumn(new StreamTableColumn("type", x => x.AggregateTypeName)
{
Directive = "NULL"
});
AddColumn(new StreamTableColumn("version", x => x.Version)
{
Directive = "NOT NULL"
});
AddColumn(new StreamTableColumn("timestamp", x => x.Timestamp)
{
Type = "timestamptz",
Directive = "default (now()) NOT NULL",
Writes = false
});
AddColumn("snapshot", "jsonb");
AddColumn("snapshot_version", "integer");
AddColumn(new StreamTableColumn("created", x => x.Created)
{
Directive = "default (now()) NOT NULL", Writes = false, Type = "timestamptz"
});
if (events.TenancyStyle != TenancyStyle.Conjoined)
{
AddColumn <TenantIdColumn>();
}
}
protected EventMapping(EventGraph parent, Type eventType)
{
TenancyStyle = parent.TenancyStyle;
_parent = parent;
DocumentType = eventType;
EventTypeName = eventType.IsGenericType ? eventType.ShortNameInCode() : DocumentType.Name.ToTableAlias();
IdMember = DocumentType.GetProperty(nameof(IEvent.Id));
_inner = new DocumentMapping(eventType, parent.Options);
DotNetTypeName = $"{eventType.FullName}, {eventType.Assembly.GetName().Name}";
}
public StreamsTable(EventGraph events) : base(new DbObjectName(events.DatabaseSchemaName, "mt_streams"))
{
AddPrimaryKey(events.StreamIdentity == StreamIdentity.AsGuid
? new TableColumn("id", "uuid")
: new TableColumn("id", "varchar"));
AddColumn("type", "varchar", "NULL");
AddColumn("version", "integer", "NOT NULL");
AddColumn("timestamp", "timestamptz", "default (now()) NOT NULL");
AddColumn("snapshot", "jsonb");
AddColumn("snapshot_version", "integer");
AddColumn("created", "timestamptz", "default (now()) NOT NULL").CanAdd = true;
AddColumn <TenantIdColumn>();
}
public void PrepareEvents(int currentVersion, EventGraph graph, Queue <long> sequences, IMartenSession session)
{
var timestamp = DateTimeOffset.UtcNow;
if (AggregateType != null)
{
AggregateTypeName = graph.AggregateAliasFor(AggregateType);
}
var i = currentVersion;
if (currentVersion != 0)
{
// Guard logic for optimistic concurrency
if (ExpectedVersionOnServer.HasValue)
{
if (currentVersion != ExpectedVersionOnServer.Value)
{
throw new EventStreamUnexpectedMaxEventIdException((object)Key ?? Id, AggregateType, ExpectedVersionOnServer.Value, currentVersion);
}
}
ExpectedVersionOnServer = currentVersion;
}
foreach (var @event in _events)
{
@event.Version = ++i;
@event.DotNetTypeName = graph.DotnetTypeNameFor(@event.EventType);
var mapping = graph.EventMappingFor(@event.EventType);
@event.EventTypeName = mapping.EventTypeName;
if (@event.Id == Guid.Empty)
{
@event.Id = CombGuidIdGeneration.NewGuid();
}
@event.Sequence = sequences.Dequeue();
@event.TenantId ??= session.Tenant.TenantId;
@event.Timestamp = timestamp;
}
Version = Events.Last().Version;
}
public EventDocumentStorage(EventGraph graph, EventQueryMapping mapping, ISerializer serializer)
{
_graph = graph;
_mapping = mapping;
FromObject = _mapping.Table.QualifiedName;
Fields = mapping;
if (graph.StreamIdentity == StreamIdentity.AsGuid)
{
IdType = typeof(Guid);
_selector = new EventSelector(graph, serializer);
}
else
{
IdType = typeof(string);
_selector = new StringIdentifiedEventSelector(graph, serializer);
}
}
public EventStreamStorage(EventGraph graph)
{
_graph = graph;
if (_graph.JavascriptProjectionsEnabled)
{
throw new NotSupportedException("Marten does not yet support Javascript projections");
}
if (_graph.AsyncProjectionsEnabled)
{
AppendEventFunction = new FunctionName(_graph.DatabaseSchemaName, "mt_append_event_with_buffering");
}
else
{
AppendEventFunction = new FunctionName(_graph.DatabaseSchemaName, "mt_append_event");
}
}
public EventsTable(EventGraph events) : base(new DbObjectName(events.DatabaseSchemaName, "mt_events"))
{
AddPrimaryKey(new EventTableColumn("seq_id", x => x.Sequence));
AddColumn(new EventTableColumn("id", x => x.Id)
{
Directive = "NOT NULL"
});
AddColumn(new StreamIdColumn(events));
AddColumn(new EventTableColumn("version", x => x.Version)
{
Directive = "NOT NULL"
});
AddColumn <EventJsonDataColumn>();
AddColumn <EventTypeColumn>();
AddColumn(new EventTableColumn("timestamp", x => x.Timestamp)
{
Directive = "default (now()) NOT NULL", Type = "timestamptz"
});
AddColumn <TenantIdColumn>();
AddColumn(new DotNetTypeColumn {
Directive = "NULL"
});
if (events.TenancyStyle == TenancyStyle.Conjoined)
{
Constraints.Add(
$"FOREIGN KEY(stream_id, {TenantIdColumn.Name}) REFERENCES {events.DatabaseSchemaName}.mt_streams(id, {TenantIdColumn.Name})");
Constraints.Add(
$"CONSTRAINT pk_mt_events_stream_and_version UNIQUE(stream_id, {TenantIdColumn.Name}, version)");
}
else
{
Constraints.Add("CONSTRAINT pk_mt_events_stream_and_version UNIQUE(stream_id, version)");
}
Constraints.Add("CONSTRAINT pk_mt_events_id_unique UNIQUE(id)");
}
protected EventMapping(EventGraph parent, Type eventType)
{
TenancyStyle = parent.TenancyStyle;
_parent = parent;
DocumentType = eventType;
EventTypeName = eventType.IsGenericType ? eventType.ShortNameInCode() : DocumentType.Name.ToTableAlias();
IdMember = DocumentType.GetProperty(nameof(IEvent.Id));
_inner = new DocumentMapping(eventType, parent.Options);
DotNetTypeName = $"{eventType.FullName}, {eventType.Assembly.GetName().Name}";
ISqlFragment filter = new WhereFragment($"d.type = '{EventTypeName}'");
filter = filter.CombineAnd(IsNotArchivedFilter.Instance);
if (parent.TenancyStyle == TenancyStyle.Conjoined)
{
filter = filter.CombineAnd(CurrentTenantFilter.Instance);
}
_defaultWhereFragment = filter;
}
internal StringIdentifiedEventSelector(EventGraph events, ISerializer serializer)
{
Events = events;
_serializer = serializer;
}
public EventStoreDatabaseObjects(EventGraph parent)
{
_parent = parent;
}
public EventStreamAppender(EventGraph graph)
{
_graph = graph;
AppendEventFunction = new FunctionName(_graph.DatabaseSchemaName, "mt_append_event");
}
public EventStoreDatabaseObjects(EventGraph parent)
{
_parent = parent;
}
public EventStreamAppender(EventGraph graph)
{
_graph = graph;
AppendEventFunction = new DbObjectName(_graph.DatabaseSchemaName, "mt_append_event");
}
public EventSequenceFetcher(EventGraph graph, int number)
{
_sql = $"select nextval('{graph.DatabaseSchemaName}.mt_events_sequence') from generate_series(1,{number})";
}
internal EventSelector(EventGraph events, ISerializer serializer)
{
Events = events;
_serializer = serializer;
}
public AppendEventsOperation(EventStream stream, EventGraph eventGraph)
{
Stream = stream;
_eventGraph = eventGraph;
}
public AppendEventFunction(EventGraph events) : base(new DbObjectName(events.DatabaseSchemaName, "mt_append_event"))
{
_events = events;
}
public StreamStateByGuidHandler(EventGraph events, Guid streamId, string tenantId = null) : base(events, streamId, tenantId)
{
}
public StreamStateByStringHandler(EventGraph events, string streamKey, string tenantId = null) : base(events, streamKey, tenantId)
{
}
public abstract IStorageOperation AppendEvent(EventGraph events, IMartenSession session, StreamAction stream, IEvent e);
public EventStreamStorage(EventGraph graph)
{
_graph = graph;
}