public Fetcher(IDocumentStore store, DaemonSettings settings, AsyncOptions options, IDaemonLogger logger, IDaemonErrorHandler errorHandler, IEnumerable <Type> eventTypes)
{
_settings = settings;
_options = options;
_logger = logger;
_errorHandler = errorHandler;
State = FetcherState.Waiting;
// TODO -- this will have to change
_tenant = store.Tenancy.Default;
_streamIdentity = store.Events.StreamIdentity;
_selector = store.Events.StreamIdentity == StreamIdentity.AsGuid
? (IEventSelector) new EventSelector(store.Events, store.Advanced.Serializer)
: new StringIdentifiedEventSelector(store.Events, store.Advanced.Serializer);
EventTypeNames = eventTypes.Select(x => store.Events.EventMappingFor(x).Alias).ToArray();
var fields = _selector.SelectFields().Join(", ");
_sql =
$@"
select seq_id from {_selector.Events.DatabaseSchemaName}.mt_events where seq_id > :last and seq_id <= :limit and extract(epoch from age(transaction_timestamp(), {_selector.Events.DatabaseSchemaName}.mt_events.timestamp)) >= :buffer order by seq_id;
select {fields} from {_selector.Events.DatabaseSchemaName}.mt_events where seq_id > :last and seq_id <= :limit and type = ANY(:types) and extract(epoch from age(transaction_timestamp(), {_selector.Events.DatabaseSchemaName}.mt_events.timestamp)) >= :buffer order by seq_id;
select min(seq_id) from {_selector.Events.DatabaseSchemaName}.mt_events where seq_id > :limit and type = ANY(:types) and extract(epoch from age(transaction_timestamp(), {_selector.Events.DatabaseSchemaName}.mt_events.timestamp)) >= :buffer;
select max(seq_id) from {_selector.Events.DatabaseSchemaName}.mt_events where seq_id >= :limit and extract(epoch from age(transaction_timestamp(), {_selector.Events.DatabaseSchemaName}.mt_events.timestamp)) >= :buffer
".Replace(" as d", "");
}
public EventQueryHandler(IEventSelector selector, TIdentity streamId, int version = 0, DateTime?timestamp = null, TenancyStyle tenancyStyle = TenancyStyle.Single, string tenantId = null)
{
if (timestamp != null && timestamp.Value.Kind != DateTimeKind.Utc)
{
throw new ArgumentOutOfRangeException(nameof(timestamp), "This method only accepts UTC dates");
}
if (_tenancyStyle == TenancyStyle.Conjoined && tenantId == null)
{
throw new ArgumentNullException(nameof(tenantId), $"{nameof(tenantId)} cannot be null for {TenancyStyle.Conjoined}");
}
_selector = selector;
_streamId = streamId;
_version = version;
_timestamp = timestamp;
_tenancyStyle = tenancyStyle;
_tenantId = tenantId;
}
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 EventStore(DocumentSessionBase session, DocumentStore store, ITenant tenant)
{
_session = session;
_store = store;
_tenant = tenant;
// TODO -- we can make much more of this lazy
StreamIdentity = _store.Events.StreamIdentity;
if (StreamIdentity == StreamIdentity.AsGuid)
{
_selector = new EventSelector(_store.Events, _store.Serializer);
}
else
{
_selector = new StringIdentifiedEventSelector(_store.Events, _store.Serializer);
}
}
