public Task <IReadOnlyList <IEvent> > FetchStream(Guid streamId, long version = 0, DateTime?timestamp = null)
{
var selector = _parent.Tenant.EventStorage();
var statement = new EventStatement(selector)
{
StreamId = streamId, Version = version, Timestamp = timestamp, TenantId = _parent.Tenant.TenantId
};
IQueryHandler <IReadOnlyList <IEvent> > handler = new ListQueryHandler <IEvent>(statement, selector);
return(AddItem(handler));
}
private void reset()
{
_session = (QuerySession)_store.QuerySession();
_storage = _session.EventStorage();
_statement = new EventStatement(_storage)
{
Filters = _filters
};
_handler = (IQueryHandler <IReadOnlyList <IEvent> >) new ListQueryHandler <IEvent>(_statement, _storage);
_cancellation = new CancellationTokenSource(5.Seconds());
_cancellation.Token.Register(teardown);
}
public EventFetcher(IDocumentStore store, ISqlFragment[] filters)
{
_store = store;
_filters = filters;
using var session = (QuerySession)_store.QuerySession();
_storage = session.EventStorage();
_statement = new EventStatement(_storage)
{
Filters = _filters
};
_handler = new ListQueryHandler <IEvent>(_statement, _storage);
}
private static EventOption ParseOption(EventStatement e)
{
if (e.Options == null || e.Options.Count == 0)
{
return new EventOption()
{
Required = true
}
}
;
var o = new EventOption();
foreach (var option in e.Options.Where(n => n.Kind == SyntaxKind.OptionDeclaration))
{
switch (option.Value)
{
case Keyword._Required:
o.Required = true;
break;
case Keyword._RequiredInOrder:
o.RequiredInOrder = true;
break;
case Keyword._Optional:
o.Optional = true;
break;
case Keyword._Unexpected:
o.Unexpected = true;
break;
case Keyword._TimeToNext:
o.TimeToNext = true;
o.TimeToNextParameters = option.Parameters;
break;
case Keyword._TimeToNextKnownIdle:
o.TimeToNextKnownIdle = true;
o.TimeToNextKnownIdleParameters = option.Parameters;
break;
case Keyword._OneOrMore:
o.OneOrMore = true;
break;
case Keyword._Frequency:
o.Frequency = true;
o.FrequencyParameters = option.Parameters;
break;
case Keyword._FrequencyPerFile:
o.FrequencyPerFile = true;
o.FrequencyPerFileParameters = option.Parameters;
break;
case Keyword._TimeTo:
o.TimeTo = true;
o.TimeToParameters = option.Parameters;
break;
case Keyword._TimeToOr:
o.TimeToOr = true;
o.TimeToOrParameters = option.Parameters;
break;
case Keyword._TimeFrom:
o.TimeFrom = true;
o.TimeFromParameters = option.Parameters;
break;
case Keyword._HideEvent:
o.HideEvent = true;
break;
case Keyword._Hide:
o.Hide = true;
break;
case Keyword._Value:
o.Value = true;
o.ValueParameters = option.Parameters;
break;
case Keyword._LastRepeat:
o.LastRepeat = true;
// OneOrMore is required when using LastRepeat as you are looking for OneOrMore Events that repeat - Sara
o.OneOrMore = true;
break;
case Keyword._FirstRepeat:
o.FirstRepeat = true;
// OneOrMore is required when using FirstRepeat as you are looking for OneOrMore Events that repeat - Sara
o.OneOrMore = true;
break;
case Keyword._Prior:
o.Prior = true;
o.PriorIndex = -1;
o.PriorPattern = "-1";
foreach (var item in option.Parameters)
{
if (int.TryParse(item, out int index))
{
o.PriorIndex = index;
}
else
{
o.PriorPattern = item;
}
}
if (o.PriorIndex == -1)
{
o.PriorIndex = 1;
}
if (o.PriorPattern == "-1")
{
throw new OptionException($@"{PATTERN_SYNTAX_ERROR}
UnExpected '<>' Expected 'Prior(<EventPattern>)' - You must specify the prior EventPattern", option.Span);
}
break;
case Keyword._Name:
o.Name = true;
if (option.Parameters.Count == 0)
{
throw new OptionException($@"{PATTERN_SYNTAX_ERROR}
UnExpected Name Expected 'Name (<Name>)'", option.Span);
}
if (option.Parameters.Count > 1)
{
throw new OptionException($@"{PATTERN_SYNTAX_ERROR}
UnExpected Name ({option.Parameters.ToCsv()}) Expected 'Name (""<Name>"")'", option.Span);
}
o.NameParameter = option.Parameters[0];
break;
case Keyword._BodyStop:
o.BodyStop = true;
if (option.Parameters.Count == 0)
{
throw new OptionException($@"{PATTERN_SYNTAX_ERROR}
UnExpected BodyStop Expected 'BodyStop (<EventPattern>)'", option.Span);
}
if (option.Parameters.Count > 1)
{
throw new OptionException($@"{PATTERN_SYNTAX_ERROR}
UnExpected BodyStop ({option.Parameters.ToCsv()}) Expected 'BodyStop (""<EventPattern>"")'", option.Span);
}
o.BodyStopParameter = option.Parameters[0];
break;
}
}
return(o);
}
