public ProjectionProcessingStrategy CreateProjectionProcessingStrategy(
string name, ProjectionVersion projectionVersion, ProjectionNamesBuilder namesBuilder,
IQueryDefinition sourceDefinition, ProjectionConfig projectionConfig,
Func<IProjectionStateHandler> handlerFactory, IProjectionStateHandler stateHandler)
{
if (!sourceDefinition.DisableParallelismOption && projectionConfig.StopOnEof && sourceDefinition.ByStreams
&& sourceDefinition.DefinesFold && !string.IsNullOrEmpty(sourceDefinition.CatalogStream))
{
return new ParallelQueryProcessingStrategy(
name, projectionVersion, stateHandler, handlerFactory, projectionConfig, sourceDefinition,
namesBuilder, _logger, _spoolProcessingResponseDispatcher, _subscriptionDispatcher);
}
if (!sourceDefinition.DisableParallelismOption && projectionConfig.StopOnEof && sourceDefinition.ByStreams
&& sourceDefinition.DefinesFold && sourceDefinition.HasCategories())
{
return new ParallelQueryProcessingStrategy(
name, projectionVersion, stateHandler, handlerFactory, projectionConfig, sourceDefinition,
namesBuilder, _logger, _spoolProcessingResponseDispatcher, _subscriptionDispatcher);
}
return projectionConfig.StopOnEof
? (ProjectionProcessingStrategy)
new QueryProcessingStrategy(
name, projectionVersion, stateHandler, projectionConfig, sourceDefinition, _logger,
_subscriptionDispatcher)
: new ContinuousProjectionProcessingStrategy(
name, projectionVersion, stateHandler, projectionConfig, sourceDefinition, _logger,
_subscriptionDispatcher);
}
public ParallelQueryProcessingStrategy(
string name, ProjectionVersion projectionVersion, IProjectionStateHandler stateHandler,
Func <IProjectionStateHandler> handlerFactory, ProjectionConfig projectionConfig,
IQueryDefinition sourceDefinition, ProjectionNamesBuilder namesBuilder, ILogger logger,
SpooledStreamReadingDispatcher spoolProcessingResponseDispatcher,
ReaderSubscriptionDispatcher subscriptionDispatcher)
: base(name, projectionVersion, projectionConfig, sourceDefinition, logger, subscriptionDispatcher)
{
_stateHandler = stateHandler;
_projectionConfig = projectionConfig;
_sourceDefinition = sourceDefinition;
_namesBuilder = namesBuilder;
_spoolProcessingResponseDispatcher = spoolProcessingResponseDispatcher;
if (_sourceDefinition.CatalogStream == SystemStreams.AllStream)
{
_catalogStreamName = SystemStreams.AllStream;
}
else if (_sourceDefinition.HasCategories())
{
_catalogStreamName = _namesBuilder.GetCategoryCatalogStreamName(_sourceDefinition.Categories[0]);
}
else
{
_catalogStreamName = _sourceDefinition.CatalogStream;
}
}
public ParallelQueryProcessingStrategy(
string name, ProjectionVersion projectionVersion, IProjectionStateHandler stateHandler,
Func<IProjectionStateHandler> handlerFactory, ProjectionConfig projectionConfig,
IQueryDefinition sourceDefinition, ProjectionNamesBuilder namesBuilder, ILogger logger,
SpooledStreamReadingDispatcher spoolProcessingResponseDispatcher,
ReaderSubscriptionDispatcher subscriptionDispatcher)
: base(name, projectionVersion, projectionConfig, sourceDefinition, logger, subscriptionDispatcher)
{
_stateHandler = stateHandler;
_projectionConfig = projectionConfig;
_sourceDefinition = sourceDefinition;
_namesBuilder = namesBuilder;
_spoolProcessingResponseDispatcher = spoolProcessingResponseDispatcher;
if (_sourceDefinition.CatalogStream == SystemStreams.AllStream)
{
_catalogStreamName = SystemStreams.AllStream;
}
else if (_sourceDefinition.HasCategories())
{
_catalogStreamName = _namesBuilder.GetCategoryCatalogStreamName(_sourceDefinition.Categories[0]);
}
else
{
_catalogStreamName = _sourceDefinition.CatalogStream;
}
}
public ProjectionProcessingStrategy CreateProjectionProcessingStrategy(
string name, ProjectionVersion projectionVersion, ProjectionNamesBuilder namesBuilder,
IQueryDefinition sourceDefinition, ProjectionConfig projectionConfig,
Func <IProjectionStateHandler> handlerFactory, IProjectionStateHandler stateHandler)
{
if (!sourceDefinition.DisableParallelismOption && projectionConfig.StopOnEof && sourceDefinition.ByStreams &&
sourceDefinition.DefinesFold && !string.IsNullOrEmpty(sourceDefinition.CatalogStream))
{
return(new ParallelQueryProcessingStrategy(
name, projectionVersion, stateHandler, handlerFactory, projectionConfig, sourceDefinition,
namesBuilder, _logger, _spoolProcessingResponseDispatcher, _subscriptionDispatcher));
}
if (!sourceDefinition.DisableParallelismOption && projectionConfig.StopOnEof && sourceDefinition.ByStreams &&
sourceDefinition.DefinesFold && sourceDefinition.HasCategories())
{
return(new ParallelQueryProcessingStrategy(
name, projectionVersion, stateHandler, handlerFactory, projectionConfig, sourceDefinition,
namesBuilder, _logger, _spoolProcessingResponseDispatcher, _subscriptionDispatcher));
}
return(projectionConfig.StopOnEof
? (ProjectionProcessingStrategy)
new QueryProcessingStrategy(
name, projectionVersion, stateHandler, projectionConfig, sourceDefinition, _logger,
_subscriptionDispatcher)
: new ContinuousProjectionProcessingStrategy(
name, projectionVersion, stateHandler, projectionConfig, sourceDefinition, _logger,
_subscriptionDispatcher));
}
protected override IReaderStrategy CreateReaderStrategy(ITimeProvider timeProvider)
{
if (_sourceDefinition.HasCategories())
{
return(new ParallelQueryMasterReaderStrategy(
0, SystemAccount.Principal, timeProvider,
_namesBuilder.GetCategoryCatalogStreamName(_sourceDefinition.Categories[0])));
}
return(new ParallelQueryMasterReaderStrategy(
0, SystemAccount.Principal, timeProvider, _sourceDefinition.CatalogStream));
}