/// <summary>
/// Create the projection from the attribute linked to the function parameter
/// </summary>
/// <param name="attribute">
/// The attribute describing which projection to run
/// </param>
public Classification(ClassificationAttribute attribute,
IEventStreamSettings settings = null)
{
_domainName = attribute.DomainName;
_entityTypeName = attribute.EntityTypeName;
_instanceKey = attribute.InstanceKey;
_classifierTypeName = attribute.ClassifierTypeName;
if (null == settings)
{
_settings = new EventStreamSettings();
}
else
{
_settings = settings;
}
_connectionStringName = _settings.GetConnectionStringName(attribute);
if (null == _classificationProcessor)
{
_classificationProcessor = _settings.CreateClassificationProcessorForEventStream(attribute);
}
}
public static Task <Classification> BuildClassificationFromAttribute(ClassificationAttribute attribute,
ValueBindingContext context)
{
// If possible get the connection string to use
// Use this and the attribute to create a new classifier instance
return(Task <Classification> .FromResult(new Classification (attribute)));
}
/// <summary>
/// Create a classification processor to run over the given event stream's backing store
/// </summary>
public IClassificationProcessor CreateClassificationProcessorForEventStream(ClassificationAttribute attribute)
{
string connectionStringName = GetConnectionStringName(attribute);
if (GetBackingImplementationType(attribute).Equals(EventStreamSetting.EVENTSTREAMIMPLEMENTATIOIN_TABLE, StringComparison.OrdinalIgnoreCase))
{
return(TableEventStreamReader.CreateClassificationProcessor(attribute, connectionStringName: connectionStringName));
}
// Default to AppendBlob
return(BlobEventStreamReader.CreateClassificationProcessor(attribute, connectionStringName));
}
/// <summary>
/// Create the projection from the attribute linked to the function parameter
/// </summary>
/// <param name="attribute">
/// The attribute describing which projection to run
/// </param>
public Classification(ClassificationAttribute attribute,
IEventStreamSettings settings = null,
INotificationDispatcher dispatcher = null,
IClassificationSnapshotReader snapshotReader = null,
IClassificationSnapshotWriter snapshotWriter = null)
{
_domainName = attribute.DomainName;
_entityTypeName = attribute.EntityTypeName;
_instanceKey = attribute.InstanceKey;
_classifierTypeName = attribute.ClassifierTypeName;
if (null == settings)
{
_settings = new EventStreamSettings();
}
else
{
_settings = settings;
}
_connectionStringName = _settings.GetConnectionStringName(attribute);
if (null == _classificationProcessor)
{
_classificationProcessor = _settings.CreateClassificationProcessorForEventStream(attribute);
}
if (null == dispatcher)
{
// Create a new dispatcher
_notificationDispatcher = NotificationDispatcherFactory.NotificationDispatcher;
}
else
{
_notificationDispatcher = dispatcher;
}
if (null != snapshotReader)
{
_snapshotReader = snapshotReader;
}
if (null != snapshotWriter)
{
_snapshotWriter = snapshotWriter;
}
}
