/// <summary>
/// Restore either <see cref="IWorkplanStep.Inputs"/> or <see cref="IWorkplanStep.Outputs"/>.
/// </summary>
private static IConnector[] RestoreReferences(StepEntity stepEntity, ConnectorRole role, IDictionary <long, IConnector> connectors)
{
var referenceEntities = stepEntity.Connectors.Where(c => c.Role == role).ToList();
var references = new IConnector[referenceEntities.Count];
for (int index = 0; index < referenceEntities.Count; index++)
{
var referenceEntity = referenceEntities.First(f => f.Index == index);
if (referenceEntity.ConnectorId.HasValue)
{
references[index] = connectors[referenceEntity.ConnectorId.Value];
}
}
return(references);
}
/// <summary>
/// Update either inputs or outputs in the database
/// </summary>
private static void UpdateConnectors(IConnectorReferenceRepository referenceRepo, StepEntity stepEntity, IWorkplanStep step, ConnectorRole role, IDictionary <long, ConnectorEntity> connectors)
{
// Update inputs first
var connectorArray = role == ConnectorRole.Input ? step.Inputs : step.Outputs;
for (int index = 0; index < connectorArray.Length; index++)
{
var connector = connectorArray[index];
var connectorReference = stepEntity.Connectors.FirstOrDefault(c => c.Role == role && c.Index == index);
if (connectorReference == null && connector != null)
{
// Reference not yet stored in database
connectorReference = referenceRepo.Create(index, role);
connectorReference.Step = stepEntity;
connectorReference.Connector = connectors[connector.Id];
}
else if (connectorReference != null && connector != null)
{
// Reference possible modified
connectorReference.Connector = connectors[connector.Id];
}
else if (connectorReference != null)
{
// Reference removed
connectorReference.Connector = null;
}
else
{
// Connector null and no entity exists
connectorReference = referenceRepo.Create(index, role);
connectorReference.Step = stepEntity;
}
}
}