/// <summary>
/// Revises the aggregate configuration.
/// </summary>
/// <param name="context"></param>
/// <param name="item"></param>
/// <param name="configurationToUse"></param>
private void ReviseAggregateConfiguration(
ServerSystemContext context,
ArchiveItemState item,
AggregateConfiguration configurationToUse)
{
// set configuration from defaults.
if (configurationToUse.UseServerCapabilitiesDefaults)
{
AggregateConfiguration configuration = item.ArchiveItem.AggregateConfiguration;
if (configuration == null || configuration.UseServerCapabilitiesDefaults)
{
configuration = Server.AggregateManager.GetDefaultConfiguration(null);
}
configurationToUse.UseSlopedExtrapolation = configuration.UseSlopedExtrapolation;
configurationToUse.TreatUncertainAsBad = configuration.TreatUncertainAsBad;
configurationToUse.PercentDataBad = configuration.PercentDataBad;
configurationToUse.PercentDataGood = configuration.PercentDataGood;
}
// override configuration when it does not make sense for the item.
configurationToUse.UseServerCapabilitiesDefaults = false;
if (item.ArchiveItem.Stepped)
{
configurationToUse.UseSlopedExtrapolation = false;
}
}
/// <summary>
/// Returns the next child.
/// </summary>
private IReference NextChild()
{
UnderlyingSystem system = (UnderlyingSystem)this.SystemContext.SystemHandle;
NodeId targetId = null;
// check if a specific browse name is requested.
if (!QualifiedName.IsNull(base.BrowseName))
{
// check if match found previously.
if (m_position == Int32.MaxValue)
{
return(null);
}
// browse name must be qualified by the correct namespace.
if (m_source.BrowseName.NamespaceIndex != base.BrowseName.NamespaceIndex)
{
return(null);
}
// look for matching folder.
if (m_stage == Stage.Folders && m_folders != null)
{
for (int ii = 0; ii < m_folders.Length; ii++)
{
if (base.BrowseName.Name == m_folders[ii].Name)
{
targetId = ArchiveFolderState.ConstructId(m_folders[ii].UniquePath, m_source.NodeId.NamespaceIndex);
break;
}
}
}
// look for matching item.
else if (m_stage == Stage.Items && m_items != null)
{
for (int ii = 0; ii < m_items.Length; ii++)
{
if (base.BrowseName.Name == m_items[ii].Name)
{
targetId = ArchiveItemState.ConstructId(m_items[ii].UniquePath, m_source.NodeId.NamespaceIndex);
break;
}
}
}
// look for matching parent.
else if (m_stage == Stage.Parents)
{
ArchiveFolder parent = m_source.ArchiveFolder.GetParentFolder();
if (base.BrowseName.Name == parent.Name)
{
targetId = ArchiveFolderState.ConstructId(parent.UniquePath, m_source.NodeId.NamespaceIndex);
}
}
m_position = Int32.MaxValue;
}
// return the child at the next position.
else
{
// look for next folder.
if (m_stage == Stage.Folders && m_folders != null)
{
if (m_position >= m_folders.Length)
{
return(null);
}
targetId = ArchiveFolderState.ConstructId(m_folders[m_position++].UniquePath, m_source.NodeId.NamespaceIndex);
}
// look for next item.
else if (m_stage == Stage.Items && m_items != null)
{
if (m_position >= m_items.Length)
{
return(null);
}
targetId = ArchiveItemState.ConstructId(m_items[m_position++].UniquePath, m_source.NodeId.NamespaceIndex);
}
// look for matching parent.
else if (m_stage == Stage.Parents)
{
ArchiveFolder parent = m_source.ArchiveFolder.GetParentFolder();
if (parent != null)
{
targetId = ArchiveFolderState.ConstructId(parent.UniquePath, m_source.NodeId.NamespaceIndex);
}
}
}
// create reference.
if (targetId != null)
{
return(new NodeStateReference(ReferenceTypeIds.Organizes, false, targetId));
}
return(null);
}
/// <summary>
/// Creates items from embedded resources.
/// </summary>
private void CreateFolderFromResources(NodeState root, string folderName)
{
FolderState dataFolder = new FolderState(root);
dataFolder.ReferenceTypeId = ReferenceTypeIds.Organizes;
dataFolder.TypeDefinitionId = ObjectTypeIds.FolderType;
dataFolder.NodeId = new NodeId(folderName, NamespaceIndex);
dataFolder.BrowseName = new QualifiedName(folderName, NamespaceIndex);
dataFolder.DisplayName = dataFolder.BrowseName.Name;
dataFolder.WriteMask = AttributeWriteMask.None;
dataFolder.UserWriteMask = AttributeWriteMask.None;
dataFolder.EventNotifier = EventNotifiers.None;
root.AddChild(dataFolder);
AddPredefinedNode(SystemContext, root);
foreach (string resourcePath in Assembly.GetExecutingAssembly().GetManifestResourceNames())
{
if (!resourcePath.StartsWith("Quickstarts.HistoricalAccessServer.Data." + folderName))
{
continue;
}
ArchiveItem item = new ArchiveItem(resourcePath, Assembly.GetExecutingAssembly(), resourcePath);
ArchiveItemState node = new ArchiveItemState(SystemContext, item, NamespaceIndex);
node.ReloadFromSource(SystemContext);
dataFolder.AddReference(ReferenceTypeIds.Organizes, false, node.NodeId);
node.AddReference(ReferenceTypeIds.Organizes, true, dataFolder.NodeId);
AddPredefinedNode(SystemContext, node);
}
}