/// <summary>
/// Returns a folder object for the specified node.
/// </summary>
public ArchiveFolderState GetFolderState(ISystemContext context, string rootId)
{
StringBuilder path = new StringBuilder();
path.Append(m_configuration.ArchiveRoot);
path.Append('/');
path.Append(rootId);
ArchiveFolder folder = new ArchiveFolder(rootId, new DirectoryInfo(path.ToString()));
return new ArchiveFolderState(context, folder, m_namespaceIndex);
}
/// <summary>
/// Returns a folder object for the specified node.
/// </summary>
public ArchiveFolderState GetFolderState(ISystemContext context, string rootId)
{
StringBuilder path = new StringBuilder();
path.Append(m_configuration.ArchiveRoot);
path.Append('/');
path.Append(rootId);
ArchiveFolder folder = new ArchiveFolder(rootId, new DirectoryInfo(path.ToString()));
return(new ArchiveFolderState(context, folder, m_namespaceIndex));
}
/// <summary>
/// Creates a new instance of a folder.
/// </summary>
public ArchiveFolderState(ISystemContext context, ArchiveFolder folder, ushort namespaceIndex)
:
base(null)
{
m_archiveFolder = folder;
this.TypeDefinitionId = ObjectTypeIds.FolderType;
this.SymbolicName = folder.Name;
this.NodeId = ConstructId(folder.UniquePath, namespaceIndex);
this.BrowseName = new QualifiedName(folder.Name, namespaceIndex);
this.DisplayName = new LocalizedText(this.BrowseName.Name);
this.Description = null;
this.WriteMask = 0;
this.UserWriteMask = 0;
this.EventNotifier = EventNotifiers.None;
}
/// <summary>
/// Creates a new instance of a folder.
/// </summary>
public ArchiveFolderState(ISystemContext context, ArchiveFolder folder, ushort namespaceIndex)
:
base(null)
{
m_archiveFolder = folder;
this.TypeDefinitionId = ObjectTypeIds.FolderType;
this.SymbolicName = folder.Name;
this.NodeId = ConstructId(folder.UniquePath, namespaceIndex);
this.BrowseName = new QualifiedName(folder.Name, namespaceIndex);
this.DisplayName = new LocalizedText(this.BrowseName.Name);
this.Description = null;
this.WriteMask = 0;
this.UserWriteMask = 0;
this.EventNotifier = EventNotifiers.None;
}
/// <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);
}
